115321977 Syabas Guidelines Draft Final 080620071

DRAFT FINAL

SYABAS GUIDELINES ON PLANNING AND DESIGN FOR WATER SUPPLY SYSTEM

i SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

SYABAS GUIDELINES ON PLANNING AND DESIGN FOR

WATER SUPPLY SYSTEM

Table of Contents

FOREWORD

ABBREVIATIONS

1.0 GENERAL

1.1 Scope

1.2 Definitions

1.3 Standards and Specifications

1.4 Interpretation of Guidelines

2.0 PLANNING FOR WATER SUPPLY

2.1 General

2.2 Development Proposals

2.2.1 General

2.2.2 Reservoirs and Tanks

2.2.3 Site Dimensions for Reservoirs and Tanks

3.0 EXTERNAL WATER SUPPLY SYSTEM

3.1 Application for Source of Water Supply

3.2 Concept Design Submissions

3.3 Detailed Design Submissions

3.3.1 Civil Works

3.3.2 Mechanical and Electrical Works

3.3.3 Geotechnical Works

3.4 Design Guidelines

3.4.1 Water Pipes

a. Hydraulic Requirements

b. Pipe Laying Requirements

c. Valves and Utilities


a. Storage Capacity

b. Hydraulic Requirements

c. Boundary Setback

d. Materials and Measures

e. Pipeworks Inside Reservoirs and Tanks

f. Control Valves

g. Pipe Strainers

h. Miscellaneous

3.4.3 Pumping Stations

a. General

b. Pump Plinths

3.4.4 Geotechnical Considerations

a. Reservoir, Tank and Pumping Station Buffer Zones for Slopes

b. Slope Stability Analysis

c. Drainage Provisions

d. Slope Surface Protection

e. Reservoir, Tank and Pumping Station Foundation

3.6 Materials

3.7 Checklist

4.0 INTERNAL PLUMBING SYSTEM

4.1 Plans

4.2 Technical Requirements

4.2.1 General

4.2.2 Pipes and Valves

4.2.3 Water Tanks within Consumer Premises

a. Capacity

b. Pipeworks and Materials

c. Safety and Security

4.2.4 Pumping Systems

4.2.5 Hot Water Systems

4.2.6 Swimming Pools

4.3 Water Conservation

4.3.1 General

DRAFT FINAL


ii SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

4.3.2 Water Conservation Measures

4.4 Checklist

5.0 METERING

5.1 General

5.2 Locations of Meters

5.3 Sizes of Meters

5.4 Automatic Meter Reading System (AMR)

5.5 Meter stands

5.5.1 General

5.5.2 Markings for Meter stands

6.0 ELECTRICAL SYSTEM

6.1 Standards, Code of Practice, Rules and Regulations


6.3 Power Supply Requirements

6.4 HT Installations

6.5 LV Installations

6.6 Essential Power Supply

6.7 Motor Starter Panels

6.8 Electric Motors

6.9 Internal Lighting and Power

6.10 External Lighting Installations

6.11 Lighting and Surge Protection Systems

6.12 Earthing Systems

6.13 Electrical Spare Parts

6.14 Electrical As-Built Fitted Drawings

6.15 Testing and Commissioning

6.16 Variable Speed Drive (VSD) Pumping System

6.17 Checklist

7.0 MECHANICAL SYSTEM

7.1 General


7.2.1 First Stage (Design Stage before Tender Award)

7.2.2 Second Stage (After Tender Award during Approval Stage of Equipment)

7.3 Planned Water Quantity and Number of Pump Units

7.4 Pumpsets

7.4.1 Duties and Selection

7.4.2 Horizontal Split Casing Pumps

7.4.3 End Suction Pumps

7.4.4 Pump Casing, Rotating Element, Driving Coupling, Gland Sealing and Other Pump

Accessories

7.5 Pressure Gauges

7.6 Suction and Delivery Pipes

7.7 Pipeworks

7.8 Valves

7.8.1 Sluice Valves

7.8.2 Butterfly Valves

7.8.3 Non-slam Type Check Valves and Surge Calculation

7.8.4 Altitude Valves

7.9 Surge Suppression Systems

7.10 Mechanical Handling Equipment

7.11 Mechanical Spare Parts

7.12 Variable Speed Drive (VSD) Pumping System

7.13 Checklist

8.0 SCADA/ TELEMETRY SYSTEM

8.1 General

8.2 Hardware Requirements

8.2.1 General

8.2.2 Outstations

8.2.3 Remote Terminal Units

8.2.4 GPRS/ GSM Modem

8.2.5 Video Cameras

DRAFT FINAL


iii SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

8.3 Communication Systems

8.4 Operation Requirements on SCADA System

8.4.1 Introduction

8.4.2 Suction Reservoirs and Suction Tanks

8.4.3 Pumping stations


8.4.5 Telemetry Systems for Gravity Fed Reservoirs and Tanks

8.5 Spare Parts

8.6 Checklist

9.0 CAPITAL COST CONTRIBUTION (SKP)

9.1 Definitions

9.2 Charge Rates

9.3 Exemption from Capital Cost Contribution

9.4 Effective Date

10.0 SERVICE CHARGES

10.1 Charges for Connection to Public Mains

10.2 Charges for Disconnection and Reconnection

10.3 Charges for Meter Tests

10.4 Charges for Swimming Bath Tests

10.5 Charges for Licenses to Carry Out Work

10.6 Charges for Pressure Test on Mains

10.7 Agency Fees

10.8 Charges for New Installation without Tapping or Tee-Connection

10.9 Supervision Charges for Connection

APPENDICES

A Standard Forms

B Standard Drawings

C Design Checklists

FOREWORD

Syarikat Bekalan Air Selangor Sdn. Bhd. (SYABAS) is responsible for the water supply services in the

State of Selangor and the Federal Territories of Kuala Lumpur and Putrajaya. Qualified consulting

engineers, planners and architects or other agents of the Developers are required to submit their design

proposals for water supply works to SYABAS in order to ensure that the water supply systems meet the

planning, design, operation and maintenance requirements of SYABAS.

This document is a statement of general policies and design standards expected of new water supply

works for external water supply system as well as internal plumbing system in the State of Selangor and

the Federal Territories of Kuala Lumpur and Putrajaya.

The document has been adapted and revised from the document “GARIS PANDUAN PENGEMUKAAN –

Sistem Bekalan Air Di Negeri Selangor, Wilayah Persekutuan Kuala Lumpur dan Putrajaya”, which was

previously published by Perbadanan Urus Air Selangor Berhad (PUAS).

The standards and parameters set out in this document may be subject to revision. Nothing herein shall

be construed as relieving the responsibilities of any person or entity responsible for the design, execution

and completion of the works. The consulting engineers, planners and architects shall be expected to

exercise professional judgement and sound engineering practices in developing the design proposals.

DRAFT FINAL


iv SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

ABBREVIATIONS

NAMES

ANSI - American National Standards Institute

ASME - American Society of Mechanical Engineers

BOMBA - Jabatan Bomba dan Penyelamat (Fire and Rescue Department)

BSI - British Standards Institution

DCA - Department of Civil Aviation

DOE - Department of Environment

DOSH - Department of Occupancy Safety and Health of Malaysia

EN - European Committee of Standardization

IEC - International Electrotechnical Commission

IEEE - Institute of Electrical and Electronics Engineers

IES - Illuminating Engineering Society

ISO - International Organization for Standardization

JKAS - Jabatan Kawalselia Air Selangor

JKR - Jabatan Kerja Raya

MASMA - Manual Saliran Mesra Alam Malaysia

MWA - Malaysian Water Association

PUAS - Perbadanan Urus Air Selangor Berhad

SIRIM - Standards and Industrial Research Institution of Malaysia

ST - Energy Commission (Suruhanjaya Tenaga)

SYABAS - Syarikat Bekalan Air Selangor Sdn. Bhd.

TM - Telekom Malaysia Berhad

TNB - Tenaga Nasional Berhad

TERMS

ABS - Acrylonitrile Butadiene Styrene

ACB - Air Circuit Breaker

AMR - Automatic Meter Reading

ARI - Average Recurrence Interval AutoCAD - Automation Computer Aided Design

BS - British Standard

BWL - Bottom Water Level CD - Compact Disc

CEMEP-EU - European Committee of Manufacturers of Electrical Machines and Power Electronics and European Commission

CT - Current Transformer

DB - Distribution Board

Dia. - Diameter

DMZ - District Meter Zone

DOL - Direct On-line

Elev. - Elevation ELR - Earth Leakage Relay

etc - et cetera

FRP - Fibre Reinforced Polyester FS - Factor of Safety

fsd - Full-scale Deflection

G.I. - Galvanised Iron GPRS - General Packet Radio Service

GRP - Glass Reinforced Plastic

GSM - Global System for Mobile Communications

HDPE - High Density Polyethylene HGL - Hydraulic Grade Line HL - Head Loss

HSL - Highest Supply Level HT - High Tension

HWC - Hazen-William Coefficient

ID - Internal Diameter

IDMT - Inverse Definite Minimum Time

IP - Ingress Protection

LED - Light Emitting Diode

LPU - Lightning Protection Unit

LV - Low Voltage

M&E - Mechanical and Electrical

MCB - Miniature Circuit breaker

MCCB - Moulded Case Circuit Breaker

MMI - Man-Machine Interface

MS - Malaysian Standards

NPSH - Net Positive Suction Head NRW - Non Revenue Water O&M - Operation and Maintenance ODL - Ordnance Datum Level p.a - Per annum

PC - Personal Computer

PE - Polyethylene

PID - Proportional, Integral, Derivative

PKNS - Perbadanan Kemajuan Negeri Selangor

PLC - Programmable Logic Controller

PN (16) - Pressure Number of 16 bars POB - Polyolefine Blend

PP-R - Polypropylene Random Copolymer

PT - Power Transformer

PTFE - Polyetrafluoroethylene PVC - Polyvinyl Chloride

DRAFT FINAL


v SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

RBE - Report-by-exception

RC - Reinforced Concrete RCD - Residual Current Device

RL - Reduced level RTU - Remote Terminal Unit

SCADA - Supervisory Control and Data Acquisition

Sdn. Bhd. - Sendirian Berhad

SKP - Sumbangan Kos Pembangunan (Capital Cost Contribution

SMS - Short Message Service

SPT - Standard Penetration Test

SWA - Steel Wire Armoured

SWG - Standard Wire Gauge

TEFC - Totally Enclosed, Fan Cooled

TWL - Top Water Level uPVC - Unplasticised Polyvinyl Chloride v:h - Vertical Height : Horizontal Length

VSD - Variable Speed Drive

WC - Water Closet

WTP - Water Treatment Plant

XLPE - Crosslinked Polyethylene

UNITS

% - Percent

A - Ampere

d - Day

deg. C - degree Celsius

deg. F - degree Fahrenheit

ft2 - Square Foot

ha - Hectare hr - Hour

kA - Kilo Ampere

kg - Kilogram

km - Kilometre

kW - Kilowatt

l/d - Litre per day

l/s - Litre per second

lcd - Litre per capita per day m - Metre

m/s - Metre per second

m3 - Cubic Metre

m3/hr - Cubic Metre per hour

m3/month - Cubic Metre per month

mg/l - Milligram per litre Ml - Million Litres

Mld, Ml/d - Million Litres per day mm - Millimetre

mm2 - Square Millimetre

Mohm - Mega Ohm

No. - Number rpm - Revolution per minute

V - Volt

Var - Volt-ampere reactive

W - Watt

Yr - Year

DRAFT FINAL


1-1SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

1.0 GENERAL

1.1 SCOPE

These guidelines deal with the planning and design for water supply systems in the State

of Selangor and the Federal Territories of Kuala Lumpur and Putrajaya. It covers external

water supply systems as well as internal plumbing systems for individual premises. It does

not cover all aspects of water supplies for fire fighting.

The guidelines are prepared to provide guidance to engineers, architects, developers,

contractors and licensed plumbers, and should be of interest also to water consumers.

1.2 DEFINITIONS

For the purpose of these guidelines unless the context otherwise requires, the following

definitions shall apply:-

a. Approved Standard

Standard or specification or code of practice issued by Standards and Industrial

Research Institution of Malaysia (SIRIM) or if such is non-existent, by the British

Standards Institution (BSI) as amended or revised from time to time, or such other

standards as approved by SYABAS.

b. Bulk Meter

A meter measuring water all or part of which is subsequently measured by one or

more sub-meters.

c. Consulting Engineer

A professional engineer who is registered with the Board of Engineers, Malaysia

and whose registration is still valid when making any submission.

d. Consumer

A person who is supplied with water from the pubic main or a person who is

otherwise liable for the payment of charges for the supply of water and includes an

occupier.

e. Licensed Plumber

A plumber who is registered with JKAS to implement water plumbing works.

f. Meter

Any appliance, equipment or device used for the purpose of measuring,

ascertaining, regulating or estimating the amount of water consumed, supplied or

used.

g. Meter stand

The position where a meter is installed.

h. Premises

Any building, land and any tent or structure.

i. Plumbing system

All pipes, tanks, valves and fittings from the public main to and within the premises

of the owner or occupier.

j. Sub-meter

Any meter which measures water which has already metered since leaving the

public main.

k. Water fittings

Pipes (other than the public mains), taps, cocks, valves, ferrules, meters, cisterns,

baths, water closets, water heaters, telemetering system and other apparatus or

appliance used in connection for the supply or use of water.

DRAFT FINAL



1.3 STANDARDS AND SPECIFICATIONS

All materials and water fittings used in the construction of any of the works described in

these guidelines shall comply with the requirements specified in the latest edition of any

applicable approved standard and the specification issued by SYABAS.

In case there is any discrepancy between the approved standard and specification of

SYABAS the latter should take precedence.

1.4 INTERPRETATION OF GUIDELINES

Every design proposal shall meet the underlying objectives of these guidelines of:-

• Reliability

• Ease of Maintenance

• Quality of Work

• Energy Efficient

In this guidelines, the term “shall” is used in reference to standardized design parameters

or requirements where departures from which are not normally permitted.

The term “should” is used in reference to suggested design parameters or requirements

and the consulting engineer is expected to exercise sound professional judgment in

deciding whether to depart from the suggested parameters. The consulting engineer would

be expected to justify such departures in terms of cost and improved engineering

performance.

DRAFT FINAL


2-1

SEPAKAT SETIA PERUNDING (SDN) BHD. (14142-M) Consulting Engineers

2.0 PLANNING FOR WATER SUPPLY

2.1 GENERAL

In the planning for the water supply for any development, the following factors shall be

considered:-

a. The requirement of SYABAS.

b. The estimated daily demand and the maximum flow rate.

c. The location of the available supply.

d. The quantity and pressure of the available supply.

e. The water storage capacity if required.

f. The pumping system if required.

g. No temporary water supply will be granted by SYABAS. SYABAS will only provide

water supply for construction purposes.

h. The planning and design of water supply systems shall seek to optimize available

energy/ water pressure.

2.2 DEVELOPMENT PROPOSALS

2.2.1 General

Development proposals shall comply with the following requirements:-

a. Proposals shall be prepared and submitted by the consulting engineers/ town

planners.

b. Types and numbers of development units and the total development area shall be

shown clearly.

c. Contour lines shall be shown clearly on the plan at 5 m intervals.

d. Key plan and location plan shall be shown on the layout plan.

e. Levels shall be based on Ordnance Datum Level (ODL).

f. Coordinates and bearings of boundary shall be stated.


a. The water reservoir and tank sites shall be placed at:-

i. The highest ground area in the proposed development.

ii. Level grounds and not on slopes.

iii. Rectangular site area.

b. Dedicated access (entrance/ exit) shall be provided to reservoir/ tank and pumping

station.

c. All slopes shall be constructed within the reservoir/ tank and pumping station

reserves for ease of maintenance. Fencing shall cover all slopes with sufficient

setback for drainage.

d. All land on which waterworks are built shall be surrendered to SYABAS, who will

then hand over to the State Government. The land shall include access road, main

infrastructure, slopes etc.

e. Should the water pressure from the connection point to the highest development

area be insufficient, one or more suction reservoir/ tank and pumping station sites

shall be provided whether inside or outside the proposed development area at the

expense of the developer. The pumping head shall not exceed 75 m for each

pumping stage.

f. The difference between the highest and lowest Finished Platform Level within the

development area shall not exceed 30 m. If it exceeds 30 m, the concept of low level

and high level service reservoirs/ tanks shall be considered.

g. The developer shall be responsible to carry out any landscaping works and

architectural design if required by the local authorities.

2.2.3 Site Dimensions for Reservoirs and Tanks

For any development, the minimum site dimensions for suction reservoir/ tank and

pumping station, service reservoir/ tank and the combination of the aforementioned are

shown in Table 2.1, Table 2.2 and Table 2.3 respectively.

DRAFT FINAL


2-2


Table 2.1 : Minimum site dimensions for suction reservoir/ tank and pumping station

Water Demand (l/d) Site Dimensions (Minimum)

≤ 45,000 20 m x 25 m

45,001 – 227,000 20 m x 25 m

227,001 – 454,000 25 m x 30 m

454,001 – 680,000 25 m x 30 m

680,001 – 900,000 30 m x 35 m

900,001 – 1,135,000 35 m x 40 m

1,135,001 – 2,270,000 30 m x 45 m

2,270,001 – 3,405,000 45 m x 55 m

3,405,001 – 6,810,000 60 m x 65 m

6,810,001 – 13,620,000 75 m x 80 m

> 13,620,000 To be approved by SYABAS but

subject to a minimum of 90 m x 95 m

Note: Dimensions in the above table are excluding the areas of office, storeroom,

toilet and quarter. Please refer Clause 3.4.3.a for details.

Table 2.2 : Minimum site dimensions for service reservoir/ tank

Site Dimensions (Minimum) Reservoir/ Tank

Capacity Ground Reservoir/ Tank Elevated Reservoir/ Tank

≤ 45,000 20 m x 20 m

45,001 – 227,000 20 m x 20 m

227,001 – 454,000 25 m x 25 m

454,001 – 680,000 30 m x 30 m

680,001 – 900,000 30 m x 30 m

900,001 – 1,135,000 35 m x 35 m

1,135,001 – 2,270,000 40 m x 40 m

2,270,001 – 3,405,000 45 m x 45 m

3,405,001 – 6,810,000 60 m x 60 m 50 m x 95 m

6,810,001 – 13,620,000 75 m x 75 m 55 m x 125 m

> 13,620,000 To be approved by

SYABAS but subject to a minimum of 90 m x 90 m

To be approved by SYABAS but subject to a minimum of 80 m x 130 m

Note: Dimensions in the above table are excluding the areas of office, storeroom, toilet

and quarter. Please refer Clause 3.4.3.a for details.

DRAFT FINAL


2-3


Table 2.3 : Minimum site dimensions for the combination of suction reservoir/ tank,

pumping station and service reservoir/ tank

Water Demand (l/d) Site Dimensions (Minimum)

≤ 45,000 25 m x 50 m

45,001 – 227,000 25 m x 60 m

227,001 – 454,000 30 m x 65 m

454,001 – 680,000 35 m x 70 m

680,001 – 900,000 35 m x 70 m

900,001 – 1,135,000 35 m x 75 m

1,135,001 – 2,270,000 40 m x 90 m

2,270,001 – 3,405,000 45 m x 100 m

3,405,001 – 6,810,000 50 m x 115 m

6,810,001 – 13,620,000 55 m x 145 m

> 13,620,000 To be approved by SYABAS but

subject to a minimum of 55 m x 260 m

Note: Dimensions in the above table are excluding the areas of office, storeroom,

toilet and quarter. Please refer Clause 3.4.3.a for details.

DRAFT FINAL



3.0 EXTERNAL WATER SUPPLY SYSTEM

3.1 APPLICATION FOR SOURCE OF WATER SUPPLY

a. The owner or developer shall apply to SYABAS through their consulting engineer together

with the following:-

i. Appointment letter to the consulting engineer from the owner or developer, and the

consulting engineer’s registration letter with the BEM.

ii. Calculation of water demand according to SYABAS requirements as shown in

Table 3.1.

iii. Approval letter and plans from the local authority.

iv. Three (3) sets of Key Plan and Location Plan.

v. Three (3) sets of Site Plan, with a minimum scale of 1:500 showing the

existing and proposed layout of reticulation mains, lot numbers, adjacent lot

nos., house numbers and landmarks.

vi. Three (3) sets of Layout Plan complete with contour lines and proposed land

development levels (in metre ODL).

vii. All plans/ drawings submitted shall be of A1 size.

b. Application with water demand of more than 50,000 litres per day shall be made directly to

the Development Department, SYABAS Headquarters.

c. Application with water demand of less than 50,000 litres per day shall be made directly to

the respective SYABAS District Office.

3.2 CONCEPT DESIGN SUBMISSIONS

a. For development with water demands exceeding 4.5 million litres per day and to be

developed in phases or where pumping station is required, the Concept Design Report for

the entire development shall be submitted to SYABAS.

b. Two (2) sets of Concept Design Report shall consist of the following:-

i. General description about the project.

ii. Water demand table according to the type of development for the entire project.

iii. Water demand computation table according to phase and type of development

including the years for each development phases.

iv. Supply zones for the development phases from service reservoirs/ tanks.

v. Hydraulic calculations for main pipes for peak flow condition from supply source to

storage reservoir/ tank, incoming main, size and level of suction reservoir/ tank,

pumping main, size and level of storage reservoir/ tank and residual pressure in the

pipes for the particular supply zone.

vi. General brief and schematic plan of the overall water supply system showing nodal

and pipe data. Flow and pressure readings for nodes and pipes shall be indicated.

c. All plans/ drawings submitted shall be of A1 size.

3.3 DETAILED DESIGN SUBMISSIONS

a. The detailed design shall be in accordance with the requirements of the development

phases.

b. A copy of SYABAS Standard Specifications shall be included.

c. Two (2) sets of Detailed Design Report shall be submitted by the consulting engineer.

d. Three (3) set of drawings of A1 size shall be submitted for approval.

e. The submission shall be accompanied with one (1) no. CD containing the soft copy of all

drawings relating to the water supply system, in AutoCAD format and the calculation

data. There shall cover the following:-

i. Reticulation system layout plan.

ii. Symbols used shall be those as shown in the SYABAS’ Standard Drawings

attached.

iii. Reservoir/ tank and pumping station layout plan.

iv. Details of reservoir/ tank and pumping station.

v. Plan and profile of incoming main pipe.

vi. Standard drawings.

vii. Hydraulic calculation data for reticulation system.

f. Drawings, calculations and works specifications shall be endorsed by a consulting

engineer appointed by the owner or developer.

DRAFT FINAL



3.3.1 Civil Works

Each design proposal shall consist of the following:-

a. Brief description for that particular phase.

b. Water demand table showing the types of development, calculations of reticulation pipe

design for the cases of peak flow, fire flow and average flow, calculations for levels and

size of reservoir/ tank and pumping system calculations.

c. Detailed calculations showing that the pipes are able to withstand the expected

design traffic load with a minimum of 1.0 m depth of cover, well compacted with

suitable backfill materials.

d. Calculation and sizing of scour pipe for the reservoir/ tank.

e. Storm drainage system design calculation.

f. Detailed layout plan showing the main reticulation pipe system, that are coloured

according to:-

i. Types and sizes of pipes.

ii. Location, type, size and BWL/ TWL for reservoir/ tank.

iii. Pumping station, including drainage.

g. Detailed layout plan of reservoir/ tank showing location, side views, top and sectional

views, details of levels, incoming water pipe, outgoing water pipe, overflow and scour

pipes, valves locations, level indicator, ventilation system and ladders for reservoirs/ tank

and security fencing.

h. Floor plan, side and sectional views of pumping station showing the pump locations,

arrangement of pumping system including suction pipe from suction reservoir/ tank to

pumps, pumping mains, pipe fittings, pipe trenches, motor, switchboard surge suppression

system and details of levels.

i. Detailed drawing showing the supports, foundation arrangements with base plate

dimensions and the positions of all foundation bolts and pipe connection, chequered plate

and all necessary information for the complete design.

j. Structural design including the design calculations and design criteria for pumping station

and reservoir/ tank endorsed by a consulting civil engineer.

k. The hydraulic calculations for reticulation system shall include the following information:-

Pipe Details

Pipe

No. From Node

To Node

Length

(m)

Dia.

(mm) HWC

HL

(m) HL/1000

Velocity

(m/s)

Node Details

Node

No.

Flow

(l/s)

Elev

(m.ODL)

HGL

(m.ODL)

HSL

(m.ODL) Residual

Pressure (m)

Where:-

HWC = Hazen William Coefficient

HL = Head Loss

HGL = Hydraulic Grade Line

HSL = Highest Supply Level

3.3.2 Mechanical and Electrical Works

The submission of detailed design and installation for mechanical and electrical works shall be as

per Clause 7.2 and 6.2 respectively. It shall be submitted to SYABAS within four (4) weeks from

the approval date of the detailed design of the civil works. The mechanical and electrical system

design considerations shall be as required in Chapters 6.0 and 7.0. The design and calculation

report shall be prepared and endorsed by consulting engineer. Approval from SYABAS shall be

obtained before any work may commence at site.

3.3.3 Geotechnical Works

Each design proposal shall consist of the following:-

a. Soil Investigation Report

b. Geotechnical Interpretation Report

c. Geotechnical Design Report which shall include the following:-

i. Subsoil conditions of the project site.

ii. Design soil parameters.

DRAFT FINAL



iii. Selection of foundation type.

iv. Design calculations for foundation of reservoir/ tank and pumping station

including calculations for long term settlement and short term settlement.

v. Detailed drawings for foundation of reservoir/ tank and pumping station.

d. When slopes are encountered adjacent to the reservoir/ tank or pumping station, the

followings shall be included in the Geotechnical Design Report:-

i. Detailed drawings for earthwork which shall show the cross sections of

critical slopes and cut/ fill sections within the reservoir/ tank or pumping

station reserve and including areas 100 m beyond the site boundary.

ii. Selection of slope surface protection and erosion control.

iii. Slope stability analysis except for slopes that fall under Clause 3.4.4.b.vii.

iv. Selection of slope stabilization method, if relevant, and detailed drawings and

design calculations of all slope stabilization measures.

e. Geotechnical design considerations as required in Clause 3.4.4.

3.4 DESIGN GUIDELINES

3.4.1 Water Pipes

a. Hydraulic Requirements

i. The reticulation system shall be designed as per the following flow

conditions:-

• Peak flow

• Combination of average and fire flow

• Summary of both flow conditions above

ii. Hazen-William Coefficient C shall be as per Table 3.2.

iii. Head loss gradient shall be less than 2/1000 during peak flow condition.

iv. Peak factor of average flow for incoming flow to reservoir and reticulation system

shall be 1.2 and 2.5 respectively.

v. The following residual pressures shall be achieved:-

• Each node shall have a minimum residual pressure not less than 7.5 m

above the highest supply level during peak flow condition. This is applicable

to development where the source of water is drawn directly from SYABAS

main.


above the highest supply level during peak flow condition. This is applicable

to development where the source of water is drawn from the developer’s

storage reservoir/ tank with the hydraulic calculations based on the BWL.


above the platform level, for combined average flow and fire flow condition.

• Each node shall have a maximum residual pressure not exceeding 30 m for

the two flow conditions analysed. Pressure Reducing Valve shall be

provided where the residual pressure exceeds 30 m.

vi. Fire flow requirement, location and type of hydrants shall be recommended by

BOMBA.

vii. Reticulation pipe size shall be subject to the hydraulic design for peak flow

requirements and for pipe system with hydrant, the pipe size shall be

determined by the hydraulic requirements and minimum pressure required

for fire fighting and average flow condition. For pipes with hydrant, a

minimum pipe size of 100 mm diameter shall be applied except the last 91 m

before pipe end. Hydrant shall be installed at least 91 m before any pipe end.

b. Pipe Laying Requirements

i. All pipes shall be laid at locations which are easy for maintenance works and

the cost of repair and rehabilitation works shall be considered.

ii. Twin pipes shall be installed on both sides of road shoulder should there be more

than ten (10) units of houses/ shops in a row for that particular road. The main

pipe shall be subject to the hydraulic and fire fighting requirements.

iii. The types of pipes used shall comply with Table 3.3 and 3.4.

iv. Pipe dead ends shall be installed with isolating valve or hydrant.

v. The pipes shall be buried in sufficient depth, well compacted with suitable

backfill materials and able to withstand the expected design traffic load

according to the standard pipe bedding details in the attached SYABAS

Standard Drawings.

vi. Under all circumstances, water pipes shall be laid above sewers with a

minimum vertical clearance of 1 m.

DRAFT FINAL



vii. Hydrant pipeline shall be installed separately from the domestic pipeline in any

area with apartment/ condominium, factory, complex, office, commercial complex,

institution and school, where the water demand does not exceed 2.0 million litres

per day except for low-cost flats built by the Government. Water meter shall

be provided for both of the hydrant and domestic pipelines.

c. Valves and Utilities

i. All valves shall comply with prevailing SYABAS requirements.

ii. All isolating/ regulating and scour valves shall be of flange ended sluice type for

pipe diameter up to 400 mm and of flange ended butterfly type for pipe diameter

450 mm and above. The in-line valves shall be installed at a maximum of

every 2000 m interval of incoming main.

iii. The size of isolating valve shall be at least the size of the pipeline. However

for pipe diameter of 900 mm and above, the isolating valve can be one size

smaller than the pipe size.

iv. Scour locations and sizes shall be designed such that the pipelines can be

scoured within three (3) hours.

v. Full bore scour point shall be provided not greater than 5 km apart at low

points near river/ big drain. A self cleansing velocity of greater than 0.6 m/s

shall be achieved.

vi. Scour valve sizes shall be as follows:-

• For pipe size 150 mm - 400 mm dia. - 100mm flange ended





• For pipe size 1300 mm dia. and above - 450mm flange ended

vii. Air valve sizes shall be as follows:-

• For pipe size 150 mm - 300 mm dia. - 50 mm double orifice type

• For pipe size 350 mm - 550 mm dia. - 80 mm double orifice type with

flange ended isolating valve

• For pipe size 600 mm - 800 mm dia. - 100 mm double orifice type

with double flanged isolating

valve

• For pipe size 850 mm - 1200mm dia. - 150 mm double orifice type with

flange ended isolating valve

• For pipe size 1300 mm dia. and above - 200 mm double orifice type

with flange ended isolating

valve

viii. Sampling box with pressure gauge shall be provided as per Table 3.5.

ix. Water usage for a NRW zone shall be limited to 1,000,000 litres per day.

x. District Meter Zone (DMZ) chamber shall be provided as per Table 3.6 within

each hydraulic zone.

xi. Constant flow valve shall be installed on the incoming pipe to the suction reservoir/

tank of condominium, apartment and office to limit the flow rate at 20 hours per day

whenever the residual head at the inlet of the reservoir/ tank exceed 15 m.

The developer shall submit the characteristic curve/ chart of the constant

flow valve to SYABAS for approval.


a. Storage Capacity

i. The storage capacity requirements for reservoirs/ tanks shall be as per Table 3.7

ii. The preferable volumetric ratio of suction reservoir/ tank : elevated storage

reservoir/ tank shall be 1:2. However, a proportion between 1:1 and 1:2 may be

considered.

b. Hydraulic Requirements

i. For hilly development, the concept of high, medium and low hydraulic zone shall be

adopted where viable.

ii. Design of reticulation system supplied from reservoir/ tank shall be based on the

reservoir’s BWL and the minimum residual pressure shall be 4.5 m above HSL.

iii. The following residual pressure requirements shall be satisfied:-

DRAFT FINAL



• Minimum residual pressure at reservoir/ tank’s TWL shall not be less than

4.5 m, where the connection source of incoming main has no connection to

any other reticulation main.

• Minimum residual pressure at reservoir/ tank’s TWL shall not be less than

7.5 m where the incoming main has direct connection to reticulation pipe.

• Maximum residual pressures above HSL at any case shall not exceed

15 m for gravity fed reservoirs/ tanks and 5 m for pumping fed

reservoirs/ tanks.

c. Boundary Setback

Setback from the edge of structural foundation shall be flat all-round with at least 6.0

m for ground reservoir/ tank and pumping station structures and 9.0 m for elevated

reservoir/ tank structure. Minimum distance between two (2) structures shall be 3.0 m.

d. Materials and Measures

i. Reinforced concrete reservoir is preferred and suction reservoir/ tank shall

be reinforced concrete. However, storage reservoir/ tank of other material

may be used, subject to the approval by SYABAS.

ii. Storage reservoir/ tank with a capacity of more than 454,000 litres shall be of

reinforced concrete.

iii. The usage of storage reservoir/ tank with a capacity of less than 454,000

litres built with other materials as approved by SYABAS are allowed until

year 2010. After year 2010, all the storage reservoir/ tank shall be of

reinforced concrete.

iv. Reinforced concrete elevated storage reservoir/ tank shall not exceed the capacity

of 4.5 million litres. Capacity of elevated storage reservoir/ tank of other materials

shall be subject to the approval of SYABAS.

v. The effective water depth for RC reservoir/ tank shall be not more than 5 m

for capacity of less than 4,540,000 litres and 7 m for capacity of 4,540,000

litres and above. The water depth for non RC reservoir/ tank shall not be

more than 5 m.

e. Pipeworks Inside Reservoirs and Tanks

i. All pipes in reservoir/ tank shall be of stainless steel, ductile iron painted with

suitable anti-corrosion paint system or other materials as approved by SYABAS.

ii. All vertical pipes shall be anchored and supported with stainless steel

brackets, steel bolt and nut bolted into the wall of the reservoir.

iii. Overflow pipes shall be at least one size larger than the inlet pipe diameter

and not smaller than the outlet pipe diameter.

iv. The scour pipe shall be designed to empty the full capacity of reservoir

within six (6) hours.

v. For gravity flow, the inlet pipe at the reservoir/ tank shall be of side or bottom

inlet while for pumping supply, the inlet pipe shall be of top-inlet (bellmouth).

The outlet pipe shall be of side or bottom outlet.

f. Control Valves

i. All incoming mains to the suction reservoir/ tank and gravity flow to the

service reservoir/ tank shall be controlled by a mechanical control valve

while the incoming pumping main shall be electrodes controlled.

ii. Inlet control valve shall be of ball float valve type for mains size up to 300 mm

diameter. An additional inspection manhole with a suitable size for

maintenance purposes shall be constructed directly on it. Inspection

manhole shall be fitted with safety railing and covered with stainless steel

chequered plate.

iii. For incoming main of size above 300 mm, a one way flow full bore altitude

valve complete with T-pot strainer and by-pass installed in one common

chamber shall be used. Butterfly valves shall be used for isolation and by-

pass purposes.

iv. The altitude valve shall be of diaphragm or piston type for sizes of less than

450 mm diameter and of piston type for sizes of 450 mm diameter and above.

v. The control valves shall be fitted with sluice valves/ butterfly valves for

isolation and maintenance purposes.

vi. All by-pass pipes shall be of the same size of the incoming pipe.

vii. All valve chambers shall be well drained or with dewatering system installed.

DRAFT FINAL



g. Pipe Strainers

i. All incoming mains to the suction reservoirs/ tanks and gravity flow to the

service reservoirs/ tanks shall be fitted with pipe strainers.

ii. A pipe strainer shall be fitted after the sluice valve and installed together in a

common valve chamber. The size of the valve chamber shall be constructed

to suit the fittings of the sluice valve and pipe strainer.

iii. The strainer shall be of 10 ~ 15 mesh stainless steel screen (net).

h. Miscellaneous

i. External stairs of reservoir/ tank shall be of reinforced concrete and shall be

fenced. All stairs shall have brickwall enclosure complete with mild steel doors.

Stairs inside the reservoir/ tank shall be of reinforced concrete or stainless steel

(SS304). All stairs shall be fixed with safety railing.

ii. Two (2) nos. or more ladders shall be provided for reservoir/ tank with a

capacity of more than 9.1 million litres.

iii. All reservoirs/ tanks shall be fitted with ‘Dial’ type level indicators. The size of

level indicator for ground reservoir/ tank and elevated reservoir/ tank shall

not be less than 600 mm diameter and 900 mm diameter respectively. Only

stainless steel cable (tangle-free design) shall be allowed.

iv. Perspex glass covers shall be provided on the roof of reservoir/ tank.

v. All valve chambers shall protrude above the ground level not more than 300

mm.

vi. Site drains and overflow drains shall be designed as per Table 3.8.

vii. Security fence for reservoir/ tank and pumping station area shall be built as

per SYABAS Standard Drawings attached, and the reserve’s boundary shall

be marked with boundary stones at 6 m interval.

viii. All level ground within the reservoir/ tank and pumping station compound

shall be premixed as per Table 3.9.

ix. Reservoirs/ tanks shall be painted as per SYABAS Specifications.

x. Top water level, bottom water level and capacity of the reservoir/ tank shall

be printed on the reservoir/ tank’s wall.


a. General

i. Platform levels of pumping stations and suction reservoirs/ tanks shall be

designed above 100 years ARI flood level.

ii. Pumping station shall be of reinforced concrete and bricks with reinforced concrete

roof or roof tiles. Roof tiles can only be used for pumping station where the

pumping capacity does not exceed 100 m3/hr. If roof truss is to be used, the truss

shall be of steel type.

iii. All pumping stations shall be equipped with toilet and sewerage system.

iv. Pumping station with pumping capacity exceeding 50 m3/hr shall have office/ store

room.

v. Pumping station with pumping capacity exceeding 10 Mld shall be equipped with

two (2) unit quarters with three (3) bedrooms. Floor area of each quarter shall

not be less than 65 m2.

vi. Security grilles shall be provided on the inside of the pumping station window.

vii. Heavy duty floor tiling shall be provided.

viii. Ceramic wall tiling shall be provided up to 1.5 m height.

ix. All windows shall be of steel-casement type.

x. All suction, discharge pipes and fittings shall conform to Table 3.3. All pipes

shall be laid in trenches and well anchored.

xi. The minimum width of trenches shall be the size of pipe laid plus 300 mm

space on each side of the pipe. All trenches shall be well drained and

covered with hot dipped galvanised grating or chequered plate. Trenches

built below the drain level shall be provided with pump sump complete with

isolator point and earth leakage relay or RCD.

xii. All exposed pipes and fittings shall be painted as per SYABAS requirements.

xiii. Main switchboard shall be compartmentalized and located away from water

pipes. Minimum clear distance between the main switchboard to the wall

shall be 1.5 m.

xiv. Minimum clear distance between two (2) pump sets shall not be less than 1.0

m.

xv. All pumping stations shall be provided with fire extinguishers, first aid kits

and safety procedures.

xvi. The pumping station shall be painted and marked as per SYABAS

Specifications.

DRAFT FINAL



b. Pump Plinths

i. Pumpset shall be rigidly fixed in position on its foundation and shall be free from

vibrations. The design of the foundation shall comply with the following criteria:-

• The pumpset foundation shall be sufficiently strong for its load.

• It shall be sufficiently strong and heavy for suppressing any vibrations.

ii. A good practice is to fix the pumpsets on concrete block, in reasonably good firm

ground. The following standard depths for pumps with various powers shall be

followed:-

• 7.5 - 15.0 kW - 200 mm to 250 mm

• 15.0 - 40.0 kW - 250 mm to 450 mm

• 40.0 - 55.0 kW - 450 mm to 600 mm

• 55.0 - 75.0 kW - 600 mm to 750 mm

• 75.0 - 100.0 kW - 750 mm to 1000 mm

iii. In practice, for pumps with powers above 75.0 kW, foundation plinths shall be

specially designed based on the following standards:-

• For electric motor driven pumps, the weight of an independent foundation

shall be at least three times more than the machine kerb weight of the

pumpset.

• When anti-vibration material such as rubber, spring etc; is used between

the common base plate for pump and the prime mover, and the foundation,

the weight of foundation can be reduce to half of the standard weight.

• Where any pipe of the pumping system passes through a building wall, pipe

bellow or anti-vibration material shall be employed to prevent the vibration

from transmitting to the building.

iv. Apart from depth, the size of foundation plinth shall have a minimum border of 100

mm to 150 mm all round while the top of the plinth shall be 100 mm to 150 mm

above the floor. The concrete mix for the plinths shall be Grade 25.

3.4.4 Geotechnical Considerations

a. Reservoir, Tank and Pumping Station Buffer Zones for Slopes

i. The setbacks or the distance from the toe or the crest of respective adjacent

slopes to the edge of reservoir/ tank and pumping station structures shall not

be less than 9 m.

ii. The distance between the crest of a slope and any water pipes, water

retaining structures, retention ponds, etc shall not be less 5 m.

iii. Berms shall be formed on slopes at every 5 m vertical interval. For rock cut in

sound and strong rock such as grade I or II granite (BS 5930:1999 - Code of

Practice for Site Investigations), the berm interval may be increased to 9 m.

The minimum berm width is 1.8 m.

iv. The reservoir/ tank and pumping station buffer zones for slopes are shown in

Figure 3.1.

b. Slope Stability Analysis

i. Except provided under Clause 3.4.4.b.vii below, all slopes whether on cut or

fill section shall be analysed for slope stability. In the analysis, groundwater

conditions and potential external loadings shall be considered.

ii. The required factors of safety (FS) for slope stability are 1.5, 1.2 and 1.1 for

normal groundwater conditions, 10-year return period rainfall and the worst

groundwater conditions respectively.

iii. For natural slopes or existing manmade slopes more than 10 years old, the

minimum values of the aforesaid FS may be reduced to 1.2, 1.1 and 1.0

respectively.

iv. For new and existing rock slopes, the above respective FS in clause ii and iii

shall be applied.

v. Geological mapping and interpretation shall be carried out to analyse the

stability of rock slopes.

vi. The modes of potential failures such as wedge, toppling and/ or plane

failures shall be identified and suitable rock supports shall be provided as

suggested in Table 3.10.

vii. Slope stabilization measures shall be required when the FS is not adequate

in order to achieve the FS required above.

DRAFT FINAL



viii. Slope stability analysis may not be required when:-

• Height of fill slope that does not exceed 10 m and slope gradient is

gentler than 1:2 (v:h) with 1.8 m berm at every 5 m vertical interval.

The fill is formed of well compacted suitable material having SPT N

(no. of blows) > 8.

• Height of cut slope that does not exceed 10 m and slope gradient is

gentler than 1:1.5 (v:h) with 1.8 m berm at every 5 m vertical interval.

The cut is in ideal soils of silty to sandy nature having SPT N > 8.

• Rock cut slope that does not exceed 10 m high and slope gradient is

gentler than 4:1 (v:h) in sound rocks such as Grade I or II granite, free

from loose or unstable blocks or fragments.

c. Drainage Provisions

i. All slopes shall be provided with subsoil drainage such as horizontal drains:-

• At the toe of the slope.

• Where the presence of water bodies (for example, water catchment

area, sewers, drains and water mains) is above the slope.

• Groundwater level is uncertain or likely to be higher than the design

value.

• Drainage of groundwater is hindered by slope surface protection

works such as shotcrete (sprayed concrete).

ii. Berm drains and interceptor drains shall be provided on the berms and at the

crest of the slope respectively. The drains shall be cast-in-situ and steel

reinforced. All drains shall be designed as per Table 3.8.

d. Slope Surface Protection

i. All slope surface shall be fully (closed) turfed or protected against erosion

upon completion of reservoir/ tank and pumping station construction. The

grass shall be hardy, have extensive and strong root system which is

effective for erosion control and perennial (long lasting) such as cow grass,

Vetiver grass (Vetiveria zizanionides) or other grass with equivalent

morphological, physiological and ecological characteristics.

ii. Good agricultural practices such as introduction of topsoil, correct planting

techniques and quality control shall be carried out for vegetation on the

slopes. New turf shall be watered in the dry season, turf shall not be placed

on very hard ground before introduction of topsoil and horizontal grooving

shall be formed before turfing.

iii. On difficult or unusual sites, which cannot support plant growth, such as

hard soil, acidic soil and steep slopes, suitable slope surface protection

method such as special treatment using geomat or guniting or other methods

approved by SYABAS shall be used.

iv. Rock supports effective to the mode of potential failures such as wedge,

toppling and/ or plane failures as identified in Table 3.8 shall be provided.

v. All loose rock fragments shall be scaled. Fractures rock zones susceptible to

erosion or rocks susceptible to deterioration shall be protected by a suitable

method such as shotcrete with proper drainage weepholes.

e. Reservoir, Tank and Pumping Station Foundation

All reservoirs/ tanks and pumping stations should preferably be founded on competent cut

ground otherwise deep foundation such as pile foundation shall be provided.

3.5 MATERIALS

a. All materials used for water supply system shall have the approval from SYABAS.

SYABAS reserves the right to inspect the materials to be used before installation.

Unapproved materials/ products including the works completed using the unapproved

materials shall be cleared from the site. Otherwise, the development will not be taken

over by SYABAS.

b. The types of incoming mains (without tapping) are as shown in Table 3.3.

c. The types of reticulation pipes are as shown in Table 3.4.

DRAFT FINAL



3.6 CHECKLIST

The checklist shall be completed and endorsed by a consulting engineer and shall be

attached together with the submission document. The design checklist of External Water

Supply System is shown in APPENDIX C.

Table 3.1 : Estimation of water consumption

Residential Daily Water Usage (l/d)

Low cost house and low cost flat

Medium low cost flat and medium cost house

Single and double storey terrace house

Apartment/ condominium

Single and double storey semi detached house

Single and double storey bungalow (Additional 450 litres per room if more than 4 bedrooms)

1,000

1,500

1,500

1,500

2,000

2,000

/unit

/unit

/unit

/unit

/unit

/unit

Commercial

2,000

1,500

1,000

50,000

10,000

450

1,500

1,500

1,500

1,000

/unit

/storey

/100m2

/unit

/unit

/stall

/stall

/stall

/room

/100m2

According to daily water usage (Note 1)

Single storey shop

Multiple storey shop house

Office

Petrol station – a) With car washing bay

b) Without car washing bay

Market – a) Dry stall

b) Wet stall

Hawker Centre

Hotel

Shopping complex

Industrial lots

Light industrial workshop

Terrace factory

Warehouse

1,500

5,000

1,500

/unit

/unit

/unit

Public and Social

Hospital

Mosque/ Surau

Community Hall

Club House

Balai Raya

Day school

Boarding school

Institution

Kindergarten

1,500

50

25,000

50,000

2,000

50

250

25,000

30

/bed

/person

/unit

/unit

/unit

/student

/student

/ha

/child

DRAFT FINAL



Note:-

1. The consulting engineer shall estimate and justify the water demand consumption,

otherwise 75,000 l/d for every hectare of land shall apply.

2. If the premises category/ usage is not stated in Table 3.1, further information shall be

obtained from SYABAS.

Table 3.2 : Hazen-William Coefficient C for various pipe materials

Table 3.3 : Materials for incoming main/ main pipe (without tapping)

Conditions Incoming Main Pipe Materials

Non-corrosive soil - Mild Steel (for diameter ≥ 700 mm) (note 1)

- Ductile Iron (note 3)

Corrosive soil/ coastal area

- HDPE - ABS

- GRP

- Ductile Iron with thicker zinc coating (note 3)

- Mild Steel (for diameter ≥ 700 mm) (note 1 & 2)

- Pumping main

- Gravity main in undulating area, sloping/ hilly area

- Mild Steel (for diameter ≥ 700 mm) (note 1)


Under roadways



- HDPE/ ABS/ GRP with RC pipe sleeve

Note :

1. Mild steel pipes with diameter of below 700 mm complete with full internal lining

protection acceptable to SYABAS and with CCTV confirmation may be

considered. Alternatively, flange jointed mild steel pipes are acceptable.

2. Mild steel pipes shall not be used for corrosive soil, however it can be

considered if protected with anodic/ cathodic protection.

3. Ductile iron pipes shall be push-in jointed complete with PE wrapping.

4. Ductile iron pipes shall be flange jointed or restraint tie bar jointed complete with

PE wrapping.

5. All plastic pipes shall be of PN 12 and above.

6. All pipeworks shall be as per SYABAS Specifications.

Type of Pipe Hazen-William Coefficient C

Ductile Iron (cement lined)

Steel (cement lined)

HDPE/ ABS/ GRP

100

100

120

DRAFT FINAL



Table 3.4 : Materials for reticulation pipes

Conditions Reticulation Pipe Materials

Corrosive soil, coastal area, ex-mining land, etc

- HDPE - ABS

- GRP

- Ductile Iron with thicker zinc coating

- Mild Steel (for diameter ≥ 700 mm) (note 1 & 2)

Fully industrial area, commercial, flats, condominium and shop houses

- Ductile Iron

Residential area and mixed developement

- HDPE

- ABS

- GRP

- Ductile Iron

Under roadways


- Ductile Iron

- HDPE/ ABS/ GRP with RC pipe sleeve

Note :

1. Mild steel pipes with diameter of below 700 mm complete with full internal lining

protection acceptable to SYABAS and with CCTV confirmation may be

considered. Alternatively, flange jointed mild steel pipes are acceptable.

2. Mild steel pipes shall not be used for corrosive soil, however it can be

considered if protected with anodic/ cathodic protection.



Table 3.5 : Sampling box

No. of Connections No. of Sampling Box

Below 200 Not required

201 – 1,000 1

1,001 and above Additional 1 no. of sampling

box for every 1,000 connections

Table 3.6 : DMZ chamber requirements for each hydraulic zone

No. of Connections No. of DMZ Chamber

Below 500 Not required

501 – 2,000 1

2,001 and above Additional 1 no. of DMZ chamber for every 2,000

connections

DRAFT FINAL



Table 3.7 : Storage capacity requirements for reservoirs/ tanks

Storage Requirement (day of total average daily water demand)

Conditions Reservoir (external)

Tank (within consumer premises)

RESIDENTIAL, SHOPHOUSES, OFFICES, GOVERNMENT BUILDINGS AND EDUCTIONAL BUILDINGS

Demand < 1 Mld Not Required 2

Low rise (5 storey and below) development with demand ≥ 1 Mld

1 1

High rise (6 storeys and above) development with demand ≥ 1 Mld

Not Required 2

Mixed development (low rise and high rise) with demand ≥ 1 Mld:-

a) High rise Not Required 2

b) Low rise with demand ≥ 1 Mld 1 1

c) Low rise with demand < 1 Mld Not Required 2

All developments within Putrajaya Already Provided 2

All developments within Cyberjaya 1 2

INDUSTRIAL AREA/ FACTORY, HOSPITAL, HOTELS, RESORTS AND COMMERCIAL COMPLEXES

a) Demand ≥ 1Mld 1 2

b) Demand < 1 Mld Not Required 3

MIXED DEVELOPMENT OF RESIDENTIAL, INDUSTRIAL AND COMMERCIAL

Combination of the above principles

Table 3.8 : Storm drainage system design requirements

Drain Type Design Flow

General site drainage 5 years ARI + check 100 years ARI

Overflow discharge drain to

approved discharge point

5 years ARI + check 100 years ARI

or

5 years ARI + Overflow

whichever is the greater

Table 3.9 : Premix road pavement structures

Thickness (mm) Pavement Structure

Trafficable Area Non-trafficable Area

Road Base (crusher run)

Binder Course

Wearing Course

250

60

40

150

60

40

DRAFT FINAL



Table 3.10 : Rock Slope Stabilization Measures

STABILIZATION MEASURES POTENTIAL

FAILURE TYPE Excavation Structural Support Drainage Rockfall Control

Name (with sketch)

Flatte

n Slope

Ben

ch

Loca

l exc

avation

Gun

ite fa

cing

Permea

ble (m

ason

ry) facing

Loca

l struc

tural "de

ntition

"

Buttres

s

Anc

hored wall

Strap

Dow

el

Bolt

Anc

hor

Drainag

e ditch

Scree

ded (pav

ed) su

rfac

e

Sho

rt drainho

les

Long

drainho

les/ adits

Mov

e structure/high

way

Roc

k trap

ditc

h

Roc

k trap

fenc

e/wall

Nettin

g

Sca

ling of lo

ose bloc

ks

Plane Failure

√ √ √ √ √ √ √ √ √ √ √ √

Wedge Failure

√ √ √ √ √ √ √ √ √ √

Toppling Failure

√ √ √ √ √ √ √

Rock or Debris Fall & General Degradation

√ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √ √

* Table 3.10 is extracted from “Geotechnical Manual for Slopes”, Geotechnical Engineering Office, Civil Engineering

Department, The Government of the Hong Kong Special Administrative Region, 2000.

Figure 3.1 : Typical reservoir/ water tank – slopes configuration

DRAFT FINAL



4.0 INTERNAL PLUMBING SYSTEM

4.1 PLANS

a. Consulting Engineers shall submit three (3) sets of finalized plans of A1 size including

one (1) no. CD containing the soft copy of the drawings in AutoCAD format to the

respective SYABAS District for approval. The plans required are as follows:-

i. Site plan.

ii. Building plans that are approved by local Authority.

iii. Floor plan and cross section including meter location, fittings location, valves,

pipeline route, etc.

iv. Detailed plan of cross sections showing tank and pump room locations.

v. Schematic diagram of pipework layout.

vi. A copy of approved letter for external water supply system and a copy of

approved letter for tapping point from SYABAS’ Headquarters for proposed

development with demand exceeding 50,000 litres per day.

b. For building of three (3) storeys and below without pumping system, two (2) sets of

calculations by design chart method shall be submitted by the architect, mechanical

engineer, civil engineer or hydraulic engineer.

c. For building with pumping system or development of four (4) storeys and above,

two (2) sets of hydraulic calculations shall be submitted and endorsed by

mechanical or civil engineer.

d. All plans for fire fighting system shall be referred to BOMBA.

e. Fire fighting pipes shall be of red colour and domestic pipes shall be of blue colour.

4.2 TECHNICAL REQUIREMENTS

4.2.1 General

a. All plumbers trained by SYABAS will be provided with an ID card that contains personal

details and photograph to ensure that only qualified plumbers are allowed to carry out

plumbing installation works.

b. Tapping works shall only be conducted by Licensed Plumber Type 2.

c. All pipe installation works within a building shall be carried out by a registered plumber.

d. Only pipes, valves, tanks and other installations that have been approved by SYABAS can

be used.

e. Pipe to kitchen sinks shall be drawn directly from the incoming pipe before it branches to a

tank (not applicable for developments with central storage).

f. All other tapping from the incoming pipe within the premise shall only be channelled

to the storage/ break tank to avoid contamination in the main pipeline.

g. Water piping system for domestic water supply, air conditioning and fire fighting system

shall be separated.

h. Automatic flushing is not allowed.

i. Manual flushing or flush valve shall be used for urinal.

j. Separate pipe from storage tank shall be provided for system adopting flush valve.

k. All saddle used shall have protective coating as per SYABAS requirement.

l. Saddles for High Density Polyethylene (HDPE) pipe shall be of electro-fusion tapping.

m. All bolts and nuts underground shall be of stainless steel.

4.2.2 Pipes and Valves

a. Nominal size, type and class of pipes shall be stated in the drawings.

b. Detailed information including catalogues of valves shall be submitted to SYABAS.

c. Minimum internal diameter for internal plumbing shall be 15 mm.

d. Usage of G.I. and uPVC pipes are not allowed.

e. Types of pipe allowed for cold-water system are shown in Table 4.1.

f. For dropper pipes with pressure exceeding 30 m head, pressure reducing valve or break

tank shall be used.

g. Connection for HDPE pipe shall be of electro-fusion and butt weld.

h. Control valves (ball or stop cock type), shall be installed on : -

i. All incoming pipes to suction tank and roof storage tank at 1.8 m above floor

level.

ii. All outgoing pipes from suction tank in an accessible position at maximum 1.8 m

above floor level.

iii. Pipes to each toilet compartment and pipes to fittings such as sink, basin, WC

and urinal.

DRAFT FINAL



4.2.3 Water Tanks within Consumer Premises

a. Capacity

i. Generally, the effective capacity of storage tank (actual volume of water that

can be drawn for usage) shall be as shown in Table 3.7 and Table 4.2.

ii. Factory with future expansion plan shall allocate sufficient space for ultimate

storage requirement.

iii. Top Water Level (TWL) for suction tank and roof storage tank shall be in Ordnance

Datum Level (ODL).

iv. For low cost house/ flat, water tub of minimum 120 litres shall be provided in the

bathroom.

v. Separate water tank for food court in building shall be provided.

b. Pipeworks and Materials

i. Water tank with capacity of less than 4,500 litres shall have overflow pipe which

shall also function as a warning pipe and shall be installed at a visible location.

ii. Water tank with capacity of 4,500 litres and above shall have separate overflow

and warning pipe and shall be installed at a visible location.

iii. Overflow pipe and scour pipe shall be one size larger than the incoming pipe and

not smaller than the outlet pipe.

iv. Scour pipe shall be installed underneath the tank and channelled to the nearest

floor trap, sump or drain at a visible location.

v. Sampling pipe shall be provided at the water storage tank for building which

provides water for food or beverage purposes.

vi. The types of tanks allowed to be used as water storage tanks in buildings are

subject to the approval by SYABAS. The following materials are approved:-

• Reinforced Concrete (RC)

• High Density Polyethylene (HDPE)

• Stainless Steel

• Glass Coated Steel

c. Safety and Security

i. The storage tank (including any tap fitted to the storage tank) and its

ancillary equipment shall be kept properly locked at all time.

ii. All roof storage tanks shall be easily to access with proper staircase within

the premises. Only spiral or walk up staircase shall be used and no cat ladder

shall be allowed.

iii. There shall be proper access for removal and replacement of the storage

tank without removing or damaging any part of the building.

iv. The storage tank shall be placed on flat RC slabs complete with proper

drainage system. Timber and angle iron shall not be used for the support.

v. The base of the storage tank shall be fully supported over its whole area by a

durable, rigid, flat and level platform sufficiently strong to withstand the

weight of the cistern without deflection when filled with water.

4.2.4 Pumping Systems

a. Total pumping head shall be as per design and not more than 75 m per stage. For

case where the pumping head is more than 75 m per stage, a break tank with a

capacity of 11.5 m3 shall be introduced.

b. Pumping system operation shall have automatic control by stainless steel electrodes

located within the suction tank and storage tank.

c. Selector switch shall be provided at the starter panel in order for the pump to be operated

manually.

d. Maximum pumping rate for on duty pump shall be adequate to fill the commercial or office

storage tank in eight (8) hours and residential storage tank in twelve (12) hours.

e. Suction tank shall be sized to be between 33% to 50% of daily water demand and roof

storage tank shall be sized to be between 50% to 67% of daily water demand.

f. For cases where the number of pumps on standby is 200%, roof storage tank may be

reduced to a size not less than 30% of daily water demand, and suction tank to have not

less than 70% of storage capacity.

g. For pumping design using pressurized system where the storage is 100% in ground floor

storage tank,

i. The number of pumps on standby shall be 200% of duty pumps.

ii. Pumping system shall be of variable speed drive type if applicable.

DRAFT FINAL



iii. A standby generator shall be provided.

h. Alarm system shall be provided to give signal when the water level in the storage tank is

lower than pump start level.

i. For buildings with rain water collection system, the size of water storage tank may be

reduced to 75% of daily water demand.

j. For building with multi-basement lower than external road level, pumps and suction

tanks shall not be located at the lowest level of the basement to avoid water

contamination and damaged to pumping equipment. For building with single

basement, pumps and suction tanks located at basement shall be provided with

proper drainage system to prevent flooding.

4.2.5 Hot Water Systems

a. Hot water piping system shall be separated and drawn directly from the storage tank.

Pumping system is only allowed after the water tank.

b. Control valve shall not be fixed at the heater outlet pipe for instant water heater.

c. Safety valve, whether using vent pipe or pressure relief valve, shall be drained to the

bathroom floor trap for storage type water heater.

d. Types of pipes allowed for hot-water system are subject to approval of SYABAS. The

types of pipes approved are stainless steel, copper and PP-R pipes.

4.2.6 Swimming Pools

a. Pool capacity, turnover time, rate of water cycle, rate of filtration and make-up water

volume, which consists of backwash water, water displacement, and evaporation

loss shall be mentioned in the drawing.

b. Detailed schematic drawing of swimming pool piping system shall be submitted to

SYABAS.

c. Technical details and catalogue for pump and filter shall be submitted to SYABAS.

d. Swimming pool shall be designed in order to be filled within one (1) day to three (3) days.

4.3 WATER CONSERVATION

4.3.1 General

Water shall be used efficiently and effectively at all times. Consumers are encouraged to

adopt water conservation measures in all non-domestic and domestic premises and

construction sites to conserve water.

4.3.2 Water Conservation Measures

a. Use of Water Saving Devices

i. Residential premises

Install constant flow regulators at wash basin taps, wash basin mixers,

shower taps and shower mixers.

ii. Toilets and washrooms in all premises

Use low capacity dual flushing cisterns with capacity not exceeding 6 litres in

all new premises and existing premises undergoing renovation.

iii. Toilets and washrooms in non-residential premises

• Install self-closing delayed-action taps at all wash basins and shower

points.

• Install constant flow regulators at all wash basin mixers and shower

mixers.

iv. Kitchens and cooking areas in non-residential areas

Install constant flow regulators at all sink taps and mixers.

v. Canteens

Install self-closing delayed-action taps at all wash basins and wash troughs.

vi. Laboratories

Install constant flow regulators at all wash basins and sink taps except for

safety reasons.

DRAFT FINAL



vii. Factories

Adopt the following measures in factories where possible and applicable:-

• Setting up of water recovery system for boilers to recover condensate

water as make-up water.

• Setting up water recycling system to reclaim water for reuse in the

production process and other non-potable purposes.

• Use of non-water cooled systems such as for cooling purposes.

b. Rainwater Harvesting System

Implement rainwater harvesting system which involves the collection, storage and

distribution of rainwater from the roof of a premises.

4.4 CHECKLIST

The checklist shall be completed and endorsed by consulting engineer and shall be

attached together with the submission document. The design checklist of Internal

Plumbing System is shown in APPENDIX C.

Table 4.1: Internal Pipe Materials

Type of Pipe D < 100 mm dia. D = 100 mm dia.– 150 mm dia.

Communication

Pipe

Stainless Steel/ HDPE (for

selected suppliers only)(Note 5)/

Polysteel

Flanged Mild Steel/ Ductile

Iron

Service Pipe

Stainless Steel/ ABS/ PP-R/

Copper/ Polybutelene/ Polysteel/

POB/ GRP

Flanged Mild Steel/ ABS/

Ductile Iron/ HDPE

Pumped Riser

Pipe Stainless Steel/ Copper/ Polysteel

Flanged Mild Steel/ Ductile

Iron (Note 2)

Distribution

Pipe

Stainless Steel/ ABS/ PP-R/

Copper / Polysteel/ POB/ GRP

Flanged Mild Steel/ ABS/

Ductile Iron/ HDPE

Note:-

1. Polysteel pipe shall subject to the quality of work inspections by pipe manufacturer.

2. Ductile iron pipe for pumped riser shall be flange ended or push-in jointed complete

with restraint tie bars.



5. The usage of HDPE pipe as communication pipe shall be those approved by

SYABAS.

DRAFT FINAL



Table 4.2: Internal storage tank (within consumer premises) effective capacity according to types of premise or usage

Item Type of Premises

Effective Capacity

(equivalent to 1-day average demand)

litres

1 Low cost house or low cost flat 1,000 /unit

2 Medium cost flat and medium cost house 1,000 /unit

3 Single or double storey terrace house, apartment and condominium

1,500 /unit

4 Single or double storey semi-detached house and bungalow (Additional 450 litres per room if more than 4 bedrooms)

2,000 /unit

5 Single storey shop house 2,000 /unit

6 Multiple storey shop house 1,500 /floor

7 Office 1,000 /100m2

8 Shopping Complex 1,000 /100m2

9 Hotel 1,500 /room

10 Hospital 1,500 /bed

11 Day School 50 /student

12 Boarding School 250 /student

13 Kindergarten 30 /child

14 Institution 25,000 /hectare

15 Mosque/ Surau 50 /person

16 Market - Dry Stall 450 /unit

17 Market - Wet Stall 1,500 /unit

18 Hawker Centre 1,500 /unit

19 Community Hall 25,000 /unit

20 Balai Raya 2,000 /unit

21 Club House 50,000 /unit

22 Petrol Station (without car washing bay) 10,000 /unit

23 Petrol Station (with car washing bay) 50,000 /unit

24 Light industrial workshop 1,500 /unit

25 Terrace factory 5,000 /unit

26 Warehouse 1,500 /unit

27 Industrial Area According to daily

water usage

* Mutiply accordingly for any additional water storage as required under Table 3.7.

DRAFT FINAL



5.0 METERING

5.1 GENERAL

a. In general, water supply for different premises and for different uses shall be

metered. The need to have a meter and its location shall be determined by SYABAS.

b. All supplies to fire hydrants and other fire fighting devices installed in a consumer’s

premises or within its compound shall be metered.

c. For multi-unit premises, water is supplied through bulk meters which measure the

total volume of water measured by sub-meters fixed at the individual units. The

registered consumer for the bulk meter shall be responsible to pay for the water

charges based on the difference between the registered consumption of the bulk

meter and all the sub-meters, including leakages.

d. Water meter locations as approved by SYABAS will be supplied and maintained by

SYABAS and will remain the property of SYABAS.

e. The consumer shall be solely responsible for the safe custody of the meter.

f. Individual metering shall be carried out at multi-unit residential premises and

subject to SYABAS approval. However, the Developer/ Management Corporation

shall sign an agreement with SYABAS to ensure that the Developer/ Management

Corporation will operate and maintain the water supply systems after the bulk meter

and to pay the bill difference between the bulk meter amount and the sum of the

individual meters amount.

5.2 LOCATIONS OF METERS

a. The location of a meter shall be determined by SYABAS.

b. The meter shall be installed in such a position that it should be unobstructive and

can be easily accessible for meter installation, meter reading and maintenance.

c. For multi-storey premises, meters shall be installed on the ground floor and arranged

according to levels in ascending order and marked with address plates.

d. For residential premises, all individual meters shall be installed in front but outside the

fencing of premises.

e. All bulk meters for apartment, flat, factory, condominium and school shall be placed within

the fenced compound area and near the guardhouse or entrance gate.

f. Meters shall be centrally placed at each floor or in front of the units and at locations

which are easy to access and read (eye level with sufficient lighting) and to

disconnect. A meter should preferably be installed in a box recessed into the wall

and shall not be at the corridor that will affects human traffic flow. Site verification

with SYABAS is necessary before meter stand installation.

g. For meters laced in shaft or boxed in chambers, sufficient natural light must be

available for ease of reading. Alternatively, electrical lighting shall be provided.

5.3 SIZES OF METERS

The size of mechanical water meter for each premises shall be determined based on the

water flow rates and water usage as shown in Table 5.1. Table 5.2 shows the size details of

electro-magnetic water meter.

5.4 AUTOMATIC METER READING SYSTEM (AMR)

The use of AMR is encouraged as it provides enhanced security, privacy, accuracy and

timeliness in meter reading. This is particularly useful in the following area:-

• High rise condominium and flats.

• Gated community.

• High security areas such as prison, police complexes.

For developer who opts for AMR shall pay for the installation of the AMR system including

the AMR meter. The proposed AMR system shall be approved by SYABAS prior to

installation.

5.5 METER STANDS

5.5.1 General

a. This section covers information on the dimensions and various material

requirements for water meter stands connected to public mains.

b. Material for meter stand shall be of stainless steel or polysteel.

c. For each individual meter stands for multi-unit residential premises, the meter shall

be arranged in correct order and marked with paint as per SYABAS requirements.

DRAFT FINAL



d. Mechanical meters with upward water flow direction are allowed to be placed

vertically. Such meters shall be installed at 1.2 m to 1.5 m above ground.

e. The maximum number of horizontal meters that can be stacked one over the other

shall be eight (8) numbers only.

f. Minimum size of meter shall be 20 mm diameter.

g. Gap between centerline at meter stand shall be not less than 150 mm.

h. Stop valves shall be placed before and after the meters.

i. Integrated lockable valve such as Ballo Fix is optional.

j. Meter stands for single and multi meters (up to 5 water meters) are shown in

attached SYABAS’ Standard Drawings.

k. Meter stands should comprise the following components:-

i. Stainless steel/ polysteel pipe.

ii. Outgoing pipes of 20 mm ID.

iii. Incoming pipes of 20 mm ID for one-meter stands.

iv. Incoming pipes of 25 mm ID for two-meter stands.

v. Incoming pipes of 50 mm ID for three to five meter stands.

vi. Brass gate valve or ball valve (full bore) for two to five meter stands

(optional).

vii. Non-return valves at sub-meters and individual meters for high rise building.

viii. Brass or stainless steel fittings (e.g. nipple, coupling, elbow, jam nut, tee etc).

ix. Submains, communication pipes and associated fittings.

x. Saddle and ferrule for tapping from public main.

xi. Concrete slab (600 mm x 600 mm x 50 mm thick) for all meter stand.

l. Other jointing combinations for single and multi meter stands are shown in attached

SYABAS’ Standard Drawings.

5.5.2 Markings for Meter stands

No marking for meter stand is required for single and two meter stands. For three or more

meter stands, identification markings of the unit numbers shall be written with paint on

both side of the meter stand itself as per SYABAS requirements.

Table 5.1 : Size of mechanical water meter

Minimum Flow

(m3/hr) Meter Size

Maximum Flow

(m3/hr) Class B Class C

Nominal Flow

(m3/hr)

Range of Monthly Consumption

(m3/month)

15 mm 3 - 0.015 0.0226 – 2.8 8 – 2,160

20 mm 5 - 0.025 0.0376 – 4.8 13 – 3,600

25 mm 7 - 0.035 0.0526 – 6.8 18 – 5,040

40mm 20 - 0.1 0.14 – 19.8 54 – 14,400

50mm 30 0.45 - 3.1 – 29.8 1,080 – 21,600

80 mm 80 1.2 - 8.1 – 79.8 2,880 – 57,600

100 mm 120 1.8 - 12.1 – 119.8 4,320 – 86,400

150 mm 300 4.5 - 30.1 – 299.8 10,800 – 216,000

200 mm 500 7.5 - 50.1 – 499.8 18,000 – 360,000

Note:-

1. The size of meter given in the above table is the size of mechanical meter.

2. SYABAS may change the meter size should other meter type be used.

Table 5.2 : Size of electro-magnetic water meter

Meter Size Maximum Flow

(m3/hr)

Nominal Flow

(m3/hr)

Range of Monthly Consumption

(m3/month)

100 mm 282 8.7 3,130 - 203,000

150 mm 600 20 7,200 - 432,000

200 mm 1,100 35 12,600 - 792,000

DRAFT FINAL



6.0 ELECTRICAL SYSTEM

The electrical design criteria for a typical pumping station should comprise fourteen (14) main

areas namely:-

a. Standards, code of practice, rules and regulations

b. Power supply requirements

c. HT installation

d. LV installation

e. Essential power supply

f. Motor starter panel (Motor control centre)

g. Electrical motor

h. Internal lighting and power

i. Compound lighting

j. Lightning protection system

k. Earthing system

l. Electrical spare parts

m. Electrical as-built drawings

n. Testing and commissioning

6.1 STANDARDS, CODE OF PRACTICE, RULES AND REGULATIONS

a. All design, works performed, materials and equipment installed shall conform to the

standards, regulations and by-laws of the authorities having jurisdiction over the

electrical system installation. These include : -

i. Department of Environment (DOE)

ii. Department of Civil Aviation (DCA)

iii. Department of Occupational Safety and Health (DOSH)

iv. Local Government (Majlis)

v. Energy Commission [Suruhanjaya Tenaga (ST)]

vi. Tenaga Nasional Berhad (TNB)

vii. Telekom Malaysia Berhad (TM)

viii. Jabatan Bomba Dan Penyelamat (BOMBA)

ix. All other relevant authorities having jurisdiction in the area concerned

b. The following standards shall generally be applicable to the design of the electrical

systems:-

i. Malaysian Standards (MS) if available.

ii. Other International Standards such as IEC, IES, IEEE, where applicable.

iii. Wiring Regulations for Electrical Installation, latest edition approved by ST.

iv. Malaysia Standards Codes of Practice.

Where there is a discrepancy in the standards or requirements between two

documents or between a document and the specific requirements of the local

authorities having jurisdiction, the more stringent standard or requirement shall be

adopted.


a. The consulting engineer shall submit the following during the detailed design stage

for approval:-

i. Approval Letter from SYABAS’ Development Department.

ii. Catalogues for switchgears, relays and meter panels.

iii. Control circuit diagrams for pumping system.

iv. Catalogues for Telemetry and Instrumentation Equipment.

v. All electrical conceptual drawings including single line diagrams and layout

drawings as per items listed in Clause 6.0.b. to 6.0.k.

vi. Three (3) sets of SCADA/ Telemetry System drawings as per items listed in

Chapter 8.0 - SCADA/ Telemetry System.

b. All electrical drawings shall be of A1 size.

c. The submission requirements shall as per Clause 3.3.

6.3 POWER SUPPLY REQUIREMENTS

a. The owner or developer shall apply to TENAGA NASIONAL BERHAD (TNB) through

their consulting engineer for power supply to the reservoir/ tank and pumping

station.

b. The consulting engineer shall liaise with TNB to confirm and obtain approval on the

numbers, area of land required and locations of the TNB substations if required.

DRAFT FINAL



c. For load more than 400 A (415 V supply), a 11 kV substation shall be provided and

subject to TNB’s approval. The consulting engineer shall apply on behalf of

SYABAS for the best electrical tariff for SYABAS application.

6.4 HT INSTALLATIONS

a. The 11 kV switchgear shall incorporate the Power Transformers (PT) and metering

Current Transformers (CT) for TNB metering.

b. The 11 kV switchgear shall be of vacuum type. The transformer shall be of copper

winding and cast resin type for greater safety against fire hazard and lower

maintenance requirement.

c. A separate TNB metering compartment shall be provided in the HT switch room.

d. All HT motor design shall be subject to SYABAS approval.

6.5 LV INSTALLATIONS

a. The LV switchboard shall consist of two types:-

i. Main incoming running load of 60 A and above

- Floor standing cubicle type

ii. Main incoming running load of less than 60 A

- Either floor standing or wall mounted type

iii. Other LV switchboards running load of 60 A and above

- Floor standing cubicle type

iv. Other LV switchboards running load of less than 60 A

- Wall mounted type

b. For Main Incoming of 250 A and above

Air Circuit Breaker (ACB) coupled with one (1) element earth fault IDMT relay and three (3)

elements over current IDMT relay complete with all current transformers for protection

shall be provided. IDMT shall be of electro-mechanical type. Surge Protection device

complying with Zone 1 Protection as defined in IEC 61643-12 shall be provided.

c. For Main Incoming of Supply of less than 250 A

MCCB in series with main Fuse Switch coupled with one (1) element earth fault IDMT relay

and three (3) elements over current IDMT relay complete with all current transformers for

protection shall be provided. IDMT shall be of electro-mechanical type. Surge Protection

device complying with Zone 1 Protection as defined in IEC 61643-12 shall be

provided.

d. For Main Incoming of less than 60 A only

A 60A Fuse Switch and MCCB complete with shut trip coil in series with a Zero CT

and Earth Leakage Relay (ELR) complete with over current used at the incomer side

shall be provided. Electric Surge Protection device complying with Zone 1

Protection as defined in IEC 61643-12 shall be provided.

e. Outgoing Breakers at Main Switchboard

All outgoing breakers from the main switchboard to other parts of the electrical system

(such as distribution board and motor starter panel) shall be MCCB complete with shut

trip coil of appropriate rating. The rating of MCCB shall be 25% higher than the full

load current.

f. For CT metering scheme, central automatic power factor correction panel with step

correction shall be provided at the main switchboard to maintain power factor of

above 0.90 in compliance with the TNB regulations. For small installations, fixed

type of capacitors shall be installed at each individual starter panel.

g. Automatic harmonic current suppressors capacitors and blocking reactors of

appropriate rating shall be installed in the main switchboards where harmonic

generating equipment such as Variable Speed Drives (VSD) is installed.

h. Cable from main switchboard to distribution boards and motor starter panel shall be

of XLPE insulated copper cable. For distribution of load, XLPE or PVC insulated

copper cables shall be used. XLPE insulated armoured copper cable shall be used

for underground installations.

i. Dedicated cable to fire protection equipment if the cable route passes through

different fire zones shall be of fire resistance type approved by BOMBA.

j. All sub-circuit and final-circuit wiring shall be in high impact uPVC conduits when

concealed in false ceiling or walls and in galvanised iron (G.I.) conduits when

exposed or supplied to fire protection devices.

k. All cable trunkings, trays, ladders shall be hot-dipped galvanised. Identification

shall be provided for electrical trunkings and cable trays.

DRAFT FINAL



l. The number of cabling installed in trunking/ trays/ conduits/ ladders shall be such

that a space factor of 45% is not exceeded after making a provision of 25% for

installation of future cables.

m. The material and construction of the switchboards and distribution boards (DB)

shall be as follows: -

i. Main Switchboard

Electro-galvanised or galvanised iron (G.I.) sheet with minimum ingress

protection of IP42, Form 4 segregation requirement, panel thickness shall be

of at least 2 mm, beige in colour and paint thickness of at least 75 micron on

average.

ii. Sub-switchboard


protection of IP42, panel thickness shall be of at least 2 mm, beige in colour

and paint thickness of at least 75 micron on average.

iii. Distribution Board


protection of IP42, panel thickness shall be of at least 1.5 mm, beige in colour

and paint thickness of at least 75 micron on average.

6.6 ESSENTIAL POWER SUPPLY

a. Essential power supply systems in the form of diesel standby generator set shall be

provided for pumping station serving the demand capacity of more than 1.5 Mld.

b. The essential power supply system shall be in compliance with Local Government

(Majlis) and Department of Environment’s requirement on limiting noise level.

c. Upon TNB power failure, the standby generator shall run up to full speed and the

changeover of power to the generator set will be delayed until 9 seconds to allow

the TNB automatic changeover to alternative power source to complete. If TNB

power supply restoration is detected within this 9 seconds window, the changeover

to generator supply will be blocked. The generator set will continue to run for 10

minutes. If TNB power supply is found to be stable, the standby generator will be

stopped.

d. The fuel tank shall have capacity to enable generator sets to continuously run for at

least 24 hours at full load.

e. The sizing of standby generator shall take into consideration of all duty pumps

running (N-1) and the starting of the last duty pump. (For example; Sizing criteria for

3 duty pumps: 2 duty pump running + 1 duty pump starting)

6.7 MOTOR STARTER PANELS

a. All motor starter panels shall be of the floor standing cubicle type except for motor having

loads of less than 60 A, which can be floor standing or wall mounted type.

b. The motor starter shall either be together with main electrical switchboard or it shall be

stand alone on its own with sub-main cables being fed from the main switchboard through

circuit protective devices to its starter panel complete with earth fault relay and over

current relay IDMT.

c. The starter panel shall have the following features:-

i. ACB/ MCCB or combination or Isolator and Fuse Link shall be provided for main

incoming supply to its starter panel.

ii. All ACB/ MCCB shall be 50 kA for all incomer, starter panel and instrument

panel.

iii. The contactors rating shall be 25% more than the full load motor rating.

iv. For DOL starter contactor rating shall be 100% more than the full load motor

rating.

v. MCB shall be provided for its individual control circuit.

vi. Motor heater circuit shall be complete with motor heater switch and indicator light.

vii. Panel heater circuit shall be complete with MCB, heater switch, thermostat control

and indicator light.

viii. Motor Protection Relay

• 0 kW - 18 kW – Thermal Overload Relay

• Above 18 kW - 93 kW – Electronic microprocessor type of

motor protection relay

• Above 93 kW – Electro-mechanical type of motor

protection relay

ix. All motor starters shall be provided with phasing relay complete with miniature

circuit breaker (MCB).

DRAFT FINAL



x. The entire autotransformer and rotor resistance bank complete with

thermistors shall be installed at the top compartment of the switchboard and

within the same vertical module of switchboard housing the motor circuit.

xi. The main earth chamber shall be painted in red colour and proposed brand

used shall be subject to SYABAS approval.

xii. The motor can be operated via local manual control mode, automatic control or

remote control mode via SCADA/ Telemetry system.

xiii. The automatic operation shall be controlled by the level of water in the suction and

elevated service reservoir/ tank, floatless relay and control relays at the motor

control centre and 3-CORE (copper) PVC/ SWA/ PVC under ground cable from the

pumping station to the service reservoir/ tank inclusive of cable marker and cable

joint pillar following the cable route along the pumping mains. If the elevated

service reservoir/ tank is located outside the compound from pumping

stations, a controller coupled with GSM/ GPRS (SMS) system equivalent to

SYABAS standards shall be provided. This shall be an independent system

from the current telemetry system.

xiv. Cable for automatic operation shall be of 2.5 mm2 or above and insulation

shall be above 10M ohm.

xv. All electrode sets shall be of 13 mm diameter and stainless steel make.

xvi. The starter shall have a protection timer incorporated in the starting sequence.

xvii. The control circuit shall be prepared by the electrical consulting engineer.

xviii. All indicator lights shall be of LED type.

xix. Power factor shall be corrected to not less than 0.90 lagging.

xx. All capacitor bank shall be rated at 525 V and each of the capacitor shall be

protected by fast reacting reactors.

xxi. All outgoing cables to motor shall be armoured type and shall be laid in

trench or concealed in G.I. conduits on floor slab.

6.8 ELECTRIC MOTORS

a. All motors shall be of the induction type as specified below:-

i. All motors shall use High Efficiency Motor (EFF1 CEMEP-EU standard), Class

1.

ii. Motor up to 10 horsepower/ 7.5 kW shall be of squirrel cage motor with

direct-on line starter.

iii. Motor of more than 10 horsepower/ 7.5 kW and less than 150 horse power/ 110

kW shall be squirrel cage motor with autotransformer starter.

iv. Motor of 150 horse power/ 110 kilowatt and above shall be squirrel cage motor

with variable speed drives (VSD) or slip rings motor with rotor resistance starter.

b. In any case, the operation/ starting of a motor shall not have any undesirable effect to

other electrical power consumers.

6.9 INTERNAL LIGHTING AND POWER

a. General lighting and power inside the pumping station shall be fed from a distribution

board having a current operated Residual Current Device (RCD) and main switch. The

Residual Current Device (RCD) shall be separated for lighting and power (switch

socket outlet). The sensitivity of the RCD shall comply with the latest Suruhanjaya

Tenaga’s requirements on various applications.

b. The proposed lighting fitting and illumination level for the common area are given in

Table 6.1.

c. Control of lighting for the different areas shall be achieved by the following methods

depending on areas and usage:-

i. Partitioned areas - Individual switch

ii. Open areas - Switch centre

d. Lighting circuits shall be arranged in alternating circuits.

e. The proposed types of light fittings for the different areas are as per Table 6.2.

f. Maintained exit lights (“KELUAR” SIGN) and self-contained emergency lights of

fluorescent type with minimum three hours of battery (rechargeable) reserve shall

be provided for all areas in accordance with the BOMBA requirements and UBBL.

g. “KELUAR” sign complete with arrow sign showing the exit direction shall be

provided where appropriate.

h. Sufficient power points of suitable types and ratings shall be provided to serve the

intended usage of the areas or rooms and for all equipment and plants to be

installed including power points for all mechanical equipment’s requirements.

i. Each equipment shall have its own power point and two (2) equipment shall not

share the same power point. Additional 13A switch socket outlets shall be provided

for general use in all areas.

DRAFT FINAL



6.10 EXTERNAL LIGHTING INSTALLATIONS

a. External compound/ street lighting shall be provided for the compound and internal

roads within the compound of the works. The compound/ street lighting shall be

mounted on 5 m high concrete poles. Wall mounted light fittings shall be used

where pole mounted light fittings are not suitable. Generally, the spacing between

the poles shall not exceed three times the mounting height of the pole. The lamps

for the light fittings shall be of SON/ energy saving type or equivalent. The

illumination level on the ground/ road surface shall not be less than 15 lux

requirement.

b. Area floodlighting shall be provided where necessary and SON type of floodlighting

shall be provided with the average of 30 lux requirement.

c. Suitable path lighting with SL or PL lamps shall be provided in the walk paths.

d. All linkways and covered walkways shall be illuminated using tamper proof

luminaries with the average of 30 lux requirement.

e. Control of these various lighting systems shall be by local relays, time switches and

photocells complete with contactors. Override facilities shall also be provided.

6.11 LIGHTNING AND SURGE PROTECTION SYSTEMS

a. Lightning protection system shall be provided for pumping stations, service reservoir/ tank

and suction reservoir/ tank.

b. Lightning protection system for the building shall be Faraday cage type to MS-IEC

61024-1 requirements. Other lightning protection system shall be subject to

SYABAS approval.

c. For metal roofing, the metal structure shall be exothermically bonded with copper

tape or bare stranded G.I. cable, otherwise roof conductors shall be installed.

d. The system shall comprise down conductors, non-radioactive air terminals, fixing,

bonding, jointing, test clamps, earth clamps, earth electrodes, concrete and precast

earth chambers, etc.

e. All exposed metallic protrusions on building shall be connected to the lightning

protection system.

f. Earth resistance value for lightning protection system shall not exceed 5 ohms.

g. Lightning surge protection devices shall be provided for all power and data lines to

ensure all equipment inside computer rooms, network equipment rooms and

SCADA/ telemetry systems are protected against lightning surges complying with

Zone 1 Protection as defined in IEC 61643-12.

h. All down conductors shall be concealed within building structures.

6.12 EARTHING SYSTEMS

a. Earthing system shall comprise several sets of earth electrodes, earth clamps,

couplings, copper tape or bare stranded G.I. cable and concrete and precast earth

chambers. More elaborate measures shall be proposed if earth resistance value

could not be achieved.

b. An equipotential earthing system shall be provided to prevent dangerous voltage

rise between different earthing systems. This involves tying together the various

earthing systems for electrical, lightning protection, telecommunication and the

building structure. All service metallic pipes and exposed metallic protrusions on

the building shall be earthed together.

c. Earth resistance for electrical earth, electronic and telecommunication (clean) earth

shall be of 1 ohm or less (separately measured for each system before

interconnection).

d. Earth resistance value for lightning protection system shall not exceed 5 ohms.

6.13 ELECTRICAL SPARE PARTS

a. Developers/ Contractors are required to provide the following electrical tools and spare

parts:-

i. One (1) set of tools complete with box spanner.

ii. One (1) no. of digital insulation tester complete with test cable, LED

numerical display and keypad.

iii. One (1) no. of power analyzer complete with test cable, LED numerical

display and keypad with reading for voltage (V), amperes (A), frequency (Hz),

power factor, capacitance, resistance, inductance, power (W) and VARs.

iv. One (1) no. of digital clamp meter complete with test cable, LED numerical

display and keypad.

v. One (1) no. of digital leakage clamp meter complete with test cable, LED


DRAFT FINAL



vi. One (1) no. of digital earth tester complete with test cable, earth rod, LED


vii. One (1) no. of digital vibration meter complete with test cable, LED numerical

display and keypad.

viii. One (1) no. of digital tachometer complete with test cable, LED numerical

display and keypad.

ix. One (1) no. of auto system controller with GSM module (for pumping station

using GSM based controller only).

All proposed brands for spare parts shall be subject to SYABAS approval.

b. For HT installations, the following electrical spare parts shall be provided:-

i. One (1) no. of Vacuum Circuit Breaker (VCB) of the highest rating in the

installation.

ii. One (1) no. of Air Circuit Breaker (ACB) of the highest rating in the

installation.

iii. One (1) set of contactors for all steps.

iv. One (1) HRC fuse of the highest rating in the installation.

6.14 ELECTRICAL AS-BUILT FITTED DRAWINGS

a. All electrical drawings shall be of A1 size and endorsed by electrical consulting

engineer.

b. Three (3) sets of electrical drawings and electrical load calculations and three (3)

sets of key plan shall be provided and endorsed by the electrical consulting

engineer on behalf of the Developers/ Contractors where:-

i. One (1) set shall be framed and hung in the pumping station.

ii. One (1) set shall be submitted to SYABAS Headquarters.

iii. One (1) set shall be submitted to SYABAS District Office.

c. Three (3) sets of Operation and Maintenance Manual shall be provided by the

electrical consulting engineer on behalf of the Developers/ Contractors where:-

i. One (1) set shall be kept in the pumping station and located at a wall

mounted rack.

ii. One (1) set shall be submitted to SYABAS Headquarters.

iii. One (1) set shall be submitted to SYABAS District Office.

6.15 TESTING AND COMMISSIONING

Two (2) sets of the testing and commissioning records and results that are endorsed by a

qualified and competent personnel shall be in accordance with all Standards, Code of

Practice, Rules and Regulations and forwarded to SYABAS.

6.16 VARIABLE SPEED DRIVE (VSD) PUMPING SYSTEM

Pumps with variable drives should be used to achieve energy saving whenever applicable

and subject to SYABAS approval. Sufficient details shall be submitted to SYABAS for

consideration. A standby generator set shall be provided to cater for load of the VSDs

installed.

6.17 CHECKLIST


attached together with the submission document. The design checklist of Electrical

System for Pumping Station is shown in APPENDIX C.

DRAFT FINAL



Table 6.1 : Proposed lighting fitting and illumination level

Area Maintained Average Illuminance

(lux)

Office/ Computer Rooms 400

Store 200

M&E Plant rooms and Pumping station 250

Internal Corridors 100

Toilets 150

Table 6.2 : Proposed type of light fitting

Area Type of Light Fittings

Office/ Computer Rooms

Fluorescent light fittings with aluminium reflector (Prefably using 36 W lamps)

Store Bare channel fluorescent light fittings

M&E Plant rooms and Pumping station

a. 5 m height and above – low bay metal halide (corrosion resistance type)

b. Less than 5 m – wall mounted fluorescent light fittings complete with metal reflector

Internal Corridors Fluorescent light fittings with aluminium reflector (Prefably using 36 W lamps)

Toilets Compact Fluorescent Downlights

DRAFT FINAL



7.0 MECHANICAL SYSTEM

7.1 GENERAL

Generally in the selection of mechanical equipment, the following requirements shall be met:-

a. The facilities shall perform the essential functions required, with high degree of safety and

reliability.

b. The mechanical facilities shall be determined after weighing the merits and demerits of the

system as a whole.

c. Pump facilities shall be of the highest degree of efficiency.

d. Mechanical equipment selected shall have a high degree of serviceability and suitable for

local use taking into consideration local capability to operate and maintain.

e. Protective and safety devices shall be interlocked such that in times of failure of one part

of the system, the system shall not operate thus preventing further damage to the rest of

the system.

f. Vibration and noise levels produced by the mechanical equipment in operation shall be as

per DOE requirement.

g. Life cycle cost of the mechanical equipment shall be considered.


a. Submission by the consulting engineer to SYABAS for approval shall be done in

two (2) stages as per Clauses 7.2.1 and 7.2.2.

b. The submission requirements shall be as per Clause 3.3. All submission shall be

endorsed by the consulting engineer.

c. All plans/ drawings submitted shall be of A1 size.

d. All drawings shall be endorsed with the word “SUBMISSION DRAWING FOR

APPROVAL”.

e. All drawings shall be approved before any work is allowed to commence.

f. All fire prevention system shall be as per BOMBA requirement.

7.2.1 First Stage (Design Stage Before Tender Award)

a. Approval letter from SYABAS’ Development Department for the detailed design of

civil works.

b. General arrangement drawings of pumping installation.

c. General layout drawings of surge vessel (size to be determined after surge analysis

is carried out).

d. Design calculation for pumping system which shall include the pump curves,

system curves, pumping head calculation and sizing of suction pipe and pumping

mains.

e. Pump and prime mover details.

7.2.2 Second Stage (After Tender Award during Approval Stage of Equipment)

Submissions shall comprise the following items:-

a. Full details of equipment offered or proposed and copies of manufacturer’s specifications

to enable the nature, quality and workmanship of the equipment offered to be assessed.

b. Characteristic curves for the pump offered running individually showing the relationship

between head, discharge, horsepower, efficiency, Net Positive Suction Head (NPSH)

required and the system curves.

c. Duty point and efficiency.

d. The pump, type, brand and detailed construction.

e. The prime mover.

f. Pump accessories.

g. Pipework and valves, materials and sizes.

h. Surge protection system complete with surge analysis calculation.

i. Mechanical handling equipment.

j. Fire protection system and equipment.

k. Proposed spare parts and tools to details.

l. Shop drawings.

DRAFT FINAL



7.3 PLANNED WATER QUANTITY AND NUMBER OF PUMP UNITS

Generally, the planned water quantity and the number of pump units required shall be determined

according to the following criteria:-

a. For treated water pumps, the capacity shall be the maximum daily delivered quantity

and not the average daily quantity.

b. For distribution pump, planned distribution quantity shall be the basis.

c. The number of pumps required shall be determined by the planned quantity of water and

other criteria such as installation cost, conditions of operation and maintenance, power

consumption and factor of the safety desired.

d. For economic operation, it is advisable to use a single duty pump, operate constantly near

the point of efficiency. Larger pumps normally have better efficiency.

e. In the design of a pumping system, pumps shall not operate more than twelve (12) hours

continuously in a day. This is distinct from the criteria for determining the rating of the duty

pump to produce the planned daily quantity.

f. The total pumping head shall not exceed 75 m at 2800 m3/hr for each pumping stage.

g. Standby pumps shall be provided in accordance with the design criteria for pump sets

given in Table 7.1. The number of standby pumps depends on the size of duty pump, the

locality of the installation and factor of the safety desired.

h. In the case where water demand fluctuates widely such as the in-line booster distribution

system, it is advisable to have a combination of different size pumps or variable speed

pumps.

i. All pumps with power of 22.5 kW or 30.0 water horsepower and above shall be

Horizontal Split Casing Pumps with pump speed of not more than 1500 rpm.

j. All pumps with power below 22.5 kW or 30.0 water horsepower shall be either

Horizontal Split Casing Pumps with pump speed of not more than 1500 rpm or End

Suction Pumps with pump speed of not more than 2900 rpm approved by SYABAS.

k. The minimum Factor of Safety (FS) in sizing of motors shall be 1.1 of the motor

power.

l. All pumps, parts and accessories shall comply with international standards, ISO,

and/ or SIRIM standards and shall be manufactured and supplied from a

manufacturer approved by SYABAS.

7.4 PUMPSETS

7.4.1 Duties and Selection

a. Electric driven pumps shall operate at below 1500 rpm.

b. The pump shall have a stable characteristic such that the pressure falls steeply and

continuously from closed valve position.

c. The duty point of the pump supplied shall lie within a range of 20% less to 10% more than

the pump capacity of the best efficiency point for the particular impeller offered.

7.4.2 Horizontal Split Casing Pumps

a. The pump shall be of axially split cast iron casings and high tensile steel shafts running on

ball or roller bearings with suitable lubricating arrangements.

b. The pump shall be supplied with all necessary air release valves, drain valves, suction

and delivery gauge mounting points.

c. The pump shall be supplied complete with combined base plates and approved type of

flexible couplings.

d. The combined base plate shall be fabricated according to the manufacturer’s instruction.

e. The combined base plate and stool shall be supplied complete with all necessary holding

bolts and lifting points.

7.4.3 End Suction Pumps

A spacer piece shall be provided and coupling to facilitate removal of impeller without dismantling

the connecting pipeworks.

7.4.4 Pump Casing, Rotating Element, Driving Coupling, Gland Sealing and Other Pump

Accessories

a. Pump Casing

i. The pump casing shall be of volute from superior casting material or cast iron with

close grain conforming BS EN 1561.

DRAFT FINAL



ii. The pump casing shall withstand twice the maximum shut off pressure of the

pumps.

iii. The rotating element shall consist of a balance corrosion resistant high tensile steel

shaft, keyed on to the impeller or impellers.

b. Rotating Element

i. All impellers, neck rings, sleeves, gland, lantern ring and bushes shall be of zinc-

free bronze or stainless steel.

ii. The rotating element shall be carried in deep grove ball bearings on split bush

journal bearings in which ball thrust bearing or thrust disc and nuts are provided to

restrict axial movement.

iii. Bush bearings shall be manufactured in plain leaded bronze or in bronze lined with

metal normally apply to low speed, low heads pumps.

iv. Diametrical clearance shall be between 0.250 mm to 0.300 mm.

c. Gland Sealing

i. Gland sealing shall be of silicon carbide or tungsten carbide mechanical seals

unless otherwise specified.

ii. The mechanical seals shall be manufactured to BS ISO 3069.

iii. They shall be maintenance free and suitable for use in treated water.

iv. The rotary and stationary seal housing shall be corrosion resistant while the

secondary seals shall be highly chemical and thermal resistant.

v. All seal surfaces shall be able to withstand up to one and half times its working

pressure, temperature of 200 deg. C and velocity of 20 m/s.

vi. For certain applications where mechanical seal is not available, the gland packing

may be used with the approval of SYABAS.

vii. The packing shall be non-asbestos type. It shall be organic fibre based

impregnated with PTFE as lubricant.

viii. It shall be able to prevent damage on sleeve/ shaft and leakage due to penetration.

ix. It shall be suitable for use in centrifugal pump handling water containing debris and

sand.

d. Pump Accessories

i. Coupling

• Drive shall be transmitted from the driving unit to the pump by matched

flexible coupling unit.

• The coupling system shall be strong, robust and flexible to accommodate

parallel, angular and vertical misalignment.

• The rubber shall be able to absorb shock to reduce vibration and torsion

oscillation and shall be able to withstand ambient temperature up to 50 deg.

C.

ii. Bolt and Nuts

• All exposed bolts and nuts used in the construction for the pump shall be

cadmium treated or zincified.

• If normal mild steel bolts and nuts are used they shall be protected from rust

by chemical treatment or protective caps.

iii. Vibration Isolation Material

• The pump sets shall be provided with vibration isolation such as rubber

damper between pump set and pump plinth, coupling for the suction pipe

and expansion joints for the delivery pipes.

• For pumps which are sited on ground, Neoprene/ rubber mount and

structural steel base shall be used for pumps with power smaller than

4 kW whereas steel springs and concrete inertia base shall be used for

pumps with power larger than 4 kW.

• For pumps which are sited on suspended floor slab, steel springs and

concrete inertia base shall be used.

7.5 PRESSURE GAUGES

a. The gauge construction shall comply with BS EN 837-1 and ISO Certification.

b. The gauge used shall be of liquid filled type.

c. The entire gauge shall be calibrated either in single scale unit in METRE/WATER or

dual scale unit in METRE/WATER and FEET/WATER.

DRAFT FINAL



d. The dial of gauge shall not be less than 150 mm in diameter for pumping capacity of

below 300 m³/hr and 250 mm in diameter for pumping capacity of above 300 m³/hr.

e. The range of suction pressure gauge shall generally be between 0 m to 20 m head of

water and the range of delivery pressure gauge shall be between 0 m to 100 m head

of water.

f. The gauge shall have a micrometer zero adjustable pointer and restrictor screw.

g. The over pressure limit shall not be less than 1.30 x f.s.d.

h. The accuracy shall be +/- 1% f.s.d or better according to BS EN 837-1.

i. The gauge shall be able to withstand up to 200 deg. C of process temperature and

65 deg. C of ambient temperature.

j. The compound gauge shall be installed when measuring suction pressure.

k. The dial shall be of printed wetted materials and of high accuracy.

l. Suitable gauge shall be selected such that the working pressure is at the middle of

the range.

m. The operating pressure shall not exceed 70% of the full scale dial.

n. The gauge shall be installed with all the necessary accessories to protect the gauge

as per below:-

i. Snubber

• The purpose of snubber is to protect the gauge against sudden

pressure change and fluctuation of pressurized fluid.

• The snubber shall be of a large surface area snubbing element with

special design for water application.

• The snubber shall be of ANSI 316 Stainless Steel housing with SS316

porous metal filter disc or needle dampener.

• The snubber shall be of ISO certification.

ii. Instrument Isolating Valve (Needle Type)

• The instrument isolating valve for the gauge shall be of needle type,

which can be used to throttle pulsation, provide precision flow control

and as a stop valve.

• The instrument isolating valve shall be able to withstand operating

pressure of 280 m head of water or higher.

iii. Overload Protector (For pump discharge side)

• Overload protector shall be designed to protect pressure instrument

from over pressure, exceeding the specified pressure range by

sudden and excessive pressure fluctuation from surge or spike.

• For pumping pressure of above 75 m, a pressure gauge shall be

installed with overload protector devices to block the surge pressure

exceeding the allowable pressure, until it comes back to normal, when

system pressure becomes normal. Hence this device safeguards the

pressure instrument gauge.

• The material overload protector shall be of ANSI 316 Stainless Steel

body with gasket.

• The overload protector shall be of piston type with adjustable setting

range.

• The overload protector shall be of ISO certification.

7.6 SUCTION AND DELIVERY PIPES

The criteria to be considered when designing suction and delivery pipe are as follows:-

a. Suction pipe shall be as short as possible.

b. Bends shall be avoided if possible.

c. The minimum length of straight pipe before the suction intake of pump shall be at

least 5 times the diameter of the suction pipe.

d. The depth between the low surface of the pipe chamber and the end of the suction pipe

shall be more than one and a half (1½) times of the pipe diameter.

e. The depth between the end of suction pipe or strainer and the bottom of pump chamber

shall respectively be a minimum of 0.5 to 0.8 times the pipe diameter.

f. The distance between the suction pipe and the wall of the pump chamber shall be more

than one and a half (1½) times the pipe diameter.

g. The distance between the adjacent suction pipes in the case of equal pipe diameter shall

be more than three (3) times the pipe diameter.

h. For suction pipes with different diameters, the distance shall be more than three (3) times

the largest diameter.

i. When sizing the suction and delivery pipes, the velocity shall not be greater than 1.5

m/s and 2.5 m/s respectively.

DRAFT FINAL



7.7 PIPEWORKS

a. All pipes and specials shall be of mild steel conforming to MS 708 or ductile iron

conforming to BS EN 545.

b. All mild steel pipes and specials shall be painted with one (1) layer of zinc chromate

and two (2) layers of gloss finish coating while ductile iron pipes and specials shall

be painted with two (2) layers of gloss paint.

c. All mild steel pipes shall be lined internally with concrete.

d. All pipes shall be flange jointed, machined and drilled conforming to BS EN 1092-3.

e. Flanged items shall be supplied complete with bolts, nuts and jointing materials.

7.8 VALVES

7.8.1 Sluice Valves

a. Sluice valve shall conform to the requirements of BS 5163 and the closing direction shall

be of clockwise closing.

b. The valve shall be fitted with hand wheels with the direction of opening and closing cast

marked thereon.

c. Sluice valves in pumping station shall only be used for pipe sizes of 250 mm diameter and

below.

d. Sluice valve shall be fully designed for pressure rating of PN 16.

7.8.2 Butterfly Valves

a. All butterfly valves shall conform to the requirements of BS EN 593 and shall be used for

pipe sizes above 250 mm diameter.

b. The butterfly valve shall be fully designed for pressure rating of PN 16.

c. For butterfly valve without motorized gear, a suitable hand wheel for headstock shall be

provided.

7.8.3 Non-slam Type Check Valves and Surge Calculation

a. General The non-slam check valve shall conform to BS EN 593 and shall be with high operating

reliability and minimum pressure losses.

b. Design and Finish

i. The non-slam type check valve shall be designed to be of short stroke, shock free

closure and can be installed in any position i.e. horizontal, vertical or inclined.

ii. The check valve shall also be designed such that the minimum cross-sectional

area at the four most critical points shall be greater or equal to cross sectional area

of the pipe.

iii. The check valve shall be used for automatic operation by the use of a direct spring

loaded closing element.

iv. The valve shall be with metal to metal seat and shall operate with minimum

wearing parts and minimum maintenance.

v. The valve shall be designed with flow diffuser to minimize pressure losses and

shall be flanged and drilled conforming to BS EN 1092-3.

c. Surge Simulation

i. A surge simulation shall be performed on the pumping system to determine the

variations of pressure in the surge vessel and along the pipeline profile.

ii. The surge simulation shall include the behaviour of the air volume and pressure in

the surge vessel after incorporating the check valves.

7.8.4 Altitude Valves

a. Altitude valve controls the level of a tank. It remains open when the tank is not full

and it will close when the tank reaches its maximum level.

b. Strainer shall be installed before any altitude valve.

DRAFT FINAL



7.9 SURGE SUPPRESSION SYSTEMS

a. To counter water hammer, the following methods shall be used in pumping stations:-

i. Pressurized surge vessel to prevent column separation and taking into account of

check valve.

ii. Surge anticipating valves which open or closed at some preset values or

mechanism which lower surge pressure in the pipeline.

b. Manufacturers are required to submit complete sets of drawings, calculations and

etc. to DOSH for approval.

c. A set of surge suppression system, air compressor, design calculation, drawing and

test certificate shall be provided together in the handing over manuals.

d. Pumps tested at site and under controlled condition at factory shall conform to BS

EN ISO 5198.

e. Witness testing is required for pumps with flow rate of larger than 760 m3/hr.

7.10 MECHANICAL HANDLING EQUIPMENT

a. Gantry crane handling equipment shall be used for load exceeding 50 kg.

b. Monorail cranes shall be used for lighter load and when the centre line of the equipment

is in line with the entry or exit.

c. All cranes shall be suitably sized to lift 1.25 times the weight of the heaviest equipment.

d. Electrically operated crane shall be required in large installation where individual

equipment weight is more than 100 kg.

e. All electric driven fully motorized cranes shall be tested and approved by DOSH

before testing upon installation and handing over to SYABAS.

f. Manufacturers shall endorse and provides all application for these purposes.

g. Drawings, calculation and certificate shall be handed over to SYABAS during the

first inspection for handing over.

7.11 MECHANICAL SPARE PARTS

Developers are required to provide mechanical spare parts as follows:-

a. One (1) set of repair kit for Altitude Control Valve.

b. One (1) set of repair kit for Surge Anticipating Valve.

c. One (1) set of Mechanical Seal.

d. One (1) set of Impeller.

e. One (1) set of Shaft.

f. One (1) set of Shaft Sleeve and Lock Nut (if gland packing is used).

7.12 VARIABLE SPEED DRIVE (VSD) PUMPING SYSTEM

Please refer to Clause 6.16.

7.13 CHECKLIST


attached together with the submission document. The design checklist of Mechanical

System for Pumping Station is shown in APPENDIX C.

DRAFT FINAL



Table 7.1 : Design criteria for pump sets

Maximum Speed (rpm) Pumping Rate Per Pump (m³/hr)

Number of Pump sets

Total

Maximum Pumping Hours

Minimum Efficiency

(%)

Maximum Pumping Head (m)

Horizontal Split Casing

Pumps

End Suction Pumps

Below 400 On Duty = 1 Standby = 1

2 12 75 75 1,500 2,900

400-2800 On Duty = 2 Standby = 2

4 12

75

75 1,500 -

Above 2800 On Duty = 4 Standby = 2

6 12 80 75 Not more than 1,000

-

Notes:

a. Duty pump is the primary pump used for continuous operation at maximum of twelve (12) hours a

day.

b. Standby pump is an extra-connected pump used to alternate or serve as duty pump in case of any

duty pump fails.

c. All pumps shall be installed to operate under positive suction head.

DRAFT FINAL


8-1


8.0 SCADA/ TELEMETRY SYSTEM

8.1 GENERAL

a. All detailed drawings for RC chambers and covers for flow and pressure transmitters shall

be submitted to SYABAS for approval prior to construction. All chambers shall not be

water logged.

b. All cables (power and signal) laying, cable protective covers, cable route markers and

cable joint pillars (for underground cable joint, if any) shall be in accordance with SYABAS

requirements. All underground cables shall be of Steel Wire Armoured (SWA) type.

c. All earthing points shall be of 1 ohm or less.

d. All equipment and instrumentation requirements and specifications mentioned above and

works carried out later shall comply with SYABAS requirements.

e. All testing, commissioning and calibration of telemetry system shall be carried out

by authorised supplier/ SYABAS.

f. All reservoirs/ tanks shall be telemetered.

8.2 HARDWARE REQUIREMENTS

8.2.1 General

a. The equipment supplied shall be of the latest available solid-state design using

field proven techniques and capable of giving satisfactory performance under the

specified ambient conditions without the benefit of air-conditioning.

b. The system shall be modular in concept leading to a system that is easily expanded,

modified or reconfigured. The system shall be expandable in order to cope

with the envisaged future requirements. The addition of outstations or MMIs in

future shall be carried out without taking the system out of service and shall not

jeopardize the continuous working of the rest of the system.

c. The system shall be designed for continuous fail-safe operation with minimum

amount of maintenance. Failure in any part of the system shall be localized to that

part only and shall not cause damage to other parts of the system.

8.2.2 Outstations

a. The outstation equipment shall be provided in dust proof, industrial type fiber-

rein forced-polyester enclosures to IP66 for both indoor and outdoor installations.

All outstation equipment including the GSM modem, antennae and back-up power

batteries shall be installed within the enclosure and not externally.

b. The outstation equipment furnished shall be designed for installation in a dusty,

humid and tropical environment and shall operate satisfactorily in temperatures

between 5 deg. C and 70 deg. C and up to 95% relative humidity assuming

no condensation will occur. Each remote outstation shall be an RTU, stand alone

unit capable of performing data acquisition and control, independent of the

master station. Each outstation shall be provided with the required number of

inputs and outputs subject to SYABAS approval.

c. All inputs shall be time-tagged and transmitted to the master station. The time-tag

shall be the actual time of event and its accuracy and resolution shall be within 1

second.

d. Reservoir outstations shall communicate with the master station via a GPRS

communication link. In the event of GPRS connectivity failure, the reservoir

outstations shall be able to send SMS to the Master Station and/or the respective

pump house outstation. The outstation RTUs shall come with report-by-exception

(RBE) feature where only data from I/O points that have experienced a change in

status shall be reported back to the master station. For analogue input points,

the user shall be able to set the percentage of change in the measured parameter

that represents a change in status for reporting to the master station.

e. Each outstation shall include standard software, transparent to the operator, to

automatically start up the communication system and self-document any

reconfiguration updates. The configurations stored in any RTU shall be up-loadable

and viewed on a Pocket PC or Notebook PC.

8.2.3 Remote Terminal Units

Remote Terminal Units (RTUs) shall be provided in the outstations in accordance with

the specification requirements and drawings. Each type of RTU provided for the scheme

shall be from the same manufacturer to provide standardization and interchangeability

of equipment. Two (2) types of RTU shall be used for different type of function.

DRAFT FINAL


8-2


a. Type 1 - designed for installations at remote sites without permanent AC power

supply source,

b. Type 2 - designed for installations at pump houses and any remote sites that

require an expandable feature such as video surveillance features, door

access system and many more.

8.2.4 GPRS/ GSM Modem

a. A GPRS/ GSM modem shall be provided at each of the outstations for data

communication. The modems shall come with dual band feature and be designed

for data, fax SMS and voice applications. The modems shall be compliant with

GSM phase 2/2+ and allow control via AT commands. The modems shall support

MS Class B and GPRS class 8 for data transfer and be suitable to operate in

temperatures up to 55 deg. C. Modem at master station shall be configured to

send SMS to the selected authorized personnel and must be ready to receive SMS

from existing metering zone sites. Modems at outstation shall be able to

communicate with broadband connection at the master station.

b. The outstations shall have a continuous GPRS link with the master station and

upload any status change data to the master station. The master station shall not

have to poll the outstations for data.

8.2.5 Video Cameras

Video cameras shall be installed at selected outstation sites for video surveillance

subject to SYABAS requirements

8.3 COMMUNICATION SYSTEMS

a. Outstations RTU must be configured to use GPRS as a primary link to

communicate with master station and must be able to switch to SMS mode in the

event of GPRS connectivity failure. All outstations must be able to be controlled

by master station.

b. In the event of GPRS connectivity failure, the data must be recorded, compressed

and sent back to the Master Station via SMS at 4 hour interval. Regardless of the

failure of GPRS, all critical alarms shall be sent back in real time via SMS to the

respective parties as specified by SYABAS.

8.4 OPERATION REQUIREMENTS ON SCADA SYSTEM

8.4.1 Introduction

a. Local RTU shall transmit all the required data either controlling or monitoring

purposes via GPRS network.

b. Level shall be the primary parameter to start and stop the pump. High level signal

generated by the level sensor at the reservoir shall be transmitted by the RTU to

the SCADA Master Station (Command Centre) and shall relay back, the signal to the

Motor Control Centre (MCC) to stop the pump.

c. Upon detection of reservoir low level, system shall check the level of suction tank

and other existing pumpset protection parameters before MCC could instruct the

pump to start. If the suction tank level is below the low level, pump shall not be

able to start until it reaches the pre determined level.

d. The software generated alarms on the reservoirs level shall be provided to alert the

system remotely at SCADA and the authorized personnel for their further

remedial action. At all times, pumps shall be automatically operated via SCADA

system at the Command Centre.

e. Operations shall be able to be carried out in three (3) modes:-

i. Remote/ Auto

In this mode, command send by the SCADA system at Command Centre

shall be able to control the start/stop of the pump(s) automatically.

ii. Remote/ Manual

In this mode, Command Centre can control and manipulate the pumps

operation. Based on the monitored level, the authorized personnel shall

be able to send a signal to the respective RTU which shall be able to relay

the signal to start/ stop the pump(s).

DRAFT FINAL


8-3


iii. Local/ Manual

By selecting this mode, operator at the pump house shall be able to start/

stop the pump by pushing the start/stop button at the Motor Control

Centre (MCC). However, emergency stop button provided locally adjacent

to the pumps shall override the command at the MCC and SCADA MMI at

any time, in any mode.

8.4.2 Suction Reservoirs and Suction Tanks

a. One (1) no. pressure transmitter complete with pressure gauge and lightning surge

arrestor shall be provided in RC chamber at the inlet pipe. The instrument shall be housed

in floor mounted weatherproof metal cabinet (in accordance with attached SYABAS’

Standard Drawings) complete with high quality stainless steel padlock. Cable used

shall be of 4C 2.5 mm2 PVC armoured copper cable (power and signal). An earthing

system of less than 1 ohm shall be provided.

b. One (1) no. level instrument ultrasonic transmitter complete with lightning surge

arrestor shall be provided at the suction reservoir/ tank. The instrument shall be housed in

floor mounted weatherproof metal cabinet (in accordance with attached SYABAS’

Standard Drawings) complete with high quality stainless steel padlock. Cable used

shall be of 4C 2.5 mm2 PVC armoured copper cable (power and signal). An earthing

system of less than 1 ohm shall be provided.

c. Overflow detection system and level instrument accuracy checker complete with

stainless steel electrodes mounted or stainless steel bracket (in accordance with

attached SYABAS’ Standard Drawings), floatless relay and auxiliary relay shall be

provided at overflow chamber to detect overflow. Armoured type of copper cable (power

and signal) shall be used. Overflow detection will give an alarm upon detecting a

dangerous high level. An accuracy checker will compare the reading at level sensor

against a fixed level water point in the suction tank. Accuracy of error shall be not

more than 2%.

d. Copper tape or bare stranded G.I. cable complete with concrete earthing chamber shall

be used for external lightning protection system. All installation shall be concealed

inside slab/ wall, etc. Earthing system of less than 1 ohm shall be provided.

e. A 600 mm diameter stainless steel wire type of mechanical dial indicator shall be

provided. The range shall be of 0 - 15 m.

f. A 25 mm diameter full bore tapping complete with ball valve at scour pipe shall be

provided before scour valve.


a. One (1) no. magnetic flow meter with transmitter complete with two (2) nos.

lightning surge arrestor shall be provided in RC chambers at the delivery pipes. The

flow meter shall be provided with a 25 mm dia. full bore tapping complete with ball

valve. All instruments shall be housed in floor mounted weatherproof metal cabinet (in

accordance with attached SYABAS’ Standard Drawings) complete with high quality

stainless steel padlock. Cable used shall be of 4C 2.5 mm2 PVC armoured copper cables

(power and signal with 2 pairs of spare cables). An earthing system of less than 1 ohm

shall be provided.

b. A floor standing instrumentation/ Remote Terminal Unit (RTU) panel complete with mimic

diagram, one (1) no. RTU GSM System, time switch with contactor, all lightning surge

arrestors, standby power supply system, relays, alarm annunciator, digital indicator, digital

clock, indicating lights, siren and high quality stainless steel padlock shall be provided

(cubicle and schematic diagrams of the instrumentation/ RTU panel shall be in

accordance with attached SYABAS’ Standard Drawings). An earthing system of less

than 1 ohm shall be provided.

c. One (1) no. pressure transmitter complete with pressure gauge and lightning surge

arrestor shall be provided in RC chamber at the pumping main. The instrument shall

be housed in floor mounted weatherproof metal cabinet (in accordance with

attached SYABAS’ Standard Drawings) complete with high quality stainless steel.

Cable used shall be of 4C 2.5 mm2 PVC armoured copper cable (power and signal).

An earthing system of less than 1 ohm shall be provided. A display shall be

provided at instrumentation panel from this sensor to indicate the pumping

pressure when the pump is running. The signal will be converted to water level in

the high reservoir/ tank when the pump stops.

d. Local controls, automatic controls and remote controls for motors shall be provided

via SCADA system.

e. The pump house outstation shall also perform pump cycling operations. After a

particular pump has been on duty for a certain accumulated period, the outstation

shall stop the pump and designate the next pump as the duty pump. The duty cycle

DRAFT FINAL


8-4


period shall be user-settable via software. The change in status of the pumps shall

be immediately reported to the master station.


a. One (1) no. magnetic flow meter with transmitter complete with two (2) nos.

lightning surge arrestor shall be provided in RC chambers at the outlet pipe. The flow

meter shall be provided with a 25 mm dia. full bore tapping complete with ball valve.

All instruments shall be housed in floor mounted weatherproof metal cabinet (in

accordance with attached SYABAS’ Standard Drawings) complete with high quality

stainless steel padlock. Cable used shall be of 4C 2.5 mm2 PVC armoured copper

cables (power and signal with 2 pairs of spare cables). An earthing system of less than 1

ohm shall be provided.


arrestor shall be provided at the reservoir/ tank. The instrument shall be housed in floor

mounted weatherproof metal cabinet (in accordance with attached SYABAS’ Standard

Drawings) complete with high quality stainless steel padlock. Cable used shall be of

4C 2.5 mm2 PVC armoured copper cable (power and signal). An earthing system of less

than 1 ohm shall be provided.







against a fixed level water point in the reservoir. Accuracy of error shall be not more

than 2%.

d. Copper tape or bare stranded G.I. cable complete with concrete earthing chamber shall

be used for external lightning protection system. All installation shall be concealed inside

slab/ wall, etc. Earthing system of less than 1 ohm shall be provided.

e. An additional one (1) no. RTU GSM system shall be provided at the reservoir/ tank site

if the reservoir/ tank location is outside the pumping station and suction reservoir/

tank compound. The panel shall be installed with high quality stainless steel

padlock, time switch with contactor, all lightning surge arrestors, standby power

supply system and relays.

f. A 900 mm diameter stainless steel wire type of mechanical dial indicator shall be

provided. The range shall be from 0 - 15 m.

g. Pumping line and scouring line shall be connected by a 25 mm diameter stainless

steel pipe.

h. Three (3) nos. of 25 mm diameter full bore tappings complete with ball type stop

valves at pumping line, scouring pipe and one (1) no. in between shall be provided.

i. The reservoir outstation shall update the master station on the status of the field

instruments and equipment on a Report-By-Exception (RBE) basis. This means

that the outstation shall only report back to the master station on input/output

points that have changed in status. For analogue signals the percentage

change that represents a change in status shall be user settable.

j. The Master Station in Command Centre shall be configured with high and low

levels of each ground and elevated reservoir. However, the need for the additional

level configuration on alarms can be software generated.

k. Alarms generated shall be able to be viewed by SYABAS Crisis Operation Centre.

l. If the reservoir outstation is unable to communicate with the master station, it

shall automatically send the signal(s) to the respective pump house outstation to

initiate automatic control functions.

8.4.5 Telemetry Systems for Gravity Fed Reservoirs and Tanks

a. One (1) no. magnetic flow meter with transmitter complete with two (2) nos. lightning

surge arrestor shall be provided in RC chambers at the outlet pipe. The flow meter shall

be installed with a 25 mm dia. full bore tapping complete with ball valve. All

instruments shall be housed in floor mounted weatherproof metal cabinet (in accordance

with attached SYABAS’ Standard Drawings) complete with high quality stainless steel

padlock. Cable used shall be of 4C 2.5 mm2 PVC armoured copper cables (power and

signal with 2 pairs of spare cables). An earthing system of less than 1 ohm shall be

provided.


arrestor shall be provided. The instrument shall be housed in floor mounted weatherproof

metal cabinet (in accordance with attached SYABAS’ Standard Drawings) complete

with high quality stainless steel padlock. Cable used shall be of 4C 2.5 mm2 PVC

armoured copper cable (power and signal). An earthing system of less than 1 ohm shall

be provided.

DRAFT FINAL


8-5








against a fixed level water point in the reservoir/ tank. Accuracy of error shall be not

more than 2%.

d. A floor standing instrumentation/ Remote Terminal Unit (RTU) panel complete with

mimic diagram, one (1) no. RTU GSM System, time switch with contactor, all

lightning surge arrestors, standby power supply system, relays, alarm annunciator,

digital indicator, digital clock, indicating lights, siren and high quality stainless steel

padlock shall be provided (cubicle and schematic diagrams of the instrumentation/

RTU panel shall be in accordance with attached SYABAS’ Standard Drawings). An

earthing system of less than 1 ohm shall be provided.

e. A 900 mm diameter stainless steel wire type of mechanical dial indicator shall be

provided. The range shall be from 0 - 15 m.

f. One (1) no. pressure transmitter complete with pressure gauge and lightning surge

arrestor shall be provided at the incoming in brickwall/ concrete chamber. The instrument

shall be housed in floor mounted weatherproof metal cabinet (in accordance with

attached SYABAS’ Standard Drawings) complete with high quality stainless steel

padlock. Cable used shall be of 4C 2.5 mm2 PVC armoured copper cable (power and

signal). An earthing system of less than 1 ohm shall be provided.

8.5 SPARE PARTS

The following spare parts shall be provided:-

a. Ultrasonic level transmitter : 1 unit

b. Category 2 Lightning Protection Unit (LPU) : 1 unit

c. Category 3 Lightning Protection Unit (LPU) : 4 units

d. Lead acid rechargeable battery : 2 units

e. Pressure transmitter : 1 unit

f. RTU with built in Programme Logic Controller (PLC) + modem : 1 unit

8.6 CHECKLIST

The checklist shall be completed and endorsed by consulting engineer and shall be attached

together with the submission document. The design checklist of Telemetry System is shown in

APPENDIX C.

DRAFT FINAL


9-1


9.0 CAPITAL COST CONTRIBUTION (SKP)

9.1 DEFINITIONS

Pursuant to the Water Supply (Selangor) (Capital Cost Contribution) Rules 2003, Capital Cost

Contribution or Sumbangan Kos Pembangunan (SKP) is the payment imposed on the developers

as a contribution for the development of source works (dams, water treatment plants etc),

upgrading of water distribution system and reservoir/ tank. This is an additional cost which has to

be borne by developers for the construction and completion of water supply systems for their

developments.

9.2 CHARGE RATES

Charge rates for SKP are as shown in Table 9.1.

9.3 EXEMPTION FROM CAPITAL COST CONTRIBUTION

The following types of development are exempted from payment for SKP:-

a. Low cost projects which are fully funded by the State or Federal Government and the

National Housing Department

b. Place of worship

c. Social and community buildings

d. Community centre

e. Community hall

f. Village (kampung) house which cost less than RM 25,000.

9.4 EFFECTIVE DATE

a. The effective date for the charges is 23rd July 2002. All developments for which the

approval for external water supply system was obtained after the date of 23rd July 2002,

are subject to the mentioned charges.

b. Where approval for external water supply system was obtained before the date of 23rd

July 2002, the developer would only have to pay the particular SKP (60% of SKP) during

the stage of meter application.

c. Plan (external and internal) processing fees will not be charged for application for water

supply system made before 23rd of July 2002 .

DRAFT FINAL


9-2


Table 9.1 : Charge rates of Capital Cost Contribution (SKP) for land development in the State of

Selangor, the Federal Territories of Kuala Lumpur and Putrajaya.

Types of Premises Percentage per unit

%

Maximum charge for each unit

Apartment

Private Low Cost

Medium Cost (up to RM 150,000)

High Cost (> RM 150,000 and < RM 300,000)

Luxurious (> RM 300,000)

Residential

Private Low Cost Terrace House

Medium Cost (up to RM 150,000)

High Cost (> RM 150,000 and < RM 300,000)

Luxurious Cost (> RM 300,000)

Semi-detached

Bungalow

Village (kampung) House (> RM 25,000)

Bungalow

Commercial

Service Apartment

Shop House

Shop Office

Linked/ Terraced Factory

Factory Lot

Industrial Lot

* whichever is lower

1/8

1/4

1/4

1/4

1/8

1/4

1/4

1/4

1/4

1/4

1/4

1/4

1/2

1/2

1/2

1/2

1/2

1/2

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

RM

75*

300*

500*

1,500*

75*

300*

500*

1,500*

1,500*

2,500*

100*

500*

500*

500*

500*

500*

500*

500*

Each Building Minimum Charge

Commercial

Business Complex

Supermarket

Shopping Complex

0.8Q

0.8Q

0.8Q

RM

RM

RM

1,000

1,000

1,000

Types of Premises Each Building Minimum Charge

Hotel/ Private Hospital

Office building

Institution/ College/ University

Factory

Petrol Pump Station

Government

Government Quarters

School/ Clinic/ Medical centre/ District Office

Hospital/ Government Office Complex

Hawker Centre/ Market

- Q = Design water demand per day in gallons

0.8Q

0.8Q

0.8Q

0.8Q

0.8Q

0.6Q

0.6Q

0.6Q

0.6Q

RM

RM

RM

RM

RM

RM

RM

RM

RM

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

DRAFT FINAL



10.0 SERVICE CHARGES

Pursuant to the Water Supply (Selangor) (Charges) Rules 2006, the service charges are as

shown in Table 10.1.

Table 10.1 : Service charges as per Water Supply (Selangor) (Charges) Rules 2006

Type of Charges Charge

10.1 CHARGES FOR CONNECTION TO PUBLIC MAINS

(a) For connection to main up to 15 mm diameter pipe inclusive cost of ferrule.

RM 75.00

(b) For connection to main of 16 mm up to 20 mm diameter pipe inclusive cost of ferrule.

RM 127.50

(c) For connection to main of 21 mm up to 25 mm diameter pipe inclusive cost of ferrule.

RM 225.00

(d) For connection to main of pipe exceeding 26 mm diameter. Actual cost plus 25% with a minimum of

RM 300.00

10.2 CHARGES FOR DISCONNECTION AND RECONNECTION

Charges for disconnection and reconnection on request or where the supply has been cut for default of payment of water charges or for an offence against the provisions of the Water Supply Enactment 1997:-

(a) For meter size below 25 mm

(i) Disconnection for non-payment. RM 25.00

(ii) Reconnection on payment RM 25.00

(iii) Disconnection on request and reconnection. RM 25.00

(iv) Remove plug at communication pipe to restore supply. Actual cost plus 25%

(b) For meter size above 25 mm

(i) Disconnection of 26 mm to 50 mm meter for non-payment. RM 75.00

(ii) Reconnection of 26 mm to 50 mm meter on payment. RM 75.00

(iii) Disconnection of 51 mm to 150 mm meter for non-payment. RM 150.00

(iv) Reconnection of 51 mm to 150 mm meter on payment. RM 150.00


10.3 CHARGES FOR METER TESTS

(a) Deposit for testing 15 mm meters or smaller sizes. RM 22.50

(b) Deposit for testing 16 mm to 20 mm meters. RM 30.00

(c) Deposit for testing 21 mm to 50 mm meters. RM 75.00

(d) Deposit for testing 51 mm to 80 mm meters. RM 150.00

(e) Deposit for testing 81 mm and meter of larger size. Actual cost plus 25% with a minimum of

RM 150.00

10.4 CHARGES FOR SWIMMING BATH TESTS

(a) On granting of the first certificate. RM 300.00

(b) Renewal certificate of test. RM 75.00

10.5 CHARGES FOR LICENCES TO CARRY OUT WORK

(a) Testing fee. RM 250.00

(b) On the granting of the first licence. RM 200.00

(c) Renewal of licence. RM 100.00

10.6 CHARGES FOR PRESSURE TEST ON MAINS

For carrying out on request a pressure test on the public main. RM 300.00

10.7 AGENCY FEE

(a) Private Development 25% of actual cost

(b) Quasi Government including Perbadanan Kemajuan Negeri Selangor (PKNS).

15% of actual cost

DRAFT FINAL




10.8 CHARGES FOR NEW INSTALLATION WITHOUT TAPPING OR

TEE-CONNECTION

(a) For meter below 13 mm in size. RM 15.00

(b) For meter of 14 mm to 19 mm in size. RM 30.00

(c) For meter of 20 mm to 25 mm in size. RM 45.00

(d) For meter of 26 mm and larger in size. Actual cost plus 25% subject to a minimum

of RM 75.00

10.9 SUPERVISION CHARGES FOR CONNECTION

(a) Tee-connection to 100 mm main. RM 5.00/mm diameter

(b) Tee-connection to 150 mm main. RM 5.00/mm diameter

(c) Tee-connection to 200 mm - 250 mm. RM 5.00/mm diameter

(d) Tee-connection to 300 mm - 375 mm. RM 5.00/mm diameter

(e) Tee-connection to 400 mm - 600 mm. RM 5.00/mm diameter

(f) Tee-connection to main exceeding 600 mm. RM 5.00/mm diameter

`

115321977 Syabas Guidelines Draft Final 080620071

Documents

Transcript of 115321977 Syabas Guidelines Draft Final 080620071