Koc l 002 Revision 3

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KUWAIT OIL COMPANY (K.S.C.)

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of 38 REV.3III DOC. NO. KOC-L-002 II II

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KUWAIT OIL COMPANY (K.S.C.)

STANDARDS PUBLICATION

KOC RECOMMENDED PRACTICE

FOR

THE PROTECTION OF KOC SERVICES:

CLEARANCE REQUIREMENTS FOR

BURIED PIPELINES, CABLES, UNDERGROUND

STRUCTURES, BUILDINGS AND

HOUSING PROJECTS

DOC.NO. KOC ..L..002

STANDARDS TEAM

DOC. NO. KOC-L-002 Page 2 of 38 REV.3

ENDED PRACTIC FOR

THE PROTECTI N OF KOC S RVICES:

KOC REC

CLEARANCE REQUIREM NTS FOR

BURl D PIPELINES, CABLES,

UNDERGROUND STRUCTURES,

BUILDINGS AND HOUSING PROJ CTS

DOC.N . KOC-L-002

ISSUING AUTHORITY:

3 29.03.11

Rev. Date

Amended and re-issuec mmended Practi

Description

STANDARDS TEAM

Iii DOC. NO. KOC-L~~=====p=a=g=e=3=O=f=3=8======~II========R=E=V=.3======~ TABLE OF CONTENTS

PAGE NO.

FOREWORD 5

1.0 SCOPE 7

2.0 APPLICATION 7

3.0 TERMINOLOGY 8

3.1 Definitions 8

3.2 Abbreviations 9

4.0 REFERENCE CODES AND STANDARDS 10

4.1 Conflicts 10

4.2 List of Standards and Codes 10

5.0 ENVIRONMENTAL CONDITIONS 12

6.0 HEALTH, SAFETY AND ENVIRONMENT 12

7.0 BASIC REQUIREMENTS 13

7.1 General 13

7.2 Interaction Tests 14

7.3 Depth of Soil Cover 14

7.4 Safety Measures 14

7.5 Co-ordination with Ministries/Organisations 15

8.0 PROTECTION REQUIREMENTS 16

8.1 Interaction Measures 16

9.0 CLEARANCE REQUIREMENTS BETWEEN

BURIED PIPELINES 17 9.1 Pipelines Crossing Each Other 17

131 9.2 Clearance Between Cathodically Protected and I or

Unprotected Pipelines in Parallel or with Other Structures 17

10.0 CLEARANCE REQUIREMENTS IN VALVE PITS FOR

CRUDE OIL, GAS AND CONDENSATE PIPELINES 19

11.0 CLEARANCE REQUIREMENTS BETWEEN PIPELINES AND CABLES 19

11.1 Pipelines and Telecommunication Cables or

Low Voltage (440 V and below) Cables 19

11.2 Pipelines, and Electrical Power Cables Operating at

3.3 kV and 11 kV 20 11.3 Clearances Between KOC Services and MElEW Medium &

High Voltage Cables 20 11.4 Clearances Between KOC Pipelines and Overhead

Power Transmission Lines 21

12.0 CLEARANCE REQUIREMENTS BETWEEN ELECTRICAL

POWER CABLES AND TELECOMMUNICATION CABLES 22

of 38 REV.3

13.0 CLEARANCE REQUIREMENTS FOR BUILDINGS

AT

22

14.0 SPACING REQUIREMENTS FOR HOUSING PROJECTS I BUILDINGS

NEAR HYDROCARBON PIPELINE CORRIDOR

15.0 SPACING REQUIREMENTS FOR HOUSING PROJECTS I BUILDINGS FROM OIL & GAS WELL HEADS 24

16.0 BUILDINGS WITHIN KOC RESIDENTIAL AREAS 24

16.1 General 24

16.2 Clearances from Underground Services 25

17.0 PROTECTION OF EXISTING SERVICES DURING CONSTRUCTION 25

17.1 General 25

1 Temporary Crossing Points 25

17.3 Pipelines in Casing 17.4 Cased Crossings - Cables 27

18.0 QUALITY ASSURANCE 27

19.0 DOCUMENTATION 28

20.0 APPENDICES 29-36

APPENDIX 1 r=v.e-.....

A: NEW PIPELINE AT CROSSING POINTS WHERE

PIPELINE AT 1000 MM DEPTH 29

CASE B: NEW PIPELINE AT CROSSING POINTS WHERE

EXISTING PIPELINE EXCEEDS 2000 MM 30

FROM FOR STRUCTURE

31

APPENDIX 2

APPENDIX 3 VALVE CLEARANCES FOR HYDROCARBON

APPENDIX 4 CABLE SLACK WHEN CROSSING PIPELINES

APPENDIX 5 CLEARANCE FOR POWER CABLES AND

CABLES 34

APPENDIX 6 PIPELINE ENCASING FOR KOC FIELD

APPENDIX 7 CASED CROSSING OF CABLES: KOC FIELD ROADS AND PIPELINE BACKFILLING 36

ACKNOWLEDGEMENT 37

comments

of 38 REV.3

FOREWORD 131

document "KOC Recommended Practice for the Protection of KOC Clearance Requirements for Buried Pipelines, Cables, Underground Structures, Buildings and Housing Projects (Rev.3)", was revised to remove some ambiguities and duplications from of this RP I final publication of "KOC RP for Plant Layout (KOC-L-028)" has amended as per comment from KOC Insp. & (N&WK) in Dec. '10. 131 It is intended to basic technical information for providing protection clearance requirements between various services to minimize adverse effects

corrosion and improve mechanical integrity I as well as to ensure safe working environment for personnel and property. Refer to KOC-L-028 the minimum 1 recommended for plant layout within and

etc.

This (KOC-L-002), 3, shall supersede its Rev. 2 including previous KOC Standards 381/13 Part-3 "Clearances between buried pipelines, cables and underground structures" and 381/26 "Working clearances for hydrocarbon lines in valve pits/l, which were already withdrawn during publication of 2 of this RP.

This RP does not address the Fibre Optics Cable Networks; and it also specifically spacing between submarine pipelines 1cables.

This RP sets out to following

1. Provide technical guidance, and recommend minimum clearance between buried pipelines, piping, cables, underground structures; and spacing from buildings and housing projects for developing project specifications, with a view to fulfil KOC objectives of HSE requirements as as to uniformity, quality and reliability in an economical manner.

2. Recommend working space for pipelines and piping in valve pits.

3. Recommend minimum spacing required between pipelines for safer and effective maintenance & operation.

Recommend minimum spacing requirements of housing projects and buildings 1 structures from hydrocarbon pipeline corridors and 1 or oil and gas well-heads.

Feedback as well as any comments I suggestions or enquiries to the application of

this Recommended Practice are encouraged and should be directed to:

The Team

(Chairman, Committee)

P. O. 9758, Ahmadi, 61008 State Kuwait

of 38 REV.3

Standards Committee (STC) has the revision (Rev.2) of Recommended to Force of the following members:

Mr. S. Kumar

Mr. A. Unnikrishnan

Mr. N. Ramanathan

Mr. Barun Baruah

Mr. Gopa Kumar

Mr. Shabbir T. Safri

Mr. Ali Zalzalah

63

Standards Standards Major Projects (EFP)

Team . Projects

Insp.& Corr. (S&E) Cons. Networks Team

Leader .61407

Member . 61633

Member Tel. 66960

Member Tel. 71408

Member Tel. 61

Member TeL 61527

Member

of 38 REV.3

1.0 COPE

1.1 This Recommended

underground

1.2 This RP

times facilities.

1 .3 This pipeline

1.4

2.0

a.

b.

c.

d.

2.1 This

a.

c.

d.

e.

2.2 This

Practice (RP) describes basic technical guidelines for the clearances and protection requirements between various new and existing

services and installations, which are considered necessary to the interactions, leading to enhanced corrosion or other

within operational and non-operation areas.

refers to KOC-L-028 "KOC RP for Plant Layout" for requirements of minimum spacing between various KOC services installations (underground and aboveground), which shall maintained at all

for operation and protection within and outside KOC plants

RP

enhanced corrosion.

recommends corridors and

the minimum spacing required between inhabited buildings, and the associated

underground risks due to

However, this RP shall not be applicable to the following:

The aboveground pipe-work within and outside of plant.

Flow lines from well heads and domestic sanitary pipelines within Ahmadi Town.

Submarine pipelines I

optics cable networks.

RP provides recommendations and clearance requirements where new pipelines, piping (metallic or non-metallic) cables are crossing or running in parallel with following existing and I or new KOC services:

Cathodically protected buried pipeline and other services.

Cathodically unprotected pipelines, piping other

power cables, telecommunication and control cables.

rvlE/EW transmission distribution c\",t"rnc (underground or overhead operating at medium and high Voltage.

Buildings and housing projects outside KOC production area. provides minimum clearance I space requirements between the

pipelines within a single corridor for safest maintenance and

of 38

2.3

2.4

3.0

3.1

3.1 .1

3.1

3.1.3

3.1

3.1 .5

3.1.6

3.1.7

Any exceptions or deviations from along their and justifications, be brought to the attention of KOC Controlling Team for their consideration amendments by Team required).

immunity from legal or statutory and requirements. with this RP does not itself

TERMINOLOGY

Definitions

purposes this RP, the following definitions shall apply:

Building

Above ground steel or concrete structures, inhabitant and I or non-inhabitant.

Cables

Power, Communication, Signal/Instrumentation Control Cables installed within and outside KOC operational areas with the exclusion of cables for earthing and cathodic protection.

Clearance

Distance between to edge two items / objects, or between of pipes (flanges) as applicable, in metres (and/or

Roads

asphalted as access ways tracks KOC operational under KOC jurisdiction.

Interaction tests

Tests to determine the severity of corrosion interaction between two buried or immersed structures.

KOC Operational Area

Gathering Centres, Booster Water Manifolds and

crude, and the

Non-operational Area

other KOC areas not covered under the clause 3.1.6 above, but under jurisdiction like KOC Housing and Community

by Tank Injection / Disposal Water

water

of 38

3.1.8 Piping

Network service

Water

underground and aboveground Stations,

facility or

process center such as Centers, Injection I

Disposal Tank Farms, Manifolds.

3.1

of any length frequent for transporting hydrocarbons (liquid or gas), oilyor

water, water products. can run underground and I or aboveground outside areas various and installations.

3,1.10 Right-of-Way (ROW)

Entire width of reserved corridor(s) for pipelines, power transmission roadways etc.

3.1.11 Spacing

Distance centre to centre line of two items or of pipelines.

3.1.12 State Authorities

Kuwait Municipality and Public for Housing

3.1.13 Structure

Steel reinforced box culverts, valve foundations for buildings, bridge etc.

3.1.14 Sub-Surface

Underground structure whose almost at formation level or natural ground.

3.1.15 Utility Buildings

Buildings and I or enclosures for housing generator, air compressor, boiler and fire pumps.

3.2 Abbreviations

Booster Station

Cathodic Protection

of 38 REV.3

KOC Kuwait Oil Company (K.S .) Low

ME/EW Ministry of Energy / Electricity and MPW Ministry of Public Works MOC Ministry of Communications NGL Natural Ground Level QRA Quantitative Risk Assessment UPVC Unplasticized Poly Vinyl Chloride

4.1 Conflicts

In the event of conflicts between this and the referenced or other contractual requirements,

in view HSE concerns.

Standards

4.2

The edition of following standards and codes shall apply:

2.1 National/international Standards

580

API 581

API 2

API RP1102

API 1160

ME 831.3

ASME 831

831.8

ASTM G57

7 1 Part 1

Risk-Based Inspection

Inspection Resource Document

Management of Hazards Associated With of Process Plant 8uildings

Steel Pipelines Crossing Railroads Highways

Managing System Integrity for Hazardous Liquid Pipelines

Process Piping

Pipeline Transportation Systems for Liquid Hydrocarbon Other Liquids

Transmission and Distribution Piping

Test Method for Field Measurement Resistivity the Wenner Electrode Method

Cathodic I-'r''ot",."tl1"\n; Code Practice for Land Marine Applications

of 38 REV.3

BS EN 14161

ISO 15589-1

NACE RP 0169

NACE RP 0177

NACE RP 0286

4.2.2 KOC Standards

KOC-C-005

KOC-C-006

Petroleum and Natural Gas Industries - Pipeline Transpo n system

Petroleum and Natural Gas Industries - Cathodic n of Pi nes n System rt 1 Pipelines

Control Metall

rnal Corrosion on Un rground or Subme ping Systems

M ation of A ing Current and Lightning Effects on Metallic Structures and Corrosion Control ms

E cal Isolation of Cathod Ily Protected lines

ndard for Materials and Workmanship - S on and works

KOC Stand r Concrete Works - M Is and Construction

KOC-C-O Part 1 KOC ndard for Materials and Workmansh Roadways, Paving and Hard ing: Part 1: Flexible Pavement

KOC-G-002 KOC Standard for Hazardous Area CI cation

KOC-G KOC andard for Design

KO -012 KOC Standard for Plant Nameplates and Pipeline M

KOC-L-015 KOC Protection Networks

Recommended

L-027 KOC for

cation,

al Cath ic Pipelines & ping

Diking of rage

KO KOC Recom Practice nt Layout

KO P-004 rt 8 KOC Stand round Piping I Pi ines High Bui

for U

III DOC. NO. KOC-L-002 Page 12 of 38 REV.3II II KOC-P-004 Part 9 KOC Standard for Underground Piping / Pipelines

High Build Polyurethane Coating

38 1 / 1 3 Part 1 Standards Requirements and Regulations for the Protection of KOC Services Part 1: Crossing of Roads and Motorways under Construction

KOC HSE GUIDE LINES

KOC FIRE AND SAFETY REGULATIONS

4.2.3 KOC Standard Drawings

15-14-10 Standard Valve Pits for Pipe Lines

15-14-13 Standard Pipe Sleeves (KOC)

5.0 ENVIRONMENTAL CONDITIONS

5.1 The environment of Kuwait is severe, and must be considered carefully for selection and before procurement of plant and equipment.

5.2 For environmental conditions in Kuwait, refer to "KOC Standard for Basic Design data" (KOC-G-007), which provides the detailed design information regarding the environmental, site and utility supply conditions prevailing throughout the KOC facilities.

6.0 HEALTH. SAFETY AND ENVIRONMENT

6.1 The engineering requirements should meet all the applicable Kuwait EPA regulations & International/National Standards and shall conform to all relevant KOC Health, Safety and Environment Management (HSE MS) procedures deemed applicable to the task / job, with a view to protecting personnel, community and surrounding environment.

6.2 All relevant safety requirements of KOC Health, Safety and Environment Management (HSE MS) Procedures and KOC Fire and Safety Regulations shall be adhered to by all personnel including KOC and Contractors to protect human life, property and surrounding environment while performing the works within KOC areas.

13 of 38 REV.3DOC. NO. KOC-L-002

7.0

7.1

or structures, in the design.

7.1.1 In addition to enforcement of requirements in clause 6.0 of this all precautionary measures and safeguards in this RP shall

applied:

a. when new metallic and non-metallic pipeline I crosses over or converges with the underground pipelines and piping.

minimum clearance be maintained in accordance with Appendix 1 RP.

b. when crossing the existing pipelines; and power I control I telecommunication cables shall meet the requirements as given in Appendix 2 of this RP.

7.1.2 Newly buried pipelines, piping and shall not run parallel to existing services they maintain clearance. Safe any interaction shall be considered where enhanced corrosion conditions or

field or heavy electrical currents are present.

7.1.3 comes closer to or crosses over the clearance or insulation

7.1.4 Where applicable as in above clauses 7.1.2 & 7.1.3 of this RP, should be further considered and shall brought to Corrosion for guidance and

the attention

a. Evaluation of present condition of appropriate

b. protection based on carried out.

protective data and

c. Reviewing and intensity of existing cathodic protection system.

d. Reducing of induced AC current to presence of high voltage.

e. Soil to gradient difference at locations.

f. Presence copper conductor earthing system or its i.e. by plates. The use of copper plates for earthing

purposes prohibited near cathodically protected facilities and if already existing, shall be replaced by zinc anodes.

g. Electrical continuity cathodic protection and bonding.


h. Electrical structure.

isolation required from adjacent pipeline or metallic

i. Reducing possible sources of interference any galvanic action due to presence stray currents, fields or radio

7.2

Where underground structures or pipelines are in a close proximity, tests shall carried out in accordance with 7361 1.

7. 2 The maximum negative potential value (pipe I structure-to-soil) permissible shall be -1 V (vs.CU/CUS04l instant-off for coated structures as "KOC

External Cathodic Protection for Underground Steel Pipelines & Piping Networks" (KOC-L-015J, unless cathodic disbondment test approved by KOC relaxation of such limit. maximum pipe I structure-

potential permissible for uncoated structure be Cu/CuS041 instant-off.

7.2.3 maximum positive potential change at any part secondary structure resulting from interaction should not exceed +20 mV as per BS 7361 1. The potential change higher than +20 mV shall require other considerations of improving the quality of insulating coatings, reviewing remedial bond or increasing the spacing between structures as appropriate.

7.3

7.3.1 All buried pipelines be installed below Natural Ground (NGL). Minimum depth of soil cover shall not be than 1000 mm from ground level to the top of pipeline(s).

7.3.2 In areas where soil erosion may occur or at locations where future grading is expected, i.e. roads or ditch crossings, applicable protection such as sleeves, culverts, anchor-block, plantation of grass, water run-off application bituminous-sand layer on ground should be considered.

7.3.3 Particular care taken where ground water level shall include

7.3.4 The of cyclic conditions on soil resistivity and the suitability protective coating material shall be reviewed, where the pipes are buried at more than 1000 mm from the ground level.

in

requirement as applicable.

in areas drawings

15 of 38 REV.3

7.4

7.4.1 Safety measures shall be provided installation, maintenance, operation and testing valves / I on underground piping, and pipelines inside the valve drain pits, and similar structures, by ensuring adequate clearance I spacing for working and maintenance conditions. shall equally be applicable to other hydrocarbon installations in pipe and piping channels.

7.4.2 Where areas are as hazardous in with "KOC Standard for Hazardous Classification" no source of

or be allowed the equipment is approved and certified for its location from a recognized and KOC approved certifying authority.

7.4.3 Safety measures and special attentions be required for identification underground power in with KOC and

Regulations; and all necessary protection shall be taken while installing new underground services in KOC operational and non-operational areas. Particular care shall be while locating and identifying high voltage ME/EW cables.

7 Where coming in close proximity to housing I buildings, additional be given of suitable for pipe-work

in accordance with 14161, ASME 1 or ASME 1.8.

7 5 Increased thickness, extra protection constant monitoring should introduced when pipelines transporting hydrocarbon products pass to occupied buildings. U all circumstances, design requirements as per location given in BS EN 14161, ASME 1.4 & ME 831 shall be provided for additional safety measures.

7 6 During the design and installation of pipelines when passing through a lowest point be where water and condensate may

become stagnant and applicable, a procedure shall implemented for constant draining, flushing out, pigging and other maintenance operations.

7.5

7.5.1 Wherever KOC pipelines, power I telecommunication cables, and underground structures interfere with the services KNPC, MOC, IVIE/EW, MPW or other authorities, minimum clearance requirements shall be decided on mutual coordination in accordance with prevailing regulations authorities. Prior agreement shall be obtained from the concerned authorities

initiating any construction

of 38 REV.3

the minimum distance(s) from engineering norms on historical information and Under site constraint specified, minimum

shall not reduced

7.5.2 KOC has the right to for

proven engineering norms are applied.

8.0 PROTECTION REQUIREMENTS

8.1

8.1.1 Where an impressed electrical current field pipelines should be to ensure

points of maximum should

Where means of current

shall be applied.

8.1.2 To avoid interference currents ground bed for CP and unprotected structures, the minimum clearance shall be maintained; and where necessary, ground should be re-Iocated.

8.1.3 An clearance between all underground and / or structures shall maintained to reduce interaction.

8.1.4 Under all conditions the electrical continuity cathodically protected systems be maintained by controlled bonding across non-welded joints (flanges,

valves, insulating joints, blinds etc.). to clause 7.13 of KOC-L-015 for further

8.1.5 Electrical isolation shall be maintained for cathodically unprotected pipeline / structures from cathodically protected as per clause 7.14 of KOC-L015.

8.1.6 Pipeline casings wherever used to protect carrier should electrically isolated.

8.1.7 When cables or other services are crossing over existing cathodically pipeline, extra care shall be to avoid any damage to coating.

8.1.8 A minimum 1000 mm horizontal clearance should maintained for pipelines running in a single corridor for access, operation and maintenance as shown in 5 of Appendix 1 of this RP, unless otherwise specified.

8.1 Consideration shall be given for an isolation of pipeline passing through critical and areas.

for

be determined flow through sufficient

9.1.1 new

maintaining vertical point

Page 17 of 38

9.0

9.1 Pipelines Crossing Each Other

than 1000 mm over the existing pipelines, run below existing pipeline by

1000 mm as shown in Figure 1, Appendix 1 of this

9.1.2 Where this clearance of 1000 mm cannot be maintained, a minimum clearance of 300 mm shall provided at crossing points between bottom

the existing pipeline and top of new pipeline, provided a 75 mm thick concrete slab of Grade 0 / strength class as per KOC-C-006 is installed at centre clearance, and shall be properly supported on either of pipes. The slab be extended 1000 mm on either side from the outer diameter of new and existing pipeline as shown in Figure Appendix 1 of this

9.1.3 Where depth of is 2000 diameter new pipeline, then it should run provided the required clearance I spacing maintained as shown in Figure 3, Appendix 1 this RP.

9.1 of pipeline is 1300 mm plus (+) the of new then it will run above the existing pipeline provided a 75 mm thick concrete slab Grade 0 I C30 as per KOC-C-006 is installed at centre of clearance, and shall supported on either sides of

. The slab shall extend 1000 mm on side from the outer of new and pipeline as shown in 4, Appendix 1 of this

( +) the

cover

9.2

9.2.1 Generally when running in a minimum horizontal clearance of 1000 mm shall be maintained between cathodically protected and I or unprotected pipelines for system integrity and easy operation and maintenance.

9.2.2 This separation distance can be reduced under constraint conditions, provided interference and soil analysis are carried out to ensure that the pipelines or

structures will not be subject to a positive charge of + mV or higher at any point and time.

9.2.3 However in any case, new cathodically protected underground pipeline shall maintain a horizontal clearance I separation distance of minimum 1000 mm from existing underground structures as shown in Figure 1, Appendix 2 this RP.

9.2 Where separation distance between cathodically protected and unprotected shall fall than 1000 mm, approval from KOC Controlling is needed as a special case.

REV.318 of 38

9 .5 criterion 9.2.4 above to KOC approval, the I can be reduced only after considering the

a. n surveys II carried out to ensure the adequacy of all arrangements, where the and other structures would

15 "KOC

pipelines of BS

b. on the periodic inspection, change in soil behaviour under low conditions and other operational environmental additional current should be induced where provision is available.

c. In cases where an interline bond is established cathodically pipelines and resistive bond

design installed at locations along with test points to proper control and monitoring.

d. interline bond shall be by an insulated copper conductor, adequately sized to carry a fault current that may flow but under all circumstances, the conductor I not be less than mm2 No copper conductor shall have contact with the

e. shall be suitably from mechanical or other damages. not be without any test point and shall

9. 6 The minimum clearance between buried pipelines other underground structures, both cathodically un-protected, shall not than 1000 mm horizontally.

9. 7 The installation of new insulation or improving the standard of existing one on the cathodically unprotected pipeline or metallic structure shall be considered in accordance with the requirements BS 7361. Where applicable, the insulation shall to a minimum length of 1000 mm away from the outer diameter of of the crossing point or convergence.

9.2.8 Deleted. 131

to finalize

Page 19 of 38 REV.3

10.0

10.1 The minimum working clearances between valves I fittings and valve-pit walls all valve-pits and similar enclosures shall be in with Appendix 3 of this RP, which should conform to latest revision of KOC Standard Drg No.1 14-10.

Where several pipelines each having and fittings are to

common pit or enclosure, the minimum working clearance

valve items shall be decided on the of larger diameter

the overall of valve pit.

1 2

10.3 The minimum clearances between and other obstructions shall be maintained as Appendix 3 Where the future are expected, the be increased to cater for

and modifications.

10.4 The minimum as specified in Table of Appendix 3 this should provide adequate space for routine maintenance and repair works such as flange line cutting and welding. Similar shall be applicable for Drip in KOC gas lines.

as appropriate, where some such as corrosion monitoring, iron probe withdrawal

an are provided.

1 5

extra may require deeper pits having pipe at multiple levels where the supports of heavy are required in addition to certain covers and ladders", The specifications drawings shall incorporate the additional as appropriate.

1

11.0

11.1

11.1.1 cases, where the pipelines (cathodically protected and I or unprotected) or containment upper point is 1 mm or more ground level, the low or telecommunication cables shall run in

above the pipeline to ensure a minimum clearance of 750 mm between and ground level and between cable duct and point of the or 2, Appendix 2 of

11.1.2 In cases, where the buried or containment upper point is less than 1 mm below ground level, low voltage cable or telecommunication

shall be run in with the upper point of the duct at a minimum of 300 mm below level of the pipe or the For details

3, Appendix 2 RP.

of 38 REV.3

11.1.3 Where telecommunication cables are installed in the vicinity of a cathodically care shall be taken to avoid any Inpipeline, particular

horizontal separation clearance shall not less than 1000 mm

11 .1 .4 A suitable length "cable slack" for low voltage cable and telecommunication shall be provided at each point of crossing over pipelines. The acceptable

means of meeting this requirement is given in 2, Appendix 4 of this RP.

minimum bending radii of the cables. running in parallel to pipelines be avoided.

11.1.5 Cable runs

11.1.6 Wherever a low voltage crosses a buried pipeline in any special other than the general cases mentioned in clauses 11.1.1 to 11.1.4 above, the minimum clearance to be maintained, shall be to KOC

11.1.7 Ducts for protecting cables can be PVC / Metal/Concrete either insulated and be speci'fied by KOC as applicable in theresistant or load

11.2 Pipelines and Electrical Power Cables Operating at 3.3 kV and 11 kV

11.2.1 supply operating at 3.3 kV and 11 kV shall be run in a duct below the buried pipeline(s), unless otherwise authorised by KOC. These power cables shall be installed by maintaining the minimum vertical clearances from pipelines at as in Table I and in accordance with Figure Appendix 2 of this

Table I : Minimum Clearances between Pipelines and Cable Ducts

Pi elines and Cable Ducts 3.3 kV 500 mm

2 11 kV 1000 mm

11.2.2 A length slack power shall be provided at each

point of over pipeline(s). The acceptable means of this

requirement should be in conformity Figure 1, Appendix 4 of this

runs shall ensure that minimum bending radii of the are met.

11.3 Clearances Between KOC Services and ME/EW Medium & High Voltage Cables

11 .1 Where KOC pipelines, cables other to installed the of underground ME/EW medium and high voltage power cables, prior

permission shall be taken from M by coordination both authorities commencement of any work.

DOC. NO. 21 of 38 REV.3

11.3.2 In general, as per ME/EW stipulations, the medium and high power shall be from other by the following minimum recommended separation distances :

a. Horizontal Clearance: 3.0 m; b. Vertical Clearance : 1.0 m.

These minimum clear distances should be measured from outer edges the pipe-way or corridor.

11.3.3 Extreme care shall be exercised to locate ME/EW's existing underground power during or of other services; in any

situation, the identification marks and protection ME/EW power cables shall not be disturbed or . Any marker, if removed for excavation, shall placed back properly.

11.3.4 method of protection to provided for a service (power I telecommunication cable, pipeline, structure or building) adjacent to ME/EW underground power operating at various levels, decided as per regulations and mutual agreement between and authorities ..

11.4

11.4.1 Extreme care shall be and permission the concerned authorities (KOC & ME/EW) shall taken prior to commencement of any pipeline work in the vicinity of overhead power maintained by KOC or

between any buried and poles / structures of up to 11 kV shall not be less M.

11 3 KOC pipelines shall in the right-of-way ME/EW overhead lines any The right-of-way for

overhead power transmission lines as by shall considered for planning purpose, shall not be given as

a. 11 kV 20 M b. 33 kV 25 M c. 40 M

11 However, actual right-of-way for ME/EW overhead power transmission lines and the clearance requirements shall be obtained from ME/EW on a case by case basis considering installation KOC near any

power

11 5 Where underground pipeline(s} crosses overhead power transmission line(s}, it shall be preferably be at right angles. In unavoidable situation, the horizontal angle of intersection shall be within 70 to 110 to the line, the crossing at right angles is not practical

of 38DOC. NO. KOC-L-002

12.0 CLEARANCE REQUIREMENTS BETWEEN ELECTRICAL POWER CABLES AND TELECOMMUNICATION CABLES

12.1 A minimum of 1000 mm between buried electrical power cables and telecommunication shall maintained to avoid interference to the communication due to proximity power and induction high voltage into the telecommunication

12.2 Power and telecommunication cables following routes have a minimum horizontal separation of 1000 mm in general; cables parallel runs more m in length, shall maintain the minimum horizontal separation 1500 mm as shown in 1, Appendix-5 of RP.

12.3 Where it is for a power cable to cross a telecommunication cable or vice versa, it shall cross horizontally as near to right angles as practicable.

1 Telecommunication shall maintain a minimum vertical clearance of 500 mm at crossings from single-core or multi-core power of rating up to 11 kV. Refer to 2, Appendix-5 of this

12.5 In exceptional situation, where the above specified clearance cannot achieved at crossings, with the prior permission of KOC, it may reduced to a minimum of 150 mm by providing a mm thick concrete of 0 I strength class C30 as per KOC-C-006 with an adequate width of minimum 2000 mm in-between the power cables and telecommunication cables.

The concrete slab shall be sized to overlap the power cables telecommunication cables by a minimum of 1000 mm on either side.

13.0

13.1 The risk analysis shall used as a guideline before deciding the locations of buildings at process against potential hazards such as release of explosive and toxic explosions and fire. guidelines shall be used in accordance with API 580 API 581 assessment inspection.

13.2 overall plant layout be on the of such factors as safety, construction, operation, maintenance and future expansion, taking into account its topography, natural slopes or surface for natural

plant layout shall also assessed that in the event of toxic, hazardous flammable liquid spillage, the liquid not flow towards other process

equipment or facilities, but flows safely towards designated containment system or facilities.

13.3 Open spaces shall be provided adjacent to

buildings, laboratories, workshops and

storage on its types, categories and safety

23 of 38 REV.3

13 For spacing requirements of various buildings at process associated facilities, reference should be made to "KOC Recommended Practice for Plant Layout" (KOC-L-028) for detailed information.

13.5 case the minimum spacing recommended in KOC-L-028 can not be met for a unit due to space and other it should risk assessment studies additional factors in of buildings and facilities. The provisions for extra precautions constant monitoring should taken into account before finalization of locations.

14.0 SPACING REQUIREMENTS FOR HOUSING PROJECTS I BUILDINGS NEAR HYDROCARBON PIPELINE CORRIDOR

14.1 For deciding any to be used for inhabited buildings I housing projects within the proximity KOC and network condensate and crude oil pipelines corridor, a close coordination is between all concerned authorities like Ministry of Public Works, Kuwait Municipality and Public Authority for Housing Welfare.

14.2 A minimum safe distance shall be established based on risks evaluation, considering design and operating parameters hydrocarbon carrying pipeline and worst weather condition. An appropriate and proven software of dispersion modelling shall be with pipeline parameters to determine such safe

14.3 However in to meet high HSE concerns in KOC, a safer and distance 500 metres be maintained for the nearest location proposed or existing private I facilities from KOC or proposed pipeline I transit line corridors, if the intervening space protections as KOC-L-028 "KOC RP for Plant Layout".

14.4 The quantitative risk analysis (ORA) shall also consider the prevailing conditions of existing pipelines; a review shall carried out in accordance with BS EN 14161 and I or other applicable codes for the dangers posed to public

and property due to close proximity.

14.5 In case where the above distance of 500 m can not maintained, by means of analysis if the minimum distance proposed location be derived than 200 metres as ORA it shall in no case be less than 200 from the edge of pipeline or from existing corridor. In

cases proper precautionary and protection measures including constant monitoring shall be adopted with the following:

a. Statutory warning signboards with danger shall be at every 100 m intervals along the pipeline corridor for at least 500 m distance on the either of proposed inhabited buildings.

under ground

housing projects minimum distance shall

II 24 of 38 REV.3DOC. NO. KOC-l.-002

b. The pipeline corridor shall protected with necessary barrier and/or to ensure that no encroachment by residents

at any time will occur.

corridor shall be constant monitoring of the facilities I

, where the residential projects are coming in the vicinity.

c.

carrying gas shall constructed and +"'''+0'; with public in mind, where

d. are located in areas of higher

population as per location in ASME B31.8 and 14161; and additional factors are considered in to

metering stations drain pits along underground shall be fenced with 2.8 m lockable gate, shall be fully

high barbed with

passers-by at all

e.

15.0 SPACING REQUIREMENTS FOR HOUSING PROJECTS I BUILDINGS FROM OIL & GAS WELL HEADS

a minimumFollowing metres shall for any

measured from their boundary fence. housing projects from

500

16.0

1 General

16.1.1 Utility services of water, telecomm, power, and domestic are having underground network in KOC area. Therefore, it for extreme caution while building I constructing or excavating any in Ahmadi.

1 1.2 All stringent measures, as precautionary statutory warnings, signboards and should be installed during all types of constructions and excavation works. Possible failure to any shall be avoided due to construction activities.

16.1.3 Based on the category of flammable and toxic pipeline(s) and population density along buildings shall as per BS EN 14161.

16.1 laying a new in the vicinity of commercial I industrial enterprises, the rule of

in 14.5 of this

passing through area or vicinity shall be clearly marked and / or flagged prior to the commencement of

on or heavy vehicle,

within 5 metres from the

within 5 metres from

Page 25 of38

16.1.5 consideration as defined in 14161 shall applicable if the spacing requirement cannot be met, and option of re-routing of MAIN

pipeline shall also considered.

16.2 Clearances from Underground Services

16.2.1. A minimum of 500 mm shall be provided for telephone, cable ducts storm and drain water and gas lines.

16.2.2 A minimum of 150 mm shall be provided any telephone installations and foundations of supply poles/pylons, road lighting poles & masts, traffic signs & signal poles, gantries and overhead supports.

17.1

1.1 All and construction

11.0

1 pipelines

any construction work or any operation.

17.1.2 A 10 m outermost shall not

17.1.3 Only hand excavation shall be permitted services on side of this zone.

17.1.4 Special shall be from KOC of the operations in be issued

However long pipelines if KOC to use excavation as case, slit by hand shall be done for every 100 m on runs and 30 m to 50 to establish exact of any pipelines.

17 1.5 No part of any plant, mobile or any equipment or crane shall brought 15 m of any overhead power lines unless all necessary safety including I work permits from the concerned authorities are

17.1.6 All general requirements of protection as specified shall strictly to at all times, by Contractor. These shall be subject to further review on case-by-case

each case, for other mode or any other designated zone. In such cases, work permit shall

stating the other mode of excavation or any other operation.

26 of 38 REV.3

17.2 Temporary Crossing Points

17.2.1 U the specifies at time of temporary crossover KOC pipelines during construction period to facilitate from existing roads, the following precautions shall be

a. inspection measures to

existing the same for KOC

plan and methodology on the line(s) I advising the protection

b. The Contractor adopt the protection after KOC written approval. shall carried out strictly in accordance with KOC procedures and "KOC for Materials Workmanship - Site Preparation and Earthworks" (KOC-C005).

17. 2 As appropriate to the involved in crossing over existing pipeline(s), a strict compliance and approved KOC procedures shall be observed during all movements.

17.3 Pipelines in Casing

17.3.1 Pipelines installed in a shall be properly and electrically insulated from the casing pipe. The casing shall be cathodically protected to prevent corrosion and to integrity of casing strength.

1 2 inside diameter pipeline shall not be

of shall such that during installation, coating I nor any load from casing pipe shall be transmitted to the carrier pipeline.

17.3.3 The carrier pipe shall be held of the casing or sleeve by means of properly designed no load shall transferred to the carrier Multiple pipes within one casing or one sleeve shall not be

17.3.4 The casing pipe shall be properly at each end to prevent any of moisture, water or foreign and shall be with vents at each end.

1 5 The diameters of casing I sleeves for pipes with or without shall be provided for KOC review in with KOC Standard for "Standard Pipe Sleeves" (15-14-13). Trenched and trench less construction

considered installation on the basis of practical requirement.

1 .6 In case open trenched crossing where the minimum cover is not installation of casing at larger or heavier wall casing pipe shall be adopted.

of 38 REV.3

17.3.7 crossing highways I roads shall meet the design and construction of nominal thickness of pipe for crossing and installation in

with API 1102 and KOC Standard 381 /13 1 box

17.3.8 Pipelines Road Crossing

a. Pipelines crossing under asphalted field roads shall encased, and shall laid with the minimum soil cover as given in II of this

installed maintaining in accordance Appendix 6 of this RP.

b. casing pipes shall be extended for a minimum length of 1500 mm from the edge of drainage channel for field roads on both of roads.

roads are and bends are not for a 5 metres from of road and / or casing.

c.

Table II:

51. No. Location of Casing Pipe under Field Road

1 i

Under Field Roads 1200 mm (4 ft) II 2 Outside the Roadway pavement but

within Right of Way of Roads 1000 mm (3 ftl

17.4 Cased Crossings - Cables

17.4.1 Where underground are to be installed across field protected by casing cover

casing to the road

with the as given in Table III of this RP.

shall from

51. No. Location of Casing Pipe under Field Roads Minimum Soil Cover

1 Under Road surface 1200 mm (4 tt) 2

Under all other surface in the Right of the Way of Roads 1000 mm (3 ftl

17 2 UPVC pipes encased in not less than mm thick concrete be used as shown in Appendix 7 this RP for of cables field

the

19.3 documents (texts, the form

of Microsoft Word, in approved and widely

in

DOC. NO. KOC-L-002 II Page 28 of 38 REV.3

All components be designed, inspected and tested under the

shallof of a documented quality control system. For general

requirements of sleeves, refer to KOC drawings.

18.0

The Contractor shall a quality system on ISO 9000 of standards to the requirements of this Recommended Practice.

Contractor shall demonstrate compliance by providing a copy of the accredited certificate or quality manual. Verification of quality system is normally part of pre-qualification therefore, not detailed in the core text Recommended

19.0

19.1 correspondence, written information in

sheets, drawings, or any English language. In case of dual

one language

19.2 All dimensions, units of physical constants etc. unless otherwise sizes to be generally

in SI in

sheets, drawings, etc.) shall be the approved formats

and Auto Cad). All calculations shall software(s) agreed upon by KOC.

20.0

Appendix 1 to 7


APPENDIX 1

CASE-A: NEW PIPELINE AT CROSSING POINTS WHERE EXISTING PIPELINE LAYS AT 1000 MM DEPTH

w u ~z

o => ~ g ~ L5 ~--1 ~u

O.D. OF PIPE

-----..L

~ NEW PIPELINE

FIGURE 1 MAINTAIN 1000 MM CLEARANCE

, GROUND LEVEL

~t= C


APPENDIX 1 (contd./) CASE- B: NEW PIPELINE AT CROSSING POINTS WHERE EXISTING

PIPELINE EXCEEDS 2000 MM DEPTH , GROUND LEVEL ~

o

0 ~~0 0 0::D~

~ Z::iO w OF PIPE U z ~ ~ NEW PIPELINE 0 OU 0 ~::iO0 o=> ~:! tii~

-\ __ _~G_P~E~ __ + FIGURE 3 MAINTAIN 1000 MM CLEARANCE

, GROUND LEVEL

t NEW PIPELINE 0.0.

OF PIPE

CONCRETE SlAB "'=:::==:::Z:Z::;::I==:::!:::

________

---


APPENDIX 2

CLEARANCE FROM PIPELINE FOR STRUCTURE AND CABLES

, GROUND LEVEL

EXlsnNG UNDERGROUND STRUCTURE

~ NEW PIPELINE

FIGURE 1 CLEARANCE FROM EXISTING UNDERGROUND STRUCTURES

,

0--:' U")~ r----'--~ DU-C-T-~___.,r--------------~=CA'-"'B=LE=____I~

~ PIPELINE ~PIPELINE FIGURE 2 CLEARANCE FOR LOW VOLTAGE AND TELECOMMUNICATION CABLES AT

CROSSING (WHERE THE DEPTH OF PIPES IS MORE THAN 1250 MM)

GROUND LEVEL

o ::i l() -r--~

FIGURE 3 CLEARANCE FOR LOW VOLTAGE AND TELECOMMUNICATION CABLES AT CROSSING (WHERE DEPTH OF PIPE IS LESS THAN 1250 mm)

PIPELINE PIPEUNE

~ MIN. CLEARANCE 500 FOR f- IMIN. CLEARANCE 3.3 kV 1000 FOR 11 kV DUCT~ I~ _____________ POWER CABLE

FIGURE 4 CLEARANCE FOR 3.3 kV/11 kV POWER CABLES AT PIPELINE CROSSING

Note : All dimensions are in mm


APPENDIX 3

VALVE PIT CLEARANCES FOR HYDROCARBON LINES

NOTES: 1. DEPTH AND COVER REQUIREMENTS OF THE

VALVE PIT AND SEAL DETAILS DEPENDS ON THE PARTICULAR INSTALLATION AND ACCORDINGLY ARE NOT DEFINED.

2. CONCRETE BLOCK SHOULD BE PROVIDED FOR HEAVIER AND LARGER VALVES INCLUDING 16" DIAMETER AND ABOVE .

3. DRAIN SHOULD BE PROVIDED FOR SPILLAGE OR RAINY WATER TO SOAK AWAY AREA.

4. MINIMUM DIMENSIONS "c" ARE FOR ANSI ClASS 150 WELDING NECK FlANGES. ADJUST DIMENSION "Cn FOR HIGHER FLANGE RATINGS.

5. N.T.S. = NOT TO SCALE. 6. ALL DIMENSIONS ARE IN MILLIMETRES

*A = HORIZONTAL ACROSS PIPELINE *B = VERTICAL BELOW PIPELINE *C = HORIZONTAL ALONG PIPELINE

ANCHOR FLANGE OR 20 mm THK. PLATE COLLAR

',' ''!: ' ........ .

".,

C , '.

J----

REV.3DOC. NO. KOC-L-002 33 of 38

APPENDIX 4

I I I -----+r+

I I

3M RADIUS (MIN.)

FIGURE 1

LENGTH OF CABLE IN lOOP A-8 TO BE DISTANCE C-D PLUS 5 METRES

FIGURE 2

Note: All dimensions are in mm


APPENDIX 5

CLEARANCE FOR POWER CABLES AND TELECOM CABLES

, GROUND LEVEL ~'0&..,~~,,

~ o w II) 0

. r-

1000 UPTO SOM LENGTH OF CABLE 1500 FOR> SOM LENGHT OF CABLE

(REFER TO CL. 12.2 OF KOC-L-002)

-~-~POWER

CABLE ~ TELECOM.

CABLE

FIGURE 1 HORIZONTAL SPACING BETWEEN POWER & TELECOMMUNICATION CABLES

, GROUND LEVEL

:J:

::::E f0e...

Ow w

II) 0 ~-' r--,CD :Z ~


APPENDIX 6

PIPELINE ENCASING FOR KOC FIELD ROADS

MINIMUM DEPTH BELOW DITCH

DRAINAGE DITCH

VENT.

CASING MINIMUM DEPTH BELOW SURFACE OF PAVEMENT

CASED CROSSINGS (TRENCH LESS INSTALLATION)

MINIMUM DEPTH DRAINAGE DITCHBELOW DITCH '{QiL

u........,-~r1-i ________________ _l

~END SEAl "'-CASING MINIMUM DEPTH BELOW SURFACE OF PAVEMENTCARRIER PIPE

CASED CROSSINGS (TRENCHED INSTALLATION)

Note: 1. All dimensions are in mm 2. Refer to Standard KOC Or9. No. KOC-l0-13 (latest)

of 38 REV.3

APPENDIX 7

*'--'

0 0 0

0:::: 0 0 0 N

75mm ENCASEMENT

FIGURE 1

DEPTH OF 1000 NOT_----, THIS

OR GROUND LEVEL

----..

N W

6 Z 0 I-0:::: W u... W(f) 0::::

(6") DIA DUCT (MIN.) INSTRUMENT CABLE

POINT

FIGURE 2

Notes:

1. All dimensions are in mm 2. Minimum depth for soil cover over casing pipes/ducts shall be as per clause 17.4.1 of KOCL-002

OC. NO. KOC-L-002 REV.337 of 38

This has been nrn",, by the following:

Mr. A/Redha AI-Haddad Mr. Mohammad Emam Mr. Kumar Mr. A. Unnikrishnan Mr. Khalaf Mr. N. Ramanathan Mr. Ali AI-Failakawi Mr. Daniel Pino Mr. Abdul AI-Shamari Mr. Khalid AI-Ahmad Mr. Abdul Akbar Mr. Moataz Khalaf

Standards Technical Committee consisting of

Standards Team Chairman & Corr. (S&E) Deputy Chairman

Standards Member Standards Team Design Team Export Facilities Member

System Member Utilities Team Member Insp. & Corr. Team (N&WK) Gen. Team Member Project Mgmt. Team (NK) Member Information Team Member

The draft this RP had been circulated to KOC User Teams review and responses were from following:

ENGINEERING GROUP

(TS)Team Construction

Leader Export Fac. Projects Team Leader Support

INDUSTRIAL SVCS. GROUP

Leader & Corr. (S&EK) Team

AHMADI SERVICES GROUP GAS MGMT GROUP (SEK)

Project Leader Consumers Networks

Leader Utilities Team Gas Opns.

Team . Svcs. Leader Opns. Tech. Svcs.

Leader Opns. Tech. Svcs. Leader Svcs.

Team ...,..,,,,\1,,",, Prod.Opns.

Leader Maintenance

DOC. NO. KOC-L-002 II Page 38 of 38 REV.3

HSE GROUP

Team Leader H&E Leader HSE (NK)

Team Safety

HSE GROUP (WK) HSE GROUP (SEK) HSE (WK) Team Leader (SEK)

Task Force Responsible for this Recommended Practice

The Technical Committee (STC) has entrusted the revision of Recommended Practice to the Task No. 1 comprising of the following

Mr. S. Kumar Standards TF Leader Tel. 61407 Mr. A. Unnikrishnan Standards Team Member Tel. 61633 Mr. N. Ramanathan Major Projects Member 66960 Mr. Barun Baruah Member .71408 Mr. Gopa Kumar Gen. Projects Team Member . 61 Mr. Shabbir T. Insp.& Corr. Team (S&E) Member . 61527 Mr. Ali Zalzalah Cons. Networks Member Tel. 363

Koc l 002 Revision 3

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