03B Damen-Electrical Spec

DAMEN SONG CAM SHIPYARDS HAI PHONG CITY

Part B: Electrical Installation

Damen Song Cam Shipyard Company 06 March 2012 M&E Specifications RHV project: 1368

SPECIFICATIONS

Damen Song Cam Shipyard Factory 08 March 2012 M&E Specification: Electrical Installation P a g e | 2

Document title Damen Song Cam Shipyard Project M&E Specifications

Document short title Electrical Installation Status Final Project name Damen Song Cam Shipyards Factory

Project number RHV-1368 Client Damen Song Cam Shipyard Company

Attn: Mr.Gerrit Jan Van Ommen; Mr. Nguyen Tri Dzung

Reference 1368/KS/HCMC/Specs/001 Approved by Mr. Meindert Wiersma Date/initials approval 10th January 2012

SPECIFICATIONS


Contents Page

1 FUNCTIONALDESCRIPTION 13

1.1 INTRODUCTION 131.1.1 General 131.1.2 Qualityandreliability 131.1.3 GeneralRequirements 13

1.2 STANDARDS&REGULATIONS 141.2.1 Electricalinstallations 14

1.3 DESIGNCRITERIA 141.3.1 General 141.3.2 Climateconditions 141.3.3 Performancesforthebuildings 14

1.4 ELECTRICALINSTALLATIONS 151.4.1 Centralelectricalprovisions 151.4.2 LoadEvaluation 161.4.3 Powerdistributioninstallation 161.4.4 Lighting 191.4.5 EarthingInstallation 191.4.6 Lightning 201.4.7 Communicationinstallations 201.4.8 Protectioninstallations 201.4.9 Transportinstallations 21

2 GENERALREQUIREMENTSFORELECTRICALWORKS 21

2.1 GENERAL 242.2 EXAMINATIONOFSITEANDDRAWINGS 252.3 PERMITS,FEESANDINSPECTIONS 262.4 CONTRACTDRAWINGS 272.5 SHOPDRAWINGS,BUILDERSWORKDRAWINGANDMATERIALSUBMITTALS 282.6 RECORD(ASBUILT)DRAWINGS 302.7 OPERATIONALANDMAINTENANCEMANUALS 312.8 TEMPORARYSERVICE 322.9 COOPERATION 332.10 EXISTINGWORKANDEQUIPMENT 342.11 SUPERVISION 352.12 CLEANING 362.13 ACCESSIBILITY,ACCESSPANELSANDDOORS 372.14 CONTRACTORSRESPONSIBILITY 382.15 HIGHVOLTAGENETWORK 392.16 AUTHORITIESAPPROVAL 402.17 REGULATIONS 412.18 DEFINITIONS 422.19 PHASEIDENTIFICATION 432.20 VOLTAGEDROP 442.21 TELECOMMUNICATIONSINTERFERENCE 452.22 SEGREGATIONOFSERVICES 462.23 BUILDERSWORK 472.24 FOUNDATIONBOLTSANDSUPPORTS 48

SPECIFICATIONS


2.25 DESIGNANDSTANDARDISATION 492.26 MATERIALS,SHOPDRAWINGSANDWORKMANSHIP 502.27 SAMPLES 522.28 STORAGEOFPLANTANDEQUIPMENT 532.29 PAINTING(ELECTRICALPLANTANDEQUIPMENT) 542.30 LABELS 552.31 INSPECTIONANDTESTSATMANUFACTURERSWORK 562.32 TESTINGANDCOMMISSIONINGATSITE 572.33 SYSTEMACCEPTANCE 582.34 CORRECTIONAFTERCOMPLETION 592.35 GUARANTEES 602.36 MAINTENANCE 612.37 SCHEDULEOFMANUFACTURES 62

3 MVSWITCHGEAR 65

3.1 SCOPE 663.1.1 General 663.1.2 Equipmentcovered 663.1.3 Specificrequirements 66

3.2 APPLICABLESTANDARDS 673.2.1 IECStandards 673.2.2 Otherstandards 683.2.3 Localstandards 683.2.4 EMCdirective 68

3.3 LOCALCONDITIONS 693.3.1 Tropicalclimates 693.3.2 Altitude 69

3.4 DESIGNCONSIDERATIONS 703.4.1 General 703.4.2 Ratings 703.4.3 Systemvariation 703.4.4 Performancerequirements 703.4.5 Temperaturerise 70

3.5 CONSTRUCTIONREQUIREMENTS 713.5.1 Internalarrangement 713.5.2 Housing/Enclosure 713.5.3 InterchangeAbility 723.5.4 Anticondensationprecautions 723.5.5 Arcingfaults 723.5.6 Insulation 723.5.7 Insulationlevel 723.5.8 Busbarsystems 723.5.9 Compartmentsandpartitionsetc. 723.5.10 MVswitchingdevices 723.5.11 Terminals 753.5.12 Isolatingfacilities 763.5.13 Protectivedevices 773.5.14 Earthing 833.5.15 Ratingplatesandnameplates 843.5.16 Finishing 843.5.17 Erection 85

SPECIFICATIONS


3.5.18 Toolsandtestingequipment 853.5.19 Spareparts 85

3.6 BATTERY/RECTIFIERUNIT(IFREQUIRED) 863.7 INSPECTIONANDTESTING 87

3.7.1 General 873.7.2 Routinetests 873.7.3 Typetests 883.7.4 Specialtests 883.7.5 Siterequirements 89

3.8 PACKINGANDSHIPMENT 913.9 DATAREQUIREMENTS 92

4 TRANSFORMERS 92

4.1 SCOPE 924.1.1 General 924.1.2 Transformerscovered 924.1.3 Specificrequirements 92

4.2 APPLICABLESTANDARDS 934.2.1 IECStandards 934.2.2 Localstandards 934.2.3 EMCdirective/LVdirective 93

4.3 LOCALCONDITIONS 944.3.1 Tropicalclimates 944.3.2 Altitude 94

4.4 DESIGNCONSIDERATIONS 954.4.1 General 954.4.2 Ratings 954.4.3 Systemvariations 964.4.4 Temperaturerise 964.4.5 Impedancevoltageandshortcircuitcurrents 964.4.6 Vectorgroup 964.4.7 Noiselevel 964.4.8 Installation 96

4.5 CONSTRUCTIONREQUIREMENTS 974.5.1 Internalarrangement 974.5.2 Tankorenclosure 974.5.3 Windings 974.5.4 Insulation 984.5.5 Oilandfilling 984.5.6 Terminals 984.5.7 Cableconnection 994.5.8 Offloadtapchangers 1004.5.9 Earthing 1004.5.10 Fittingsandaccessories 1004.5.11 Ratingplate 101

4.6 INSPECTIONANDTESTING 1024.6.1 Inspection 1024.6.2 Testing 102

4.7 PACKINGANDSHIPMENT 1044.8 DOCUMENTREQUIREMENTS 105

5 DIESELGENERATORSET 105

SPECIFICATIONS


5.1 SCOPE 1055.1.1 General 1055.1.2 Equipmentcovered 1055.1.3 Specificrequirements 1065.1.4 Maintenancecontract 106

5.2 APPLICABLESTANDARDS 1075.2.1 Internationalstandards 1075.2.2 Localstandards 1085.2.3 CEdirective 108

5.3 LOCALCONDITIONS 1095.3.1 Tropicalclimates 1095.3.2 Altitude 1095.3.3 EnvironmentalconditionsEDGset 109

5.4 DESIGNCONSIDERATIONS 1095.4.1 General 1095.4.2 Systemvariations 1105.4.3 Operation 1105.4.4 Flexiblecoupling 1105.4.5 Noiselevel 1105.4.6 Vibration 1105.4.7 Directionofrotation 1115.4.8 Paralleloperation 111

5.5 DIESELENGINE 1115.5.1 General 1115.5.2 Coolingsystem 1125.5.3 Lubricationsystem 1125.5.4 Enginestartersystem 1125.5.5 EngineGovernor/Control 1135.5.6 Fueltank 113

5.6 GENERATOR 1145.6.1 General 1145.6.2 Standardratings 1145.6.3 Temperaturerise 1145.6.4 InsulationandWindings 1155.6.5 Degreeofprotection 1155.6.6 Shortcircuitcurrents 1155.6.7 Waveform 1155.6.8 Criticalspeed(voltagecontrol) 1155.6.9 Ventilation 1155.6.10 Spaceheaters 1165.6.11 Drainholes 1165.6.12 Cableboxes 1165.6.13 RotorandVibrations 1165.6.14 Bearings 116

5.7 CONTROL 1175.7.1 General 1175.7.2 Housing/enclosureControlPanel 1175.7.3 Anticondensationprecautions 1175.7.4 Arcingfaults 1175.7.5 PartsoftheControlPanel 1175.7.6 DieselEngineMonitoring 118

SPECIFICATIONS


5.7.7 GeneratorProtection 1195.7.8 Wiring/cabling 119

5.8 CONSTRUCTIONREQUIREMENTS 1205.8.1 General 1205.8.2 Pipework 1205.8.3 Mounting 1205.8.4 Corrosionprotection 1205.8.5 Nameplatesandtagging 120

5.9 INSPECTIONANDTESTING 1215.10 DATAREQUIREMENTS 1225.11 PACKINGANDSHIPMENT 123

6 LOWVOLTAGEDISTRIBUTION 123

6.1 MAINDISTRIBUTIONANDSUBMAINDISTRIBUTIONBOARD 1236.1.1 General 1236.1.2 Meteringandindication 1236.1.3 Panelwiring/TerminalBlocks/Labels 123

6.2 MOTORCONTROLCENTERS(MCC)FORM2 1246.2.1 General 1246.2.2 Starters 1246.2.3 Fixings 1276.2.4 IdentificationandReferencing 1276.2.5 ControlPanelComponents 1286.2.6 SelectorSwitches 1286.2.7 CompensatedEquipment 1286.2.8 Timeswitchcontrol 1296.2.9 ControlRelays 1296.2.10 CircuitProtection 129

6.3 TESTS 1306.3.1 Typetest 130

6.4 DRAWINGSANDINFORMATION 1316.5 MCBDISTRIBUTIONBOARDS 132

6.5.1 Description 1326.5.2 Enclosures 1326.5.3 Busbar 1326.5.4 Breakers 132

6.6 AIRCIRCUITBREAKERS 1336.7 MOULDEDCASECIRCUITBREAKER 1346.8 DISCONNECTSWITCHES 1356.9 EARTHLEAKAGECIRCUITBREAKER(ELCBS) 1366.10 CONTACTORS/OVERLOADRELAYS/CONTROLRELAYS/TIMERS 137

6.10.1 Contractors 1376.10.2 OverloadRelays 1376.10.3 Timers 1376.10.4 Timers 137

6.11 INDICATIONLAMPS/PUSHBUTTONS/SELECTORSWITCHES 1386.11.1 Indicatinglamps 1386.11.2 PushButtons 1386.11.3 SelectorSwitches 138

6.12 SITECONDITION 1396.13 CODESANDSTANDARDS 139

SPECIFICATIONS


6.14 VOLTMETER,AMETER&POWERFACTORMETER 1416.15 SWICHBOARDOPERATORSSMAT 1426.16 COORDINATION 1426.17 HARMONICANALYSER 1426.18 THERMALIMAGING 1426.19 ENERGYMONITORINGUNIT 142

7 POWERFACTORCORRECTION 142

8 UPS 143

8.1 UPSSYSTEM(RPA) 1438.1.1 Scope 1438.1.2 EquipmentSummary 1448.1.3 EquipmentConfiguration 1448.1.4 UPSComponentsDescription 1488.1.5 OperatingPanelandDisplay 1518.1.6 Communication 1548.1.7 StandardsandRegulations 1548.1.8 SubmittalsandProposals 1558.1.9 Installation 1558.1.10 TestingandCommissioning 156

9 VARIABLEFREQUENCYDRIVES 156

9.1 GENERAL 1569.1.1 GeneralDescription 1569.1.2 Scopeofsupply 1569.1.3 SuppliedbyContractor 1569.1.4 CodesandStandards 1569.1.5 EnvironmentalConditions 1589.1.6 ProductDeliveryandHandling 159

9.2 PRODUCTS 1609.2.1 General 1609.2.2 DesignRequirements 160

10 CABLESANDWIRING 163

10.1 GENERAL 16310.2 TEMPORARYWIRING 16510.3 CABLE 16610.4 CABLEINSTALLATION 168

10.4.1 General 16810.4.2 FireBarriers 16810.4.3 CablesInstalledUnderground 16810.4.4 CablesSheathofexternalCables 16910.4.5 CablesandCablesTrenchMarking 16910.4.6 JointingandTerminations 17010.4.7 FlexibleFireResistanceCables(FireAlarm+CentralEmergencySystem) 170

10.5 CABLESTYPES 172

11 CONDUITS&ACCESSORIES 172

11.1 CONDUITSANDACCESSORIES 17211.2 FLEXIBLEGICONDUITS 173

11.2.1 StandardsforMetalFlexibleConduit 173

SPECIFICATIONS


11.2.2 Flexibleconduit 17311.3 CONDUITINSTALLATION 17411.4 GENERALWIRINGTRUNKING 17611.5 CABLETRAYS 177

11.5.1 Submittals 17711.5.2 QualityAssurance 17711.5.3 Sequencing&Scheduling 17711.5.4 MaterialsandFinishes 17811.5.5 CableTray/TrayAccessories 17811.5.6 SourceQualityControl 17811.5.7 Execution 17811.5.8 Installation 17811.5.9 Grounding 17911.5.10 FieldQualityControl 17911.5.11 Protection 179

12 LIGHTING 179

12.1 LIGHTINGEQUIPMENT,GENERALREQUIREMENTS 17912.2 EVACUATIONANDEMERGENCYLIGHTING 181

12.2.1 General 18112.2.2 Evacuationlighting 18112.2.3 Emergency(safety)lighting 181

12.3 EXTERNALLIGHTING 18312.4 SCHEDULEOFLIGHTFITTINGS 184

13 TELECOMMUNICATIONSYSTEM 184

13.1 GENERAL 18413.1.1 Introduction 184

13.2 STANDARDSANDREGULATIONS 18413.3 RESPONSIBILITIESOFTHECONTRACTOR 18513.4 SCOPEOFWORK 18513.5 IMPLEMENTATION 186

13.5.1 ConformanceoftheInstallationtoSpecification 18613.5.2 InstallationHandover 18713.5.3 SystemTests 18713.5.4 FinalCableDocumentation 18813.5.5 FinalSignOff 188

13.6 WARRANTY 18813.7 SYSTEMREQUIREMENTS 188

13.7.1 GeneralOrganization 18813.7.2 Principles 18913.7.3 Fibrebackbone 19013.7.4 HorizontalCopperCable 19013.7.5 BuildingDistributor 19013.7.6 FloorDistributor 19013.7.7 Grounding 19113.7.8 IdentificationofLocation 191

13.8 COMPONENTSPECIFICATIONS 19113.8.1 CopperConnectors 19113.8.2 FibreConnectors 19113.8.3 WallOutletsandTOs(RJ45) 193

SPECIFICATIONS


13.8.4 PatchPanels 19313.8.5 PatchcordOrganization 19313.8.6 PatchCables 19313.8.7 CopperCable 194

13.9 FIBRECABLE 19513.10 ACTIVECOMPONENTS 196

14 LIGHTNINGANDEARTHING 196

14.1 GENERAL 19614.1.1 Airterminationnetwork 19714.1.2 Downconductor 19714.1.3 Earthingandbonding 19714.1.4 InterfaceTestclamp 19814.1.5 Testing 199

14.2 ELECTRONICSYSTEMSURGEPROTECTION 200

15 ANALOGUEADDRESSABLEFIREALARM 201

15.1 ANALOGUEADDRESSABLEFIREALARMSYSTEMANDVOICEEVACUATIONSYSTEM 20115.1.1 General 201

15.2 SEQUENCEOFOPERATION 20315.3 VOICECOMMUNICATION 20415.4 POWERREQUIREMENTS 20515.5 FIREALARMCONTROLPANEL 20615.6 OUTPUT 20615.7 MULTIPLEADDRESSABLEPERIPHERALNETWORK 20615.8 PRINTER 20715.9 ADDRESSABLEDEVICETYPES 207

15.9.1 General 20715.9.2 AddressableSensors 20815.9.3 HeatSensor 208

15.10 PHOTOELECTRICSENSOR 20815.11 ADDRESSABLEPULLSTATION 20815.12 CONTROLMODULES 20915.13 MONITORMODULES 20915.14 LINEPOWEREDISOLATORS 20915.15 ADDRESSABLEDEVICESUPERVISION 20915.16 FIREFIGHTER'SPHONEJACK 20915.17 NOTIFICATIONAPPLIANCES 20915.18 STROBESWITHSPEAKER(SINGLEUNIT) 20915.19 LOUDSPEAKERS 21015.20 AUDIO/VISUALALARMINDICATINGAPPLIANCE 21015.21 DCVIBRATINGBELLS 21015.22 GRAPHICCOMMANDCENTRE 21015.23 BEAMDETECTOR 21015.24 WIRING 21115.25 BMSINTEGRATION 211

16 CCTVSYSTEM 211

16.1 GENERAL 21116.1.1 WorkDescription 21116.1.2 SystemDescription 212

16.2 SPECIFICATIONOFEQUIPMENTSANDMATERIALS 212

SPECIFICATIONS


a. Control console 212b. PC & Monitor 213c. Network Video Recorder 213d. CCTV Camera 214

17 AUTOMATICCONTROLSYSTEM 218

17.1 AUTOMATICCONTROLSYSTEM(INTEGRATEDBUILDINGMANAGEMENTSYSTEM) 21817.1.1 General 21817.1.2 ScopeofWorks 21817.1.3 QualityAssurance 21917.1.4 SystemConfiguration 219

17.2 CENTRALHARDWARE 22117.2.1 IBMSServer 22117.2.2 Printers 22117.2.3 DDCHardwareRequirement 222

17.3 FIELDDEVICES 22717.3.1 ControlValve 22817.3.2 Differentialpressureswitchforairfilter 22817.3.3 DuctTemperatureSensor 22817.3.4 Thermostats 22917.3.5 Electricalwiring 229

17.4 ELECTRICALINSTALLATIONRELATEDTOBAS 23017.4.1 General 23017.4.2 MainAirConditioningSwitchboards 23117.4.3 ControlPanels 231

18 LIFTS 232

18.1 LIFTS 23218.1.1 Lift1: 23218.1.2 Lift2: 232

18.2 GENERAL; 232

19 ATTACHMENTS 233

19.1 CONSUMERLIST 233

SPECIFICATIONS


Mailing list: Damen : Mr.Gerrit Jan Van Ommen (ProjectDirector)

Mr. Nguyen Tri Dzung (Project Management) Mr. Nguyen Anh Tuan (Project Management) Mr. Nguyen Huy Anh (Financial Manager)

RH: Mr. Meindert Wiersma (Senior Project Manager) Mr. Roel Philippa (Project Manager) Mr. Krzysztof Swierczek (M&E Manager) Mrs. Thanh Bach (project secretary)

SPECIFICATIONS


1 FUNCTIONAL DESCRIPTION

1.1 Introduction 1.1.1 General

This document describes the conceptual design of the Electrical installations of the Damen Shipyard in Hai Phong.

Design and build stages This document, titled Tender Design is the second stage of the design process. It contains the description of electrical installations in the entire shipyard. Total package of all specifications, drawings and BoQs shall be used as tender document for the selection of the contractor who will be responsible for the workshop drawings, procurement and construction of the electrical installations that are part of the project.

1.1.2 Quality and reliability

For the operations and safety of the Shipyard the presence of the electric power is essential. Redundancy in electric power supply is designed.

The design must ensure safety to personnel and equipment during operation and maintenance of the units. It is the contractors responsibility to design all systems for power distribution and backup power supply to meet this safety requirement. The electrical equipment and installation materials will be high quality in order to ensure reliability in operation and will have a minimum design life of 15 years. The contractor must guarantee the maintainability and availability of spare parts during the minimum design life period of 15 years.

1.1.3 General Requirements

The general requirements and general technical requirements will be given in the Sections 2 till 18. These sections have the purpose to indicate the quality-level and have not the function to be totally complete in this stage. In the final design stage the contractor has to complete these Technical Requirements.

SPECIFICATIONS


1.2 Standards & Regulations 1.2.1 Electrical installations

Vietnamese Building Safety Regulations Vietnamese Building Construction Regulations Vietnamese Fire Regulations TCVN Electrical Standards

Relevant international standards as applicable with particular reference to the following: - IEC 60364 Electrical installations of buildings; - IEC 60038 Standard voltages; - IEC 60227 PVC-insulated cables of rated voltage up to and including 450/750 V; - IEC 60332 Tests on electric cables under fire conditions; - IEC 60439 Low-voltage switch-gear and control-gear assemblies. Standards for data cabling systems: - ISO/IEC 11801IT Generic cabling for customer premises; - ISO/IEC 14763IT Implementation and operation of customer premises cabling; - TIA/EIA 568B Commercial Building Telecommunications Cabling Standard;

Other Standards listed in equipment specifications.

1.3 Design Criteria

1.3.1 General The general design criteria for the installations are:

Components shall be taken from the preferred supplier list and from standard catalogues of respectable manufacturers, available locally and easy to maintain;

Reliable, good quality, flexible, easy to maintain and accessible. The design of the installations shall be in relation with the local conditions in and

outside the buildings. In particular the effect of the high relative humidity, temperature, and dust shall be taken into account.

1.3.2 Climate conditions 1.3.2.1 Location

Place : Hai Phong, Vietnam Altitude : At sea level Time zone : GMT (+7)

1.3.2.2 Design Conditions Outdoor Design Conditions Condition Summer Winter Temperature 37,2 / 29,4 Cdb/Cwb 10,0 / 5,6 Cdb/Cwb Wind speed 4 m/s 4 m/s

1.3.3 Performances for the buildings 1.3.3.1 Thermal Comfort

See building performances as indicated in the Mechanical part.

SPECIFICATIONS


1.3.3.2 Visual Comfort The following light intensities will be used.

Function Lighting level Outfitting Hall 300 lx Offices 500 lx Toilets 200 lx Storage 200 lx Technical areas 200 lx

Areas where direct sunlight will shine on the glass walls a sunblind protection will be used.

1.4 Electrical installations

1.4.1 Central electrical provisions Power supply The Shipyard shall obtain power supply from the Power Company of Hai Phong area. In the beginning, due to MV network under development in the area, only 10 kV network will be available with 500kVA power allowance for connection. Later 22 kV net will be built and connected to the shipyard with the power allowance according to factory requirements. Therefore following measures are undertaken: Double MV voltage transformers are designed (22/10/0.4 kV), 24kV insulation for MV switchboards and cabling is designed. NOTE: These double voltage conditions apply only in case the Power Company is not ready with 22kV supply before tendering time. Successful Contractor shall agree these items with the Client prior to order placement. Full back up power generators are designed to run the shipyard till the final power supply is available. The incoming power from nearest MV overhead line pole as shown on MV schematic diagram will enter the Service Substation building MV main switchgear. This switchgear will feed the ring main units within the shipyard. All major buildings will have their own substations. Spare feeders and spare space is provided for future shipyard extension. Bus section breaker is provided for isolating the ring from the supply side and for automatic change over in case of power break. PLC control has to be provided by the Contractor/Supplier to isolate the network supply side in case of power failure and switch on the generator supply on to feed the entire network. The Contractor shall deliver and install an UPS to feed the protection, PLC and signal circuits as shown on schematic drawings. Parallel operation of external power supply and emergency generators is not allowed. Low Voltage network will be: 220/380V, 50 Hz. The LV power system shall be of type: TN-S, which means separate conductors of neutral and earth from source. Reduced cross-section of neutral conductors is not allowed.

Emergency power supply - Emergency power generator is required. Two generators of 1250kVA continuous

rating are designed for the first stage of shipyard construction as per this design scope. Later other generators can be added in similar configuration.

SPECIFICATIONS


- The general emergency lighting for the Outfitting Building shall be supplied by a centralized battery system (UPS). The Uninterrupted Power Supply (UPSs) shall be installed in the Office Building Substation.

- The escape lighting luminaries shall be supplied with built in batteries (self contained). Emergency generators will work on MV network. Therefore a step up transformer 0.4/10/22 kV is designed to allow for connection of generators onto the network. This transformer will work also as step down unit for the power supply of Service Substation, Guard House building and PON building due to long distance from other substation. Emergency generators and step up transformer shall be placed in containerized enclosures as shown on layout drawings. Generator breakers, main breaker and synchronization/load sharing panel shall be located together with the transformer. In case of power failure, a signal from voltage transformers on the MV incomer, shall cause the PLC control system to initiate starting the generators and switch off the MV bus coupler. After synchronization the main generator LV breaker shall close and the factory will be supplied from generators. If the power demand is smaller than 1000kVA then 1 generator should stop. PLC shall select which one, based on previous switching so both generators running time is almost the same. On power return, after set delay, the reverse action should take place. The LV generator breaker shall be switched off and MV bus coupler breaker switched on. After cooling time the generator(s) should stop.

1.4.2 Load Evaluation

Power estimation is shown in the attached Consumer List. This attachment shows the preliminary load estimate of the main power and lighting consumers. During the Construction Design the load estimates shall be optimized according the manufacturers information.

1.4.3 Power distribution installation 1.4.3.1 MV and LV rooms and transformers (Substations)

MV and LV rooms and transformers are located in following buildings: Office Building Carpentry Building Ship Lift Control building General Store building The Substation rooms shall be provided with the installations as lighting, outlets, earthing all in accordance to the TCVN regulations. The main loads (chillers, AHUs, fire pumps and compressed air installation) are located in the technical rooms and on the roof of Office Building. Special service points will be installed for the works to be carried out on ships for their outfitting both in the Outfitting Hall and on the floating jetty. These service points shall be equipped with 220/48V transformers as shown and specified on drawings. The main LV-room of each Substation will house the main distribution boards. The main LV-room is situated adjacent to the transformer(s) room. The LV-room shall be provided with the lighting, outlets, earthing etc.

SPECIFICATIONS


The Substation in Office Building will also house the UPS systems for emergency lighting.

1.4.3.2 Power distribution inside the Outfitting Building

Inside this building, both at floor level and on service platforms service cabinets shall be located with outlets type CEE-form: 4 x 16 Amp / 1 phase 2 x 16 Amp / 3 phase 1 x 32 Amp / 3 phase 1 x 63 Amp / 3 phase Transformer 220/48V Flexible cables from the service cabinets laid on swinging arms, as shown on detail drawings, shall be provided and installed by the Contractor, together with connecting plugs and sockets; plugs at service cabinet connections and sockets on the 9,00 m level, above the ship deck. The service cabinets shall be supplied from bus bar systems. These bus bar systems shall be installed at approximately 5.5 meters height from the top service platform level, see the installation layout drawings. The Bus Bar systems in combination with the service cabinets will allow maximum flexibility for connecting loads required for the operations. Separate bus bars will feed the overhead cranes. These bus bars shall be supplied, together with the cranes, by crane supplier. The Contractor shall install the bus bar on the crane beam, supply the isolator switches for them and make necessary connections. Overhead cranes will be remotely controlled by radio hand control units.

1.4.3.3 Power distribution inside the Carpentry Building

This building will contain Carpentry workshop, HVAC workshop, Electrical workshop, compressor room with compressors and dryers, fire and domestic water pump room and auxiliary rooms like small office, IT and maintenance shop. Bigger receivers like compressors and pumps will have their own supply panel boards as shown on schematic diagrams. Carpentry machines will be fed from bus ducts hang to the building structure for better flexibility since the exact location of machines is not known at this stage. Dust collection system is design. The dust collector with its motor is located outside the building. Its control box shall be installed inside the workshop. Service distribution boards are planned within the building to feed small equipment. These will be fed either from the bus ducts or from main particular workshop distribution boards. The cables will be run on cable ladders and trays, depending on the number and size of cable and in accordance with wiring and cabling specification. Main cable distribution layout is shown on drawing. Fire pumps are located within pump room next to the compressor room. The contractor shall provide complete package including the fire pump electrical panel constructed and equipped as described in Mechanical Specification, chapter Fire Protection System.

1.4.3.4 Power distribution in General Store building

The installation principles are the same as for Carpentry building. Additionally the overhead cranes shall be supplied through the bus bars provided with the cranes. The

SPECIFICATIONS


Contractor shall install the isolator switches and make the necessary connections. Overhead cranes will be remotely controlled by radio hand control units.

1.4.3.5 Power distribution for Jetty and Cleaning Platform Stand alone distribution units shall be delivered, installed and connected by the Contractor. These units shall be equipped as shown on drawings, shall have stainless steel 316L weather proof enclosures and be installed in coordination with Maritime Contractor. Equipment to be installed within these cabinets is shown on schematics. These cabinets shall be coordinated by Electrical Contractor with Mechanical Contractor, each one producing its own part. Mechanical Contractor shall provide mechanical services like water and compressed air.

1.4.3.6 Power distribution for Ship Lift

Ship Lift MCC and control will be done by equipment provider. Electrical contractor shall deliver and install the substation and provide power supply for the MCC from Substation. In this building a room is left for movable diesel generator in case the Client would wish to have one connected. Terminals on LV incoming side should be provided by Contractor for this purpose.

1.4.3.7 Power distribution for PON building, pond pump room, contractor platform

Power supply cables will be installed underground by Electrical Contractor to feed these buildings. Supply sources are shown on schematic and layout drawings.

1.4.3.8 Power distribution general

Power cables shall be of type LsZH (Low smoke Zero Halogen) with copper core conductors. Total load of single-phase power circuits, protected by a device of 16 A, shall not exceed 3000 VA. All apparatus over 1500 VA shall be connected to individual circuits. More than 3 cables parallel shall be installed in cable trays. For cost reduction the main loads on the roof can be supplied by bus bars. Single-phase lighting circuits, protected by a device of 16A and serving more than one luminary, shall not carry more than 2400 VA. Areas equipped with two separate switches, shall have separate lighting circuits. The cable support system which shall be installed comprises cable ladders/trays. All cable ladders outside the buildings shall be provided with covers, preventing collection of dust/dirt and protect against direct sun radiation.

1.4.3.9 Switchgear

Switchgear and control gear will be of the compartmentalised metal enclosed type and will be designed and tested to IEC 60439 Standard or other approved standard by the Clients Inspector. All distribution boards shall be provided with minimum 10% spare circuits. The sizes/ratings of these spares will be similar to the sizes/ratings of the typical circuits in use. Additional all distribution boards shall be dimensioned with 20% space for future extension.

SPECIFICATIONS


1.4.3.10 Electrical Protection & Metering The electrical system will be equipped with automatic protection, which will provide safeguards in the event of electrical equipment failures or system malfunction. The protection schemes will consist of a graded discriminatory system selected to enable all parts of the installation to operate safely, reliably and under control. In the event of a fault, the system design will isolate only those circuits that are directly affected. Metering, voltage, Amps, frequency, kWh, shall be at the main feeders of the transformers. Metering shall also be connected to the building management system.

1.4.4 Lighting 1.4.4.1 Lighting luminaries

All luminaries shall be equipped with appropriate devices and components and high frequently energy saving ballasts. The Outfitting Hall shall be provided with high bay dust proof luminaries. At the walls, additional dust and water proof fluorescent lighting shall be provided. All walkways, stairs, technical rooms, etc. shall be provided with dust and waterproof luminaries. The offices to be provided with build-in luminaries with computer screen friendly louvers. Lighting controls: The lighting of the berths will be controlled by push buttons in a lockable box at the main entrances of the respective berth. Offices and workshops shall be provided with switches at the entrance doors. The general emergency lighting will be controlled together with the general lighting supplied from normal power supply. The escape route indication lighting will be continuous on.

1.4.4.2 Emergency lighting

A part of the general lighting will be supplied by means of an Uninterruptable Power Supply (UPS) to ensure a minimum lighting level of 100 Lx at 5 meters from floor during a power failure for at least 10 minutes. See relevant drawings. The escape route indication lighting shall be lighting fixtures with their own 3 hours rated battery back-up inside the lighting fixture. (Supplied decentralised).

1.4.5 Earthing Installation

A common earthing system shall be provided for electrical system equipment earthing, static protection and lightning protection. The resistance of the common earthing system to the general mass of earth, measured at any point on the plant site, is not allowed to exceed 1. Earth design will take account of soil and sub-soil conditions. Earth electrodes will consist of copper cable or strip, with a minimum size of 70mm2, connected in mesh formation of sufficient length to ensure low earth resistance. Connection between earth electrode and earth cable will be arranged in covered inspection pits to allow maintenance and testing.

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In case the measured resistance of the mesh formation will be higher than required, additional vertical copper clad steel electrodes shall be installed by Contractor until the minimum resistance is achieved. For pricing purpose several such electrodes are shown on drawings but the Contractor shall have a provision in his price for additional electrodes if required due to soil condition. Major electrical equipment such as switchgear, transformers, distribution boards, control panels, and steel structures, will be directly connected to the earthing system. A main earth bar will be provided within the main electrical rooms, which will be connected to the site main earth ring via minimum two copper conductor earthing cables. Static earthing protection shall be provided by connecting the steel structures to the common earthing system.

1.4.6 Lightning

A lightning protection system shall be installed on the roofs of buildings to protect them against lightning in accordance with TVVN Standard for the Installation of Lightning Protection. Lightning air terminals shall be copper or copper clad steel approved for use as lightning air terminals. They shall be mounted on galvanised steel pipe, at the height specified. All lightning air terminals shall be bonded together and to all metallic parts on the roof.

Down conductors shall be bonded to the building structure. The building structure shall form conductor to earth. The joints between parts of the construction shall be conductive. If required, additional copper conductor of 50 sq.mm minimum, at each constructive joint shall be installed to ensure good conductivity. Splicing and bonding of conductors shall be done by using compression connectors or by thermo-weld. Down conductors shall be connected to the ground grid.

1.4.7 Communication installations 1.4.7.1 Data-installation

The service cabinets along the walls inside the buildings and the jetty shall be provided with 4 data/telephone outlets (type RJ45) with Unshielded Twisted Pair (UTP) cabling system. In the main electrical rooms or dedicated rooms patch panels shall be installed with enough space and 400V outlets for active network components. Patch cables with sufficient length shall be part of the contract. The supply and installation of the active network components are not subject to this work. The technical requirements and specifications will be according the latest technology standards (CAT 6a). The installation shall be CAT6a certified.

1.4.8 Protection installations 1.4.8.1 Fire detection installation

A Fire detection installation according to the TCVN shall be installed. The installation consists of smoke detectors and smoke suction system in the Outfitting Hall with locations as indicated on the drawings. At the fire cabinets and at the

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entrances/stairs manual fire alarms shall be installed. An evacuation system with slow whoop and spoken word in combination with flash lights shall complete the fire detection system. The Fire detection panels shall be provided near the main entrances of the buildings. A repeater panel for early smoke detection will be placed in the central security room. Connection shall be made with the Security and Central Fire Department if required by Fire Department. The local fire authorities shall approve the fire safety plan.

1.4.8.2 Security and time monitoring system Security (CCTV) is required along the shipyard fence. The CCTV shall be executed as per drawings and attached specification. Time monitoring system shall be executed as shown on drawings. The Client will provide the server and finger prints modules. Server shall be installed in the Server Room of Office Building. Wiring shall be made in accordance with the requirements specified in Telecommunication Systems chapter 13 of this Specification.

1.4.9 Transport installations 1.4.9.1 Overhead Cranes

Outfitting Hall and General Store will be equipped with overhead cranes as shown on Structural drawings. Their supply shall be made as described in previous chapters.

1.4.9.2 Elevators

Two elevators shall be installed in Office building. These elevators shall be for persons as well as goods. No machine rooms are provided for them so the construction of the elevators shall be such that the motor and gear could be installed on upper floor.

2 GENERAL REQUIREMENTS FOR ELECTRICAL WORKS Scope of works

The Scope of works includes the design, supply, delivery to site, installation, testing and commissioning of the various complete systems outlined briefly below, and as described elsewhere in the specification documents. The contractor shall be responsible to visit the site to familiarize himself with the scope of work, preparation of shop drawings and obtaining approval from the various authorities prior to execution of work. The contractor shall also be responsible for obtaining all materials and workmanship approval during execution and on completion of works including the connection of permanent power supply and KWH meter. All costs and charges required by the various authorities shall be included in the scope of work except the power connection charges which shall be reimbursed by the Client to the Contractor immediately upon production of actual payment receipts by the Contractor. MV switchboards and all necessary interconnecting cabling and associated earthing systems,

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MV/LV transformers, LV switchboards and all necessary interconnecting cabling and associated earthing systems, Emergency generators with all necessary accessories including the fuel supply system, Power Factor Correction Capacitors, Regulators and Harmonic Filters, Variable Frequency Drives, Bus bar Risers, Sub main distribution switch gear, Sub-main distribution cabling including all cable trays, brackets and cleats, Final sub-circuit wiring including all necessary conduits, trays and trunking, All general and special purpose power accessories and switchgear, All electrical accessories including switches, power outlets, isolators, etc., Switches and all connections for internal and external lighting installation, Installation of light fittings, lamps, switches and all connections for internal and external lighting installation, Lighting control system, Lightning protection system, surge arrestors, earthing system and harmonic protection, UPS Emergency lighting system, Analogue addressable Fire Alarm system, Telecommunications System including cable trays, trunking, conduits /wiring, outlet boxes, accessories, cabinets, ducts, cabling, etc., All necessary power supplies terminating in an isolating switch located within 2 meters of the mechanical equipment/panels, All coordination with other sub trades to supply and install power supply to the various equipment including all conduits, ducts for the installation of the control wires by the equipment supplier. The work shall comprise the whole of the labour and, unless otherwise indicated, all the materials necessary to form a complete installation and such as tests, adjustments and commissioning as prescribed in subsequent clauses and as may otherwise be required to give an effective working installation to the satisfaction of the Engineer.

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2.1 General This specification is for the Mechanical and Electrical (MEP) works. However, the Instructions to Tenderers, Form of Tender, Conditions of Contract, and Note on Pricing, Preliminaries Section and any Supplementary Conditions of Contract applicable to Main Contract shall be applicable to this contract also. The term Contractor used in the MEP documents and drawings is to be considered to mean the Contractor for MEP works. Contractor shall be responsible for proper performance of all MEP systems in accordance with relevant standards and codes and design parameters listed hereinafter. Provide all items, articles, materials, operations, sundries, labour, supervision, guarantees, allowances for overhead and profit, etc., to achieve a fully functional and acceptable system. The precedence of documents and drawings shall be as determined in the Main Contract. However, consider the specifications as an integral part of the work together with the drawings. Consider any item or subject omitted from one, but mentioned or reasonably implied on the other, as properly and sufficiently indicated and provide the same under the work of this division. In case of discrepancies between various documents the more stringent shall apply. The Contractor is responsible for developing his own take off of materials and is to make this available as requested to the Consultant.

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2.2 Examination of Site and Drawings

Visit the site of the proposed works and obtain all information as to existing conditions and limitations and all proposed works on adjacent sites and in adjacent areas which might affect the works on this site, whether by Private Individuals or by Government Authorities or others.

Examine the documents including the Specifications and Drawings of all other Divisions before bidding and again before commencing any portion of the works.

Neither the Owner nor the Consultant will be responsible for any claim for extra work or expense resulting from the failure of the Contractor to be fully aware of Site Conditions.

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2.3 Permits, Fees and Inspections

Arrange for inspection of all work by the Local Authorities as and where applicable. This is to occur on an on-going basis throughout construction to avoid delays to the project. On completion of the work, present to the Consultant, for the Owner, final unconditional approval certificates of the Inspecting Authorities. Pay fees / charges as levied by the Local Authorities for inspections, approvals, temporary services, connections, etc. at no additional cost to contract unless noted otherwise.

Before commencing any work on site, submit the shop drawings (approved by the Consultant) to the Authorities, as and where applicable, for checking and approval. Follow the progress of such drawings to permit the timely approval of them by the Authorities. Comply with any changes requested by the Authorities, but notify the Consultant immediately of any such change and obtain his approval.

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2.4 Contract Drawings

The drawings for services works are concept design drawings, diagrammatic, and intended to convey the scope of work and indicate general arrangement and approximate locations of apparatus, fixtures, pipe and duct runs, etc. The drawings do not intend to indicate architectural or structural details.

These cannot be used as shop drawings. Contractor must develop own detailed shop drawings for work at site. Do not scale drawings. Obtain accurate dimensions to structure and architectural items from drawings of those trades. Confirm by site measurement. Verify location and elevation of all services (Water, Electrical, Telephone, Sanitary, Storm Drainage, Gas, etc.) before proceeding with the work. Make at no extra cost, any changes or additions to materials, and / or equipment necessary to accommodate structural conditions (pipes or ducts around beams, columns, etc.)

Alter, at no additional cost, the location of materials and/ or equipment as directed, provided that the changes are made before installation and do not necessitate additional material.

Install all ceiling mounted components (Diffusers, grilles, detectors, light fixtures, emergency lights, fire detectors, loudspeakers, camera points, etc.) in accordance with the reflected ceiling drawings which are to be prepared by the Contractor and coordinated with all trades. These must be submitted for approval and be approved before any work commences on site.

Leave space clear and install all work to accommodate future materials and/or equipment as indicated and/or supplied by other divisions of work of the contract. Install all pipe runs, conduit runs, cable trays, etc., to maintain maximum headroom and clearances, and to conserve space in shafts and ceiling spaces and under floors, and to provide adequate space for service and maintenance.

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2.5 Shop Drawings, Builders Work Drawing and Material Submittals

Within 15 days of award of Contract, submit program of works. Along with the program, submit a schedule detailing proposed submission dates for all Material Submittals, Shop drawings and Builders work drawings. Allow 15 days review period by the Consultant for each submission.

Contractor must obtain, from the Consultant, approvals of all materials, equipment and drawings within appropriate time to facilitate work at site, but, within 75 days latest, from the Contract award date. This period includes any required resubmissions till final approval is obtained. Prepare drawings in conjunction with all trades concerned, showing sleeves and openings for all passages through structure and all insert sizes and locations.

Prepare composite construction drawings, fully dimensioned, of piping and equipment in tunnels, shafts, mechanical equipment rooms and areas, and all other critical locations to avoid a conflict of trades.

Base equipment drawings upon shop drawings and include but do not necessarily limit to, all details pertaining to access, cleanouts, tappings, sleeves, electrical connections, drains, location and elevation of pipes, ducts, conduits, etc., obtained from consultation with, and agreement of, all trades involved.

Prepare drawings of equipment bases, pump pits, anchors, inertia slabs, floor and roof curbs, wall openings, trenches.

Prepare all drawings to scale as agreed with the Consultant. Generally, the scale shall be 1:50 for layouts and 1:20 for Details and Sections, etc. Forward these drawings, approved by all trades concerned to the Consultant for his records. Provide copies in a number as specified elsewhere in the Contract but not less than four sets.

Drawings production and presentation is a Contractual matter and any delay in making these submissions will be considered a Contractual delay and may be subject to Contractual penalties in accordance with Contract documents.

The Consultant will only consider shop drawings bearing the stamp of the Contractor and all Subcontractors involved. Check for all pertinent information such as physical dimensions, make, performance, electrical characteristics and indicate the intended use and location before submitting these drawings. Use reference symbols or enumeration to correspond to the design drawings.

Assume responsibility for accuracy of equipment dimensions related to space available, accessibility for maintenance and service, compliance with inspection authorities codes. Ensure that shop drawings indicate working weights of all equipment.

The submission of samples, wherever required by Consultant, will be subject to the same procedure as that of shop drawings. One set of such samples shall be required to be brought to site and kept there after approval till substantial completion.

The Consultant will mark the drawings "Approved / Approved with comments / Revise and Resubmit / Not Approved. Contractor shall resubmit accordingly.

The Consultant is not responsible for any delays caused by the inadequacy of the Contractor's drawings or his failure to obtain initial or subsequent approval. Any time taken

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by the Contractor to obtain approval after the originally scheduled date will be considered as a delay to the contract caused by the Contractor.

The Consultant's review shall not relieve the Contractor from responsibility for deviations from the Contract documents, unless he has, in writing, called the Consultant's attention to such deviations at the time of submission of drawings. The Consultant's approval shall not relieve the Contractor from the entire responsibility.

Any approval by the Consultant shall be on the understanding that any item submitted shall be ordered with options and modifications fully meeting the specification. Any fabrication, erection, setting out or other work done in advance of receipt of stamped drawings shall be done entirely at the Contractor's risk and cost.

Furnish prints of the reviewed details to all other parties who may require them for proper coordination of their work, and furnish all information necessary for the work as a whole.

Obtain Manufacturers' installation directions to aid in the proper execution of the work. Submit two copies of such directions to the Consultant prior to installation, for use in inspecting the work.

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2.6 Record (as-built) drawings

As the job progresses, mark on one set of prints to accurately indicate the status of installed work. Have the prints available for inspection at the site at all times. 30 days before commissioning, finalize the As Built drawings and submit 2 sets as draft to the consultant for checking and approval. Upon approval, submit one set of transparencies and three sets of prints to the consultant for onward transmission to the client.

Show on the record drawings the installed inverts of all services entering and leaving the building and the property. Dimension underground services at key points of every run in relation to structure and building. Record all elevations for underground services in relation to floor level of the building and give reference dates to Municipal benchmarks.

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2.7 Operational and Maintenance Manuals

Upon successful commissioning, submit one draft of Operation and Maintenance Manuals for review and approval of Consultant.

a. Separate binders shall be used as follows:

i. HVAC. ii. Electrical ii. Low Current Systems. iv. Fire alarm system.

v. UPS lighting system.

vi. Plumbing and Drainage.

vii. Fire and Safety. viii. Any Services other than above.

b. The minimum information required is as follows: i. Catalogs highlighting the Make, Model and other necessary details for all Material

and Equipment installed. ii. List of Local Agents / Suppliers for all Materials and Equipment with Telephone,

Fax and Email address. iii. Detailed description of systems operation. iv. Procedures for Preventive, regular and the breakdown maintenance, with

Manufacturers Operation and Maintenance Catalog for all Systems/ Equipments. v. Commissioning data for all Systems / Equipment. vi. List of recommended spares. vii. Country of Origin Certificate viii. Upon approval of the draft by the Consultant, submit 4 set of manuals to

Consultants for onward submission to the Owner.

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2.8 Temporary Service Do not use any of the permanent service facilities during construction, unless specific written approval is obtained from the Consultant and the Owner or where specifically allowed elsewhere in the Contract Documents. In the event that mains power is not available or is not of sufficient capacity for commissioning and testing, supply, install and operate diesel generator(s) of the correct capacity. Any generator must have full safety features and must be maintained regularly to ensure site power at all times.

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2.9 Cooperation

Confer with all trades installing equipment which may affect the work of this division, and arrange equipment in proper relation with that equipment installed under all Divisions of the Contract.

Furnish all items to be built in by others, in time, complete with all pertinent information, commensurate with the progress of the work. Store materials neatly and out of the way and clean up all refuse caused by the work daily.

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2.10 Existing Work and Equipment

Before this Contractor undertakes work in any area he must prepare a list of deficiencies in that area which affect his works, or which could possibly be construed as being caused by him if not noted. In the event that such deficiency list is not prepared, then he shall be deemed responsible for such deficiencies. Any list shall be brought to the attention of the Consultant forthwith.

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2.11 Supervision

The Subcontractor will maintain at site, as necessary for the performance of the Contract, qualified personnel and supporting staff, with proven experience in erecting, testing, and adjusting projects of comparable nature and complexity.

Before commencing work the Contractor will submit details of the proposed Engineers and Supervisors, including copies of their Certificates. If in the Consultant's opinion the proposed Engineers or Supervisors are not adequately qualified or are otherwise unacceptable, the onus is on the Contractor to submit alternates until such approval is given.

Where the Contractor's staff becomes during the Contract deficient in performance, the Contractor is to remedy the situation by immediate and appropriate replacement, to Consultants approval.

Approval of the Contractor's Engineers or Staff shall in no way prevent the withdrawal of that approval at any time during the Contract should the Consultant so desire. In the event of such disapproval, Contractor will be required to rectify the position as stated above within 14 days.

In the event of any negligent or severely detrimental behavior the Consultant has the right to order the removal from site of any Engineer, Supervisor, or worker on a "forthwith" basis.

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2.12 Cleaning Each day as the work proceeds and on completion, clean up and remove from the premises all rubbish, surplus material, equipment, machinery, tools, scaffolds, and other items used in the performance of the work. Clean out dirt and debris and leave the buildings broom clean with no stains and in a condition acceptable to the Consultant.

Where electrical items form part of the visible finish in the rooms, protect from over-painting, etc. and give all items a final cleaning before handing over of the project.

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2.13 Accessibility, Access Panels and Doors

Any item of equipment requiring maintenance shall be located so as to be accessible for maintenance or repair without removing adjacent structures, equipment, piping, ducts or other materials. Install all concealed equipment requiring adjustment or maintenance in locations easily accessible through access panels or doors. Install systems and components to result in a minimum number of access panels. Indicate access panels on as-built drawings.

Provide the respective Division of work with panels, doors or frames, complete with all pertinent information for installation.

Ensure that access doors are installed in a manner to match the building grids where applicable. Prepare detail drawings showing location and type of all access doors in coordination with other trades before proceeding with installation and hand these to the Contractor to obtain approval. Size all access doors to provide adequate access and commensurate with the type of structure and Architectural finish. Should it be necessary for persons to enter, provide a minimum opening of 600 x 450 mm.

Ensure proper fire rating of access doors in fire separations

Lay-in type ceiling tiles, if properly marked may serve as access panels.

The access panels shall be constructed and shall have finishing to match surrounding architectural construction and finishes and shall be to engineers approval or as specified elsewhere in the contract documents.

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2.14 Contractors Responsibility

The appointed Contractor shall accept full functional responsibility for all electrical services to meet the requirements of the Client / Engineer and generally in accordance with this specification.

The Contractors tender submission shall include for all the necessary material, plant, equipment and systems to meet the Engineer's approval whether specifically mentioned herein or not.

The scope of work shall include, but not necessarily be limited to the following:

Design Parameters

The electrical system equipment selection and installation shall comply with the particular requirements listed hereunder: Site Conditions All electrical equipment and components shall be selected and installed such as to operate satisfactorily and safely under the following climatic conditions.

Maximum shade temperature in summer 42 deg. C Minimum ambient temperature in winter 5 deg. C

Relative humidity max 87 %

Rusty atmosphere

System of Supply

Three phase, neutral and protective conductor (TN).

The system of supply shall be at 380V 3Ph, 50Hz with a maximum short circuit capacity of 50 kA for 1 second at the main bus bar of the LV Switch Board.

The electrical system shall have following system variations at the sub-station: Voltage +/- 6% Frequency +/- 4%

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2.15 High Voltage Network

The contractor shall be responsible for all negotiations with the local Power Company to ensure that supplies are available to meet the construction program. It shall be the Contractor's responsibility to execute all civil construction work connected with the HV Distribution Network as required by Power Company. All costs associated with acquiring permanent incoming mains supply including all civil works shall be included in the contract except for the power connection charges which shall be paid by the Client.

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2.16 Authorities Approval

The contractor shall be responsible for liaising with Fire, Power, Telecommunication and any authorities after obtaining the Consultant's approval, in order to :-

Approve the shop Drawings, before ordering any equipment, and commencing with the installation.

Approve any excavation prior to installation;

Acquire main supply connection; Approve the Fire Alarm, Telephone systems etc.

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2.17 Regulations

The installation shall be carried out in accordance with the current edition and supplements of the following Regulations and Standards:

a. Statutory Regulations of TCVN. b. It is the contractor's responsibility to ensure that the electrical work and installation

meets with the requirements of the relevant authorities and there shall be no extra cost whatsoever paid by the client due to the requirement of the authorities.

c. IEE regulations with latest amendments. d. All relevant BS, IEC Standards. e. Other appropriate regulations under statute. f. Requirements of BS 7671, 2004.

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2.18 Definitions

For the purpose of this Specification: a. The definitions given in the IEE Regulations for Electrical Installations apply. b. The words "weatherproof" and "dust protecting" shall have the meanings ascribed to them in the relevant regulations. c. The words "complete installation" in Clause 1.1 shall mean not only the major items of plant and apparatus conveyed by the Specification, but all the incidental sundry components necessary for the complete execution of the works and for the proper operation of the installation, with their labour charges, whether or not these sundry components are mentioned in detail in the tender documents issued in connection with the contract.

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2.19 Phase Identification

Phase identification shall be as per the latest TCVN Standards.

Function

Marking

Conductor color

3 phase circuit Phase -1 Phase -2 Phase 3

- L1 - L2 - L3

- Red - Yellow - Blue

Neutral - N

- White

Protective conductor - PE

- Green and Yellow

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2.20 Voltage Drop

The voltage drop between the incoming LV switchboard and extremity of any circuit shall not exceed 4% of the nominal supply voltage.

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2.21 Telecommunications Interference

The whole of the electrical installation work shall be so designed that there is an absolute minimum of interference with telecommunications, and the reception of broadcasting to BS 800 or any other relevant BS.

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2.22 Segregation of Services

The armour of all cables, cable trays, trunking, ducts etc., shall be prevented from coming into contact with non-electrical services by minimum spacing of 150mm. Where this is impracticable they shall be bonded to the exposed metal of the other service through a protective conductor.

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2.23 Builders Work

To reduce the necessity for cutting away and the like, certain holes and chases will be provided in the structure by the Contractor to the Engineer's instructions. The Contractor shall plan his work so that full advantage is taken of these provision's but it is the Contractor's sole responsibility to ensure that all holes and chases are in the required position and that any additional ducts, holes and chases necessary for the execution of his work in the in-situ concrete walls, floor slabs, columns and beams are executed in the early stage of construction of the building.

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2.24 Foundation Bolts and Supports

The Contractor shall arrange for the supply of, in advance of the delivery of the equipment, all necessary frames, foundation bolts, nuts, plates, sleeves and anchorages as and when directed. Specifically, the supporting frames for MV and LV switchboards in Substations, where the raised floor structure may be to week to support the switchboards, shall be designed, manufactured, delivered to Site and installed by the Contractor. Switchboard Manufacturer requirements in this regard shall be strictly followed. All cable trays, cable trunkings, light fittings and any other electrical components shall be installed and supported using a standard product recommended by the manufacturer, where such support is not a standard product range. The contractor shall only use galvanized material to engineer's approval as a support.

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2.25 Design and Standardisation

The Works shall be executed to facilitate inspection, cleaning and repairs for use where continuity of operation is the first consideration. All equipment supplied shall ensure satisfactory operation under working conditions. All plant containing rotating parts shall be capable of operating at speeds up to the maximum duty specified without vibration or excessive noise. Corresponding parts throughout the Contract Works shall be made to gauge and shall be interchangeable wherever possible. The Contractor may be required by the Engineer to prove interchange ability by actual interchanging of the various parts. Suitable provision by means of eyebolts or other means are to be provided to facilitate handling of all items that are too heavy or bulky for lifting and carrying by two men (70 kg).

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2.26 Materials, Shop Drawings and Workmanship

The contractor shall be responsible to obtain the Consultant's approval on the design and the detailed working drawings prior to ordering any equipment and commencing the installation. Separate drawings shall be provided for each electrical system. The contractor shall be responsible for preparing a dimensional shop drawing showing the exact location and mounting height of the different components. The contractor shall also be responsible for preparing enlarged scale details, sections and elevations wherever requested by the Engineer. If requested by the Engineer, the contractor shall forward coordinated shop drawings showing the exact locations of all services. In addition to the above, the Contractor shall forward schematic diagrams for all system. The schematic diagram shall include all details requested by the Engineer. It is a requirement of the specification that the finished appearance of the plant in public areas is of a high architectural standard and all panels, covers, trim panels, finishes and the like shall be included to provide this required appearance to the satisfaction of the Engineer. The whole of the equipment supplied shall be of durable finish and suitable for installation in a modern building. The Contractor shall be responsible for ensuring that the components of each system are mutually compatible and integrated to form fully efficient systems complying with the Drawings and specifications. All materials shall be, where applicable, in accordance with the IEE, BS Regulations, UL Specifications, Factories Act and Insurance Company requirements, where such exists, unless otherwise specified or agreed by the Engineer in writing. All articles and materials specified to conform to the Standards shall be clearly and indelibly marked and stamped with the Standard number specified and other details required by the regulations, except where marking is impracticable when the relevant advice / delivery notes shall include the Standard number with which they are to comply. All materials and workmanship shall be to the satisfaction of the Engineer, particular attention shall be paid to a neat orderly well arranged installation, carried out in a methodical competent manner. The contractor shall be responsible to replace all the unsatisfactory work to the engineer without any extra cost and to the standard required by the consultant. This also applies to any item which is found to be defective in service during the maintenance period or extended maintenance as appropriate. No person shall be allowed to execute any type of work which is normally carried out by a skilled tradesman unless he is thoroughly experienced and proficient in the trade

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concerned. The Engineer shall have the option to require a tradesman to demonstrate his proficiency to the satisfaction of the Engineer.

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2.27 Samples

Whenever requested, the Contractor shall provide a sample properly labelled of all lighting fittings, switches, fittings and other like accessories described in this specification or as specified by the Engineer. Such samples shall be submitted to the Engineer for his approval at his offices or elsewhere as directed, with all parts left loose, so that they may be taken apart for internal inspection by hand without the necessity of using spanners, screw drivers or wrenches.

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2.28 Storage of Plant and Equipment

All plant and equipment shall be stored off the ground under weather-proof cover until ready for incorporation in the works. All electrical apparatus shall be examined and cleaned before installation. All open conduit ends shall be fitted with plastic caps or suitable protective covering to prevent the ingress of foreign matter. All drums with cables shall be protected from direct sunlight. Protect the building and structures from damage due to carrying out the work. Protect all electrical works from damage. Keep all equipment dry and clean at all times. The contractor shall be responsible for and make good any damages caused directly or indirectly to any walls, floors, wood work, brickwork, finishes, services, etc.

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2.29 Painting (Electrical Plant and Equipment)

Where it is the usual practice of the manufacturer of items such as electric motors, switchgear, control panels, and similar equipment, to apply a high standard of protective paint work in the shop before dispatch, this will be acceptable provided any damage to paint work on the plant and equipment which occurs is made good by the Contractor to the satisfaction of the Engineer. The interiors of control panels, switchboards and switchgear, finish paint (two coats work) shall comply with the appropriate standard for enamel finish and the exteriors of such panels shall be of a British Standard colour.

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2.30 Labels

Identification labels of 'traffolite' or other approved material engraved black on white both in Arabic and English language unless otherwise agreed, with not less than 5mm 'lino' style letters shall be fixed on or adjacent to all controls, switches and distribution gear by means of at least two brass screws. Socket outlets of voltage other than 230 volt AC shall be similarly identified or engraved. The labels shall bear the identifications shown on the drawings, such as identification, designation, function and where necessary, phase and voltage.

Each distribution board shall be complete with a chart protected by transparent plastic and fixed securely to the inside of the lid indicating details of each circuit controlled by the board. These details shall contain points of utilization served, number and size of conductors and type of wiring. Permanent warning labels, durably marked Earth Connection Do not Disconnect shall be permanently fixed in a visible position near each earthing and bonding connection.

A mimic diagram shall be provided on each main, sub main panel board and on each motor control centre.

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2.31 Inspection And Tests at Manufacturers Work

The Engineer shall have at all reasonable times access to the Contractor's premises to inspect and examine the materials and workmanship of the plant and equipment during its manufacture there, and if part of the plant and equipment is being manufactured on other premises, the Contractor shall obtain for the engineer permission to inspect as if the plant and equipment was manufactured on the Contractor's own premises. Such inspection, examination or testing, if made, shall not relieve the Contractor from any obligation under the Contract. All work, materials and the like rejected shall be corrected or replaced as necessary at the Contractor's expense to the satisfaction of the Engineer.

Where the plant and equipment is a composite unit of several individual places manufactured in different places, it shall be assembled and tested as one complete working unit. All equipment will be tested at the maker's works to the relevant standards where applicable.

The aforementioned works tests carried out before delivery to the Site shall not in any way relieve the Contractor of completing satisfactory site tests after erection as specified.

The contractor shall give the Engineer reasonable notice, at least seven clear days in writing of the date on and the place at which any plant or equipment will be ready for testing as provided in the contract and the Engineer shall thereupon at his discretion notify the contractor of his intention either to release such part of the plant and equipment upon receipt of the works tests certificates or of his intention to inspect such part of the plant and equipment and shall then, on giving twenty-four hours notice in writing to the Contractor, attend at the place so named within seven days of the date by which the contractor has stated in his notice the said plant and equipment will be ready for testing. The Contractor shall forward to the Engineer six duly certified copies of the test readings.

Whether at the premises of the Contractor or of any of his sub-contractors, the Contractor except where otherwise specified shall provide, free of charge, such labor, materials, electricity, fuel, water, stores, apparatus and instruments as may be reasonably demanded, to carryout efficiently such tests of the plant and equipment, in accordance with the contract and shall give facilities to the Engineer to accomplish such testing. Works tests shall also be carried out such that due consideration is given to the Site conditions under which the equipment is required to function. The test certifications shall give all details of such tests.

As and when any plant and equipment shall have passed the tests referred to in this clause the Engineer shall issue to the Contractor a notification to that effect. The Contractor shall not pack for delivery or transport to Site any part of the plant or equipment until he has obtained from the Engineer his written approval to the release of such part for delivery after any tests required by the Engineer in terms of this clause have been completed to his satisfaction.

SPECIFICATIONS


2.32 Testing and Commissioning At Site

Upon completion of the installation or part of the installation, the Contractor shall carry out and be responsible for the testing and commissioning all plant, equipment and integral systems, in stages if required, to ensure that it is in proper working order and capable of performing all of its functions in accordance with the specification and to the satisfaction of the Engineer. The Contractor shall be fully responsible for all equipment until each item of plant, equipment or system or part thereof has been tested, commissioned and accepted by the Engineer.

Any equipment damaged in commissioning shall be replaced by new plant by the Contractor at his expenses and the plant, equipment or system concerned shall be re-tested and commissioned. No instruction or action of the Engineer shall relieve the Contractor of this responsibility.

All testing and commissioning shall be carried out according to the requirements of the relevant Standards and regulations as may be stated or implied in this specification.

The Contractor shall give to the Engineer in writing at least ten days notice of the date after which he will be ready to make the specified tests on completion of installation. Unless otherwise agreed the tests shall take place within seven days after the said date on such day or days as the Engineer shall in writing notify the Contractor. The tests shall as far as possible be carried out under normal working conditions to the satisfaction of the Engineer and shall extend over such periods as he may direct.

If in the opinion of the Engineer the tests are being unduly delayed, he may by notice in writing call upon the Contractor to make such tests within ten days from the receipt of the said notice and the Contractor shall make the said tests within the said ten days and notify the Engineer of the days on which the said tests are to be made. If the Contractor fails to make such tests within the time aforesaid the Engineer may himself proceed to make the tests. All tests so made by the Engineer shall be at the risk and expense of the Contractor.

The Contractor shall provide all skilled labor, supervision, apparatus and instruments required for commissioning and testing and within a reasonable time thereafter furnish to the Engineer six certificates of all tests performed and accepted, signed by the Engineer, the Contractor and an authorized person acting on behalf of DEWA as prescribed in the appropriate Regulations and Specifications. If any part of the plant or equipment fails to pass the specified tests, further tests shall, if required by the Engineer, be repeated. The Contractor shall, without delay, put in hand such modifications as are necessary to meet the requirements as described in the Contract and any expense which the Employer may have incurred by reason of such further tests may be deducted from the Contract Price.

The Contractor shall include for submission of working drawings for the electrical installation to the Power Company for approval and shall allow for the procurement of the Power Company test certificate upon completion of the building following inspection of the electrical installation by Power Company. Acceptance shall not in any way absolve the Contractor of his responsibility for the performance of the plant or equipment after erection as a complete working system in all respects.

SPECIFICATIONS


2.33 System Acceptance

The ultimate condition for system acceptance is that the Owner and Consultant have inspected the system and found it to be acceptable, and indicated this in writing.

Issuance of the final payment certificate does not necessarily indicate system acceptance, neither does release of final payment holdback in whole or in part. The Consultant's acceptance may be contingent on any or all of the following if applicable:

Submit original copies of letters from manufacturers of all systems indicating that their technical representatives have inspected and tested the respective systems and are satisfied with the methods of installation, connections and operation.

Submit "as built" drawings and operation and maintenance manuals.

Train owner's maintenance staff.

Submit original of all guarantees and warrantees of equipment and systems required as per contract.

Hand over all keys of panel boards and equipments, passwords for operation systems, control, etc.

SPECIFICATIONS


2.34 Correction after Completion

Remedy all work in accordance with the General Conditions of Contract during the Maintenance period.

Attend immediately to any and all the defects occurring during the period defined above and repair in a manner to prevent recurrence. This contractor is responsible for all work required by other trades necessary to repair the works of this section, or necessary to repair damage caused by the failure of any part of this section.

Instruct all Suppliers and Manufacturers that guarantees on equipment will commence when the completed work is accepted and not from the date the equipment is put into operation. In the event that this condition is omitted by the supplier, or if subsequent cost to the Owner is involved. Contractor shall be liable for such costs.

SPECIFICATIONS


2.35 Guarantees

The Contractor will guarantee all material and workmanship for at least 12 months after preliminary take over by the Owner.

All guarantees from equipment suppliers will be vested in the Owner, regardless of whether the Contractor who supplied the equipment is still associated with the project or not. Guarantees will be full guarantees and will include all overhead, profit, incidental charges and sundries. Where damage is caused to any other item by any failure of the item guaranteed, and then the guarantee shall also include the costs incurred in rectifying that damage.

SPECIFICATIONS


2.36 Maintenance

Maintenance is defined as the Contractual Liability to maintain the equipment in working condition, PLUS the regular checks and servicing of equipment during the maintenance period, including all the consumables and spare parts to keep the equipment in best working order. Regular maintenance shall be as necessary, but in any event not less frequently than monthly. Breakdown calls shall be attended immediately.

Maintenance period shall be 1 year from the date of handing over for all Electrical works.

SPECIFICATIONS


2.37 Schedule of Manufactures

SCHEDULE OF MANUFACTURERS - ELECTRICAL WORKS

All the materials supplied under this contract shall be from one of the manufacturers listed below. No alternate Makes shall be accepted unless all the listed Makes are unavailable. Materials proposed from listed Makes also must fully comply with Detailed Specifications. Country of Origin, where listed, must be complied.

1. MDBs / SMDBs / DBs / MCCs / Changeover Panel / Isolator

.

* For wall mounted SMDBs, DBs and other smaller panels, RITTAL, HIMEL, GMC & ETA make enclosures may be used. 2. Cables and Accessories Evertop, LS, Taya, 3. Cables Trays / Ladders OBO Bettermann - Germany Wibe Sweden

Cablofil France QTC, Sang Tao 4. Cable Trunking Barton

Wiremold MK OBO Bettermann QTC, Sang Tao

5. Heat Resistant Cable ( 90 C) Tekab

Draka Ducab Pirelli Evertop, Tai sin

6. Wiring accessories

SR MAKE ENCLOSURE

1. ABB ABB, Hai Nam, QTC

2. Siemens Siemens, Hai Nam, QTC, Sang Tao

3. Schneider Electric Schneider, Hai Nam, QTC

4. GE Hoang Trang, QTC

SPECIFICATIONS


S.NO.

Make White plastic Slimline metal finish

1 MK Aspect Ultra

2 MEM Spectra grid Contactum

3 Legrand Mosaic Synergy modern

4 Clipsal Mega 2000 Gains Borough classic

5 Contactum Grid Flat plate

7. GI box Barton Decoduct Appleby

Clipsal Elektra Panasonic An Phuc VN / Cat Van Loi VN

8. Industrial Sockets Lewden

MK Legrand Clipsal

9. PVC conduits and Accessories Decoduct

Marshall Tufflex Clipsal

10. G.I. Conduit and fittings Barton

Maruchi Walsal WM Interface Panasonic Smart tube

11. PVC Coated Flexible GI Conduit Kopex

Adaptaflex Lappcable WM Interface

An Phuc VN 12. Fire Alarm System Simplex - USA Edwards Canada

Gent 34000 - UK Notifier - USA Siemens USA

13. Fire Alarm Cable Pirelli

Firetuff GST Cavicell Evertop, LS

SPECIFICATIONS


14. Earthing system, Lightning Furse Protection System, Electronic A. N. Wallis Systems Protection, Surge Erico Arrestors Kingsmill

03B Damen-Electrical Spec

Documents

Transcript of 03B Damen-Electrical Spec