Electrical SystemsAdditional requirements to NORSOK standard

NORSOK standard cross reference list:

E-001, Electrical Systems, Rev. 5

1 General1.1 PurposeThe purpose of this document is to ensure that technical requirements on theelectrical system is clearly defined, followed up and carried out with the specifiedrequirements.

1.2 ScopeThe document covers the companys additional requirements to the NORSOKstandard E-001. And it also covers the companys requirements not related toNORSOK E-001. It is important to understand that NORSKO E-001 and companysadditional requirements must be read as one document.

1.3 Target group and ResponsibilityThe document owner is responsible for this document and for ensuring that it isupdated or revoked when required by organizational or operational conditions.

1.4 Deviation managementDeviations shall be handled in accordance with guideline 4920, "Handlingnonconformities and gaps". All approved/rejected deviations shall be sent to theTechnical Document Center for registering and filing.

1.5 Definitions/AbbreviationsN/A

1.6 ReferencesNormative References

NORSOK Standards:

E-001Electrical Systems

2 Technical requirements2.1 General

2.1.1 Climatic conditions

The installation shall operate satisfactory under the following environmentalconditions:

Maximum sea temperature: + 18°C

Minimum sea temperature: + 2°C

Maximum air temperature: + 25°C

Minimum air temperature: - 10°C

Maximum indoor temperature:+ 35°C

Maximum relative humidity: 100% (condensing in field)

Minimum relative humidity: 28%

Atmosphere: Salty and corrosive

Wind velocity: 25m/sec gusting to 45m/sec.

2.1.2 Hazardous atmospheres

All equipment to be in operation in unclassified area during situation of hazard andaccident, except where located in CCR, LER, in emergency switch room, emergencygenerator room, battery charger and UPS room or living quarters, shall as a minimumbe suitable for IEC zone 1 area, gas group IIA, temperature class T3 hazardousatmosphere. Note: Battery room installation shall be approved for gas group IIC, or“IIB + H2”.

2.1.3 Responsibility of area classification

When determining area classifications all proposals should be made to the TechnicalSafety Section before sign off by responsible person electrical systems.

2.1.4 Interface and replacement of existing equipment andsystems

Interface to-, or replacement of, existing equipment and/or systems, should complywith the philosophy used on the platform involved (Platform standard). Anyhow, acase by case evaluation shall be done to evaluate use of NORSOK or oldspecifications. An evaluation shall be done in close co-operation with responsiblediscipline and shall be approved by responsible discipline.

Reference between drawings (existing platform drawings and new drawings) ismandatory. This is applicable for all drawings, also standard vendor packagedrawings. These requirements also apply between different types of drawings, ie.electrical, mechanical and instrument. If vendors standard drawings contain differentsymbols or signs than those used on companies facilities, a legend explainingsymbols shall be used.

2.1.5 Use of annexes

The content of all annexes in this additional technical requirement are interpretationof roles and regulations and shall as such be considered normative. The drawings inthe annexes give more detailed information than NORSOK and include valuableinstallation and design information. Anyhow the layout of the drawings shall beconsidered as guidelines only.

2.2 NORSOK E-001 Electrical systemsThe alpha/numeric headings in the following chapter reference the headings inNORSOK standard E-001.

The section numbering corresponds with the section numbering in NORSOK E-001.Only section numbers with relevant comments to NORSOK E-001 are included.

2.2.1 NORSOK E-001 chapter 2.1 Normative references

H-001 Heating, Ventilation & Air Conditioning (HVAC)

I-001 Field Instrumentation

FEA/FEA-M 1990 (for minor modifications on platforms designed before NORSOK)

References:

3093Notification of Safety and Automation System Design & Modification

3599Arbeid på elektrisk utstyr

3800Prequalification of Personnel - Activities related to Electrical Installation

3801Notification of Electrical Installation

4621Material, Fabrication and Surface Treatment Requirements for ProcurementPackages

4672Heating, Ventilation & Air-Conditioning (HVAC)

4676Field Instrumentation

4920Nonconformity Management

5067Completion Manual for Projects and Modifications

6307Safety Shutdown Systems

6326Management of Technical Control Documents (TCD)

2.2.2 NORSOK E-001 chapter 3.2 Abbreviations

BESD Blue Emergency Shut Down

DBESDDrillers Blue Emergency Shut Down

DOL Direct On Line starting

LER Local Equipment Room

PSD Production Shut Down

RESD Red Emergency Shut Down

YESD Yellow Emergency Shut Down

2.2.3 NORSOK E-001 chapter 4.10 Location of electricalequipment in units

For areas for storage and preparation of food such as cooling rooms, freezer rooms,kitchens etc., the installation shall be designed for easy cleaning according to theHealth Department regulations and satisfaction.

2.2.4 NORSOK E-001 chapter 5.1.3 Emergency source of power,(UPS)

The UPS system shall be supplied from alternatively Normal and Emergency supply.The changeover shall be according to Annex 2: Uninterruptible power supply system.

The UPS system shall be able to be started from battery supply only (Black startfunction) after a YESD situation. Bypass of the ESD trip signal to battery breaker shallbe by key switch located in LER or CCR, a bypass alarm function shall be provided.Battery breakers closing can be local operated.

The Company shall be contacted regarding UPS system configuration.

Redundant UPS shall not contain common mode failure elements. This means thatthe system is laid out such that there is unrestricted access to one unit while theother is in service.

The battery system back-up time shall be according to NORSOK S-001 chapter 18Emergency power and IMO 1989 MODU CODE chapter 5.

Ref to EN ISO 13702 table C.1 List of services.

Service Suggestedperiod

Fire and gas detection and alarm systems 180 min

Emergency shutdown and depressuring (ESD/EDP) controlsystems 30 min

Process monitoring and control systems 45 min

Service Suggestedperiod

Public access, platform audible alarms and status lights 180 min

SOLAS communications equipment 24 h

Emergency and escape lighting 90 min 1)

Navigational aids including helideck lights 96 h

The battery back-up time shall be approved by company in each case.

Emergency and Escape lighting is feed from emergency generator, the emergencygenerator function time is 18 hours. Battery backup time of 30 minutes is thereforesufficient.

There shall be starting sequence logic for the start-up of the FW pumps andemergency generator in accordance with NFPA 20.

1) For new batteries.

2.2.5 NORSOK E-001 chapter 5.1.7 Additional requirement forelectrical emergency power system

Emergency generator prime mover shall be equipped with high cooling watertemperature detection systems. Generators shall be equipped with vibration andcooling water leakage detection systems.

Emergency generators shall have self-contained control system independent of theSAS. The self-contained control system shall be supplied from independent batteries.

The trip signal from SAS shall have key switch bypass facilities with alarm to SAS.

2.2.6 NORSOK E-001 chapter 5.2.2 Neutral earthing for systemup to and including 1000 V

Table 2 – System earthing methods to be used. 400/230V shall be TN-S.

Emergency Generator and distribution systems shall be IT system.

2.2.7 NORSOK E-001 chapter 5.3 Distribution systems

Distribution systems on existing platforms are not uniform. Differences are found ingenerated voltages and frequency, distribution voltages and system earthing. D.C.

system voltages also vary from platform to platform. Reference shall be made toCompany for details of the system in use on a particular platform.

NOTE: All new platforms shall follow international standards ref. IEC 61892-2.

All electrical equipment shall be specified at the rated voltage and frequency of thesystem it is connected to. Equipment that does not have the correct ratings shall notbe used. Manufacturers + or - variations of the equipment marked ratings cannot beallowed as a justification for use if the marked ratings do not match the systemratings e.g. 460 volts motors are not to be used on 480 volt systems, 230 voltlighting fittings are not to be used on 240 volt systems, equipment rated for 50 Hzcannot be used on 60 Hz systems. Exception to the above may be allowed by writtenconfirmation from the manufacturer.

Multi Voltage equipment (e.g Motors) shall be equipped with rating plate anddatasheets specifying current for the applied voltage. The Company shall becontacted for clarification should this question arise.

2.2.8 NORSOK E-001 chapter 5.4.4 Socket outlets

Power socket outlet system shall be designed such that any working area can bereached with a 25 m flexible cable without passing through doors or different decks,regardless of Voltage levels.

Socket outlets fed from UPS power supply shall be of such type that normal powerconsumers cannot be connected. The different material numbers are:

• 13246349 SOCKET,SINGLE,UPS,S20,PVS-1,MAXETA

• 13246350 SOCKET,DOUBLE,UPS,S20,PVS-2,MAXETA

• 13246351 SOCKET,SINGLE,UPS,S20,KS-1,MAXETA

• 13246352 SOCKET,DOUBLE,UPS,S20,KS-2,MAXETA

• 13246353 SOCKET,TRIPLE,UPS,S20,KS-3,MAXETA

• 13246354 SOCKET,050299,F/PLUG,MAXETA

Or company approved equal products can be used.

2.2.9 NORSOK E-001 chapter 5.4.5 Temporary workstations

Utility stations shall be located on each deck of the platform so that all areas can bereached with the standard length hoses of 20 m. The extent of utilities at eachstation shall be evaluated. The utility stations shall have certified connections to thefollowing utilities:

• Air; utility and breathing

• Nitrogen

• HP heated fresh water for washdown purposes

• Electrical Power, F&G and Telecom. (Detailed Platform specifications – Ref.4902E, Other references, bullet B):

All utility station shall be fitted with a lighting fixture.

Utility stations shall also be installed on the bridge systems. Requirement to spacingis the same as for platform stations, i.e. all areas can be reached with a standard 20m hoses. Functionalities for the bridge mounted utility stations shall be limited toutility air, power and HP heated fresh water.

See Annex 7.1: Typical utility stations.

2.2.10 NORSOK E-001 chapter 5.6 System study andcalculations

When retrofitting switchboard incomers and feeders, calculations shall be performedto ensure that the arc flash energy is within the switchboards rating.

2.2.11 NORSOK E-001 chapter 5.6.1 Electrical load study

An electrical hazard assessment, ELHAZ, shall be performed during FEL or theexecution phase of any projects if decided by companys Engineering.

2.2.12 NORSOK E-001 chapter 5.6.2 Short circuit calculations

Calculations of arc flash levels in accordance with IEEE 1584 shall be performed todesign the electrical network. No part of the system, except separately enclosedtransformer terminals, shall have levels above 8 cal/cm2 (PPE 2) according to NFPA70E. Where this requirement can not be fulfilled this shall be approved by company.

Calculation shall be performed for all AC systems 230 V and above.

2.2.13 NORSOK E-001 chapter 5.6.6 Cable selection and sizingcriteria

No field cable conductors should have a smaller cross section area smaller than 0,75mm2.

2.2.14 NORSOK E-001 chapter 5.7 Protection

When retrofitting electrical installations platform standard type shall be used forprotective devices.

Test plugs for protective relays for use on feeders

Test plugs for protective relays shall be installed in switchboard fronts containingmain switches and/or feeders. The standardised type is CEE Essailec.

There shall be test plugs for the following applications:

- Voltage -Color Grey

- CT`s -Color Green

- Trip circuits -Color Blue

Trip Function

Where "ESD" tripping is required, the circuits concerned shall have disconnectingdevice which operates/trips circuits “Fail-Safe”. See Annex 6.9: Typical trip functionfor feeder (Contactor controlled).

MCC's shall be segregated into the different ESD levels (BESD, RESD). See section 6.4Switchgear and control gear assemblies.

The remote ESD signal shall de-energize the trip relay.

See Annex 6: Typical functional diagrams for MCC’s.

Arc Flash

System condition for the arc flash detection system for each switchboard shall beincorporated to the PDCS or PMS. The signals shall be transferred to the CCR alarmlist. To be clarified in each project.

When designing arc flash detection systems. It shall be evaluated if the breakerfeeding downstream the relevant distribution board should be tripped.

ESD system battery Ex isolation

The ESD system batteries shall be isolated after a YESD by tripping a fail safeoperated contactor in an EX enclosure connected downstream of the batteries. Blackstart shall be performed by key switch and alarm to SAS.

See Annex 2.3: Operation circuit for ESD battery isolation.

Operating circuit for ESD system battery contactor(s)

ESD power supply, drilling & production platform

Drilling and production platform facilities shall be equipped with its own UPS system,both systems shall be independent each other. See Annex 2.2: 2 x 100% ACuninterruptible power supply system.

Air flow, safety device

All duct heaters shall be safety interlocked with the air flow sensor in the ventilationduct to disconnect heaters on loss of air flow. Motor starter contacts are notacceptable as an interlock device. Manual resetting of the heaters is required due tosafety precautions.

See also TCD 4672.

2.2.15 NORSOK E-001 chapter 5.7.2 Table 5 Generatorprotection

Generators shall be equipped with, vibration and cooling water leakage detectionsystems. The functions shall be alarm and shut down of the prime mover.

2.2.16 NORSOK E-001 chapter 5.7.3 Transformer protection

The column “PDCS alarms” (table 7) shall be in accordance to Alarm philosophy orplatform standard.

Differential protection shall be used on all transformers >= 1000 kVA.

For transformers >= 1000kVA, each leg shall have 3 sets temperature elementswired to a junction box outside the transformer compartment. 1 set shall be spare.Trip shall be fail safe, using 2 independent temperature elements from the same legand separate controllers.

2.2.17 NORSOK E-001 chapter 5.7.4 Motor protection

The column “PDCS alarms” (table 8) shall be in accordance to Alarm philosophy orplatform standard.

Bimetal protection device shall not be used.

Electrical motors larger than 10 kW located in exposed areas shall be equipped withanti-condensation heater. A clearly marked (blue) light indicating heater status shallbe located on the motor starter front panel.

Anti-condensation operating conditions1:

• Heater shall be on when the motor is not running.

• Heater shall be disconnected when the motor is running

• Heater shall be on when the motors main switch in MCC is turned off.

• Heater shall be disconnected when the drawer has been pulled out of normaloperating position.

• Heater shall be disconnected during RESD.

1 Shall be applicable for new installations, for existing installations see platformstandard.

Anti-condensation heaters in Electrical motors shall have Earth fault protection withlocal indication and common alarm to PDCS.

Motor starters shall have a thorough coordination. The type of coordination used shallbe agreed upon.

Cooling fans for control cabinet shall be marked with unique TAG number.Maintenance program shall be developed specifying replacement after 5 years ofoperation.

2.2.18 NORSOK E-001 chapter 5.8 Lighting system Earthleakage protection

Normal lighting services shall be fitted with earth fault protection with a ratedsensitivity of 30 mA.

Emergency lighting circuits and other important equipment fed from emergencydistribution boards will only require a common alarm (CCR) for earth leakage.

Local sub distribution board should be avoided.

The percentage usage of Normal and Emergency lights shall be decided in eachproject and area.

2.2.19 NORSOK E-001 chapter 5.8.1 General

Helideck lighting and obstruction lights shall be according to Luftfartstilsynets"Forskrift om kontinental-sokkelflyging - ervervsmessig luftfart til og frahelikopterdekk på innretninger og fartøy til havs" (BSL D 5-1). Sea surface lightingshall be powered from the emergency generator.

2.2.20 NORSOK E-001 chapter 5.8.2 Lighting equipment Gaugeglass, panel lights

Where general illumination is insufficient for the reading of gauge glass, panels etc.then these shall be provided with dedicated local fixtures classified for the pertinentarea.

ESD & emergency release buttons shall be located inside illuminated weatherprotected enclosures, fed from the emergency generator.

2.2.21 NORSOK E-001 chapter 6.2.1.2 Motor rating, Ex-protection and enclosure

Low voltage motors shall use the following ex protection based on area classification.

• Zone 2 - Ex N

• Zone 1 - Ex de

Starting torque shall be adequate for each particular application. Ex-protected motorsshall be star connected, or delta if protected by motor protection with phase failuresensitivity.

Motors shall be sandblasted and painted according to NORSOK M-501 Annex A.1. Fancowls shall be made of GRP, galvanized or stainless steel.

Additional rating plate shall be installed inside the terminal box. A separate labelfixed to the motor shall indicate bearing type. Where lubricatable bearings are used,the label shall also indicate lubrication type, interval and amount. Bearings lubricatedfor life shall be used for frame size <=160.

Vertically installed motors with DE shaft pointing down shall have canopy above thefan cowl. All external bolts and nuts shall be SS316.

Aluminium motors shall be approved by company.

2.2.22 NORSOK E-001 chapter 6.2.1.3 Local control stations

Local emergency stop is preferred push-to-operate. On existing installations useplatform standard.

2.2.23 NORSOK E-001 chapter 6.2.1.3 Local control stations

Switchboards shall be segregated so that there is no danger for an arc flash movingfrom the power section to a control or cable termination section. Arc flash shall beisolated and limited to the compartment where it occurs.

The MCC Cubicle and cable sections shall be designed for termografic inspection orthermo strips.

MCC's shall be segregated into the different ESD levels (BESD, RESD).

MCC’s and distribution panels shall not be installed in classified areas. Ref. IEC61892-7.

All units communicating with SAS shall be fed from two independent UPS according to6249 (Rev.05) 4.2.3.

Key lockers

A key locker shall be provided in switchgear areas for use in conjunction with lock-outisolation procedure. For further details see procedure 3599.

2.2.24 NORSOK E-001 chapter 6.5.2 Requirement

Incomers on sub-distribution boards shall be equipped with ampere- and volt meters.

Contact company for clarification about what instruments are needed.

2.2.25 NORSOK E-001 chapter 6.6 Semiconductor converters

For Adjustable Speed Drive Systems (ASDS) see above NORSOK and "Brukerguide forNEK EN 60079-14 Del 3 Installasjoner". IFEA ISBN Nr: 82-91719-10-1.

When several large ASDS (>20% of generator capacity) with three windingtransformers are connected, consider different phase connection (clock settings) toreduce harmonic distortion.

2.2.26 NORSOK E-001 chapter 6.10 Trace and surface heating

Materials shall be selected and installed strictly according to the manufacturersrequirements. Be aware that certain fastening tape cannot be used on stainless steel.For installation details see Annex 3: Trace heating installation details.

Marking of the joints location shall be located on the cladding/insulation for all traceheating splices.

In classified areas, all splices shall be performed in Ex Junction boxes.

2.2.27 NORSOK E-001 chapter 9.1.1 Equipment earthing andbonding

Earth boss may be fixed to platform structure by use of an alternative method otherthan welding.

2.2.28 NORSOK E-001 chapter 9.2.1 Cable and wiring (general)

Following cables shall be Fire-resistant:

Cables for emergency power supply and consumers connected to thissystem

Cables for safety systems, including the following:

1. Fire alarm circuits

2. Deluge circuits

3. Fire-damper circuits

4. Fire & Gas circuits

5. Gas release circuits (inergen-CO2)

6. ESD circuits

7. Fire pump start circits

8. P.A Communication equipment

9. Equipment for Evacuation

10. HVAC system where this is used to provide Safe Area Classification

11. Parts of PSD to be in operation during an emergency (to be evaluated on acase by case base).

Single core cables are preferred at cross-sections larger than 150 mm2.

2.2.29 NORSOK E-001 chapter 9.2.2 Cable segregation

Cable segregation shall be according to IEC 61892-6(2013) ch. 6.2.

2.2.30 NORSOK E-001 chapter 9.2.3 Cable routing

Segregation of cables in A and B routing shall be evaluated case by case andreviewed by company technical responsible (TA).

2.2.31 NORSOK E-001 chapter 9.2.5 Cable cleating andstrapping

Splices shall be according to IEC 61892-7 (2007) ch. 7.9 and IEC 61892-6 (2013) ch.6.4.

2.2.32 NORSOK E-001 chapter 9.2.7 Cable gland selection

Glands > M25 shall be of metal.

A through type gland shall be used where braided armour cables are used togetherwith all other non-Ex(d) certified equipment.

Armour clamping gland limitations

The supply circuit shall be terminated using a through gland (not armour clamping).

Adapter, reducers

Adapters and reducers shall have the same rating and certification as the equipmentthey are used on. Where plastic glands are used, adapters and reducers should alsobe of plastic. Where metal glands are used, adapters and reducers shall also be ofmetal.

2.2.33 NORSOK E-001 chapter 9.2.8 Cable Termination

Terminals of tension clamp type are accepted. Terminals of insulation displacementconnection type (IDC) are not acceptable. Screw terminals shall be torqued for allsizes. All terminals shall be of corrosion resistant type like copper or copper alloys.

All cable conductors shall be terminated using ferrules or compression lugs exceptwhere the terminal approval or user guide specifically advise against it.

2.2.34 NORSOK E-001 chapter 9.10 Test of completedinstallation

High voltage cables shall be tested using VLF (0,1 Hz) according to the followingtable.

System Voltage (Un)Phase Voltage (Uph) Test voltage (3 x Uph) Duration

2,4 kV 1,39 kV 4 kV 1 hour

6 kV 3,5 kV 10 kV 1 hour

6,6 kV 3,8 kV 11 kV 1 hour

13,8 kV 8 kV 24 kV (20 kV is ok) 1 hour

33kv 19kv 47 – 57kv (2,5 – 3 x Uph) 1 hour

For more details see IEC 60060-3 (2006) chapter 9 (VLF)

An installation tester (Eurotester) shall be used on every new installation,modification and when testing earth-leakage circuit-breaker/earth fault detector.

2.2.35 NORSOK E-001 chapter 9.12 Marking and labeling

All marking and labeling shall be according to COPENS doc number 2169.

Emergency and Safety warning signs for equipment shall be in both Norwegian andEnglish.

Emergency shock treatment signs in Norwegian and English shall be installed in MCCand control rooms. Ref. FSE.

Key/Main single line diagrams shall be displayed in all MCC & switch gear rooms.Drawing shall be framed.

Signs for arc flash levels shall be according to Annex 8.1: Arc Flash.

2.2.36 NORSOK E-001 chapter 9.12.3 Equipment

All distribution panels shall contain a circuit index permanently secured, with aunique document number registered in SAP.

2.2.37 NORSOK E-001 chapter 9.12.4 Cables

Cable identification labels outdoors, in exposed- and wash down areas shall beconvex embossed stainless steel. All sharp edges and corner must be removed.Plastic labels are accepted indoors in dry and clean locations.

Non-blue cables used as IS cable shall be marked with a blue sleeve in bothterminations and both sides of all penetrations(ducts, MCT’s etc.).

2.2.38 NORSOK E-001 chapter 10.1.1 Static electricity

In rooms where equipment is sensible to static electricity or the danger of beingexposed to electrical current is present, antistatic insulating floor mats shall be usedif the floor is not prepared for this.

2.2.39 NORSOK E-001 chapter 10.2.2 Ex requirements

Ex(d) enclosures with direct entry shall not be used. If Ex(d) is a technicalrequirement all entries shall be in an attached Ex (e) enclosure (Ex de).

3 Other Requirements not related toNORSOK E-0013.1 Requirements

3.1.1 Ventilation, alarms for battery rooms

Air flow is to be monitored by an air flow sensor and not by an auxiliary contact onthe fan motor starter. An alarm shall be given on ventilation failure & the boostcharge feature shall be inhibited on all chargers feeding batteries within the room.

3.1.2 Batteries

Starting batteries for fire pumps, emergency generators and other mechanicalequipment shall not be mounted on the unit. They shall be allocated in a clean, drylocation with suitable mechanical protection. Vendor recommendations for care andmaintenance of batteries shall be displayed in a prominent position in the batteryroom. This shall also include activation date for liquid filled batteries, and fabricationdate for valve regulated (VR) batteries.

Battery and battery connections shall be protected from falling objects andagainst short circuit. Batteries shall be sustainable for float chargeoperation, boost charging are no longer used. The batteries shall be sizedfor 100% capacity at 5 °C. For lead-acid stationary batteries a C0,5 capacitycurve to 1,8 V/cell shall be used.

3.1.3 Separation, different types of battery

Nickel-cadmium batteries and lead acid batteries should not normally be located inthe same battery room. However, on upgrading projects where existing batteryrooms are utilized, batteries with different kinds of electrolyte may be placed in thesame room providing the batteries are mounted on separate battery racks. Each rackis to be clearly marked as to which type of electrolyte it contains and to be spaced sofar from each other that no misunderstanding about the types is possible.

Open lead/acid batteries are preferred in battery rooms because of life-time vs cost.

3.1.4 Battery rooms

Air supply to battery rooms shall be dry to avoid condensation. The temperature inbattery room shall be 20 °C.

All walking areas in battery rooms to be covered with non-slip antistatic rubbermatting. An emergency eye wash station shall be installed in battery rooms or areaswhere battery electrolyte is being handled or mixed, or personnel should have intheir possession, small personal eye wash bottles. The room shall be equipped withrubber gloves, apron and eye protection.

All materials used for battery rooms and lockers shall be corrosion resistant orprotected against corrosion by suitable painting. The battery short circuit protectionswitchgear (typically an Ex(de) circuit breaker) shall be installed in the nearest roomadjacent to the battery room.

3.1.5 NORSOK E-001 14 Handbok

An installation handbook for personnel working on projects and offshore installationsshall be made.

3.1.6 Junction boxes and panels

Junction boxes and panels in exposed area shall have drain plug.Junction boxes andpanels above 50 L in exposed areas shall be equipped with anti-condensation heatersand drain plug. Anti-condensation heaters shall be disconnected during ESD. Theanti-condencation heater shall not be placed in the lowest point of the enclosure.

Materials inside junction box in exposed area shall be non-corrosive.

3.1.7 Equipment to be taken permanently out of service

See guideline: 2805 "Utstyr som settes permanent ut av drift".

3.1.8 Software PLC program

For systems and equipment using local internal software, a copy of the new orrevised program shall be delivered to the SV SAS Supervisor. The SV SAS supervisor

shall have a system for storing the program either in a safe or at common disk drive.Example of equipment and system can be PCDS software, Frequency convertersoftware etc. Deviation for handover of a copy can be given by the Control systemresponsible if a change or updating of program only can be performed by Vendor.

3.2 Cable transits, typical detailsTransits shall be of the type ROXTEC (or equal) and shall be installed according tomanufacturer’s instructions. Other types of transit frame e.g. Hawke and Brattbergcan equally be used. Between stay plates insertion blocks from same manufacturershall be used.

NOTES:

1. Transit used with single core AC-cables to have non-magnetic stay plates.

2. All transit frames to be installed according to vendor instructions.

3. Transit frames, including compression plates, bolts and end packing to bestainless steel. Frames with controlled ventilation on both sides can be ofother material.

4. Cable number tags are to be fixed to every cable on both sides of everytransit or penetration. They are to be located so that if insulation is used, itdoes not obscure the tag.

5. When modification is done on old transits, evaluate replacement of all blocksin the same row/frame.

6. Halogen free insert modules shall be used.

7. To accomplish EMC-protection, EMC-insert modules must be used. Two typesof insert modules are available – double sided water protection and singlesided water protection. The installation must strictly be done acc. to vendorsinstructions.

8. When EMC-insert modules are used, it is important that tension in the cable istaken in to consideration before dismantling both sides of the mantle. If not,the dismantled area might be too long.

9. Bolted cable transists can be used to avoid hot work. Proper precautions shallbe taken to avoid corrosion between bolted flange and structure.

AppendicesAnnex 2: Uninterruptible power supply system

Annex 2.1: 2 x 100% DC uninterruptible power supply system

Annex_2-1.pdf

Annex 2.2: 2 x 100% AC uninterruptible power supply system

Annex_2-2.pdf

Annex 2.3: Operation circuit for ESD battery isolation

Annex_2-3.pdf

Annex 3: Trace heating installation details

Annex 3.1: Heat tracing details A,B

Annex_3-1.pdf

Annex 3.2: Heat tracing details C,D

Annex_3-2.pdf

Annex 3.3: Heat tracing details E,F

Annex_3-3.pdf

Annex 3.4: Heat tracing details G

Annex_3.4.pdf

Annex 3.5: Heat tracing details H,J

Annex_3-5.pdf

Annex 4: Glanding and Earthing details

Annex 4.1: Glanding and Earthing miscellaneous details J

Annex_4-1.pdf

Annex 5: Earthing and Bonding

Annex 5.1: Earthing detail A

Annex_5-1.pdf

Annex 5.2: Earthing detail B

Annex_5-2.pdf

Annex 5.3: Earthing detail C

Annex_5-3.pdf

Annex 5.4: Earthing detail D

Annex_5-4.pdf

Annex 5.5: Earthing detail E and F

Annex_5-5.pdf

Annex 5.6: Earthing detail G

Annex_5-6.pdf

Annex 5.7: Earthing detail H

Annex_5-7.pdf

Annex 5.10: Earthing symbols

Annex_5-10.pdf

Annex 5.11: Protective Earthing for power systems sheet 1

Annex_5-11.pdf

Annex 5.12: Protective Earthing for power systems sheet 2

Annex_5-12.pdf

Annex 5.13: Protective/Instrument/ I.S earthing for lightcurrent systems sheet 1

Annex_5-13.pdf

Annex 5.14: Protective/Instrument/ I.S earthing for lightcurrent systems sheet 2

Annex_5-14.pdf

Annex 5.15: Earthing and Bonding principles typicalarrangement

Annex_5-15.pdf

Annex 6: Typical functional diagrams for MCC’s

Annex 6.1: 6,6 kV Switchboard motor starter controlled fromPCS

Annex_6-1.pdf

Annex 6.2: 690V Switchboard motor starter controlled fromPCS

Annex_6-2.pdf

Annex 6.3: 690V Switchboard motor starter controlled fromPackages

Annex_6-3.pdf

Annex 6.4: 690V Switchboard frequency converter controlledfrom PCS

Annex_6-4.pdf

Annex 6.5: 690V Switchboard contactor feeder controlled fromPCS

Annex_6-5.pdf

Annex 6.6: 690V Switchboard tyristor feeder controlled fromPCS

Annex_6-6.pdf

NOTE:

For information about TSH and TSHH, see TCD document 4672 ”Heating, Ventilationand Air condition”.

Annex 6.7: 690V Switchboard heater feeder controlled fromPCS

Annex_6-7.pdf

NOTE:

For information about TSH and TSHH, see TCD document 4672 ”Heating, Ventilationand Air condition”.

Annex 6.8: 690V Switchboard heater feeder controlled fromPackages

Annex_6-8.pdf

NOTE:

For information about TSH and TSHH, see TCD document 4672 ”Heating, Ventilationand Air condition”.

Annex 6.9: Typical trip function for feeder (Contactorcontrolled)

Annex_6-9.pdf

Annex 6.10: Typical heater control TSH and TSHH

Annex_6-10.pdf

Annex 7: Field Equipment

Annex 7.1: Typical utility stations

For more details about new utility stations see document: BD01-PP-G-00036

Annex_7-1.pdf