Standards Development

Scope

This document is applicable to system design of electrical installations and equipment in mobile and fixed offshore units including pipeline, pumping or "pigging" stations, compressor stations and single buoy moorings, used in the offshore industry for drilling, production, accommodation, processing, storage and offloading purposes.

It applies to all installations, whether permanent, temporary, transportable or hand-held, to AC installations and DC installations, without any voltage level limitation. Referenced equipment standards may give voltage level limitations.

This document specifies requirements such as those concerning

–        sources of electrical power for manned and unmanned units,

–        system earthing, both for low-voltage and high-voltage installations,

–        interface for electric transmission systems with power supplied from shore, between interconnected offshore units, and with power supplied by offshore units to subsea installations,

–        interface for electric transmission systems with power supplied from independent offshore power plant with renewable sources (i.e. wind farm)

–        distribution systems,

–        cables and wiring systems,

–        system studies and calculations,

–        protection against electrical faults,

–        lighting,

–        energy control, monitoring and alarm systems, and

–        turret/swivel.

This document gives information and guidance on topics such as

–        applicable examples of HVDC VSC technology, and

–        guidelines for design of unmanned units

–        alternative sources of electrical power

–        guidelines for illumination level.

This document does not apply to

–        fixed equipment for medical purposes,

–        electrical installations of tankers, and

–        control of ignition sources other than those created by electrical equipment.

NOTE 1 Requirements for medical rooms are given in IEC 60364-7-710

NOTE 2 Requirements for tankers are given in IEC 60092-502.

NOTE 3 Requirements for protection of non-electrical equipment are given in e.g. ISO 80079-36, ISO 80079-37 and IMO 2009 MODU Code, 6.7.