GB/T 25444.7-2010 Mobile and fixed offshore units-Electrical installations—Part 7:Hazardous areas

Scope

This part of GB/T 25444 (hereinafter referred to as this part) specifies the classification of dangerous areas in mobile and fixed offshore facilities and the selection requirements for electrical equipment in dangerous areas, and is applicable to drilling, production, processing, and storage in the offshore oil industry, including pipelines, pump stations or in-pipe cleaning stations, air compressor stations, and exposed single-buoy mooring facilities.
This part applies to all electrical devices (with AC and DC voltages being the nominal voltages) within dangerous areas with an AC voltage not exceeding 35,000 V and a DC voltage not exceeding 750 V, whether permanent, temporary, mobile, or handheld.
This part does not apply to medical electrical devices in cabins or electrical devices on liquid cargo ships.

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