DANSK DSF/IEC 61892-7 ED4 PDF

This part of IEC 61892 provides requirements for hazardous area classification and selection of electrical equipment and installation in hazardous areas in mobile and fixed offshore units including pipeline, pumping or 'pigging' stations, compressor stations and single buoy moorings, used in the offshore petroleum industry for drilling, production, accommodation, processing, storage and offloading purposes. It applies to all installations, whether permanent, temporary, transportable or personal, to AC installations and DC installations without any voltage level limitation. Referenced equipment standards may give voltage level limitations. The standard is based on requirements from standards developed by IEC TC 31 regarding area classification and requirements to installations in hazardous areas and gives additional requirements required for installations on mobile and fixed offshore units. This document specifies requirements such as those of: – area classification; – electrical systems; – selection of electrical equipment; – cables and wiring systems; – ventilation; – ventilation requirement for battery compartments; – inspection, maintenance, repair and overhaul. This document gives information to topics such as: – gas detection systems; – electrical installations in extremely low ambient temperature. This standard does not apply to: – fixed equipment for medical purposes; – electrical installations of tankers; – control of ignition sources other than those created by electrical equipment. NOTE 1 – For medical rooms, IEC 60364-7-710 provides specific requirements. Requirements for tankers are given in IEC 60092-502. NOTE 2 – Guidance on protection of non-electrical equipment can be found in ISO 80079-36, ISO 80079-37 and MODU Code 2009, 6.7