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IEC 61892 6 2013 contains provisions for electrical installation in mobile and fixed offshore units including pipeline pumping or pigging stations compressor stations and exposed location single buoy moorings used in the offshore petroleum industry for drilling processing and for storage purposes It applies to all installations whether permanent temporary transportable or hand held to AC installations up to and including 35 000 V and DC installations up to and including 1 500 V AC and DC voltages are nominal values This standard does not apply to electrical installations in rooms used for medical purposes or in tankers This edition includes the following significant technical changes with respect to the previous edition br a Table 1 size of earth continuity conductors has been replaced with the table in IEC 61892 4 br b The requirements for installation of batteries has been rewritten in order to distinguish better between batteries of the vented type and VRLA sealed type br c An informative annex regarding cable termination has been added br d The applicability for DC installations has been increased from 750 V to 1 500 V in accordance with Part 1 of the series