scope:

This NORSOK standard contains provisions for electrical installations at all voltages to provide safety in the design of electrical systems, selection, and use of electrical equipment for generation, storage, distribution and utilization of electrical energy for all purposes in offshore units which are being used for the purpose of exploration or exploitation of petroleum resources.

This NORSOK standard does not apply for the electrical installations in rooms used for medical purposes or in tankers.

This NORSOK standard applies to all electrical installations. The installation may be 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.

NOTE 1 This NORSOK standard is applicable for the voltages stated above, even if a different voltage limit may be given in some of the parts in the IEC 61892 series of standards. It is expected that the voltage levels in the IEC 61892 series of standards will be corrected as part of the maintenance cycle of this IEC standard.

NOTE 2 Where this NORSOK standard does not give guidelines for systems, equipment and installation for higher voltage level than 11 kV, reference is made to relevant IEC standards.