The Norwegian Oil Industry Association (OLF) and Federation of Norwegian Manufacturing Industries (TBL). Rev. 3, 2001-03-01. 31p. This NORSOK standard contains provisions for electrical installations at all voltages and is intended to enable safety in the design of electrical systems, selection and use of electrical equipment for generation, storage,
distribution and utilisation of electrical energy for all purposes in offshore units which are being used for the purpose of exploration or exploitation of petroleum resources.