LV and MV polymeric insulated cables for use by distribution and generation utilities Specification for distribution cables with extruded insulation for rated voltages of 11 kV to 33 kV - Three-core 11 kV cables (Implementation of HD 620)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-30-2016

Publisher

British Standards Institution

This section of BS7870 specifies requirements for the construction, dimensions and mechanical and electrical properties of 6.35/11(12) kV three-core cables having either aluminium or copper conductors, cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR) extruded insulation, a copper wire metallic screen and an oversheath of one of the following compounds. medium density polyethylene (MDPE) compound typeDMP 5 (TypeA cables); thermoplastic compound typeDMZ 4 for cables having a low emission of smoke and corrosive gases when affected by fire (TypeB cables). This section of BS7870 is applicable to cables that are designed for a maximum continuous conductor operating temperature of 90°C and for a maximum short-circuit conductor temperature of 250°C. NOTE Information to be supplied by the purchaser, and items to be agreed between the purchaser and the manufacturer at the time of enquiry and/or order are given in AnnexB. Guidance on type testing is given in AnnexC.

Committee	GEL/20/16
DocumentType	Standard
Pages	28
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 7870-4.20:1999