BS 7870-4.20:2011+A1:2016

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BS 7870-4.20:2011+A1:2016 specifies requirements for the construction, dimensionsand mechanical and electrical properties of 6.35/11(12) kV three-core cableshaving either aluminium or copper conductors, cross-linked polyethylene (XLPE)or ethylene propylene rubber (EPR) extruded insulation, a copper wire metallicscreen and an oversheath of one of the following compounds.

• medium density polyethylene (MDPE) compound type DMP 5 (Type Acables);
• thermoplastic compound type DMZ 4 for cables having a low emission ofsmoke and corrosive gases when affected by fire (Type B cables).

This section of BS 7870 is applicable to cables that are designed for a maximumcontinuous conductor operating temperature of 90 °C and for a maximumshort-circuit conductor temperature of 250 °C.
NOTE Information to be supplied by the purchaser, and items to be agreedbetween the purchaser and the manufacturer at the time of enquiry and/or orderare given in Annex B. Guidance on type testing is given in Annex C.

To be read in conjunction with BS 7870-1:2011,BS 7870-2:2011

Cross References:
BS 3988:1970+A3:1989
BS 7870-1
BS 7870-2
BS EN 50267-2-1
BS EN 60228:2005
BS EN 60332-1-2:2004
BS EN 60332-3-24:2009
BS EN 60811-1-2
BS EN 60811-1-3
BS EN 60811-2-1
BS EN 61034-1
BS EN 61034-2
HD 603 S1
HD 605 S2
HD 620 S2
HD 626 S1
HD 627 S1
IEC 60502-2

Incorporates the following:
Corrigendum, August 2012. Amendment, June 2016. Amends and replaces BS 7870-4 .20:2011

Product Details

Published:

12/31/2011

ISBN(s):

9780580938078

Number of Pages:

28

File Size:

1 file , 1.4 MB

Product Code(s):

30339585, 30339585, 30339585

Note:

This product is unavailable in United Kingdom