BS 7870-4.20:2011+A1:2016 - 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)

BS 7870-4.20:2011+A1:2016

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)

Status : Current   Published : December 2011

Format
PDF

Format
HARDCOPY



This section of BS 7870 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.

  1. medium density polyethylene (MDPE) compound type DMP 5 (Type A cables);

  2. thermoplastic compound type DMZ 4 for cables having a low emission of smoke and corrosive gases when affected by fire (Type B cables).

This section of BS 7870 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 Annex B. Guidance on type testing is given in Annex C.




Standard NumberBS 7870-4.20:2011+A1:2016
TitleLV 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)
StatusCurrent
Publication Date31 December 2011
Confirm Date01 June 2016
Normative References(Required to achieve compliance to this standard)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
Informative References(Provided for Information)HD 603 S1, HD 605 S2, HD 620 S2, HD 626 S1, HD 627 S1, IEC 60502-2
ReplacesBS 7870-4.20:1999
Amended ByCorrigendum, August 2012. Amendment, June 2016. Amends and replaces BS 7870-4.20:2011.
Draft Superseded By11/30214077 DC16/30339584 DC
DescriptorsElectric cables, Insulated cables, Sheathed cables, Power cables, Medium voltage, Low voltage, Electric conductors, Polymers, Plastics and rubber technology, Electric power distribution lines, Electrical insulation, Extruding, Rated voltage, Multicore cables, Polyethylene, Cross-linked materials, Ethylene-propylene rubber, Aluminium, Copper, Steels, Temperature, Voltage, Designations, Design, Circular shape, Stranded conductors, Size, Dimensions, Electric screens, Electrical insulation devices, Cable sheaths, Marking, Seals, Thickness measurement, Electrical testing, Resistance measurement, Partial discharges, Type testing, Elongation at fracture, Ageing tests, Thermal testing, Shrinkage tests, Compatibility, Bend testing
ICS29.060.20
CommitteeGEL/20/16
ISBN978 0 580 93807 8
PublisherBSI
FormatA4
DeliveryYes
Pages28
File Size1.441 MB
Price£182.00


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