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>BSI Standards >29 ELECTRICAL ENGINEERING>29.060 Electrical wires and cables>29.060.20 Cables>BS 7870-3.50:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated, copper wire waveform or helical concentric cables with solid aluminium conductors, having low emission of smoke and corrosive gases when affected by fire
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immediate downloadReleased: 2012-08-31
BS 7870-3.50:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated, copper wire waveform or helical concentric cables with solid aluminium conductors, having low emission of smoke and corrosive gases when affected by fire

BS 7870-3.50:2011

LV and MV polymeric insulated cables for use by distribution and generation utilities Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated, copper wire waveform or helical concentric cables with solid aluminium conductors, having low emission of smoke and corrosive gases when affected by fire

CURRENCY
180 EUR
Standard number:BS 7870-3.50:2011
Pages:22
Released:2012-08-31
ISBN:978 0 580 78839 0
Status:Standard
DESCRIPTION

BS 7870-3.50:2011


This standard BS 7870-3.50:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities is classified in these ICS categories:
  • 29.060.20 Cables

This section of BS 7870 specifies requirements for the construction, dimensions and mechanical and electrical properties of XLPE insulated, concentric copper wire screened waveform or helical cables with solid aluminium core conductors having a rated voltage of 0.6/1(1.2) kV. It is applicable to cables that, when assessed by the specified tests, produce lower levels of smoke and corrosive gases under exposure to fire than cables conforming to BS 7870-3.11 or to BS 7870-3.40.

It specifies requirements for the following types of cable:

  • 3-core, 3-phase, with XLPE insulation, a concentric neutral/earth conductor of copper wires on a synthetic bedding and a thermoplastic oversheath;

  • 4-core, 3-phase and a separate neutral, with XLPE insulation, a concentric earth conductor of copper wires on a synthetic bedding, and a thermoplastic oversheath.

This section of BS 7870 is applicable to cables that are designed for a maximum continuous conductor operating temperature of 80 °C and for a maximum short circuit conductor temperature of 250 °C.


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