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sklademVydáno: 2012-08-31
BS 7870-3.22:2011
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 split concentric cables with copper or aluminium conductors, having low emission of smoke and corrosive gases when affected by fire
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| Označení normy: | BS 7870-3.22:2011 |
| Počet stran: | 24 |
| Vydáno: | 2012-08-31 |
| ISBN: | 978 0 580 78837 6 |
| Status: | Standard |
DESCRIPTION
BS 7870-3.22:2011
This standard BS 7870-3.22:2011 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 split concentric service cables 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 7870-3.21.
It specifies requirements for the following types of cable:
single phase or 3-phase;
stranded copper or solid aluminium conductors;
XLPE insulation and PVC oversheath.
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.