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sklademVydáno: 2012-08-31
BS 7870-3.12:2011
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 combined neutral and earth copper wire 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 7870-3.12:2011 |
| Počet stran: | 22 |
| Vydáno: | 2012-08-31 |
| ISBN: | 978 0 580 78835 2 |
| Status: | Standard |
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BS 7870-3.12:2011
This standard BS 7870-3.12:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities is classified in these ICS categories:
- 29.060.20 Cables
ThissectionofBS7870specifiesrequirementsfortheconstruction,dimensions andmechanicalandelectricalpropertiesofconcentriccopperwirecombined neutral/earth(CNE)servicecableshavingaratedvoltageof0.6/1(1.2)kV.Itis applicabletocablesthat,whenassessedbythespecifiedtests,producelower levelsofsmokeandcorrosivegasesunderexposuretofirethancables conformingtoBS7870-3.11.
Itspecifiesrequirementsforthefollowingtypesofcable:
singlephaseor3-phase;
strandedcopperorsolidaluminiumconductors;
XLPEinsulationandthermoplasticoversheathwithlowemissionofsmoke andcorrosivegaseswhenaffectedbyfire.
ThissectionofBS7870isapplicabletocablesthataredesignedforamaximum continuousconductoroperatingtemperatureof90°Candforamaximumshort circuitconductortemperatureof250°C.