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
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.
| SDO | BSI: British Standards Institution |
| Document Number | 7870-3.12 |
| Publication Date | Aug. 31, 2012 |
| Language | en - English |
| Page Count | |
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| Supercedes | |
| Committee | GEL/20/16 |
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