BS 7870-3.12:2011
Current
The latest, up-to-date edition.
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
Hardcopy , PDF
English
31-08-2012
Foreword
1 Scope
2 Normative references
3 Voltage designation
4 Phase conductors
5 Insulation
6 Assembly of cores
7 Bedding for 3-phase cables
8 Concentric neutral/earth conductor
9 Oversheath
10 Marking
11 End sealing
12 Dimensions
13 Tests
14 Routine tests
15 Sample tests
16 Type tests
Annexes
Annex A (informative) - Guide to selection and use
of cables
Annex B (normative) - Test for shrinkage of oversheath
on cable
Bibliography
Defines requirements for the construction, dimensions and mechanical and electrical properties of concentric copper wire combined neutral/earth (CNE) service cables having a rated voltage of 0.6/1(1.2) kV.
| Committee |
GEL/20/16
|
| DevelopmentNote |
To be read in conjunction with BS 7870-1(2011) & BS 7870-2(2011). Supersedes BS 7870-3.12(2001) and 11/30214061 DC. (12/2011)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
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