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BS 7870-3.50:2011

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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
Available format(s)

Hardcopy , PDF

Superseded date

15-12-2023

Language(s)

English

Published date

31-08-2012

Foreword
1 Scope
2 Normative references
3 Voltage designation
4 Core conductors
5 Insulation
6 Assembly of cores
7 Concentric conductor
8 Oversheath
9 Marking
10 End sealing
11 Dimensions
12 Tests
13 Routine tests
14 Sample tests
15 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 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.

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.

Committee
GEL/20/16
DevelopmentNote
To be read in conjunction with BS 7870-1(2011) & BS 7870-2(2011). Supersedes BS 7870-3.50(2005) and 11/30214071 DC. (12/2011)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

HD 627 S1:1996/A2:2005 MULTICORE AND MULTIPAIR CABLES FOR INSTALLATION ABOVE AND BELOW GROUND
BS EN 61034-2 : 2005 MEASUREMENT OF SMOKE DENSITY OF CABLES BURNING UNDER DEFINED CONDITIONS PART 2: TEST PROCEDURE AND REQUIREMENTS
BS EN 61034-1 : 2005 MEASUREMENT OF SMOKE DENSITY OF CABLES BURNING UNDER DEFINED CONDITIONS - PART 1: TEST APPARATUS
BS EN 60332-1-2 : 2004 TESTS ON ELECTRIC AND OPTICAL FIBRE CABLES UNDER FIRE CONDITIONS - PART 1-2: TEST FOR VERTICAL FLAME PROPAGATION FOR A SINGLE INSULATED WIRE OR CABLE - PROCEDURE FOR 1 KW PRE-MIXED FLAME (IEC 60332-1-2:2004)
BS 7870-2:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities Methods of test
HD 605 S2:2008/corrigendum:2010 ELECTRIC CABLES - ADDITIONAL TEST METHODS
HD 620 : 2010 DISTRIBUTION CABLES WITH EXTRUDED INSULATION FOR RATED VOLTAGES FROM 3,6/6 (7,2) KV UP TO AND INCLUDING 20,8/36 (42) KV
BS EN 50267-2-1:1999 Common test methods for cables under fire conditions. Tests on gases evolved during combustion of materials from cables. Procedures Determination of the amount of halogen acid gas - Determination of the amount of halogen acid gas
BS EN 60228:2005 Conductors of insulated cables
BS EN 60811-1-3:1995 Insulating and sheathing materials of electric cables. Common test methods. General application Methods for determining the density. Water absorption tests. Shrinkage test
HD 603 S1:1994/A3:2007 DISTRIBUTION CABLES OF RATED VOLTAGE 0,6/1 KV
BS EN 60332-3-24:2009 Tests on electric and optical fibre cables under fire conditions Test for vertical flame spread of vertically-mounted bunched wires or cables. Category C
HD 626 S1:1996/A2:2002 OVERHEAD DISTRIBUTION CABLES OF RATED VOLTAGE U[O]/U(U[M]): 0,6/1 (1,2) KV
BS EN 60811-1-2:1995 Insulating and sheathing materials of electric cables. Common test methods. General application Thermal ageing methods
BS 7870-3.11:2011 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
BS 7870-1:2011 LV and MV polymeric insulated cables for use by distribution and generation utilities General

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