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BS 6972:1988

Current
Current

The latest, up-to-date edition.

Specification for general requirements for luminaire supporting couplers for domestic, light industrial and commercial use
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-06-1988

Foreword
Committees responsible
Specification
1. Scope
2. Conditions of use
3. Definitions
4. General requirements
5. Requirements for type testing
6. Rating
7. Classification
8. Marking and information
9. Dimensions
10. Creepage distances and clearances
11. Accessibility of live parts
12. Provision for earthing
13. Construction
14. Terminals and terminations
15. Screws, current-carrying parts and connections
16. Provision for cables and cords
17. Resistance to ageing
18. Resistance to moisture and humidity
19. Insulation resistance and electric strength
20. Temperature rise
21. Load making and breaking
22. Mechanical strength
23. Resistance to heat
24. Resistance to abnormal heat and to fire
25. Resistance to tracking
26. Resistance to excessive residual stresses and to
    rusting
Tables
1. Creepage distances and clearances
2. Screw torque values
3. Application of glow-wire test
Figures
1. Pendulum impact test apparatus
2. Tumbling barrel
3. Application of test load
4. Ball pressure test apparatus

Requirements for luminaire supporting couplers (LSCs) comprising LSC plugs and LSC outlets for use in final circuits rated at not more than 16 A and not more than 250 V a.c., the electrical load connected to any one LSC plug not exceeding 6 A.

This British Standard specifies requirements for luminaire supporting couplers (LSCs) comprising LSC plugs and LSC outlets for use in final circuits rated at not more than 16 A, where the supply voltage does not exceed 250 V a.c. and the electrical load connected to any one LSC plug does not exceed 6 A.

The requirements specified in this standard have particular reference to safety in normal use.

LSC outlets are intended for use with cables complying with BS 6004 or BS 6007, having copper conductors.

LSC plugs which are not integral with a luminaire are intended for use with flexible cords complying with BS 6141 or BS 6500, having a cross-sectional area from 0.5 mm2 to 1.0 mm2.

The standard is applicable to LSCs intended for either:

  1. the mechanical and electrical connection and disconnection of luminaires suspended by flexible cords up to a maximum supported load of 5 kg; or
  2. the mechanical and electrical connection and disconnection and direct mechanical support of luminaires, i.e. other than by a flexible cord.

The standard is not applicable to LSC plugs and LSC outlets intended to be used on extra low voltage (ELV) supplies.

NOTE 1 LSC outlets complying with this standard may be regarded as lighting outlets in accordance with the provisions of Appendix 4 of the 15th edition of the Regulations for Electrical Installations1).

NOTE 2 The titles of the publications referred to in this standard are listed on the inside back cover.

Committee
PEL/23
DevelopmentNote
Supersedes 86/24101 DC (09/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current

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BS 6141:1981 Specification for insulated cables and flexible cords for use in high temperature zones
BS 7001:1988 Specification for interchangeability and safety of a standardized luminaire supporting coupler
BS 5901:1980 Method of test for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
BS 6004:1984 Specification for PVC-insulated cables (non-armoured) for electric power and lighting
BS 6458-2.1:1984 Fire hazard testing for electrotechnical products. Test methods Glow-wire test
PD 6499:1981 Guide to insulation co-ordination within low-voltage systems including clearances and creepage distances for equipment
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BS 161:1976 Specification for tungsten filament lamps for general service (batch testing)
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