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BSI
BS 5126-2:1993

BS 5126-2:1993

Current

Current

The latest, up-to-date edition.

Mining type flameproof supply and control units for use on systems up to 1100 V Specification for circuit breaker units

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-12-1993

Publisher

British Standards Institution

Committees responsible
Foreword
Specification
1 Scope
2 References
3 Definitions
4 Information and requirements to be agreed and to be
   documented
5 Service conditions
6 Rated values
7 Design and construction
8 Verification and tests
9 Marking
Tables
1 Circuit breaker performance
2 Creepage distance and clearance
Figures
1 Outline of enclosures showing arrangements for
   earthing terminals and skid couplings
2 Busbar chamber end flange
3 Busbar interconnecting trunk with cover plate
4 650/1100 V busbar interconnecting adaptor trunk
5 650/1100 V skid coupling plate
6 End cover for busbar chamber
7 Example of outgoing cable fittings
8 Envelope dimensions for padlocks
List of references

Specifies service conditions, rated values, design and construction, verification and testing.

This Part of BS 5126 specifies requirements for flameproof supply and control units designed primarily for use in the coal mining industry on 1 100 V three-phase a.c. circuits and dual-voltage 1 100 V/550 V units with circuit breakers for the control and protection of power circuits. Provision is also made for operation on other voltages, where required.

In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

NOTE 1 To facilitate cross-reference and subject location recall between the Parts of this standard, a uniformity of clause arrangements is maintained. At subclause level, because of the different purposes and individual technical features of the four types of control unit, some differences in title and/or subclause arrangements have been unavoidable, but have been made without disturbing the general pattern.

NOTE 2 The figures in this standard show only such features and dimensions essential for function and interchangeability. Dimensions are in millimetres. Untoleranced values less than 100 mm are ± 0.15 mm and those greater than 100 mm are ± 0.25 mm.

Committee
W/-
DevelopmentNote
Supersedes BS 5126-2(1976) & 89/79378 DC. (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

BS 5126-4:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled transformers to power drilling machines
BS 5126-3:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled lighting transformer units

BS 6709:1986 Specification for interconnection of electrical apparatus, constructed to two or more British Standards, for use in mines susceptible to firedamp
BS 3692:1967 Specification for ISO metric precision hexagon bolts, screws and nuts. Metric units
BS 787-1:1969 Specification for mining type flameproof gate-end boxes Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 V)
BS 5901:1980 Method of test for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
BS 5501-7:1977 Electrical apparatus for potentially explosive atmospheres Intrinsic safety \'i\'
BS 2692-1(1986) : 1986 AMD 8047 FUSES FOR VOLTAGES EXCEEDING 1000 V a.c. - SPECIFICATION FOR CURRENT LIMITING FUSES
BS 7202:1989 Specification for non-incendive low voltage control/interlock and low voltage earth fault monitoring circuits for use in mines
BS 5501-5:1977 Electrical apparatus for potentially explosive atmospheres Flameproof enclosure \'d\'
BS EN 60947-2:2017 Low-voltage switchgear and controlgear Circuit-breakers
BS EN 60947-3 : 2009 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS
BS 4683-2:1971 Specification for electrical apparatus for explosive atmospheres The construction and testing of flameproof enclosures of electrical apparatus

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Hardcopy - English
PDF - English
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