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Homepage>BS Standards>29 ELECTRICAL ENGINEERING>29.120 Electrical accessories>29.120.50 Fuses and other overcurrent protection devices>BS 5126-2:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for circuit breaker units
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immediate downloadReleased: 1993-12-15
BS 5126-2:1993 Mining type flameproof supply and control units for use on systems up to 1100 V Specification for circuit breaker units

BS 5126-2:1993

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

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Standard number:BS 5126-2:1993
Pages:26
Released:1993-12-15
ISBN:0 580 22422 8
Status:Standard
DESCRIPTION

BS 5126-2:1993


This standard BS 5126-2:1993 Mining type flameproof supply and control units for use on systems up to 1100 V is classified in these ICS categories:
  • 29.120.50 Fuses and other overcurrent protection devices
  • 29.260.20 Electrical apparatus for explosive atmospheres

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.


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