BS 7202:1989

Current

Current The latest, up-to-date edition.

Specification for non-incendive low voltage control/interlock and low voltage earth fault monitoring circuits for use in mines

Available format(s): Hardcopy, PDF

Language(s): English

Published date: 28-02-1990

Publisher: British Standards Institution

Table of Contents - (Show below) - (Hide below)

Committees responsible
Foreword
Specification
1 Scope
2 Definitions
3 General
4 Non-incendive sparking
5 Enclosure protection
6 Segregation of low voltage control/interlock circuits
and low voltage earth fault monitoring circuits from
intrinsically safe circuits
7 Marking

Abstract - (Show below) - (Hide below)

Requirements to prevent incendive sparking in low voltage circuits used typically in motor starter units such as those complying with BS 5126.

Scope - (Show below) - (Hide below)

This British Standard specifies requirements to prevent incendive sparking in low voltage circuits used typically in motor starter units in mines, such as those complying with BS 5126, for the following:

control and interlocking purposes in association with a flexible cable fitted with restrained type plugs;
detecting earth faults in the outgoing cable and connected load when the outgoing power circuits are de-energized.

NOTE 1. Operational aspects of control circuits are specified in BS 3101 and earth fault monitoring circuits in BS 5126.

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

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Committee	W/-
Development Note	Supersedes 87/73479 DC (09/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
Document Type	Standard
ISBN
Pages
Published
Publisher	British Standards Institution
Status	Current

Standards Referenced By This Book - (Show below) - (Hide below)

BS 5126-1:1993	Mining type flameproof supply and control units for use on systems up to 1100 V Specification for direct-on-line motor starters
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 5126-4:1993	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 6704:1996	Code of practice for selection, installation and maintenance of intrinsically safe electrical equipment in coal mines
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

Standards Referencing This Book - (Show below) - (Hide below)

BS 5620:1979	Specification for 200 A flameproof restrained and bolted plugs and sockets for voltages not exceeding 1100 V, primarily for use in mining
BS 5126-3:1982	Mining type flameproof supply and control units for use on systems up to 1100 V Specification for air-cooled single phase lighting transformer units
BS 5501-7:1977	Electrical apparatus for potentially explosive atmospheres Intrinsic safety \'i\'
BS 5126-4:1982	Mining type flameproof supply and control units for use on systems up to 1100 V Specification for units to power drilling machines
BS 5501-1:1977	Electrical apparatus for potentially explosive atmospheres General requirements
BS 5126-1:1974	Specification for mining type flameproof supply and control units for use on systems up to 1100 V 160/250 A direct-on-line motor starters (for use on three-phase a.c. circuits)
BS 5126-2:1976	Specification for mining type flameproof supply and control units for use on systems up to 1100 V 300 A circuit breaker units
BS 5125:1990	Specification for 50 A 650 V flameproof, restrained and bolted plugs and sockets for use in coal mines

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