Standards BS - British national standards - Page 7446

Specification for 50 A flameproof restrained and bolted plugs and sockets for voltages not exceeding 650 V, primarily for use in mining.

WITHDRAWN published on 30.1.1981

Specification for 50 A 650 V flameproof, restrained and bolted plugs and sockets for use in coal mines.

WITHDRAWN published on 31.7.1990

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).

WITHDRAWN published on 30.8.1974

Mining type flameproof supply and control units for use on systems up to 1100 V. Specification for direct-on-line motor starters.

WITHDRAWN published on 15.12.1993

Specification for mining type flameproof supply and control units for use on systems up to 1100 V. 300 A circuit breaker units.

WITHDRAWN published on 30.11.1976

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

WITHDRAWN published on 15.12.1993

Mining type flameproof supply and control units for use on systems up to 1100 V. Specification for air-cooled single phase lighting transformer units.

WITHDRAWN published on 31.5.1982

Mining type flameproof supply and control units for use on systems up to 1100 V. Specification for air-cooled lighting transformer units.

WITHDRAWN published on 15.12.1993

Mining type flameproof supply and control units for use on systems up to 1100 V. Specification for units to power drilling machines.

WITHDRAWN published on 30.11.1982

Mining type flameproof supply and control units for use on systems up to 1100 V. Specification for air-cooled transformers to power drilling machines.

WITHDRAWN published on 15.12.1993