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

NEPLATNÁ vydána dne 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).

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 30.11.1976

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

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 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.

NEPLATNÁ vydána dne 15.12.1993

Specification for sizes of film for graphic arts use.

NEPLATNÁ vydána dne 31.10.1974