BS 5620:1995 Specification for 200 A 1100 V flameproof restrained and bolted plugs and sockets for use in coal mines
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This British Standard specifies the constructional
and test requirements for 200 A flameproof
restrained and bolted plugs, sockets and plug
coupling units suitable for single voltages of 650 V
and 1 100 V and dual voltage of 650/1 100 V. They
are primarily intended for use with mining
apparatus which is connected to its power supply by
means of a flexible cable.
Three types are covered and designated as:
— type 1S: 200 A, 650 V single voltage, restrained
and bolted;
— type 1D: 200 A, 650/1 100 V dual voltage,
restrained and bolted;
— type 2: 200 A, 1 100 V single voltage,
restrained only.
Type 1 and 2 configurations are not
interchangeable.
The plugs, sockets and plug coupling units
incorporate three power contacts, a pilot contact for
electrical interlocking and a scraping earth contact.
The dual voltage plugs and sockets are intended for
use either on a 650 V or 1 100 V supply, the
appropriate arrangements including selection of
voltage by orientation of insulator and pins to
ensure non-interchangeability for other than the
appropriate voltage.
In addition to the definitive requirements, this
standard also requires the items detailed in clause 3
to be documented. For compliance with this
standard, both the definitive requirements and the
documented items have to be satisfied.
Primary Item Type:
British Standard
Identifiers:
ICS 29.260.20 Electrical apparatus for explosive atmospheres
ISBN 0580231917
Subject Keywords:
Interchangeability; Performance; Electric terminals; Type d protected electrical equipment; Sampling methods; Electrical testing; Marking; Rated voltage; Endurance testing; Electric connectors; Coal mining; Dielectric-strength tests; Protected electrical equipment; Temperature rise; Electric sockets; High-voltage tests; Electric plugs; Mining equipment; Electrical insulating materials; Heating tests; Mechanical testing; Type testing; Leakage paths; Dimensions; Tensile strength; Rated current; Testing conditions
