AS 2989-1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Electrical equipment for coal mines- High voltage circuit breaking and isolating devices for voltages up to 11 000 V a.c.
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
30-05-2024
English
01-09-1987
Specifies requirements for an assembly which incorporates a high voltage circuit breaker and an isolating device. It is limited to systems below ground at voltages up to and including 11 000 V a.c. The necessary provisions for isolation, safety earthing and regulatory inspection and testing procedures are also included.
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