This specification applies to equipment for current-operated earth-fault protection, earth-fault protection, earth-fault lockout protection, earth-continuity protection and earth-fault current limitation for use in coal and shale mines. It is limited to a.c. systems supplying equipment below ground at voltages up to and including 1.1 kV, except earth-fault limitation where equipment for use with voltages up to 11 kV is covered. It includes requirements for elements that detect the faulty condition, apparatus for initiating tripping or locking-out of circuit-breaking devices, and equipment for limitation of earth-fault currents. It does not include requirmeents for the circuit-breaking devices or sensitive earth-fault protection devices of the type used for portable hand-held tools as these requirements are set out in other Australian Standards.
| Edition : | 1st |
| File Size : | 1
file
, 860 KB |
| Note : | This product is unavailable in Russia, Belarus |
| Number of Pages : | 20 |
| Product Code(s) : | 10154080 |
| Published : | 01/01/1977 |
