| 000 | 00322nam a2200073 4500 | ||
|---|---|---|---|
| 080 |
_a _b |
||
| 245 | _aIS: 3231 - Part 3 - Section - 4 - 1987; Specification forElectrical Relays for Power systems protection Part 3; Requirements for Particular Group of Relays Section 4; Directional Relays and power relays | ||
| 100 | _aBIS | ||
| 260 |
_aNew Delhi _bBIS _c1987 |
||
| 300 | _a19p | ||
| 999 |
_c36178 _d36178 |
||