| 000 | 00350nam a2200073 4500 | ||
|---|---|---|---|
| 080 |
_a _b |
||
| 245 | _aIS: 3231 (Part 3/Sec. 4) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 3 requirements for particular group of relays Sec.4 directional relays and power relays | ||
| 700 | _aBureau of Indian Standards | ||
| 260 |
_aNew Delhi _bBIS _c1987 |
||
| 300 | _a19p | ||
| 999 |
_c35584 _d35584 |
||