| 000 | 00311nam a2200073 4500 | ||
|---|---|---|---|
| 080 |
_a _b |
||
| 245 | _aIS: 3231 (Part 2/Sec. 1) - 1987; Specification for electrical relays for power system protection Part 2 requirements for principal families Sec. 1 all-or-nothing relays | ||
| 700 | _aBureau of Indian Standards | ||
| 260 |
_aNew Delhi _bBIS _c1988 |
||
| 300 | _a25p | ||
| 999 |
_c34458 _d34458 |
||