000 00360nam a2200073 4500
080 _a
_b
245 _aIS: 3231 (Part 3/Sec. 2) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 3 requirements for particular group of relays Section 2 dependent specified time measuring relays
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1987
300 _a11p
999 _c35585
_d35585