000 00352nam a2200073 4500
080 _a
_b
245 _aIS: 3231 (Part 2/Sec. 2) - 1987 (Reaffirmed 1992); Specification for electrical relays for power system protection Part 2 requirements for principal families Section 2 general requirements for measuring relays
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1987
300 _a35p
999 _c35587
_d35587