000 00278nam a2200073 4500
080 _a
_b
245 _aIEC: 56 - 1 - 1971 (Amendment No.2 - 1981); High-voltage alternating current circuit-breakers Part 1 General and definitions
700 _aInternational Electrotechnical Commission
260 _aGeneva
_bIEC
_c1981
300 _a2p
999 _c30025
_d30025