000 00244nam a2200073 4500
080 _a
_b
245 _aIEC: 56 - 1987 (Amendment No.3 - 1996); High-Voltage alternating-current circuit-breakers
700 _aInternational Electrotechnical Commission
260 _aGeneva
_bIEC
_c1987
300 _a37p
999 _c35645
_d35645