000 00273nam a2200073 4500
080 _a
_b
245 _aIEC: 517 - 1990 (Amendment No.1 - 1994); Gas-insulated metal-enclosed switchgear for rated voltages of 72,5kV and above
700 _aInternational Electrotechnical Commission
260 _aGeneva
_bIEC
_c1994
300 _a7p
999 _c35644
_d35644