000 00218nam a2200073 4500
080 _a
_b
245 _aIEC: 437-1997; Radio interference test on high-voltage insulators
100 _aINTERNATIONAL ELECTROTECUNICAL COMMISSION
250 _a2
260 _aGENEVA
_bIEC
_c1997
999 _c36161
_d36161