000 00295nam a2200109Ia 4500
008 230907s9999||||xx |||||||||||||| ||und||
082 _a621.3
_bIEC
100 _aIEC Standards
_9117978
245 0 _aIEC-61857-22--- ELECTRICAL INSULATION SYSTEMS--
260 _bIEC
_c2019-08-01
942 _2ddc
_cEB
999 _c598747
_d598747