000 00354nam a2200109Ia 4500
008 230907s9999||||xx |||||||||||||| ||und||
082 _a621.3
_bIEC
100 _aIEC Standards
_9117978
245 0 _aIEC 60507 ED. 2.0 B:1991, ARTIFICIAL POLLUTION TESTS ON HIGH-VOLTAGE INSULATORS TO BE USED ON A.C. SYSTEMS
260 _bIEC
_c2019-09-13
942 _2ddc
_cEB
999 _c599836
_d599836