HD 553:1993被替代
Current Transformers
出版：European Committee for Standards - Electrical
專家解讀視頻
Applicable to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz.
SS 427 08 11 Ed. 2 (1993) - Identical
UNE 21088-1:1995 - Identical
BS 7626:1993 - Equivalent
VDE 0414-1:2001 - Identical
IEC 60185 Ed. 2.0 - Identical
CEI 38-1 Ed. 3 (1998) - Identical
