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