IEC 61557-11:2009 EN-FR 79d64570
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT systems
REVISED
发布日期 :
2009-01-12
实施日期 :