International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 85

Measuring equipment for electrical and electromagnetic quantities

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 85WG 8Mr Dieter FeulnerPPUB2020-072025

History

Stage
Document
Downloads
Decision Date
Target Date
ACD
85/617/RR PDF file 107 kB
2017-11-28 
CD
85/619/CD
PDF file 378 kB
2017-12-012017-12
PCC
2018-02-232018-02
CDM
85/641/CC PDF file 180 kB
Word file 67 kB
2018-04-202018-05
ACDV
85/641A/CC PDF file 182 kB
Word file 58 kB
2018-08-312018-12
TCDV
2019-03-042019-04
CCDV
85/676/CDV
PDF file 374 kB
PDF file 458 kB
2019-04-262019-04
PRVC
2019-07-192019-07
AFDIS
85/705/RVC PDF file 274 kB
Word file 72 kB
2019-11-012020-06
DECFDIS
2020-02-202020-06
RFDIS
2020-03-162020-03
CFDIS
85/720/FDIS
2020-04-032020-06
CFDIS
85/720(F)/FDIS
2020-04-032020-06
PRVD
2020-05-152020-05
APUB
85/722/RVD PDF file 128 kB
2020-05-222020-05
BPUB
2020-05-222020-05
PPUB
2020-06-232020-07
  

Abstract

IEC 61557-11:2020 is available as IEC 61557-11:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61557-11:2020 specifies the requirements for test equipment applied to the testing of the effectiveness of residual current monitors (RCM) that are already installed in distribution systems. This test equipment can be used in any kind of network, such as a TN, TT or IT system. The test equipment can also be used for testing directionally discriminating residual current monitors (RCM) in IT systems. It is not the purpose of this document to verify the residual current monitors (RCM) according to their product standards. IEC 61557-11:2020 cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) document title modified to include all types of RCM;
b) terms aligned with IEC 60050;
c) addition of requirements for testing new types of RCM;
d) moving of requirements for RCM Type B from former Annex A to main body text;
e) alignment of the structure with that of the whole IEC 61557 series.

Project

IEC 61557-11:2020 ED2

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors (RCM) in TT, TN and IT systems