SC 77A

EMC - Low frequency phenomena

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

SC 77AWG 1 J. SchöneckDELPUB2004-12 

History

Stage
Document
Downloads
Decision Date
Target Date
PNW
77A/225/NP PDF file 15 kB
1997-11-28 
ANW
77A/251/RVN Word file 125 kB
1998-04-151998-04
1CD
77A/325/CD PDF file 98 kB
2000-09-291999-12
A2CD
77A/358/CC PDF file 201 kB
2001-08-242001-04
2CD
77A/363/CD PDF file 116 kB
2001-11-302001-12
ACDV
77A/390/CC PDF file 341 kB
2002-09-202002-05
CCDV
77A/426/CDV PDF file 636 kB
2003-08-152002-12
AFDIS
77A/457/RVC Word file 313 kB
PDF file 249 kB
2004-04-302004-04
AFDIS
77A/457A/RVC PDF file 641 kB
2004-07-022004-05
DECFDIS
2004-07-062004-07
RFDIS
2004-07-072004-07
DECFDIS
2004-07-08 
RFDIS
2004-08-24 
CFDIS
77A/470/FDIS

2004-08-272004-09
APUB
77A/478/RVD PDF file 181 kB
2004-11-012004-12
BPUB
2004-11-022005-01
PPUB
2004-11-292005-02
DELPUB
2011-05-12 
  

Abstract

Deals with the limitation of harmonic currents injected into the public supply system. The limits given in this International Standard are applicable to electrical and electronic equipment with a rated input current exceeding 16 A and up to and including 75 A per phase, intended to be connected to public low-voltage a.c. distribution systems of the following types: - nominal voltage up to 240 V, single-phase, two or three wires; - nominal voltage up to 690 V, three-phase, three or four wires; - nominal frequency 50 Hz or 60 Hz. Other distribution systems are excluded. The limits given in this edition apply to equipment when connected to 230/400 V, 50 Hz systems. This standard applies to equipment intended to be connected to low-voltage systems interfacing with the public supply at the low-voltage level. It does not apply to equipment intended to be connected only to private low-voltage systems interfacing with the public supply only at the medium- or high-voltage level. This standard defines: a) requirements and emission limits for equipment; b) methods for type tests and simulations. Tests according to this International Standard are type tests of complete pieces of equipment. Conformity with this standard can also be determined by validated simulations.

Project

IEC 61000-3-12:2004 ED1

Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and ≤ 75 A per phase

 

 

Associated Documents:

CA/1869/MTG

PDF file 127 kB