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

SC 121B

Low-voltage switchgear and controlgear assemblies

 
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SC 121B Work programme (5)

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IEC 61439-1 Ed. 3.0  

Low-voltage switchgear and controlgear assemblies - Part 1: General rules
121B/9/CD2014-041CD
  • 1CD
  • 1st Committee Draft

2014-04

A2CD
  • A2CD
  • Approved for 2nd Committee Draft

2014-08

MT 2T.W.Mennell2017-03
IEC 61439-2 Ed. 3.0  

Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies
121B/12/CD2014-041CD
  • 1CD
  • 1st Committee Draft

2014-04

A2CD
  • A2CD
  • Approved for 2nd Committee Draft

2014-08

MT 2T.W.Mennell2017-03
IEC 61439-5 Ed. 2.0  

Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
17D/492/CDV2012-10CCDV
  • CCDV
  • Draft circulated as Committee Draft with Vote

2013-11

ADIS
  • ADIS
  • Approved for FDIS circulation

2014-05

MT 7Th. W. Mennell2014-12
IEC/TR 61641 Ed. 3.0  

Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal fault
121B/4/DTR2013-01CDTR
  • CDTR
  • Circulated Draft Technical Report

2014-02

APUB
  • APUB
  • Draft approved for publication

2014-07

MT 2T. W. Mennell2014-12
PNW 121B-5 Ed. 1.0  

Low-voltage switchgear and controlgear assemblies - Part 8: Assemblies for machinery (cabinets, boards or panels)
121B/5A/NP PNW
  • PNW
  • Proposed New Work

2014-03

ANW
  • ANW
  • Approved New Work

2014-07

F. Dosio