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 (3)

Project

Reference

Document

Reference

Init.

Date

Current

Stage

Next

Stage

Working

Group

Project

Leader

Fcst. Publ.

Date

IEC TR 60890 ED3

A method of temperature-rise verification of low-voltages switchgear and controlgear assemblies by calculation

121B/113/CD 2019-11 CD
  • CD
  • Committee Draft

2020-08

PCC
  • PCC
  • Preparation of CC document

2020-11

2021-06
IEC TR 61439-0 ED3

Low-voltage switchgear and controlgear assemblies- Part 0: Guidance to specifying assemblies

121B/94A/CD 2019-11 TDTR
  • TDTR
  • Translation of DTR

2020-10

CDTR
  • CDTR
  • Circulation of DTR

2020-12

2021-08
IEC TS 63290 ED1

General technical requirements for intelligent assemblies

121B/93A/NP 2020-01 ACD
  • ACD
  • Approved for CD

2020-01

CD
  • CD
  • Draft circulated as CD

2020-10

PT 63290 Weihong Song 2022-12