Share by email

IEC 60947-9-2

IEC 60947-9-2:2021
Low-voltage switchgear and controlgear - Part 9-2: Active arc-fault mitigation systems - Optical-based internal arc-detection and mitigation devices
IEC 60947-9-2:2021 covers internal arc-fault control devices, hereinafter referred to as IACD, which are intended to:
– detect internal arc-faults in low-voltage switchgear and controlgear assemblies, by processing (at a minimum) the optical effect of an internal arc-fault, and
– operate mitigation device (either external or combined) in order to minimize the effects of the internal arc-fault.
BASE PUBLICATION
English/French
  CHF 365.-

Technical committee

TC 121/SC 121A Low-voltage switchgear and controlgear
Publication typeInternational Standard
Publication date2021-04-26
Edition1.0
ICS

29.120.40

29.130.20

Stability date2026
ISBN number9782832296066
Pages175
File size6.38 MB
EditionDatePublicationEditionStatus
  • Achieve food security and promote sustainable agriculture

  • Achieve food security and promote sustainable agriculture

  • Ensure healthy lives and promote well-being for all

  • Ensure inclusive and equitable quality education

  • Ensure availability and sustainable management of water and sanitation for all

  • Promote inclusive and sustainable economic growth, full and productive employment and decent work for all

  • Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation

  • Make cities and human settlements inclusive, safe, resilient and sustainable

  • Ensure sustainable consumption and production patterns

  • Take urgent action to combat climate change and its impacts

  • Conserve and sustainably use ocean, sea and marine resources

  • Promote sustainable use of terrestrial ecosystems, halt and reverse land degradation and biodiversity loss

  • Strengthen the means of implementation and revitalize the global partnership for sustainable development

See more

Related publications