Standard

IEC 60947-9-2:2021 ED1

Current

Existing or new amendments and versions must be purchased separately.

Language
Services

Abstract

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.

Products specifications

  • Standard from IEC
  • Published:
  • Edition: 1
  • Document type: IS
  • Pages
  • Publisher: IEC
  • Distributor: IEC
  • ICS: 29.120.40
  • ICS: 29.130.20
  • International TC: TC 121/SC 121A