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Publication details

Publication CODE Title
IEC 60947-9-2:2021 (2021-04) LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 9-2: ACTIVE ARC-FAULT MITIGATION SYSTEMS - OPTICAL-BASED INTERNAL ARC-DETECTION AND MITIGATION DEVICES
 
Price Excl. VAT Total number of pages, tables and drawings
366.00 € 175.
Description
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.
Class  C990  (IEC PUBLICATIONS IEC PUBLICATIONS)
Available files
EN/FR version

Status
Status IEC PUBLICATION
Situation Currently active
Origin
Committee TC 121/SC 121A
Low-voltage switchgear and controlgear
Responsible Ir DELENS Marc
Approval
BEC Approval 2021-04-26
ICS-Code (International Standards Classification) 29.120.40 , 29.130.20
NBN Status New
IEC publication date 2021-04-26
IEC stability date 2023-12-31
IEC file modification date 2021-04-26
IEC last modification date 2021-04-26