IEC 60947-9-2:2021

IEC 60947-9-2:2021

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

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Details

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.

Additional Info

Author International Electrotechnical Commission (IEC)
Committee TC 121/SC 121A
Published by IEC
Document type Standard
Edition 1.0
ICS 29.120.40 : Switches
29.130.20 : Low voltage switchgear and controlgear
Number of pages 175
Keyword IEC60947-9-2,IEC 60947-9-2:2021,IEC 60947-9-2,TC 121/SC 121A