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IEC 60947-9-2:2021 ED1

Low-voltage switchgear and controlgear - Part 9-2: Active arc-fault mitigation systems - Optical-based internal arc-detection and mitigation devices

Apr 26, 2021

General information

60.60     Apr 26, 2021

IEC

TC 121/SC 121A

International Standard

29.120.40     29.130.20  

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Scope

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.

Life cycle

NOW

PUBLISHED
IEC 60947-9-2:2021 ED1
60.60 Standard published
Apr 26, 2021