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English, French |
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4/26/2021 |
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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) |
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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 |