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download between 0-24 hoursReleased: 2021-04-26
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
Appareillage à basse tension - Partie 9-2: Systèmes actifs de limitation des défauts d'arc - Dispositifs optiques de détection et de limitation d'arcs internes
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English/French - Bilingual PDF
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| Standard number: | IEC 60947-9-2:2021 |
| Released: | 2021-04-26 |
| Edition: | 1 |
| ICS: | 29.120.40 |
| Pages (English/French - Bilingual): | 175 |
| ISBN (English/French - Bilingual): | 9782832296066 |
DESCRIPTION
IEC 60947-9-2:2021
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.