IEC 60947-9-1:2019
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear - Part 9-1: Active arc-fault mitigation systems - Arc quenching devices
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16-01-2019
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IEC 60947-9-1:2019 covers low-voltage arc quenching devices, hereinafter referred to as AQDs, which are intended to eliminate arc-faults in low-voltage assemblies (typically low-voltage switchgear and controlgear assemblies in accordance with the IEC 61439 series), by creating a lower impedance current path, to cause the arcing current to transfer to the new current path. This new current path is maintained until a short-circuit protection device (SCPD) interrupts the short-circuit current.
AQDs are installed in low-voltage assemblies, connected to the main circuit, preferably as close as possible to all primary power sources.
Their rated voltage does not exceed 1 000 V AC or 1 500 V DC.
| Committee |
TC 121/SC 121A
|
| DocumentType |
Standard
|
| ISBN |
978-2-8322-6404-1
|
| Pages |
37
|
| ProductNote |
This standard is also referce to IEC 60947-9-2,IEC TS 63107
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Standards | Relationship |
| CEI EN IEC 60947-9-1:2019 | Identical |
| VDE 0660-120:2019-11 | Identical |
| BS EN IEC 60947-9-1:2019 | Identical |
| EN IEC 60947-9-1:2019 | Identical |
| DIN EN IEC 60947-9-1 : 2019 | Identical |
| NEN-EN-IEC 60947-9-1:2019 | Identical |
| I.S. EN IEC 60947-9-1:2019 | Identical |
| PN-EN IEC 60947-9-1 : 2019-06 | Identical |
| UNE-EN IEC 60947-9-1:2021 | Identical |
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