BS EN IEC 60947-9-1:2019
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear Active arc-fault mitigation systems. Arc quenching devices
Hardcopy , PDF
English
14-06-2019
Important note : Users cannot be edited or removed once added to your Multi user PDF.This part of IEC 60947 covers low-voltage arc quenching devices, hereinafter referred to as AQDs, which are intended to eliminate arc-faults in low-voltage assemblies (typically lowvoltage 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.
| Committee |
PEL/121/1
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| DocumentType |
Standard
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| ISBN |
9780580966231
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| Pages |
26
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| ProductNote |
THIS STANDARD ALSO REFERS TO IEC TS 63107, IEC 60947-9-2, EN 61439, EN 55011:2016, EN 60947-1:2007,
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This part of IEC 60947 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. This document does not cover:
sensors intended to detect arc-faults;
devices intended to trigger the functioning of the arc quenching device;
devices intended to interrupt arc-fault current;
special requirements for AQDs for use in explosive atmospheres (e.g. ATEX).
| Standards | Relationship |
| EN IEC 60947-9-1:2019 | Identical |
| IEC 60947-9-1:2019 | Identical |
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