| Publication CODE |
Title |
| IEC 60947-9-1:2019 (2019-01) |
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 9-1: ACTIVE ARC-FAULT MITIGATION SYSTEMS - ARC QUENCHING DEVICES |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
122.00 €
|
37. |
Description
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.
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| Status |
IEC PUBLICATION |
| Situation |
Currently active
|
|
| Committee |
TC 121/SC 121A
Low-voltage switchgear and controlgear
|
| Responsible |
Ir DELENS Marc
|
| BEC Approval |
2019-01-16 |
| ICS-Code (International Standards Classification) |
29.120.40
, 29.130.20
|
| NBN Status |
New |
|
| IEC publication date |
2019-01-16 |
| IEC stability date |
2022-12-31 |
| IEC file modification date |
2019-01-16 |
| IEC last modification date |
2019-01-17 |
|
