Low-voltage switchgear and controlgear - Active arc-fault mitigation systems - Part 9-2: Optical-based internal arc-detection and mitigation devices (IEC 121A/338/CDV:2020); German and English version prEN IEC 60947-9-2:2020
German title
Niederspannungsschaltgeräte - Aktive Systeme zur Abschwächung von Störlichtbögen - Teil 9-2: Optische Geräte zur Erfassung und Abschwächung innerer Lichtbögen (IEC 121A/338/CDV:2020); Deutsche und Englische Fassung prEN IEC 60947-9-2:2020
Date of issue
2021-02-05
Publication date
2021-03
Original language
German,
English
Pages
164
Date of issue
2021-02-05
Publication date
2021-03
Original language
German,
English
Pages
164
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