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EVS-EN IEC 61643-331:2020

Components for low-voltage surge protection - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

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Kehtiv alates 15.05.2020
Alusdokumendid
IEC 61643-331:2020; EN IEC 61643-331:2020
Tegevusala (ICS grupid)
31.040 Takistid
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
15.05.2020
Põhitekst
02.04.2018
Põhitekst
IEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and hybrid surge protection components. This document also does not apply to mountings and their effect on the MOV’s characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - a Varistor MCOV rating assurance test; - an energy rating test (2ms); - revised Dielectric strength and insulation resistance tests.
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CLC/TS 61643-12:2009

Low-voltage surge protective devices -- Part 12: Surge protective devices connected to low-voltage power systems - Selection and application principles
Uusim versioon Kehtiv alates 03.02.2010