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

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Hardcopy , PDF

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English

Published date

13-05-2020

Publisher

British Standards Institution

This part of IEC 61643 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.

IEC 61643-331:2020 is available as IEC 61643-331:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

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.

Committee	PEL/37
DocumentType	Standard
ISBN	9780539023893
Pages	48
ProductNote	THIS STANDARD ALOS REFERS TO EN 61643-11:2012/A11:2018
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN IEC 61643-331:2018

Standards	Relationship
IEC 61643-331:2020	Identical
EN IEC 61643-331:2020	Identical

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BS EN IEC 61643-331:2020

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

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