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sklademVydáno: 2024-04-17
IEC 61643-332:2024
Components for low-voltage surge protection - Part 332: Selection and application principles for metal oxide varistors (MOV)
Composants pour parafoudres basse tension - Partie 332: Choix et principes d'application des varistances à oxyde métallique (MOV)
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| Označení normy: | IEC 61643-332:2024 |
| Vydáno: | 2024-04-17 |
| Jazyk: | Anglicky/Francouzsky |
DESCRIPTION
IEC 61643-332:2024
IEC 61643-332:2024 describes the theory of operation, principles for the selection and application of MOVs to be connected to power lines or telecommunication or signalling circuits, up to 1 000 V AC or 1 500 V DC. These SPCs are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and voltage dependents elements with or without disconnectors. It does not apply to assemblies that include MOVs and their influence on the MOV's characteristics. This standard specifically discusses the zinc-oxide type of MOVs.