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IEC 60947-3-ed.4.1+Amd.1-CSV
Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
NORMA vydaná dňa 25.4.2025
Informácie o norme:
Označenie normy: IEC 60947-3-ed.4.1+Amd.1-CSV
Dátum vydania normy: 25.4.2025
Kód tovaru: NS-1219860
Počet strán: 217
Približná hmotnosť: 682 g (1.50 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy IEC
Kategórie - podobné normy:
Anotácia textu normy IEC 60947-3-ed.4.1+Amd.1-CSV :
IEC 60947-3:2020+AMD1:2025 CSV applies to switches, disconnectors, switch-disconnectors and fuse-combination units and their dedicated accessories to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1 000 V AC or 1 500 V DC. This fourth edition cancels and replaces the third edition published in 2008, Amendment 1:2012 and Amendment 2:2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of critical load current tests for DC switches (see 9.3.9); - addition of requirements for a conditional short-circuit rating for disconnectors, switches, and switch-disconnectors protected by circuit-breakers (see 9.3.7.2); - addition of new categories for high-efficiency motors switching (see Annex A); - addition of new Annex E for connection to aluminium conductors; - addition of new Annex F for power losses measurement. The contents of the corrigendum of October 2021 have been included in this copy.
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