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CEI EN IEC 61439-2

CEI Classification: 121-24

Apparecchiature assiemate di protezione e di manovra per bassa tensione (quadri BT) Parte 2: Quadri di potenza
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Publication Date: 2024-10
ValidFrom: 2022-01
Language: it
Pages: 56
Issue Num.:  20373
Commitee: CEI-CT121
La presente Norma, da leggersi congiuntamente alla Parte 1, contenente le regole generali e a cui si rimanda per le modalità di applicazione, definisce le prescrizioni specifiche delle apparecchiature di protezione e di manovra di potenza (quadri di potenza) la cui tensione nominale non è superiore a 1 000 V in corrente alternata o 1 500 V in corrente continua. Tale Norma non si applica ai tipi di quadri specifici trattati dalle altre parti della serie EN/IEC 61439. Questa edizione include le seguenti modifiche tecniche più significative rispetto alla precedente: a) aggiunti gli allegati DD, EE e FF per i quadri da utilizzare negli impianti fotovoltaici; b) chiarimento e integrazione delle prescrizioni per le forme di separazione interna; c) allineamento con la struttura della CEI EN 61439-1; d) aggiunta della verifica dell'aumento della temperatura per: (i) assiemi con raffreddamento naturale e circuiti nominali superiori a 1 600 A mediante una combinazione di confronto con un progetto di riferimento e il calcolo; (ii) assiemi con raffreddamento forzato e correnti nominali fino a 1 600 A; e) considerazioni sul grado IP con raffreddamento forzato. La presente Norma riporta la traduzione completa della CEI EN IEC 61439-2; la versione inglese è riportata nel fascicolo 18375.

See also

EN IEC 61439-2:2021
IEC 61439-2:2020

International Coding Standard (ICS)

29.130.20
Low voltage switchgear and controlgear
* Including switchgear and controlgear assemblies

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  43    Road Vehicle Engineering

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  43.040    Road vehicle systems

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  43.040.20 Lighting, signaling and warning devices

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