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CEI EN 50470-3

CEI Classification: 13-54

Apparati per la misura dell'energia elettrica
Parte 3: Prescrizioni particolari - Contatori statici per energia attiva (c.a.) (indici di classe A, B e C)
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Publication Date: 2023-01
ValidFrom: 2023-02
Language: EN
Pages: 32
Issue Num.:  19124 E
Commitee: CEI-CT13
Questa Norma si applica ai contatori statici di energia attiva di classe A, B e C per la misura dell’energia elettrica attiva in c.a., nelle reti a 50 Hz o 60 Hz e si applica alle loro prove di tipo.
Questo documento si applica agli apparati di misura dell’energia elettrica previsti per:
- misurare l’energia elettrica su reti elettriche con tensioni fino a 1 000 V in c.a;
- avere tutti gli elementi funzionali, inclusi i moduli aggiuntivi, racchiusi o costituenti parte di un’unica custodia del contatore, ad eccezione dei visualizzatori indicatori;
- funzionare con visualizzatori indicatori integrati o separati;
- essere installati in una base a innesto o in un telaio di adattamento specificati;
- fornire facoltativamente funzioni supplementari diverse da quelle di misura dell’energia elettrica.
La Norma in oggetto sostituisce completamente la Norma CEI EN 50470-3:2007-12, che rimane applicabile fino all'11-04-2025.
Questa Norma viene pubblicata dal CEI in una prima fase nella sola lingua inglese, per consentirne l'immediato utilizzo da parte degli utenti interessati, nel rispetto della data di pubblicazione fissata dagli Enti Normatori Internazionali.
Successivamente il CEI pubblicherà, in un nuovo fascicolo, la versione solo italiana; tale versione avrà la stessa validità della presente.

Relations

Replaces: CEI EN 50470-3/A1
Replaces: CEI EN 50470-3
Replaces: CEI EN 50470-3/A1

See also

EN 50470-3:2022

International Coding Standard (ICS)

91.140.50
Electricity supply systems
* Including electric energy meters in buildings, emergency electrical supplies, etc.

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ICS

International Classification for Standards (ICS) is an international classification system for technical standards.

The ICS is a hierarchical classification organized on three levels.

Level 1 covers the main fields of activity in standardization, e.g. road vehicle engineering, agriculture, metallurgy.

Each field has a two-digit notation, e.g.

  43    Road Vehicle Engineering

The main fields are subdivided into groups (level 2). The notation of a group consists of the field notation and a three-digit group number, separated by a point, e.g.

  43.040    Road vehicle systems

Some groups are further divided into sub-groups (level 3). The notation of a sub-group consists of the group notation and a two-digit number, separated by a point, e.g.

  43.040.20 Lighting, signaling and warning devices

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You should use this option when you can not find the desired result with the standard approach and it is necessary to extend the scope of the search: by increasing the number of results, you will increase the number of non-relevant elements, as well.