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CEI EN 60947-5-8

CEI Classification: 17-101

Apparecchiature a bassa tensione
Parte 5-8: Dispositivi per circuiti di comando ed elementi di manovra - Interruttori ausiliari a tre posizioni
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Publication Date: 2007-04
Date Of Withdrawal (DOW): 2022-01
ValidFrom: 2007-06
ValidTo: 2024-04
Language: EN
Pages: 28
Issue Num.:  8768 E
Commitee: CEI-SC121A, CEI-CT121
EU Directives Low voltage (LVD)
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La presente Norma specifica i requisiti per gli interruttori ausiliari a tre posizioni. Questi interruttori ausiliari sono utilizzati come componenti dei dispositivi per il comando di abilitazione descritti al paragrafo 10.9 della Norma CEI EN 60204-1 per fornire segnali che, quando sono attivati, forniscono il consenso all’operazione della macchina da parte di un comando di avviamento separato e, quando sono disattivati, iniziano una funzione di arresto e impediscono l’inizio del movimento della macchina.
La presente Norma non si applica agli interruttori ausiliari a tre posizioni per i circuiti di comando non elettrici, ad es. idraulici e pneumatici, agli interruttori ausiliari senza meccanismo a tre posizioni, ai dispositivi di arresto di emergenza.
Questa Norma viene pubblicata dal CEI nella sola lingua inglese in quanto particolarmente mirata a settori specialistici.
La presente Norma recepisce il testo originale inglese della Pubblicazione IEC e pertanto consta delle sole pagine dispari.
La presente Norma é annullata e sostituita dalla Nuova edizione, CEI EN IEC 60947-5-8:2021-12 (CEI 121-23), tuttavia rimane applicabile fino al 02-04-2024.

See also

EN 60947-5-8:2006
IEC 60947-5-8:2006

International Coding Standard (ICS)

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

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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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