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CEI 57-6

CEI Classification: 57-6

Prestazioni e prove degli apparati di teleprotezione per sistemi elettrici
Parte 1: Sistemi di comando a banda stretta
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CEI
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Publication Date: 1997-05
Date Of Withdrawal (DOW): 2001-07
ValidFrom: 1990-12
Language: IT
Pages: 42
Issue Num.:  3050 R
Commitee: CEI-CT310
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La presente Norma si applica agli apparati di teleprotezione a banda stretta a segnale singolo o a segnale singolo multiplo; si applica inoltre agli apparati a frequenza fonica usati insieme a vari sistemi di telecomunicazione quali onde convogliate, ponti radio, circuiti affittati, cavi privati o affittati. Scopo della Norma è quello di stabilire prescrizioni di funzionamento e metodi raccomandati di prova dei canali usati per la trasmissione dei segnali relativi all'informazione di comando richiesta dai dispositivi di protezione nei sistemi elettrici, e di fornire la terminologia relativa.
La presente Norma costituisce la ristampa senza modifiche, secondo il nuovo progetto di veste editoriale, della Norma pari numero ed edizione (Fascicolo 1401).

Relations

Replaces: CEI 57-6

See also

HD 543.1 S1:1991
IEC 834-1:1988

Annotation

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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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