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DM-300 • DM-310 • DM-330 • DM-350
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Categorie di misura
Queste definizioni sono derivate dallo standard internazionale sulla
sicurezza per la coordinazione dell’isolamento per le apparecchiature
di misura, controllo e laboratorio. Queste categorie di misura vengono
spiegate nei dettagli dall’International Electrotechnical Commission;
consultare la documentazione: IEC 61010-1 o IEC 60664.
Categoria di misura I
Livello segnale. Apparecchiature elettroniche o di telecomunicazioni,
o parte delle stesse. Tra gli esempi compaiono circuiti elettronici di
protezione da transienti all’interno di fotocopiatrici e modem.
Categoria di misura II
Livello locale. Elettrodomestici, apparecchiature portatili e circuiti con cavo
di alimentazione. Tra gli esempi compaiono lampade, televisori e circuiti a
lunga diramazione.
Categoria di misura III
Livello distribuzione. Macchine ad installazione permanente e circuiti ad
esse collegati. Tra gli esempi compaiono sistemi convogliatori e pannelli
di interruttori automatici principali dell’impianto elettrico di un edificio.
Categoria di misura IV
Livello forniture primarie. Linee sospese ed altri sistemi di cablaggio.
Tra gli esempi compaiono cavi, multimetri, trasformatori ed altre
apparecchiature esterne collegate all’utility di alimentazione.
Dichiarazione di conformità
Greenlee Textron Inc. è una società certificata ISO 9000 (2000) per i nostri
sistemi di gestione della qualità.
Lo strumento contenuto è stato controllato e/o calibrato usando
apparecchiatura registrata presso il National Institute for Standards and
Technology (NIST).
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