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IEC 60077-5-ed.2.0
Railway applications - Electric equipment for rolling stock - Part 5: Electrotechnical components - Rules for HV fuses
Translate name
STANDARD published on 30.10.2019
The information about the standard:
Designation standards: IEC 60077-5-ed.2.0
Publication date standards: 30.10.2019
SKU: NS-974447
The number of pages: 58
Approximate weight : 174 g (0.38 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60077-5-ed.2.0 :
IEC 60077-5:2019 give additional or amended rules for high voltage (HV) fuses as a supplement to those given by IEC 60077-2. The high voltage fuses concerned are those connected into power and/or auxiliary circuits. The nominal voltage of these circuits lies between 600 V DC and 3 000 V DC, according to IEC 60850. These fuses can also be used in auxiliary AC circuits up to a nominal voltage of 1 500 V. This document together with IEC 60077-2 states specifically: a) the characteristics of the fuses; b) the service conditions with which the fuses comply with reference to: - operation and behaviour in normal service; - operation and behaviour in case of short circuit; - dielectric properties. c) the tests intended for confirming the compliance of the fuse with the characteristics under the service conditions and the methods adopted for these tests; d) the information marked on, or given with, the fuse. This second edition cancels and replaces the first edition, issued in 2003. This edition includes the following main technical changes with regard to the previous edition: a) test method of test duty III for verification of breaking capacity is reviewed. LIEC 60077-5:2019 fournir des regles complementaires ou amendees pour les fusibles a haute tension, en plus de celles donnees dans lIEC 60077-2. Les fusibles a haute tension concernes sont connectes dans les circuits de puissance et/ou auxiliaires. La tension nominale de ces circuits est situee entre 600 V CC et 3 000 V CC, conformement a lIEC 60850. Ces fusibles peuvent egalement etre utilises dans des circuits auxiliaires a courant alternatif jusqua une tension nominale de 1 500 V. En complement de lIEC 60077-2, le present document precise particulierement: a) les caracteristiques des fusibles; b) les conditions de service que les fusibles supportent du point de vue: - du fonctionnement et du comportement en service normal; - du fonctionnement et du comportement en cas de court-circuit; - des proprietes dielectriques. c) les essais destines a verifier la conformite du fusible avec les caracteristiques dans les conditions de service ainsi que les methodes a adopter pour ces essais; d) les informations donnees avec ou marquees sur le fusible. Cette deuxieme edition annule et remplace la premiere edition, parue en 2003. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) revision de la methode dessai des conditions dessai III pour la verification du pouvoir de coupure.
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