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IEC 60885-3-ed.2.0
Electrical test methods for electric cables - Part 3: Test methods for partial discharge measurements on lengths of extruded power cables
STANDARD published on 9.4.2015
The information about the standard:
Designation standards: IEC 60885-3-ed.2.0
Publication date standards: 9.4.2015
SKU: NS-585851
The number of pages: 42
Approximate weight : 126 g (0.28 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60885-3-ed.2.0 :
IEC 60885-3:2015 specifies the test methods for partial discharge (PD) measurements on lengths of extruded power cable, but does not include measurements made on installed cable systems. Reference is made to IEC 60270 which gives the techniques and considerations applicable to partial discharge measurements in general. This second edition of IEC 60885-3 cancels and replaces the first edition, published in 1988 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - The definition of sensitivity as twice the background noise level has been removed and replaced by a practical assessment of sensitivity based on the minimum level of detectable discharge. - References to measurements of pulse heights in mm on an oscilloscope have been replaced by measurements of partial discharge magnitude in pC. - The order of the clauses has been revised in line with the general numbering scheme of IEC standards and to provide clarity in order to facilitate its practical use. Section 3 of the first edition (Application guide) has been removed as it is considered that background information is better obtained from the original references as listed in the bibliography. IEC 60885-3:2015 specifie les methodes dessai pour les mesures des decharges partielles sur des longueurs de cables de puissance extrudes, mais ne traite pas des mesures effectuees sur des systemes de cables installes. Il est fait reference a lIEC 60270 qui donne les techniques et considerations generales applicables aux mesures des decharges partielles. Cette deuxieme edition de lIEC 60885-3 annule et remplace la premiere edition parue en 1988. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - La definition de la sensibilite consideree comme le double du niveau de bruit de fond a ete supprimee et remplacee par une evaluation pratique de la sensibilite en fonction du niveau minimum de decharge detectable. - Les references aux mesures des hauteurs dimpulsions en mm sur un oscilloscope ont ete remplacees par des mesures de la grandeur de la decharge partielle en pC. - Lordre des articles a ete revise pour reprendre le schema de numerotation general des normes de lIEC et pour clarifier le texte pour en faciliter lutilisation pratique. La Section 3 de la premiere edition (Guide dapplication) a ete supprimee car il est considere que les references originales telles quenumerees dans la bibliographie fournissent des informations de meilleure qualite sur lenvironnement technique.
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