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Pre-standard

DIN IEC/TS 60815-1:2016-08

VDE V 0674-256-1:2016-08

Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles (IEC/TS 60815-1:2008)

German title
Auswahl und Bemessung von Hochspannungsisolatoren für die Anwendung unter Verschmutzungsbedingungen - Teil 1: Begriffe, Informationen und allgemeine Grundlagen (IEC/TS 60815-1:2008)
Publication date
2016-08
Original language
German
Pages
57
Procedure
Pre-Standard

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Publication date
2016-08
Original language
German
Pages
57
Procedure
Pre-Standard

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Overview

This Technical Specification applies to the selection of insulators, and the determination of their relevant dimensions, to be used in high-voltage systems with respect to pollution. For the purposes of this Technical Specification, the insulators are divided into the following broad categories, each dealt with in a specific part as follows: - IEC/TS 60815-2 - Ceramic and glass insulators for a.c. systems; - IEC/TS 60815-3 - Polymeric insulators for a.c. systems; - IEC/TS 60815-4 - equivalent to 60815-2 for d.c. systems1; - IEC/TS 60815-5 - equivalent to 60815-3 for d.c. systems. This part of IEC 60815 gives general definitions, methods for the evaluation of pollution site severity (SPS) and outlines the principles to arrive at an informed judgement on the probable behaviour of a given insulator in certain pollution environments. This Technical Specification is generally applicable to all types of external insulation, including insulation forming part of other apparatus. The object of this technical specification is to - understand and identify parameters of the system, application, equipment and site influencing the pollution behaviour of insulators, - understand and choose the appropriate approach to the design and selection of the insulator solution, based on available data, time and resources, - characterize the type of pollution at a site and determine the site pollution severity (SPS), - determine the reference unified specific creepage distance (USCD) from the SPS, - determine the corrections to the "reference" USCD to take into account the specific properties (notably insulator profile) of the "candidate" insulators for the site, application and system type, - determine the relative advantages and disadvantages of the possible solutions, - assess the need and merits of "hybrid" solutions or palliative measures, - if required, determine the appropriate test methods and parameters to verify the performance of the selected insulators. The responsible committee is DKE/K 451 "Isolatoren" ("Insulators") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.

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