Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Definitions, information and general principles
Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Definitions, information and general principles
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1 Scope and object IEC/TS 60815‑1, which is a technical specification, is applicable 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. systems 1 ;
— IEC/TS 60815‑5 – equivalent to 60815-3 for d.c. systems 1 .
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 term “insulator” is used hereafter to refer to any type of insulator. CIGRE C4 documents [1], [2], [3] 2 , form a useful complement to this technical specification for those wishing to ...
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