• IEC 61857-1 Ed. 2.0 b:2004

IEC 61857-1 Ed. 2.0 b:2004

Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage

International Electrotechnical Commission , 11/10/2004

Publisher: IEC

File Format: PDF

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Specifies a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS. This basic standard is applicable to existing or proposed EIS used in electrotechnical products with an input voltage of up to 1 000 V where the thermal factor is the dominating ageing factor. This second edition cancels and replaces the first edition published in 1998, and constitutes a technical revision to make this basic standard compatible with parts 21 and 22.

IEC 61857-1 Ed. 2.0 b:2004 History

IEC 61857-1 Ed. 3.0 b:2008
IEC 61857-1 Ed. 2.0 b:2004

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