IEC 61857-1 Ed. 2.0 b:2004
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Electrical insulation systems – Procedures for thermal evaluation – Part 1: General requirements – Low-voltage
International Electrotechnical Commission , 11/10/2004
Pages: 33
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.
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