IEC 61857-1:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-31-2021
English - French, Spanish, Castilian
11-10-2004
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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