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IEC 61858:1999 ED1

Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS

Sep 30, 1999

General information

99.60     Nov 10, 2004

IEC

TC 112

International Standard

29.080.30  

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Scope

Lists the required test procedures for qualification of modifications of an established electrical insulation system (EIS) with respect to its thermal classification. Applicable to EIS used in wire-wound electrotechnical devices with input voltage up to 1000 V. The test procedures are comparative in that the performance of a candidate EIS is compared to that of a reference EIS, which has proven service experience in accordance with IEC 60791 or has been evaluated by one of the procedures given in IEC 61857 series.

Life cycle

NOW

WITHDRAWN
IEC 61858:1999 ED1
99.60 Withdrawal effective
Nov 10, 2004

REVISED BY

WITHDRAWN
IEC 61858:2004 ED2