IEC 61858:1999
Collections
International IEC standards
Publication date
September 1999
Number of pages
23 p.
Reference
IEC 61858:1999
Print number
1
IEC 61858:1999
September 1999
International standard
Cancelled
Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS
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.
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Sumary
Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS
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.
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.
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Standard replaced by
(1)
IEC 61858:2004
November 2004
International standard
Cancelled
Ellectrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS
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