RO
SR EN 61858:2004
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 EN 60791 or has been evaluated by one of the procedures given in IEC 61857 series.
Status :
Withdrawn
Approval date : 5/31/2004
Publish date : 6/1/2004
Withdrawal date : 2/1/2008
Number of pages : 32
ICS : 29.080.30 Insulation systems
Technical Committee : 5 - Insulation materials and electrical insulation systems
- Normative reference SR EN 60172:2002
- Normative reference SR CEI 60791:1997
- Normative reference SR EN 60505:2003
- Normative reference SR EN 60216-1:2003
- Replaced by SR EN 61858:2005