SN EN 61858 : 2008

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General considerations
5 Evaluation of the change of thickness of an EIM
      5.1 Samples
      5.2 Acceptance
6 Substitution of winding wire
      6.1 General
      6.2 Substitution of enamel
      6.3 Substitution of conductor material
      6.4 Alternate winding wire
7 Substitution of impregnating resin/varnish
      7.1 Thermal class determination
      7.2 Evaluation
             7.2.1 Thermal classes equal or better
             7.2.2 One thermal class lower
             7.2.3 Other criteria
8 Substitution of other EIMs
      8.1 Technically equivalent materials
      8.2 Previous evaluation
      8.3 Other
9 Evaluation of additions
      9.1 Addition of an impregnating resin/varnish
      9.2 Addition of other components
10 Single-point thermal ageing test
      10.1 Test objects
      10.2 Establishing the relative thermal index (RTI)
      10.3 Interpretation of results
Annex A (normative) Classes of winding wire
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications