SN EN 60034-18-31 : 1994 AMD 1 1996

Introduction
1. Scope
2. Normative references
3. General considerations
3.1 Relationship to Section 1
3.2 Designation of test procedures
3.3 Reference insulation system
3.4 Verification of diagnostic tests
4. Test objects and test specimens
4.1 Construction of test objects
4.2 Number of test specimens
4.3 Quality assurance tests
4.4 Initial diagnostic tests
5. Thermal ageing sub-cycles
5.1 Ageing temperatures and sub-cycle lengths
5.2 Means of heating
5.3 Ageing procedure
6. Diagnostic sub-cycle
6.1 Mechanical test
6.2 Moisture test
6.3 Voltage test
6.4 Other diagnostic tests
7. Analyzing, reporting and classification
Annex A - Formette construction (example)
Figures

Gives test procedures for the thermal evaluation and classification of insulation systems for use in a.c. or d.c. rotating electrical machines up to and including 50 MVA and 15 kV using form wound windings. Coverage includes: quality assurance tests, reference insulation system, means of heating, ageing procedure, mechanical test, moisture test and voltage test.