SN EN 60034-18-21 : 1994 AMD 2 1996

Introduction
1. Scope
2. Normative references
3. General considerations
3.1 Relationship to Section 1
3.2 Standard procedures
3.3 Reference insulation system
3.4 Test objects
3.5 Verification of diagnostic tests
3.6 Thermal ageing test procedure
3.7 Ageing temperatures and sub-cycle lengths
4. Procedure 1: Motorette test procedure
4.1 General
4.2 Test objects
4.3 Thermal ageing sub-cycle
4.4 Diagnostic sub-cycle
4.5 Analyzing, reporting and classification
5. Procedure 2: Motor test procedure
5.1 General
5.2 Test objects
5.3 Thermal ageing sub-cycle
5.4 Diagnostic sub-cycle
5.5 Analyzing, reporting and classification
6. Procedure 3: Test procedure for stator windings in
     slots
6.1 General
6.2 Test objects
6.3 Thermal ageing sub-cycle
6.4 Diagnostic sub-cycle
6.5 Analyzing, reporting and classification
7. Procedure 4: Test procedure for pole windings
7.1 General
7.2 Test objects
7.3 Thermal ageing sub-cycle
7.4 Diagnostic sub-cycle
7.5 Analyzing, reporting and classification
8. Procedure 5: Test procedure for rotor windings in
     slots
8.1 General
8.2 Test objects
8.3 Thermal ageing sub-cycle
8.4 Diagnostic sub-cycle
8.5 Analyzing, reporting and classification
Annexes
A. Motorette construction (example)
B. Models for windings on poles (examples)
C. Equipment for moisture tests
ZA. (normative) Other international publications quoted
     in this standard with the references of the relevant
     European publications
Figures

Deals with the thermal evaluation and classification of insulation systems for wire wound (usually random wound) windings. Coverage includes: motorette test procedure; motor test procedure; test procedure for stator windings in slots; test procedure for pole windings; test procedure for rotor windings in slots. Also gives detailed annexes.