EN 60034-18-21:2013

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 General considerations
4 Test objects and test specimens
5 Test procedures
6 Diagnostic sub-cycle
7 Reporting and functional evaluation of data from
   candidate and reference systems
8 Procedure 1: Motorette test procedure
9 Procedure 2: Motor test procedure
10 Procedure 3: Test procedure for stator windings in
   slots
11 Procedure 4: Test procedure for pole windings
12 Procedure 5: Test procedure for rotor windings in
   slots
Annex A (informative) - Motorette construction
        (examples)
Annex B (informative) - Models for windings on poles
        (examples)
Annex C (informative) - Equipment for moisture tests
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 60034-18-21:2012 gives test procedures for the thermal evaluation and classification of insulation systems used or proposed for use in wire-wound alternating current (a.c.) or direct current (d.c.) rotating electrical machines. The test performance of a candidate insulation system is compared to the test performance of a reference insulation system with proven service experience. The main technical changes with regard to the previous edition can be seen in the introduction of some basic statistical methods in the evaluation of comparative data. Moreover, the standard states a simpler use of different test procedures.