IEC 60034-18-22:2000

Foreword
Introduction
1 Scope
2 Normative references
3 General
   3.1 Category I insulation components
   3.2 Category II insulation components
   3.3 Definition of generic identity
4 Documentation
5 General substitution procedures
6 Component substitution category
   6.1 Category I component substitution
   6.2 Category II component substitution
7 Sealed tube test procedure
   7.1 General
   7.2 Test apparatus
   7.3 Sample preparation
   7.4 Contents of tubes
   7.5 Preparation of tubes
   7.6 Thermal conditioning
   7.7 Opening procedure
   7.8 Evaluation of samples
   7.9 Requirement
Figure 1 - Test apparatus
Thermal ageing test methods for varnish
Table 1 - Thermal ageing test methods for varnish

IEC 60034-18-22:2000 gives test procedures for the thermal evaluation and classification of changes and insulation component substitution in insulation systems used or proposed for use in a proven insulation system used in wire-wound windings. The test procedures are comparative in that the performance of a candidate system is compared to that of a reference system which has previously been proved by experience or has been evaluated by one of the procedures given in IEC 60034-18-21 and to which the change or substitution is intended.