IEEE DRAFT 1 : D4.0 2000

1 Overview
      1.1 Scope
      1.2 Purpose
2 References
3 Definitions
      3.1 General Definition
      3.2 Definitions related to electric equipment
      3.3 Definitions related to the evaluation of
             thermal capability
4 General concepts
5 Basic considerations in the preparation of standards
6 Evaluation of the thermal capability of insulating
      materials
      6.1 Introduction
      6.2 Thermal aging
      6.3 Temperature index and relative temperature
             index of an EIM
      6.4 Determination of temperature index for EIM by
             test
      6.5 Determination of material temperature index by
             experience
7 Limiting temperatures and their measurement for
      electrical insulation systems
      7.1 Introduction
      7.2 Derivation of temperature rise
      7.3 Methods of temperature determination
      7.4 Effects of altitude
8 Evaluation of electrical insulation systems
      8.1 Introduction
      8.2 Temperature classification of electrical
             insulating systems index, relative temperature
             index and halving interval
Annex A (informative) Illustration of thermal endurance
                      graph, temperature index, relative
                      temperature index and halving interval
Annex B (informative) Bibliography

Gives guidelines for the development and test procedures for: - thermal evaluation of electrical insulating materials - thermal evaluation of electrical insulation systems - thermal classification of electrical insulation systems for use in rating electric equipment.