Table of Contents

1 Overview
2 Normative references
3 Definitions
4 Safety considerations
5 Insulation resistance-general theory
6 Factors affecting insulation resistance
7 Conditions for measuring insulation resistance
8 Winding connections for insulation
   resistance tests
9 Methods of measuring insulation resistance
10 Precautions
11 Interpretation of insulation resistance and
   polarization index test results
12 Recommended minimum value of polarization
   index and insulation resistance
Annex A (informative) - Variants in polarization index
Annex B (informative) - Direct versus alternating
        voltage testing
Annex C (informative) - Monitoring charge and
        discharge currents
Annex D (informative) - Insulation resistance profiling
        (IRP)
Annex E (informative) - Bibliography

Abstract

Defines a recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 750 W or greater.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 43 : 1995