IEC 60638 : 1.0

Table of Contents

FOREWORD
PREFACE
SECTION ONE - GENERAL
Clause
1. Scope
2. Informative character of the codes
SECTION TWO - CRITERIA
3. General
4. Definitions
5. Criteria
SECTION THREE - OBSERVATIONS
6. Rules for observations
7. Interpretation of records
8. Frequency of observations
SECTION FOUR - RECORD OF OBSERVATIONS
9. General
10. Records of sparking and glowing
11. Records of commutator condition
12. Records of brush condition
13. Examples of records
Plate I, II, III - Sparking codes
Plate IV - Commutator condition
Plate V, VI - Brush condition
APPENDIX A - Variable opacity wedge for the observation
             of sparks

Abstract

Applies to all machines covered by Publication 349 and having cylindrical commutators. It completes this publication as regards the criteria for assessment of commutation, the definition of the tests during which observations shall be made, the code recommended for the specification of these observations.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 9