IEC TR 62271-302 : 1.0

Table of Contents

FOREWORD
1 General
2 Normal and special service conditions
3 Terms and definitions
4 Ratings
5 Design and construction
6 Performance verification tests and parameter definition
   tests
7 Routine tests
8 Guide to the selection of circuit-breakers for service
9 Information to be given with enquiries, tenders and
   orders
10 Rules for transport, storage, installation, operation
   and maintenance
11 Safety
12 Influence of the product on the environment
Annex A (informative) - Guidance upon the maximum
        timing difference between the instants of
        contact touch/contact separation of breaking
        units of the same pole for circuit-breakers
        intended for controlled switching
Annex B (informative) - Guidance for the application of
        the results of parameter definition/combination
        tests
Annex C (informative) - Testing of circuit-breakers with
        intentionally non-simultaneous poles taking into
        account controller failure
Annex D (informative) - Simplified single-phase example
        showing the relationship between winding voltage,
        core flux and magnetizing current for a power
        transformer
Annex E (informative) - An example of the effect of
        contact wear on RDDS
Annex F (informative) - Examples to support the
        consideration of various operating conditions
        as independent of each other
Annex G (informative) - Examples of the effect of idle
        time upon operating time
Bibliography

Abstract

Offers guidance on the design, construction, specification and testing of circuit-breakers with intentional non-simultaneous pole operation which are excluded from the scope of IEC 62271-100.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 17