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IEC 60947-5-4 : 2.0

IEC 60947-5-4 : 2.0

LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5-4: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - METHOD OF ASSESSING THE PERFORMANCE OF LOW-ENERGY CONTACTS - SPECIAL TESTS

International Electrotechnical Committee

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Table of Contents

FOREWORD <br>INTRODUCTION <br>1 Scope and object <br>2 Normative references<br>3 Definitions and list of symbols used <br>&nbsp;&nbsp;&nbsp;3.1 Definitions <br>&nbsp;&nbsp;&nbsp;3.2 List of symbols used<br>4 General principles<br>5 General test method <br>6 General characteristics <br>&nbsp;&nbsp;&nbsp;6.1 Measurement methods<br>&nbsp;&nbsp;&nbsp;6.2 Sequences of operations <br>&nbsp;&nbsp;&nbsp;6.3 Electrical characteristics <br>&nbsp;&nbsp;&nbsp;6.4 Characteristics of operation<br>7 Characterization of defects <br>&nbsp;&nbsp;&nbsp;7.1 Basic method<br>&nbsp;&nbsp;&nbsp;7.2 Monitoring the load (figure 3)<br>8 Ambient conditions <br>&nbsp;&nbsp;&nbsp;8.1 Normal conditions<br>&nbsp;&nbsp;&nbsp;8.2 Preconditioning<br>&nbsp;&nbsp;&nbsp;8.3 Particular conditions <br>9 Methods of reporting<br>&nbsp;&nbsp;&nbsp;9.1 Failure criterion<br>&nbsp;&nbsp;&nbsp;9.2 Reporting the failure rate<br>10 Information to be provided in the test report<br>Annex A (normative) Information to be supplied by the <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;manufacturer <br>Bibliography <br>Figures<br>Tables

Abstract

Applicable to separable contacts used in the utilisation area considered such as switching element for control circuits.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 17

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