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IEC 60947-5-4 : 2.0

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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.

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