IEC 60255-21-1 : 1.0

Table of Contents

FOREWORD<br>PREFACE<br>Clause<br>1. Scope<br>2. Object<br>3. Definitions<br>&nbsp;&nbsp;&nbsp;3.1 Vibration test (sinusoidal)<br>&nbsp;&nbsp;&nbsp;3.2 Vibration response test<br>&nbsp;&nbsp;&nbsp;3.3 Vibration endurance test<br>&nbsp;&nbsp;&nbsp;3.4 Fixing point (*)<br>&nbsp;&nbsp;&nbsp;3.5 Measuring points (*)<br>&nbsp;&nbsp;&nbsp;3.6 Check point (*)<br>&nbsp;&nbsp;&nbsp;3.7 Reference point (*)<br>&nbsp;&nbsp;&nbsp;3.8 Sweep-cycle (*)<br>&nbsp;&nbsp;&nbsp;3.9 Distortion (*)<br>&nbsp;&nbsp;&nbsp;3.10 Cross-over frequency<br>&nbsp;&nbsp;&nbsp;3.11 Standard acceleration of gravity<br>4. Requirements for vibration tests (sinusoidal)<br>&nbsp;&nbsp;&nbsp;4.1 Test apparatus and mounting<br>&nbsp;&nbsp;&nbsp;4.2 Test severity classes<br>&nbsp;&nbsp;&nbsp;4.3 Test procedure<br>5. Criteria for acceptance<br>&nbsp;&nbsp;&nbsp;5.1 Acceptance criteria for vibration response test<br>&nbsp;&nbsp;&nbsp;5.2 Acceptance criteria for vibration endurance test<br>APPENDIX A - Output circuit response during vibration<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;response test

Abstract

Includes two types of vibration tests: the vibration response test and the vibration endurance test, and is generally based upon IEC 68-2-6. The requirements are applicable only to measuring relays and protection equipment in a new condition. The tests specified are type tests.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 95