IEC 60255-21-2:1988

FOREWORD
PREFACE
Clause
1. Scope
2. Object
3. Definitions
   3.1 Shock test
   3.2 Shock response test
   3.3 Shock withstand test
   3.4 Bump test
4. Requirements for shock and bump tests
   4.1 Test apparatus and mounting
   4.2 Shock test severity classes
   4.3 Bump test severity classes
   4.4 Recommendations for the selection of shock and
       bump test severity classes
   4.5 Test procedure for shock response test
   4.6 Test procedure for shock withstand test and bump
       test
5. Criteria for acceptance
   5.1 Acceptance criteria for shock response test
   5.2 Acceptance criteria for shock withstand test and
       for bump test
FIGURES
APPENDIX A - Selection criteria for shock and bump test
             parameters a) and output circuit response
             during shock response test b)

This standard includes two types of tests: -the shock test (on energized and non-energized specimen), -the bump test (on non-energized specimen). These requirements are applicable only to measuring relays and protection equipment in a new condition.