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I.S. EN 60255-21-3:1997

Current
Current

The latest, up-to-date edition.

ELECTRICAL RELAYS - PART 21: VIBRATION, SHOCK, BUMP AND SEISMIC TESTS ON MEASURING RELAYS AND PROTECTION EQUIPMENT - SECTION 3: SEISMIC TESTS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1997

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
1 Scope and object
2 Normative references
3 Definitions
  3.1 Single axis sine sweep seismic test
  3.2 Biaxial test
  3.3 Biaxial multi-frequency random seismic test
  3.4 Standard response spectrum
  3.5 Damping
  3.6 Zero period acceleration
  3.7 Random motion sample
  3.8 Time-history
  3.9 Strong part of the time-history
4 Requirements for single axis sine sweep seismic
  test (method A)
  4.1 Main parameters
  4.2 Test apparatus and mounting
  4.3 Test severity classes
5 Requirements for biaxial multi-frequency random
  seismic test (method B)
  5.1 Main parameters
  5.2 Test apparatus and mounting
  5.3 Test severity classes
  5.4 Biaxial conditioning
6 Selection of test severity classes
  6.1 Recommendations for selection of test classes
  6.2 identification of test method and severity class
7 Test procedures
8 Criteria for acceptance
Annex A (informative) Seismic tests choice criteria
ANNEX ZA (normative) OTHER INTERNATIONAL PUBLICATIONS QUOTED
                       IN THIS STANDARD WITH THE REFERENCES OF
                       THE RELEVANT EUROPEAN PUBLICATIONS

Defines the vibration, shock, bump and seismic requirements applicable to electromechanical and static measuring relays and protection equipment, with or without output contacts.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
42
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
DIN EN 60255-21-3:1995-11 Identical
EN 60255-21-3:1995 Identical
SN EN 60255-21-3 : 1995 Identical
UNE-EN 60255-21-3:1996 Identical
BS EN 60255-21-3:1995 Identical
IEC 60255-21-3:1993 Identical

IEC 60255-21-2:1988 Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section Two: Shock and bump tests
EN 60068-2-57:2013 Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method
IEC 60068-2-57:2013 Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history and sine-beat method
IEC 60068-3-3:1991 Environmental testing - Part 3-3: Guidance - Seismic test methods for equipments
EN 60068-3-3:1993 Environmental testing - Part 3: Guidance - Seismic test methods for equipments
ISO 2041:2009 Mechanical vibration, shock and condition monitoring Vocabulary
HD 323.2.6 : 200S2 BASIC ENVIRONMENTAL TESTING PROCEDURES - TESTS - TEST FC AND GUIDANCE: VIBRATION (SINUSOIDAL)
IEC 60255-21-1:1988 Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)

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