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IEC 60255-21-3:1993

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 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French, Spanish, Castilian

Published date

21-09-1993

FOREWORD
Clause
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
FIGURES
Annex A - Seismic tests choice criteria

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

DevelopmentNote
Stability Date: 2018. (09/2017)
DocumentType
Standard
Pages
29
PublisherName
International Electrotechnical Committee
Status
Current

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CEI EN 61850-3 : 2014 COMMUNICATION NETWORKS AND SYSTEMS FOR POWER UTILITY AUTOMATION - PART 3: GENERAL REQUIREMENTS
CEI EN 60255-27 : 2014 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 27: PRODUCT SAFETY REQUIREMENTS
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I.S. EN 60255-1:2010 MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 1: COMMON REQUIREMENTS
EN 50216-11:2008 Power transformer and reactor fittings - Part 11: Oil and winding temperature indicators
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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
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
ISO 2041:2009 Mechanical vibration, shock and condition monitoring Vocabulary
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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