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  • IEC 60068-2-31:2008

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    Environmental testing - Part 2-31: Tests - Test Ec: Rough handling shocks, primarily for equipment-type specimens

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French, Spanish, Castilian

    Published date:  21-05-2008

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    1 Scope
    2 Normative references
    3 General description of test
    4 Initial measurements
    5 Testing
      5.1 Drop and topple
          5.1.1 Description
          5.1.2 Test Facility
          5.1.3 Testing procedures
      5.2 Free fall - Procedure 1
          5.2.1 Description
          5.2.2 Test Facility
          5.2.3 Test severity
          5.2.4 Testing procedures
      5.3 Free fall repeated - Procedure 2
          5.3.1 Description
          5.3.2 Test facility
          5.3.3 Test severity
          5.3.4 Testing procedure
    6 Final measurements
    7 Information to be included in the relevant specification
      7.1 Drop and topple test
      7.2 Free fall and free fall repeated tests
    8 Information to be given in the test report
    Annex A (normative) Test apparatus for repeated
            free fall test - Procedure 2
    Annex B (informative) Selection of test severities
            for free fall tests - Guidance

    Abstract - (Show below) - (Hide below)

    IEC 60068-2-31:2008 deals with a test procedure for simulating the effects of rough handling shocks, primarily in equipment-type specimens, the effects of knocks, jolts and falls which may be received during repair work or rough handling in operational use. This procedure does not simulate the effects of impacts received during transportation as loosely constrained cargo. Where the effects of loose cargo transportation are to be assessed, test Ee: Bounce should be used. Also this procedure does not simulate the effects of shock applied to installed equipments. Where this effect is to be assessed refer to test Ea: Shock. Testing should only be specified for equipment likely to receive such rough handling, for example those of small to medium size and mass, and should only be applied to those faces and corners where there is a risk of such treatment being encountered. In general, equipment which is frequently handled and serviced (for example field equipment and unit spares) can be considered at risk, whereas equipment forming an integral part of a permanent installation would not normally be considered at risk and need not be tested. Testing may not be applicable to fragile unprotected equipment of irregular shape (for example aircraft nose radar) which, when removed from the installation would be contained in a handling frame or jig. It may however be applicable to these items of equipment when they are in their transit case or in their handling frame or jig. For equipment which stands only on one face (for example the normal base) the test is generally only applied to that face. Shock tests are performed on the specimen when fixed to the test machine. Drop and topple, free fall, repeated free fall and bounce tests are performed with the specimen free. This second edition cancels and replaces the first edition, published in 1969 and constitutes a technical revision. The major changes with regard to the previous edition concern the introduction of soft packaging tests, where appropriate. This new edition of IEC 60068-2-31 now incorporates the second edition of IEC 60068-2-32 (1975).

    General Product Information - (Show below) - (Hide below)

    Committee TC 104
    Development Note Supersedes IEC 60068-2-32. (05/2008) Stability Date: 2020. (10/2012)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

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