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  • SN EN 60255-21-1 : 1995

    Current The latest, up-to-date edition.

    ELECTRICAL RELAYS - PART 21: VIBRATION, SHOCK, BUMP AND SEISMIC TESTS ON MEASURING RELAYS AND PROTECTION EQUIPMENT - SECTION 1: VIBRATION TESTS (SINUSOIDAL)

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

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

    Abstract - (Show below) - (Hide below)

    Describes the vibration, shock, bump and seismic requirements applicable to measuring relays and protection equipment. Gives vibration response and endurance test, fixing and measuring points, check and reference point, sweep-cycle, distortion, cross-over frequency and standard acceleration of gravity.

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

    Document Type Standard
    Publisher Swiss Standards
    Status Current
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