• SN EN 60947-5-4 : 1997

    Current The latest, up-to-date edition.

    LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - SECTION 4: METHODS OF ASSESSING THE PERFORMANCE OF LOW-ENERGY CONTACTS - SPECIAL TESTS

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    Published date:  12-01-2013

    Publisher:  Swiss Standards

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

    INTRODUCTION
    1 Scope and object
    2 Normative references
    3 Definitions and list of symbols used
       3.1 Definitions
       3.2 List of symbols used
    4 General principles
    5 General test method
    6 General characteristics
       6.1 Measurement methods
       6.2 Sequences of operations
       6.3 Electrical characteristics
       6.4 Characteristics of operation
    7 Characterization of defects
       7.1 Basic method
       7.2 Monitoring the load (figure 3)
    8 Ambient conditions
       8.1 Normal conditions
       8.2 Preconditioning
       8.3 Particular conditions
    9 Methods of reporting
       9.1 Failure criterion
       9.2 Reporting the failure rate
    10 Information to be provided in the test report
    Annex A (normative) Information to be supplied by the
             manufacturer
    Annex ZA (normative) Normative references to
             international publications with their
             corresponding European publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Applies to separable contacts used in the utilisation area considered such as switching elements for control circuits, considering two rated voltage areas.

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    Document Type Standard
    Publisher Swiss Standards
    Status Current
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