• BS EN 60255-25 : 2000

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ELECTRICAL RELAYS - PART 25: ELECTROMAGNETIC EMISSION TESTS FOR MEASURING RELAYS AND PROTECTION EQUIPMENT

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-07-2014

    Language(s):  English

    Published date:  01-01-2000

    Publisher:  British Standards Institution

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

    1 Scope and object
    2 Normative references
    3 Definitions
    4 Emission limits
          4.1 Conducted emission limits
          4.2 Radiated emission limits
    5 General measurement requirements for emission tests
          5.1 Ambient noise in measurement test sites
          5.2 Requirements for measurement of conducted
                 emissions
          5.3 Requirements for measurement of radiated
                 emissions
    6 Test procedure for emission tests
          6.1 General configuration of the EUT
          6.2 Measurement of conducted emissions
          6.3 Measurement of radiated emissions
          6.4 Measurement of radiated emissions at
                 alternative distances
    7 Criteria for acceptance
    8 Test report
    Annex A (informative) The use of measuring relays and
                          protection equipment in other
                          locations
    Annex B (informative) Explanatory notes on the origin of
                          this emission standard
    Annex ZA (normative) Normative references to international
                         publications with their corresponding
                         European publications
    Figure 1 - Dimensions of test site
    Figure 2 - Minimum size of metal ground plane
    Table 1 - Conducted emission limits
    Table 2 - Radiated emission limits

    Abstract - (Show below) - (Hide below)

    Gives general requirements for the measurement of radio-frequency emissions emanating from measuring relays and protection equipment for power system protection. Includes control, monitoring and proc process interface equipment used with such systems. Based on CISPR 22. Defines the limits of acceptable conducted and radiated emissions and specifies test procedures. The object of the tests is to confirm that the equipment being tested will not cause conducted or radiated emissions above defined levels which might affect the satisfactory operation of other equipment. Any equipment or part of equipment which has the primary function of radio transmission and/or reception is excluded from this standard. Requirement defined are applicable to measuring relays and protection equipment in a new condition, all are type test onl

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

    Committee PEL/95
    Development Note Also numbered as IEC 60255-25. Supersedes 96/213882 DC. (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 60255-6 : 94 AC 95 ELECTRICAL RELAYS - MEASURING RELAYS AND PROTECTION EQUIPMENT
    CISPR 22:2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
    EN 55022:2010/AC:2011 INFORMATION TECHNOLOGY EQUIPMENT - RADIO DISTURBANCE CHARACTERISTICS - LIMITS AND METHODS OF MEASUREMENT (CISPR 22:2008)
    IEC 60050-446:1983 International Electrotechnical Vocabulary (IEV) - Part 446: Electrical relays
    IEC 60255-6:1988 Electrical relays - Part 6: Measuring relays and protection equipment
    IEC 60050-448:1995 International Electrotechnical Vocabulary (IEV) - Part 448: Power system protection
    CISPR 16-1:1999+AMD1:2002 CSV Specification for radio disturbance and immunity measuring apparatus and methods - Part 1: Radio disturbance and immunity measuring apparatus
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