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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    BS EN 61439-1 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-11-2011

    Language(s):  English

    Published date: 

    Publisher:  British Standards Institution

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
       3.1 General terms
       3.2 Constructional units of ASSEMBLIES
       3.3 External design of ASSEMBLIES
       3.4 Structural parts of ASSEMBLIES
       3.5 Conditions of installation of ASSEMBLIES
       3.6 Insulation characteristics
       3.7 Protection against electric shock
       3.8 Characteristics
       3.9 Verification
       3.10 Manufacturer/User
    4 Symbols and abbreviations
    5 Interface characteristics
       5.1 General
       5.2 Voltage ratings
       5.3 Current ratings
       5.4 Rated frequency (f[n])
       5.5 Other characteristics
    6 Information
       6.1 ASSEMBLY designation marking
       6.2 Documentation
       6.3 Device and/or component identification
    7 Service conditions
       7.1 Normal service conditions
       7.2 Special service conditions
       7.3 Conditions during transport, storage and installation
    8 Constructional requirements
       8.1 Strength of materials and parts
       8.2 Degree of protection provided by an ASSEMBLY
             enclosure
       8.3 Clearances and creepage distances
       8.4 Protection against electric shock
       8.5 Incorporation of switching devices and components
       8.6 Internal electrical circuits and connections
       8.7 Cooling
       8.8 Terminals for external conductors
    9 Performance requirements
       9.1 Dielectric properties
       9.2 Temperature rise limits
       9.3 Short-circuit protection and short-circuit withstand
             strength
       9.4 Electromagnetic compatibility (EMC)
    10 Design verification
       10.1 General
       10.2 Strength of materials and parts
       10.3 Degree of protection of ASSEMBLIES
       10.4 Clearances and creepage distances
       10.5 Protection against electric shock and integrity of
             protective circuits
       10.6 Incorporation of switching devices and components
       10.7 Internal electrical circuits and connections
       10.8 Terminals for external conductors
       10.9 Dielectric properties
       10.10 Verification of temperature rise
       10.11 Short-circuit withstand strength
       10.12 Electromagnetic compatibility (EMC)
       10.13 Mechanical operation
    11 Routine verification
       11.1 General
       11.2 Degree of protection of enclosures
       11.3 Clearances and creepage distances
       11.4 Protection against electric shock and integrity of
             protective circuits
       11.5 Incorporation of built-in components
       11.6 Internal electrical circuits and connections
       11.7 Terminals for external conductors
       11.8 Mechanical operation
       11.9 Dielectric properties
       11.10 Wiring, operational performance and function
    Annex A (normative) - Minimum and maximum cross-section of
            copper conductors suitable for connection to terminals
            for external conductors
    Annex B (normative) - Method of calculating the cross-sectional
            area of protective conductors with regard to thermal
            stresses due to currents of short duration
    Annex C (informative) - Items subject to agreement between the
            assembly manufacturer and the user
    Annex D (informative) - Design verification
    Annex E (informative) - Rated diversity factor
      E.1 General
      E.2 Rated diversity factor of an ASSEMBLY
      E.3 Rated diversity factor of a group of outgoing circuits
      E.4 Rated diversity factor and intermittent duty
    Annex F (normative) - Measurement of clearances and creepage
            distances
      F.1 Basic principles
      F.2 Use of ribs
    Annex G (normative) - Correlation between the nominal
            voltage of the supply system and the rated impulse
            withstand voltage of the equipment
    Annex H (informative) - Operating current and power loss of
            copper conductors
      J.1 General
      J.2 Terms and definitions
    Annex K (normative) - Protection by electrical separation
      K.1 General
      K.2 Electrical separation
      K.3 Class II equipment or equivalent insulation
    Annex L (informative) - Clearances and creepage distances
            for North American region
    Annex M (informative) - North American temperature rise limits
    Annex N (informative) - Operating current and power loss of
            bare copper busbars
    Annex O (informative) - Guidance on temperature rise verification
    Annex P (normative) - A method for assessing the short-circuit
            withstand strength of the main circuits of an ASSEMBLY
      P.1 General
      P.2 Definitions
      P.3 Method of interpolation
      P.4 Conditions for application
    Bibliography

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

    Comment Closes On
    Committee PEL/17/3
    Document Type Draft
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

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