• BS EN 61439-1:2011 (published 2011-11)

    Current The latest, up-to-date edition.

    Low-voltage switchgear and controlgear assemblies General rules

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  30-11-2011

    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
    4 Symbols and abbreviations
    5 Interface characteristics
    6 Information
    7 Service conditions
    8 Constructional requirements
    9 Performance requirements
    10 Design verification
    11 Routine verification
    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) - User information template
    Annex D (informative) - Design verification
    Annex E (informative) - Rated diversity factor
    Annex F (normative) - Measurement of clearances and creepage
    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
    Annex I (Void)
    Annex J (normative) - Electromagnetic compatibility (EMC)
    Annex K (normative) - Protection by electrical separation
    Annex L (informative) - Clearances and creepage distances
            for North American region
    Annex M (informative) - North American temperature rise
            limits
    Annex N (normative) - Operating current and power loss
            of bare copper bars
    Annex O (informative) - Guidance on temperature rise
            verification
    Annex P (normative) - Verification of the short-circuit
            withstand strength of busbar structures by comparison
            with a tested reference design by calculation
    Bibliography
    Annex ZA (normative) - Normative references to international
             publications with their corresponding European
             publications
    Annex ZZ (informative) - Coverage of Essential Requirements
             of EC Directive 2004/108/EC

    Abstract - (Show below) - (Hide below)

    Specifies the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies.

    Scope - (Show below) - (Hide below)

    IEC 61439-1:2011 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low-voltage switchgear and controlgear assemblies. This standard cannot be used alone to specify an ASSEMBLY or used for a purpose of determining conformity. ASSEMBLIES shall comply with the relevant part of the IEC 61439 series; Parts 2 onwards. This standard applies to low-voltage switchgear and controlgear assemblies (ASSEMBLIES) only when required by the relevant ASSEMBLY standard as follows:
    - ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c.;
    - stationary or movable ASSEMBLIES with or without enclosure;
    - ASSEMBLIES intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment;
    - ASSEMBLIES designed for use under special service conditions, for example in ships and in rail vehicles provided that the other relevant specific requirements are complied with;
    - ASSEMBLIES designed for electrical equipment of machines provided that the other relevant specific requirements are complied with. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This second edition includes the following significant technical changes with respect to the last edition of IEC 61439-1:
    - revision of service conditions in Clause 7;
    - numerous changes regarding verification methods in Clause 10;
    - modification of routine verification in respect of clearances and creepage distances (see 11.3);
    - adaption of the tables in Annex C and Annex D to the revised requirements and verification methods;
    - revision of the EMC requirements in Annex J;
    - shifting of tables from Annex H to new Annex N;
    - new Annex O with guidance on temperature rise verification;
    - new Annex P with a verification method for short-circuit withstand strength (integration of the content of IEC/TR 61117);
    - update of normative references;
    - general editorial review.

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

    Committee PEL/17
    Development Note Together with BS EN 61439-2, it supersedes BS EN 60439-1. Supersedes 04/30123347 DC. (03/2010) Supersedes 09/30204029 DC. (11/2011)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Superseded By
    Supersedes

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

    14/30275063 DC : 0 BS 6423 - CODE OF PRACTICE FOR MAINTENANCE OF ELECTRICAL SWITCHGEAR AND CONTROLGEAR FOR VOLTAGES UP TO AND INCLUDING 1 KV
    13/30283398 DC : 0 BS 7656+A1 - SPECIFICATION FOR LOW-VOLTAGE POLE-MOUNTING FUSES (CUT-OUTS) - 315 ARATING
    BS 7288:2016 (published 2016-11) Specification for residual current devices with or without overcurrent protection for socket-outlets for household and similar uses
    BS 6423(2014) : 2014 CODE OF PRACTICE FOR MAINTENANCE OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    16/30337150 DC : 0 BS 7288 - SPECIFICATION FOR RESIDUAL CURRENT DEVICES WITH OR WITHOUT OVERCURRENT PROTECTION FOR SOCKET-OUTLETS FOR HOUSEHOLD AND SIMILAR USES
    BS 8488(2009) : 2009 PREFABRICATED WIRING SYSTEMS INTENDED FOR PERMANENT CONNECTION IN FIXED INSTALLATIONS - SPECIFICATION
    BS 7656(1993) : 1993 SPECIFICATION FOR LOW-VOLTAGE POLE-MOUNTING FUSES (CUT-OUTS) - 400 A RATING
    BS 4363(1998) : 1998 SPECIFICATION FOR DISTRIBUTION ASSEMBLIES FOR REDUCED LOW VOLTAGE ELECTRICITY SUPPLIES FOR CONSTRUCTION AND BUILDING SITES
    BS 7671(2008) : 2018 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
    BS 7671(2008) : 2008 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
    BS 4363(1998) : 1998 SPECIFICATION FOR DISTRIBUTION ASSEMBLIES FOR REDUCED LOW VOLTAGE ELECTRICITY SUPPLIES FOR CONSTRUCTION AND BUILDING SITES
    BS 7671(2008) : 2018 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS
    BS 7671(2008) : 2008 REQUIREMENTS FOR ELECTRICAL INSTALLATIONS - IET WIRING REGULATIONS

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

    EN 62262 : 2002 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES FOR ELECTRICAL EQUIPMENT AGAINST EXTERNAL MECHANICAL IMPACTS (IK CODE)
    IEC 61000-4-8 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-8: TESTING AND MEASUREMENT TECHNIQUES - POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST
    IEC 60112:2003+AMD1:2009 CSV METHOD FOR THE DETERMINATION OF THE PROOF AND THE COMPARATIVE TRACKING INDICES OF SOLID INSULATING MATERIALS
    IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
    IEC TR 61912-1:2007 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - OVERCURRENT PROTECTIVE DEVICES - PART 1: APPLICATION OF SHORT-CIRCUIT RATINGS
    IEC 60227-4:1992+AMD1:1997 CSV Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 4: Sheathed cables for fixed wiring
    IEC 61000-6-4:2006+AMD1:2010 CSV ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-4: GENERIC STANDARDS - EMISSION STANDARD FOR INDUSTRIAL ENVIRONMENTS
    EN 81346-2 : 2009 INDUSTRIAL SYSTEMS, INSTALLATIONS AND EQUIPMENT AND INDUSTRIAL PRODUCTS - STRUCTURING PRINCIPLES AND REFERENCE DESIGNATIONS - PART 2: CLASSIFICATION OF OBJECTS AND CODES FOR CLASSES
    EN 61000-6-1 : 2007 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
    IEC 60228:2004 Conductors of insulated cables
    IEC 61000-3-11 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-11: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS - EQUIPMENT WITH RATED CURRENT <= 75 A AND SUBJECT TO CONDITIONAL CONNECTION
    HD 21-3 : S3 AMD 2 2008 POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V - NON-SHEATHED CABLES FOR FIXED WIRING
    IEC 61000-4-4 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
    EN 61000-6-3:2007/A1:2011/AC:2012 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-3: GENERIC STANDARDS - EMISSION STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS (IEC 61000-6-3:2006/A1:2010)
    IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
    EN 60085 : 2008 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    EN 61000-4-11:2004/A1:2017 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-11: TESTING AND MEASUREMENT TECHNIQUES - VOLTAGE DIPS, SHORT INTERRUPTIONS AND VOLTAGE VARIATIONS IMMUNITY TESTS (IEC 61000-4-11:2004/A1:2017)
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    IEC 60073:2002 Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators
    IEC 60050-601:1985 International Electrotechnical Vocabulary (IEV) - Part 601: Generation, transmission and distribution of electricity - General
    EN 60073 : 2002 Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators
    EN 61000-3-11 : 2000 ELECTROMAGNETIC COMPATIBILITY (EMC) PART 3-11: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS - EQUIPMENT WITH RATED CURRENT <75A AND SUBJECT TO CONDITIONAL CONNECTION
    IEC 60050-471:2007 International Electrotechnical Vocabulary (IEV) - Part 471: Insulators
    IEC TS 61201:2007 Use of conventional touch voltage limits - Application guide
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    EN 60068-2-2:2007 ENVIRONMENTAL TESTING - PART 2-2: TESTS - TEST B: DRY HEAT
    IEC 61000-4-11:2004+AMD1:2017 CSV Electromagnetic compatibility (EMC) - Part 4-11: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests
    EN 61000-3-3 : 2013 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3-3: LIMITS - LIMITATION OF VOLTAGE CHANGES, VOLTAGE FLUCTUATIONS AND FLICKER IN PUBLIC LOW-VOLTAGE SUPPLY SYSTEMS, FOR EQUIPMENT WITH RATED CURRENT <= 16 A PER PHASE AND NOT SUBJECT TO CONDITIONAL CONNECTION (IEC 61000-3-3:2013)
    IEC 60502-1:2004+AMD1:2009 CSV Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV(Um = 36 kV) - Part 1: Cables for rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV)
    IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
    IEC TR 61912-2:2009 Low-voltage switchgear and controlgear - Over-current protective devices - Part 2: Selectivity under over-current conditions
    IEC 60227-3:1993+AMD1:1997 CSV Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 3: Non-sheathed cables for fixed wiring
    IEC 60204-1:2016 Safety of machinery - Electrical equipment of machines - Part 1: General requirements
    IEC 81346-1:2009 Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules
    IEC 60364-5-53:2001+AMD1:2002+AMD2:2015 CSV Electrical installations of buildings - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control
    HD 60364-4-41:2017/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-41: PROTECTION FOR SAFETY - PROTECTION AGAINST ELECTRIC SHOCK
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    IEC 61000-6-1 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
    IEC 60068-2-11:1981 ENVIRONMENTAL TESTING - TEST KA: SALT MIST
    IEC 61000-3-12:2011 Electromagnetic compatibility (EMC) - Part 3-12: Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and 75 A per phase
    EN ISO 2409 : 2013 PAINTS AND VARNISHES - CROSS-CUT TEST (ISO 2409:2013)
    2004/108/EC : 2004 DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 15 DECEMBER 2004 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO ELECTROMAGNETIC COMPATIBILITY AND REPEALING DIRECTIVE 89/336/EC
    EN ISO 178:2010/A1:2013 PLASTICS - DETERMINATION OF FLEXURAL PROPERTIES (ISO 178:2010/AMD 1:2013)
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    IEC 60695-2-11:2014 Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT)
    EN 60228:2005 COR 2005 CONDUCTORS OF INSULATED CABLES
    IEC 81346-2:2009 Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 2: Classification of objects and codes for classes
    IEC 61082-1:2014 RLV Preparation of documents used in electrotechnology - Part 1: Rules
    EN 60947-1:2007/A2:2014 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES (IEC 60947-1:2007/A2:2014)
    HD 22-4 : 200S4 CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V AND HAVING CROSS-LINKED INSULATION - PART 4: CORDS AND FLEXIBLE CABLES
    EN 60112 : 2003 AMD 1 2009 METHOD FOR THE DETERMINATION OF THE PROOF AND THE COMPARATIVE TRACKING INDICES OF SOLID INSULATING MATERIALS
    IEC 61000-4-6 : 4.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-6: TESTING AND MEASUREMENT TECHNIQUES - IMMUNITY TO CONDUCTED DISTURBANCES, INDUCED BY RADIO-FREQUENCY FIELDS
    CISPR 22:2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
    EN 61000-4-3 : 2006 AMD 2 2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST
    IEC 60085:2007 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    HD 60364-4-444:2010/AC:2012 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-444: PROTECTION FOR SAFETY - PROTECTION AGAINST VOLTAGE DISTURBANCES AND ELECTROMAGNETIC DISTURBANCES
    ISO 4628-3:2016 Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting
    IEC 61000-6-3:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
    EN 60447 : 2004 BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE INTERFACE, MARKING AND IDENTIFICATION - ACTUATING PRINCIPLES
    IEC 60865-1:2011 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
    EN ISO 4628-3 : 2016 PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART 3: ASSESSMENT OF DEGREE OF RUSTING (ISO 4628-3:2016)
    IEC 60447:2004 BASIC AND SAFETY PRINCIPLES FOR MAN-MACHINE INTERFACE, MARKING AND IDENTIFICATION - ACTUATING PRINCIPLES
    EN 55022:2010/AC:2011 INFORMATION TECHNOLOGY EQUIPMENT - RADIO DISTURBANCE CHARACTERISTICS - LIMITS AND METHODS OF MEASUREMENT (CISPR 22:2008)
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    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    EN 61000-4-8 : 2010 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-8: TESTING AND MEASUREMENT TECHNIQUES - POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST
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    EN 60695-2-10 : 2013 FIRE HAZARD TESTING - PART 2-10: GLOWING/HOT-WIRE BASED TEST METHODS - GLOW-WIRE APPARATUS AND COMMON TEST PROCEDURE (IEC 60695-2-10:2013)
    IEC 60364-4-44:2007+AMD1:2015 CSV Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances
    IEC 60245-4:2011 RUBBER INSULATED CABLES - RATED VOLTAGES UP TO AND INCLUDING 450/750 V - PART 4: CORDS AND FLEXIBLE CABLES
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    IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
    EN 60865-1 : 2012 SHORT-CIRCUIT CURRENTS - CALCULATION OF EFFECTS - PART 1: DEFINITIONS AND CALCULATION METHODS (IEC 60865-1:2011)
    IEC 60068-2-2:2007 Environmental testing - Part 2-2: Tests - Test B: Dry heat
    IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
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    IEC 62208:2011 EMPTY ENCLOSURES FOR LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - GENERAL REQUIREMENTS
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    EN 61082-1 : 2015 PREPARATION OF DOCUMENTS USED IN ELECTROTECHNOLOGY - PART 1: RULES (IEC 61082-1:2014)
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