• S.R. CLC/TR 50480:2011

    Current The latest, up-to-date edition.

    DETERMINATION OF CROSS-SECTIONAL AREA OF CONDUCTORS AND SELECTION OF PROTECTIVE DEVICES

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2011

    Publisher:  National Standards Authority of Ireland

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

    Foreword
    Introduction
    1 Scope
    2 Reference documents
    3 Symbols
    4 Parameters
    5 Characteristics of installations
    6 Characteristics of the supply source
    7 Characteristics of protective devices
    8 Protection against overload currents
    9 Determination of breaking capacity of protective devices
    10 Ability to withstand electro-dynamic stresses for busbar
       trunking systems
    11 Fault protection (protection against indirect contact)
    12 Verification of thermal stress in conductors
    13 Voltage drop
    Annex A - Conductor resistances
    Bibliography

    Abstract - (Show below) - (Hide below)

    Pertains to low-voltage installations with a nominal system frequency of 50 Hz in which the circuits consist of insulated conductors, cables or busbar trunking systems.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    IEC 60364-5-54:2011 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors
    IEC 60364-4-43:2008 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
    IEC 60228:2004 Conductors of insulated cables
    HD 60364-4-43 : 2010 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 4-43: PROTECTION FOR SAFETY - PROTECTION AGAINST OVERCURRENT
    IEC 60724:2000+AMD1:2008 CSV Short-circuit temperature limits of electric cables with rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um = 3,6 kV)
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    EN 61439-1:2011 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1: GENERAL RULES (IEC 61439-1:2011)
    IEC 60439-2:2000+AMD1:2005 CSV Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways)
    IEC 60269-2:2013+AMD1:2016 CSV Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K
    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
    EN 60228:2005 COR 2005 CONDUCTORS OF INSULATED CABLES
    IEC 60269-1:2006+AMD1:2009+AMD2:2014 CSV Low-voltage fuses - Part 1: General requirements
    IEC 60269-3:2010+AMD1:2013 CSV Low-voltage fuses - Part 3: Supplementary requirements for fuses foruse by unskilled persons (fuses mainly for household or similar applications) - Examples of standardized systems of fuses A to F
    IEC 60439-1:1999+AMD1:2004 CSV Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
    EN 60439-1:1999/A1:2004 LOW VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 1 - TYPE TESTED AND PARTIALLY TYPE TESTED ASSEMBLIES
    HD 384.5.54 : 200S1 ELECTRICAL INSTALLATION OF BUILDINGS - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
    HD 60269-2:2013 Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K
    IEC 61439-1:2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    IEC 60947-2:2016 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
    EN 60947-2:2017 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS (IEC 60947-2:2016 + COR1:2016)
    HD 60269-3:2010/A1:2013 LOW-VOLTAGE FUSES - PART 3: SUPPLEMENTARY REQUIREMENTS FOR FUSES FOR USE BY UNSKILLED PERSONS (FUSES MAINLY FOR HOUSEHOLD AND SIMILAR APPLICATIONS) - EXAMPLES OF STANDARDIZED SYSTEMS OF FUSES A TO F
    EN 60439-2:2000/A1:2005 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - PART 2: PARTICULAR REQUIREMENTS FOR BUSBAR TRUNKING SYSTEMS (BUSWAYS)
    IEC 60364-5-52:2009 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
    EN 60269-1:2007/A2:2014 LOW-VOLTAGE FUSES - PART 1: GENERAL REQUIREMENTS (IEC 60269-1:2006/A2:2014)
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