• IEC 60364-5-523:1999

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Section 523: Current-carrying capacities in wiring systems

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  01-08-2001

    Language(s):  English - French

    Published date:  19-02-1999

    Publisher:  International Electrotechnical Committee

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

    Foreword
    523.1 General
    523.2 Ambient temperature
    523.3 Soil thermal resistivity
    523.4 Groups containing more than one circuit
    523.5 Number of loaded conductors
    523.6 Conductors in parallel
    523.7 Variation of installation conditions along a route
    523.8 Methods of installation
    Annex A Examples of one method of simplification of the tables
    of section 523
    Annex B Formula to express current-carrying capacities
    Annex C Effect of harmonic currents on balanced three-phase systems
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides requirements for a satisfactory life of conductors and insulation subjected to the thermal effects of carrying current for prolonged periods of time in normal service. Includes a series of tables containing the relationship between cross-sectional area of conductors and the load depending on type of conductor material, type of insulation and method of installation. Relates only to non-armoured cables and insulated conductors having a nominal voltage not exceeding 1 kV a.c. or 1,5 kV d.c. Does not apply to armoured single-core cables.

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

    Committee TC 64
    Development Note This Standard Supersedes IEC 60364 PT5 CH52 SEC523: 1983 Supersedes IEC 60448 (03/2001)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

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

    00/203768 DC : DRAFT AUG 2000 IEC TR 61200-523 - ELECTRICAL INSTALLATION GUIDE - PART 523: DEVELOPMENT OF SIMPLIFIED CABLE SELECTION TABLES
    I.S. HD 384-7-708:2005 ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 7: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - SECTION 708: ELECTRICAL INSTALLATIONS IN CARAVAN PARKS
    05/30135633 DC : DRAFT JUN 2005 IEC 60269-1 ED 4 - LOW-VOLTAGE FUSES - PART 1: GENERAL REQUIREMENTS
    PD CLC/TR 50479:2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    HD 384.7.708 : 2005 ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 7: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR LOCATIONS - SECTION 708: ELECTRICAL INSTALLATIONS IN CARAVAN PARKS
    IEC 61545:1996 Connecting devices - Devices for the connection of aluminium conductors in clamping units of any material and copper conductors in aluminium bodied clamping units
    I.S. EN 50491-3:2009 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS
    S.R. CLC/TR 50479:2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    VDE 0804 : 1989 AMD 1 1992 TELECOMMUNICATIONS; ADDITIONAL REQUIREMENTS FOR CONSTRUCTION AND TESTING OF APPARATUS
    05/30129619 DC : DRAFT FEB 2005 IEC 61537 ED.2 - CABLE TRAY SYSTEMS AND CABLE LADDER SYSTEMS FOR CABLE MANAGEMENT
    IEC 61991:2000 Railway applications - Rolling stock - Protective provisions against electrical hazards
    12/30235292 DC : 0 BS EN 50343 - RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING
    I.S. HD 384.6.61 S2:2003 ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 6-61: VERIFICATION - INITIAL VERIFICATION
    CLC/TR 50479 : 2007 ELECTRICAL INSTALLATION GUIDE - SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - WIRING SYSTEMS - LIMITATION OF TEMPERATURE RISE OF CONNECTING INTERFACES
    BS EN 50090-2-2 : 1997 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) - PART 2-2: SYSTEM OVERVIEW - GENERAL TECHNICAL REQUIREMENTS
    98/705686 DC : DRAFT MAR 1998 PREN 13135-1 - CRANES - SAFETY - DESIGN - REQUIREMENTS FOR EQUIPMENT - PART 1: ELECTROTECHNICAL EQUIPMENT
    BS EN 50491-3:2009 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS
    DIN VDE 0800-9 : 1989 TELECOMMUNICATIONS; KU-VALUES OF SAFETY RELEVANT COMPONENTS AND INSULATIONS
    CSA E60079.7 : 2003 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 7: INCREASED SAFETY "E"
    DIN VDE 0636-10 : 1992 LOW-VOLTAGES FUSES; GENERAL REQUIREMENTS
    01/219359 DC : DRAFT JUNE 2001 IEC 60364-6-61/A3 ED.1 - ELECTRICAL INSTALLATIONS OF BUILDINGS - PART 6-61: VERIFICATION - INITIAL VERIFICATION
    EN 50090-2-2:1996/A2:2007 HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) - PART 2-2: SYSTEM OVERVIEW - GENERAL TECHNICAL REQUIREMENTS
    EN 50491-3 : 2009 GENERAL REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) - PART 3: ELECTRICAL SAFETY REQUIREMENTS
    HD 384.6.61 : 200S2 ELECTRICAL INSTALLATIONS OF BUILDINGS - VERIFICATION - INITIAL VERIFICATION

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

    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
    IEC 60287-2-2:1995 Electric cables - Calculation of the current rating - Part 2: Thermal resistance - Section 2: A method for calculating reduction factors for groups of cables in free air, protected from solar radiation
    IEC 60287-2-1:2015 RLV Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    IEC 60287-3-2:2012 Electric cables - Calculation of the current rating - Part 3-2: Sections on operating conditions - Economic optimization of power cable size
    IEC 60287-3-1:2017 Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions
    IEC 60364-4-42:2010+AMD1:2014 CSV Low-voltage electrical installations - Part 4-42: Protection forsafety - Protection against thermal effects
    IEC 60287-1-1:2006+AMD1:2014 CSV Electric cables - Calculation of the current rating - Part 1-1:Current rating equations (100 % load factor) and calculation of losses - General
    IEC 60364-5-52:2009 Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
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