• IEC TR 60865-2:2015

    Current The latest, up-to-date edition.

    Short-circuit currents - Calculation of effects - Part 2: Examples of calculation

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

    Language(s):  English

    Published date:  22-04-2015

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    1 Scope
    2 Normative references
    3 Symbols and units
    4 Example 1 - Mechanical effects on a 10 kV arrangement
       with single rigid conductors
    5 Example 2 - Mechanical effects on a 10 kV arrangement
       with multiple rigid conductors
    6 Example 3. - Mechanical effects on a high-voltage arrangement
       with rigid conductors
    7 Example 4. - Mechanical effects on a 110 kV arrangement
       with slack conductors
    8 Example 5. - Mechanical effects on strained conductors
    9 Example 6 - Mechanical effects on strained conductors with
       dropper in the middle of the span
    10 Example 7 - Mechanical effects on vertical main conductors
       (droppers)
    11 Example 8 - Thermal effect on bare conductors
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC TR 60865-2:2015(E) shows the application of procedures for the calculation of mechanical and thermal effects due to short circuits as presented in IEC 60865-1. Thus, this technical report is an addition to IEC 60865-1. It does not, however, change the basis for standardized procedures given in that publication. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. It includes the following changes. The determinations for auto reclosure together with rigid conductors have been revised. The configurations in cases of flexible conductor arrangements have been changed. The influence of mid-span droppers to the span has been included. For vertical cable-connection the displacement and the tensile force onto the lower fixing point may be calculated now. Additional recommendations for foundation loads due to tensile forces have been added. The subclause for determination of the thermal equivalent short-circuits current has been deleted (is part of IEC 60909-0:2001 now). The standard IEC 60865-1:2011 has been reorganized and some of the symbols have been changed to follow the conceptual characteristic of international standards.

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

    Committee TC 73
    Development Note Stability date: 2018. (04/2015)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

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

    CEI EN 61462 : 2008 COMPOSITE HOLLOW INSULATORS - PRESSURIZED AND UNPRESSURIZED INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS, ACCEPTANCE CRITERIA AND DESIGN RECOMMENDATIONS
    BS 7767(1994) : 1994 METHOD FOR ASSESSING THE SHORT-CIRCUIT WITHSTAND STRENGTH OF PARTIALLY TYPE-TESTED ASSEMBLIES (PTTA)
    BS EN 61230 : 2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    CSA C62155 : 2006 : R2015 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    I.S. EN 61462:2007 COMPOSITE HOLLOW INSULATORS - PRESSURIZED AND UNPRESSURIZED INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGE GREATER THAN 1 000 V - DEFINITIONS, TEST METHODS, ACCEPTANCE CRITERIA AND DESIGN RECOMMENDATIONS
    IEC 61230:2008 Live working - Portable equipment for earthing or earthing and short-circuiting
    IEC 60439-1:1999+AMD1:2004 CSV Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
    EN 62155 : 2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    EN 61230:2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    BS EN 62155 : 2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    BS EN 61462:2007 Composite hollow insulators. Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V. Definitions, test methods, acceptance criteria and design recommendations
    CEI EN 62155 : 2004 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    CSA C62155:2006 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    PD IEC/TR 62271-307:2015 (published 2015-09) High-voltage switchgear and controlgear Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
    98/232755 DC : DRAFT DEC 1998 IEC 61936-1 - POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    I.S. EN 62155:2003 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    IEC 61462:2007 Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1 000 V - Definitions, test methods, acceptance criteria and design recommendations
    VDE 0103-10 : 1998 COR 1 2004 SHORT-CIRCUIT CURRENTS - SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    CEI EN 61660-2 : 1999 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    IEC 62155:2003 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1 000 V
    IEC 61660-2:1997 Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 2: Calculation of effects
    I.S. EN 61660-2:1999 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - CALCULATION OF EFFECTS
    07/30170224 DC : DRAFT AUG 2007 BS EN 61230 - LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    BS EN 61264 : 1999 CERAMIC PRESSURIZED HOLLOW INSULATORS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR
    I.S. EN 61230:2008 LIVE WORKING - PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING
    IEC TR 62271-307:2015 High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
    EN 61462 : 2007 COMPOSITE HOLLOW INSULATORS - PRESSURIZED AND UNPRESSURIZED INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGE GREATER THAN 1000 V - DEFINITIONS, TEST METHODS, ACCEPTANCE CRITERIA AND DESIGN RECOMMENDATIONS
    BS EN 61660-2 : 1997 SHORT-CIRCUIT CURRENTS IN DC AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 2: CALCULATION OF EFFECTS
    04/30112476 DC : DRAFT APR 2004
    CSA C62155 : 2006 : R2011 HOLLOW PRESSURIZED AND UNPRESSURIZED CERAMIC AND GLASS INSULATORS FOR USE IN ELECTRICAL EQUIPMENT WITH RATED VOLTAGES GREATER THAN 1000 V
    EN 61660-2 : 1997 SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - CALCULATION OF EFFECTS

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

    IEC 61936-1:2010+AMD1:2014 CSV Power installations exceeding 1 kV a.c. - Part 1: Common rules
    IEC 60909-0:2016 Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents
    IEC 60865-1:2011 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
    EN 1990:2002/A1:2005/AC:2010 EUROCODE - BASIS OF STRUCTURAL DESIGN
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