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  • IEC 60137:2017

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    Insulated bushings for alternating voltages above 1000 V

    Available format(s):  Hardcopy, PDF 1 User

    Language(s): 

    Published date:  22-06-2017

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Ratings
    5 Operating conditions
    6 Ordering information and markings
    7 Test requirements
    8 Type tests
    9 Routine tests
    10 Requirements and tests for non-capacitance graded
       bushings of rated highest voltages for equipment up
       to and including 52 kV
    11 Recommendations for transport, storage, erection,
       operation and maintenance
    12 Safety
    13 Environmental aspects
    Annex A (informative) - Determination of the hottest
            spot in bushings with conductors embedded in
            the insulation material
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60137:2017 is now available as IEC 60137:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

    IEC 60137:2017 specifies the characteristics and tests for insulated bushings.
    This standard is applicable to bushings, as defined in Clause 3, intended for use in electrical apparatus, machinery, transformers, switchgear and installations for three-phase alternating current systems, having highest voltage for equipment above 1 000 V and power frequencies of 15 Hz up to and including 60 Hz.
    Subject to special agreement between purchaser and supplier, this standard may be applied, in part or as a whole, to the following:
    - bushings used in other than three-phase systems;
    - bushings for high-voltage direct current systems;
    - bushings for testing transformers;
    - bushings for capacitors.
    Special requirements and tests for transformer bushings in this standard apply also to reactor bushings.
    This standard is applicable to bushings made and sold separately. Bushings which are a part of an apparatus and which cannot be tested according to this standard should be tested with the apparatus of which they form part. This edition includes the following significant technical changes with respect to the previous edition:
    - Resin-impregnated synthetic (RIS) bushings has been introduced.
    - Bushings with Um ≤ 1,1 kV, Um = 1100 kV and Um = 1200 kV have been introduced.
    - Temperature rise testing has been included for liquid-insulated bushings according to clause to 3.4.
    - Introducing dry lightning impulse testing as a routine test for all transformer bushings with Um > 72,5 kV.
    - The altitude correction procedure has been revised ( > 1 000 m).
    - An explanation about Very Fast Transient (VFT) phenomenon and its impact on bushings has been included.
    The contents of the corrigendum of May 2018 have been included in this copy.

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

    Committee TC 36/SC 36A
    Development Note Stability Date: 2019. (06/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

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

    I.S. EN 62271-102:2005 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES (IEC 62271-102:2001 (EQV))
    I.S. EN 62271-100:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS
    UNE-EN 50152-3-3:2016 Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-3: Measurement, control and protection devices for specific use in a.c. traction systems - Voltage transformers
    IEEE C57.19.100 : 2012 GUIDE FOR APPLICATION OF POWER APPARATUS BUSHINGS
    UNE-EN 50152-3-2:2016 Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems - Current transformers
    UNE-EN 50180-1:2015 Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 1: General requirements for bushings
    UNE-EN 60076-16:2012 Power transformers - Part 16: Transformers for wind turbines applications
    BS EN 62271-104:2015 (published 2015-03) High-voltage switchgear and controlgear Alternating current switches for rated voltages higher than 52 kV
    IEC 60076-6:2007 Power transformers - Part 6: Reactors
    IEC 61788-14:2010 Superconductivity - Part 14: Superconducting power devices - General requirements for characteristic tests of current leads designed for powering superconducting devices
    EN 50243:2002 Outdoor bushings for 24 kV and 36 kV and for 5 kA and 8 kA, for liquid filled transformers
    IEC 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    IEC 60076-16:2011 Power transformers - Part 16: Transformers for wind turbine applications
    EN IEC/IEEE 65700 : 2018 BUSHINGS FOR DC APPLICATION (IEC/IEEE 65700-19-03:2014)
    BS EN 50152-1 : 2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    EN 62271-104:2015 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 104: ALTERNATING CURRENT SWITCHES FOR RATED VOLTAGES HIGHER THAN 52 KV (IEC 62271-104:2015)
    IEC 62271-100:2008+AMD1:2012+AMD2:2017 CSV High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
    IEC 60076-13:2006 Power transformers - Part 13: Self-protected liquid-filled transformers
    IEC 60214-1:2014 Tap-changers - Part 1: Performance requirements and test methods
    EN 60214 : 1997 ON-LOAD TAP-CHANGERS
    EN 62271-109:2009/A1:2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES (IEC 62271-109:2008/A1:2013)
    BS EN 50386 : 2010 BUSHINGS UP TO 1 KV AND FROM 250 A TO 5 KA, FOR LIQUID FILLED TRANSFORMERS
    EN 62271-205:2008/corrigendum:2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 205: COMPACT SWITCHGEAR ASSEMBLIES FOR RATED VOLTAGES ABOVE 52 KV
    EN 50152-3-3:2016 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-3: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - VOLTAGE TRANSFORMERS
    EN 61788-14 : 2010 SUPERCONDUCTIVITY - PART 14: SUPERCONDUCTING POWER DEVICES - GENERAL REQUIREMENTS FOR CHARACTERISTIC TESTS OF CURRENT LEADS DESIGNED FOR POWERING SUPERCONDUCTING DEVICES
    IEC/IEEE 60076-57-129:2017 Power transformers - Part 57-129: Transformers for HVDC applications
    EN 62199 : 2004 BUSHINGS FOR D.C. APPLICATION
    EN 62271-211:2014/AC:2017-09 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 211: DIRECT CONNECTION BETWEEN POWER TRANSFORMERS AND GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES ABOVE 52 KV (IEC 62271-211:2014/COR2:2017)
    EN 60298:1996/A11:1999 A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
    EN 60265-2:1993/A2:1998 HIGH-VOLTAGE SWITCHES - HIGH-VOLTAGE SWITCHES FOR RATED VOLTAGES OF 52 KV AND ABOVE
    EN 62271-102:2002/AC:2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES (IEC 62271-102:2001/A2:2013)
    BS EN 50152-3-3:2016 Railway applications. Fixed installations. Particular requirements for a.c. switchgear Measurement, control and protection devices for specific use in a.c. traction systems. Voltage transformers
    BS EN 60076-3 : 2013 POWER TRANSFORMERS - PART 3: INSULATION LEVELS, DIELECTRIC TESTS AND EXTERNAL CLEARANCES IN AIR
    EN 50152-3-2 : 2016 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-2: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - CURRENT TRANSFORMERS
    IEC 62271-104:2015 High-voltage switchgear and controlgear - Part 104: Alternating current switches for rated voltages higher than 52 kV
    CSA C88.1 : 1996 : R2011 POWER TRANSFORMERS AND REACTOR BUSHINGS
    BS EN 62271-100 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS (IEC 62271-100:2008)
    IEEE 386-2016 SEPARABLE INSULATED CONNECTOR SYSTEMS FOR POWER DISTRIBUTION SYSTEMS RATED 2.5 KV THROUGH 35 KV
    IEC 62271-203:2011 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    IEC 62271-109:2008+AMD1:2013 CSV High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
    IEC 60076-3:2013+AMD1:2018 CSV POWER TRANSFORMERS - PART 3: INSULATION LEVELS, DIELECTRIC TESTS AND EXTERNAL CLEARANCES IN AIR
    IEC TS 61463:2016 Bushings - Seismic qualification
    IEC 60076-1:2011 Power transformers - Part 1: General
    IEC 60420:1990 High-voltage alternating current switch-fuse combinations
    BIS IS/IEC 62271-100 : 2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS
    BS EN 60076-6:2008 Power transformers Reactors
    BS EN 60076-14:2013 Power transformers Liquid-immersed power transformers using high-temperature insulation materials
    BS 5227:1984 SPECIFICATION FOR A.C. METAL ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 72.5 KV
    BS 4571:1994 ON-LOAD TAP-CHANGERS
    BS EN 50152-2:2012 Railway applications. Fixed installations. Particular requirements for alternating current switchgear Disconnectors, earthing switches and switches with nominal voltage above 1 kV
    BS 5227:1992 SPECIFICATION FOR a.c. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 kV AND UP TO AND INCLUDING 52 kV
    BS EN 60298:1996 A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
    BS EN 60214:1998 ON-LOAD TAP-CHANGERS
    BS EN 50180:1999 BUSHINGS ABOVE 1 KV UP TO 52 KV AND FROM 250 A TO 3,15 KA FOR LIQUID FILLED TRANSFORMERS
    BS EN 62271-102 : 2002 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 102: ALTERNATING CURRENT DISCONNECTORS AND EARTHING SWITCHES
    BS 5311:1996 HIGH-VOLTAGE ALTERNATING-CURRENT CIRCUIT-BREAKERS
    VDE 0532-42 : 2001 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    BIS IS/IEC 62271-200 : 2003 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 200: A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UPTO AND INCLUDING 52 KV
    BS EN 60214-1:2014 Tap-changers Performance requirements and test methods
    BS EN 45510-2-7:2002 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    BS 4571:1978 SPECIFICATION FOR ON LOAD TAP CHANGERS
    BS EN 62199:2004 BUSHINGS FOR D.C. APPLICATION
    BS IEC 60076-15:2015 Power transformers Gas-filled power transformers
    NF EN 50243 : 2004 OUTDOOR BUSHINGS FOR 24 KV AND 36 KV AND FOR 5 KA AND 8 KA, FOR LIQUID FILLED TRANSFORMERS
    BIS IS/IEC 62271-203 : 2003 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 203: GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES ABOVE 52 KV
    BS EN 60437:1998 RADIO INTERFERENCE TEST ON HIGH-VOLTAGE INSULATORS
    BS EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL
    BS 7616:1993
    BS EN 60076-13:2006 Power transformers Self-protected liquid-filled transformers
    BS EN 61378-2:2001 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    UNE-EN 50152-2:2013 Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
    UNE-EN 62271-203:2013 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    UNE-EN 62271-104:2015 High-voltage switchgear and controlgear - Part 104: Alternating current switches for rated voltages higher than 52 kV
    IEC 62271-205:2008 High-voltage switchgear and controlgear - Part 205: Compact switchgear assemblies for rated voltages above 52 kV
    IEC 60056:1987 High-voltage alternating-current circuit-breakers
    CEI EN 50336 : 2003 BUSHINGS FOR TRANSFORMERS AND REACTOR CABLE BOXES NOT EXCEEDING 36 KV
    00/201882 DC : DRAFT APR 2000 BS EN 60298 - A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
    BS EN 62271-205:2008 High-voltage switchgear and controlgear Compact switchgear assemblies for rated voltages above 52 kV
    IEC 62199:2004 Bushings for d.c. application
    BS EN 50180-1:2015 Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers General requirements for bushings
    I.S. EN 62271-109:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES (IEC 62271-109:2008 (EQV))
    EN 50180:2010 BUSHINGS ABOVE 1 KV UP TO 52 KV AND FROM 250 A TO 3,15 KA FOR LIQUID FILLED TRANSFORMERS
    UNI CEI EN 45510-2-7 : 2011 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    I.S. EN 50152-1:2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    BS EN 62271-109 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES
    BS EN 60076-16:2011 (published 2011-11) Power transformers Transformers for wind turbines applications
    IEEE C37.017 : 2010 BUSHINGS FOR HIGH-VOLTAGE [OVER 1000 V (AC)] CIRCUIT BREAKERS AND GAS-INSULATED SWITCHGEAR
    EN 50336:2002 BUSHINGS FOR TRANSFORMERS AND REACTOR CABLE BOXES NOT EXCEEDING 36 KV
    CSA C88.1 : 1996 : R2005 POWER TRANSFORMERS AND REACTOR BUSHINGS
    CSA C88.1 : 1996 : R2015 POWER TRANSFORMERS AND REACTOR BUSHINGS
    IEC TS 60076-14:2009 Power transformers - Part 14: Design and application of liquid-immersed power transformers using high-temperature insulation materials
    UNE-EN 60214-1:2015 Tap-changers - Part 1: Performance requirements and test methods
    UNE-EN 50152-1:2013 Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 1: Circuit-breakers with nominal voltage above 1 kV
    IEEE C57.19.0:2005 STANDARD REQUIREMENTS, TERMINOLOGY, AND TEST CODE FOR BUSHINGS FOR DC APPLICATIONS
    BS EN 62271-203:2012 High-voltage switchgear and controlgear Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    EN 60076-16 : 2011 POWER TRANSFORMERS - PART 16: TRANSFORMERS FOR WIND TURBINES APPLICATIONS (IEC 60076-16:2011)
    EN 45510-2-7 : 2002 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    IEC PAS 62271-109:2002 High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
    BS EN 61788-14:2010 Superconductivity Superconducting power devices. General requirements for characteristic tests of current leads designed for powering superconducting devices
    UNE-EN 60076-1:2013 Power transformers - Part 1: General
    IEEE C57.19.00 : 2004 GENERAL REQUIREMENTS AND TEST PROCEDURE FOR POWER APPARATUS BUSHINGS
    IEEE 1861 : 2014 GUIDE FOR ON-SITE ACCEPTANCE TESTS OF ELECTRICAL EQUIPMENT AND SYSTEM COMMISSIONING OF 1000 KV AC AND ABOVE
    UNE-EN 60076-14:2014 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    BS EN 62271-211:2014 High-voltage switchgear and controlgear Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    EN 62271-100 : 2009 AMD 2/COR 18 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS (IEC 62271-100:2008/A2:2017/COR1:2018)
    EN 61378-2 : 2001 CONVERTOR TRANSFORMERS - PART 2: TRANSFORMERS FOR HVDC APPLICATIONS
    PD IEC/TS 61463:2016 Bushings. Seismic qualification
    EN 50152-2:2012 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 2: DISCONNECTORS, EARTHING SWITCHES AND SWITCHES WITH NOMINAL VOLTAGE ABOVE 1 KV
    BS EN 50243:2002 Outdoor bushings for 24 kV and 36 kV and for 5 kA and 8 kA, for liquid filled transformers
    EN 60076-6 : 2008 POWER TRANSFORMERS - PART 6: REACTORS
    IEC 60076-15:2015 Power transformers - Part 15: Gas-filled power transformers
    EN 50386:2010/A1:2013 BUSHINGS UP TO 1 KV AND FROM 250 A TO 5 KA, FOR LIQUID FILLED TRANSFORMERS
    EN 60076-13 : 2006 POWER TRANSFORMERS - PART 13: SELF-PROTECTED LIQUID-FILLED TRANSFORMERS
    EN 50180-1:2015 (edition 2) Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 1: General requirements for bushings
    IEC 60076-3-1:1987 Power transformers. Part 3: Insulation levels and dielectric tests - External clearances in air
    IEC TS 60076-23:2018 Power transformers - Part 23: DC magnetic bias suppression devices
    EN 62271-203:2012 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    EN 50152-1 : 2012 AMD 1 2013 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR ALTERNATING CURRENT SWITCHGEAR - PART 1: CIRCUIT-BREAKERS WITH NOMINAL VOLTAGE ABOVE 1 KV
    IEC/IEEE 65700-19-03:2014 Bushings for DC application
    EN 60437 : 1997 RADIO INTERFERENCE TEST ON HIGH-VOLTAGE INSULATORS
    IEC 61378-2:2001 Convertor transformers - Part 2: Transformers for HVDC applications
    IEC 62505-2:2016 Railway applications - Fixed installations - Particular requirements for AC switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV
    CLC/TS 50537-1 : 2010 RAILWAY APPLICATIONS - MOUNTED PARTS OF THE TRACTION TRANSFORMER AND COOLING SYSTEM - PART 1: HV BUSHING FOR TRACTION TRANSFORMERS
    IEC 60437:1997 Radio interference test on high-voltage insulators
    EN 60214-1:2014 TAP-CHANGERS - PART 1: PERFORMANCE REQUIREMENTS AND TEST METHODS (IEC 60214-1:2014)
    EN 60076-1:2011 POWER TRANSFORMERS - PART 1: GENERAL (IEC 60076-1:2011)
    BS EN 50336:2002 BUSHINGS FOR TRANSFORMERS AND REACTOR CABLE BOXES NOT EXCEEDING 36 KV
    BS IEC/IEEE 62271-37-013:2015 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - ALTERNATING-CURRENT GENERATOR CIRCUIT-BREAKERS
    IEC 62505-1:2016 Railway applications - Fixed installations - Particular requirements for AC switchgear - Part 1: Circuit-breakers with nominal voltage above 1 kV
    EN 60076-14 : 2013 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    EN 60076-3:2013/A1:2018 POWER TRANSFORMERS - PART 3: INSULATION LEVELS, DIELECTRIC TESTS AND EXTERNAL CLEARANCES IN AIR (IEC 60076-3:2013/A1:2018)

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

    IEC GUIDE 109:2012 Environmental aspects - Inclusion in electrotechnical product standards
    IEC 60480:2004 Guidelines for the checking and treatment of sulfur hexafluoride (SF6) taken from electrical equipment and specification for its re-use
    IEC 60038:2009 IEC standard voltages
    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    IEC 60076-7:2005 Power transformers - Part 7: Loading guide for oil-immersed power transformers
    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 60050-471:2007 International Electrotechnical Vocabulary (IEV) - Part 471: Insulators
    IEC 62217:2012 Polymeric HV insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria
    IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
    IEC TS 60815-2:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems
    IEC 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
    IEC 60076-5:2006 Power transformers - Part 5: Ability to withstand short circuit
    IEC 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    IEC 60216-2:2005 Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
    IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    IEC 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
    IEC 60050-421:1990 International Electrotechnical Vocabulary (IEV) - Part 421: Power transformers and reactors
    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
    IEC 60068-2-17:1994 Basic environmental testing procedures - Part 2-17: Tests - Test Q: Sealing
    IEC 60076-1:2011 Power transformers - Part 1: General
    IEC 62271-203:2011 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    IEC TR 60943:1998+AMD1:2008 CSV Guidance concerning the permissible temperature rise for parts of electrical equipment, in particular for terminals
    IEC GUIDE 111:2004 Electrical high-voltage equipment in high-voltage substations - Common recommendations for product standards
    IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
    IEC 62271-1:2017 High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
    IEC 60076-2:2011 Power transformers - Part 2: Temperature rise for liquid-immersed transformers
    IEC 60059:1999+AMD1:2009 CSV IEC standard current ratings
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60507:2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
    IEC TS 60815-1:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles
    IEC TS 60815-3:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 3: Polymer insulators for a.c. systems
    IEC TS 61463:2016 Bushings - Seismic qualification
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