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  • IEC 60505:2011

    Current The latest, up-to-date edition.

    Evaluation and qualification of electrical insulation systems

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

    Language(s): 

    Published date:  11-07-2011

    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 Ageing
    5 Basic evaluation considerations
    6 Functional ageing tests
    Annex A (informative) - Glossary
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60505:2011 establishes the basis for estimating the ageing of electrical insulation systems (EIS) under conditions of either electrical, thermal, mechanical, environmental stresses or combinations of these (multifactor stresses). It specifies the principles and procedures that shall be followed, during the development of EIS functional test and evaluation procedures, to establish the estimated service life for a specific EIS. This standard should be used by all IEC technical committees responsible for equipment having an EIS. The contents of the corrigendum of March 2017 have been included in this copy.

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

    Committee TC 112
    Development Note Supersedes IEC 60610. (01/2003) Supersedes IEC 60791, IEC 60792-1, IEC TR 60941, IEC 61356 and IEC 61359. (10/2004) Stability Date: 2020. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

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

    02/209876 DC : DRAFT NOV 2002 IEC 62332 TS ED.1 - ELECTRICAL INSULATION SYSTEMS (EIS) - THERMAL EVALUATION OF COMBINED LIQUID AND SOLID COMPONENTS
    CLC/TR 60919-2 : 2010 PERFORMANCE OF HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS WITH LINE-COMMUTATED CONVERTERS - PART 2: FAULTS AND SWITCHING
    CEI EN 60076-14 : 2014 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    DIN IEC 60085 : 1993 THERMAL EVALUATION AND CLASSIFICATION OF ELECTRICAL INSULATION
    08/30177750 DC : DRAFT FEB 2008 BS EN 61857-1 - ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
    I.S. EN 62068:2013 ELECTRICAL INSULATING MATERIALS AND SYSTEMS - GENERAL METHOD OF EVALUATION OF ELECTRICAL ENDURANCE UNDER REPETITIVE VOLTAGE IMPULSES (IEC 62068:2013 (EQV))
    12/30263868 DC : 0 BS EN 60076-14 - POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    I.S. EN 60085:2008 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    BS EN 60034-18-1:2010 Rotating electrical machines Functional evaluation of insulation systems. General guidelines
    04/30124993 DC : DRAFT NOV 2004 IEC 61244-3 - LONG-TERM RADIATION AGEING IN POLYMERS - PART 3: PROCEDURES FOR IN-SERVICE MONITORING OF LOW-VOLTAGE CABLE MATERIALS
    NF EN 61857-21 : 2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
    CSA C71.2 : 1998 INSULATION COORDINATION - PART 2: APPLICATION GUIDE
    IEC TS 62332-2:2014 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 2: Simplified test
    BS EN 60310:2016 Railway applications. Traction transformers and inductors on board rolling stock
    CEI EN 60034-18-21 : 2014 ROTATING ELECTRICAL MACHINES - PART 18-21: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR WIRE-WOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION
    CEI EN 61857-1 : 2010 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
    I.S. EN 60034-18-31:2012 ROTATING ELECTRICAL MACHINES - PART 18-31: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR FORM-WOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION OF INSULATION SYSTEMS USED IN ROTATING MACHINES (IEC 60034-18-31:2012 (EQV))
    I.S. EN 61858:2008 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    BS PD IEC TR 60919-2 : 2008 PERFORMANCE OF HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS WITH LINE-COMMUTATED CONVERTERS - PART 2: FAULTS AND SWITCHING
    I.S. EN 61857-21:2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
    I.S. EN 60137:2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    BS EN 62114:2001 Electrical insulation systems (EIS). Thermal classification
    I.S. EN 60034-18-21:2013 ROTATING ELECTRICAL MACHINES - - PART 18-21: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR WIREWOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION (IEC 60034-18-21:2012 (EQV))
    I.S. EN 60071-5:2015 INSULATION CO-ORDINATION - PART 5: PROCEDURES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) CONVERTER STATIONS
    I.S. EN 60076-14:2013 POWER TRANSFORMERS - PART 14: LIQUIDIMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS (IEC 60076-14:2013 (EQV))
    IEC TS 60034-18-33:2010 Rotating electrical machines - Part 18-33: Functional evaluation of insulation systems - Test procedures for form-wound windings - Multifactor evaluation by endurance under simultaneous thermal and electrical stresses
    EN 60137:2017 Insulated bushings for alternating voltages above 1 000 V
    EN 60071-5:2015 Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations
    EN 60085:2008 Electrical insulation - Thermal evaluation and designation
    EN 61858-2:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 2: Form-wound EIS
    EN 60034-18-31 : 2012 ROTATING ELECTRICAL MACHINES - PART 18-31: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR FORM-WOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION OF INSULATION SYSTEMS USED IN ROTATING MACHINES (IEC 60034-18-31:2012)
    EN 60034-18-1:2010 Rotating electrical machines - Part 18-1: Functional evaluation of insulation systems - General guidelines
    04/30111589 DC : 0
    03/307567 DC : DRAFT JUNE 2003 IEC 61858 ED.2.0 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    EN 60071-2:1997 Insulation co-ordination - Part 2: Application guide
    BS EN 62631-1:2011 Dielectric and resistive properties of solid insulating materials General
    BS EN 50588-1:2017 Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV General requirements
    BS EN 60034-18-21:2013 Rotating electrical machines Functional evaluation of insulation systems. Test procedures for wire-wound windings. Thermal evaluation and classification
    CEI EN 62631-1 : 2012 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL
    BS EN 60076-14:2013 Power transformers Liquid-immersed power transformers using high-temperature insulation materials
    12/30273912 DC : 0 BS EN 61858-2 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED EIS - PART-2: FORM-WOUND EIS
    BS EN 62068-1:2003 Electrical insulation systems. Electrical stresses produced by repetitive impulses General method of evaluation of electrical endurance
    BS EN 60085:2008 Electrical insulation. Thermal evaluation and designation
    DD CLC/TS 60034-18-33:2011 Rotating electrical machines Functional evaluation of insulation systems. Test procedures for form-wound windings. Multifactor evaluation by endurance under simultaneous thermal and electrical stresses
    CLC/TS 60034-18-33:2011 Rotating electrical machines - Part 18-33: Functional evaluation of insulation systems - Test procedures for form-wound windings - Multifactor evaluation by endurance under simultaneous thermal and electrical stresses
    UNE-EN 60076-14:2014 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    09/30204161 DC : DRAFT MAY 2009 BS EN 62631-1 - GUIDELINES FOR THE DETERMINATION OF DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL CONSIDERATIONS
    BS EN 61857-1:2009 Electrical insulation systems. Procedures for thermal evaluation General requirements. Low-voltage
    CEI EN 61857-21 : 2012 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
    IEC TR 62392:2006 Suitability of typical electrical insulating material (EIM) for polymer recycling
    BIS IS/IEC 60071-2 : 1996(R2017) INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE
    IEC 61857-21:2009 Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
    EN IEC 62631-2-1:2018 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical frequencies (0,1 Hz to 10 MHz) - AC Methods
    BS EN 60137:2017 Insulated bushings for alternating voltages above 1000 V
    CEI EN 60034-18-1 : 2011 ROTATING ELECTRICAL MACHINES - PART 18-1: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - GENERAL GUIDELINES
    BS EN 61857-21:2009 Electrical insulation systems. Procedures for thermal evaluation Specific requirements for general-purpose models. Wire-wound applications
    I.S. EN 60310:2016 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    I.S. EN 61858-2:2014 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 2: FORM-WOUND EIS
    IEC TS 62332-1:2011 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements
    IEC 60137 REDLINE : 7ED 2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    IEEE DRAFT 434 : D10 2006 FUNCTIONAL EVALUATION OF INSULATION SYSTEMS FOR AC ELECTRIC MACHINES RATED 2300 V AND ABOVE
    IEC 62114:2001 Electrical Insulation Systems - Thermal classification
    I.S. EN 61857-1:2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
    I.S. EN 60077-1:2017 RAILWAY APPLICATIONS - ELECTRIC EQUIPMENT FOR ROLLING STOCK - PART 1: GENERAL SERVICE CONDITIONS AND GENERAL RULES
    IEC TS 62332-3:2016 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 3: Hermetic motor-compressors
    IEC TS 60076-14:2009 Power transformers - Part 14: Design and application of liquid-immersed power transformers using high-temperature insulation materials
    IEC 60137:2017 RLV Insulated bushings for alternating voltages above 1000 V
    IEC 60071-2:2018 RLV Insulation co-ordination - Part 2: Application guidelines
    BS 5691-1:1995 Guide for the determination of thermal endurance properties of electrical insulating materials General guidelines for ageing procedures and evaluation of test results
    06/30146693 DC : DRAFT FEB 2006
    CEI EN 62068 : 2014 ELECTRICAL INSULATING MATERIALS AND SYSTEMS - GENERAL METHOD OF EVALUATION OF ELECTRICAL ENDURANCE UNDER REPETITIVE VOLTAGE IMPULSES
    08/30176387 DC : DRAFT JAN 2008 BS EN 60034-18-21 - ROTATING ELECTRICAL MACHINES - PART 18-21: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR WIRE-WOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION
    IEEE 434-2006 IEEE Guide for Functional Evaluation of Insulation Systems for AC Electric Machines Rated 2300 V and Above
    NF EN 61858 : 2009 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    EN 62114:2001 Electrical insulation systems (EIS) - Thermal classification
    BS EN 61857-31:2017 Electrical insulation systems. Procedures for thermal evaluation Applications with a designed life of 5 000 h or less
    12/30273916 DC : 0 BS EN 61858-1 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED EIS - PART-1: WIRE-WOUND WINDING EIS
    BS EN 62068:2013 Electrical insulating materials and systems. General method of evaluation of electrical endurance under repetitive voltage impulses
    BS EN 60034-18-31:2012 Rotating electrical machines Functional evaluation of insulation systems. Test procedures for form-wound windings. Thermal evaluation and classification of insulation systems used in rotating machines
    08/30177151 DC : DRAFT JAN 2008 BS EN 61858 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    NF EN 60085 : 2008 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    UNE-EN 60137:2011 Insulated bushings for alternating voltages above 1 000 V
    CEI EN 61857-31 : 1ED 2017 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS
    BS EN 61858-1:2014 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS) Wire-wound winding EIS
    DD IEC/TS 62332-1:2011 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components General requirements
    I.S. EN 50588-1:2017 MEDIUM POWER TRANSFORMERS 50 HZ, WITH HIGHEST VOLTAGE FOR EQUIPMENT NOT EXCEEDING 36 KV - PART 1: GENERAL REQUIREMENTS
    14/30271248 DC : 0 BS EN 60310 ED 4.0 - RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK
    BS EN 61858:2008 Electrical insulation systems. Thermal evaluation of modifications to an established wire-wound EIS
    03/306455 DC : DRAFT APR 2003 IEC 61857-1 ED.2.0 - ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
    11/30252173 DC : 0 BS EN 60071-5 - INSULATION CO-ORDINATION - PART 5: PROCEDURES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) CONVERTER STATIONS
    UNE-EN 60071-5:2015 Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations
    EN IEC 60071-2:2018 Insulation co-ordination - Part 2: Application guidelines
    IEC TR 61857-2:2015 Electrical insulation systems - Procedures for thermal evaluation - Part 2: Selection of the appropriate test method for evaluation and classification of electrical insulation systems
    CEI EN 60085 : 2009 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    EN 50588-1:2017 Medium power transformers 50 Hz, with highest voltage for equipment not exceeding 36 kV - Part 1: General requirements
    I.S. EN IEC 60071-2:2018 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDELINES
    I.S. EN IEC 62631-2-1:2018 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 2-1: RELATIVE PERMITTIVITY AND DISSIPATION FACTOR - TECHNICAL FREQUENCIES (0,1 HZ TO 10 MHZ) - AC METHODS
    CEI EN 60034-18-31 : 2013 ROTATING ELECTRICAL MACHINES - PART 18-31: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR FORM-WOUND WINDINGS - THERMAL EVALUATION AND CLASSIFICATION OF INSULATION SYSTEMS USED IN ROTATING MACHINES
    IEC 62068-1:2003 Electrical insulation systems - Electrical stresses produced by repetitive impulses - Part 1: General method of evaluation of electrical endurance
    IEC TS 60071-5:2002 Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations
    IEC 62631-2-1:2018 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical Frequencies (0,1 Hz - 10 MHz) - AC Methods
    IEC 60071-2 REDLINE : 4ED 2018 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDELINES
    DIN VDE 0302-4 : 1988 INSULATION SYSTEMS OF ELECTRICAL EQUIPMENT; ELECTRICAL ENDURANCE; GENERAL CONSIDERATIONS, EVALUATION PROCEDURES
    08/30177754 DC : DRAFT FEB 2008 BS EN 61857-21 - ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL PURPOSE MODELS - WIRE-WOUND APPLICATIONS
    BS EN 60071-5:2015 Insulation co-ordination Procedures for high-voltage direct current (HVDC) converter stations
    PD IEC/TS 62332-3:2016 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Hermetic motor-compressors
    12/30239867 DC : 0 BS EN 62368-1 - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    DIN VDE 0302-5 : 1988 INSULATION SYSTEMS OF ELECTRICAL EQUIPMENT; PERFORMANCE EVALUATION
    05/30125041 DC : DRAFT JAN 2005 ISO 19973-1 - PNEUMATIC FLUID POWER - DETERMINATION OF RELIABILITY BY TESTING - PART 1: GENERAL PRODUCTION CALCULATION METHOD
    S.R. CLC/TR 60919-2:2010 PERFORMANCE OF HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS WITH LINE-COMMUTATED CONVERTERS - PART 2: FAULTS AND SWITCHING
    PD IEC/TR 61857-2:2015 Electrical insulation systems. Procedures for thermal evaluation Selection of the appropriate test method for evaluation and classification of electrical insulation systems
    BS EN 61858-2:2014 Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS) Form-wound EIS
    DIN VDE 0302-7 : 1989 INSULATION SYSTEMS OF ELECTRICAL EQUIPMENT; MECHANICAL ENDURANCE FUNCTIONAL TESTS FOR ELECTRICAL INSULATION SYSTEMS
    12/30258453 DC : 0 BS EN 62368-1 AMD - AUDIO/VIDEO, INFORMATION AND COMMUNICATION TECHNOLOGY EQUIPMENT - PART 1: SAFETY REQUIREMENTS
    PD IEC/TS 62332-2:2014 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Simplified test
    16/30318517 DC : 0 BS EN 60137 ED. 7.0 - INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    I.S. EN 61857-31:2017 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS
    IEC 60077-1 REDLINE : 2ED 2017 RAILWAY APPLICATIONS - ELECTRIC EQUIPMENT FOR ROLLING STOCK - PART 1: GENERAL SERVICE CONDITIONS AND GENERAL RULES
    DIN EN 60071-2 : 1997 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE
    I.S. EN 62068-1:2003 ELECTRICAL INSULATION SYSTEMS - ELECTRICAL STRESSES PRODUCED BY REPETITIVE IMPULSES - PART 1: GENERAL METHOD OF EVALUATION OF ELECTRICAL ENDURANCE
    I.S. EN 61858-1:2014 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 1: WIRE-WOUND WINDING EIS
    S.R. CLC/TS 60034-18-33:2011 ROTATING ELECTRICAL MACHINES - PART 18-33: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR FORM-WOUND WINDINGS - MULTIFACTOR EVALUATION BY ENDURANCE UNDER SIMULTANEOUS THERMAL AND ELECTRICAL STRESSES
    NF EN 62114 : 2002 ELECTRICAL INSULATION SYSTEMS (EIS) - THERMAL CLASSIFICATION
    UNE-EN 60034-18-31:2013 Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
    I.S. EN 60034-18-1:2010 ROTATING ELECTRICAL MACHINES - PART 18-1: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - GENERAL GUIDELINES
    IEC TS 61244-3:2005 Long-term radiation ageing in polymers - Part 3: Procedures for in-service monitoring of low-voltage cable materials
    16/30296081 DC : 0 BS EN 60077-1 ED. 2.0 - RAILWAY APPLICATIONS - ELECTRIC EQUIPMENT FOR ROLLING STOCK - PART 1: GENERAL SERVICE CONDITIONS AND GENERAL RULES
    IEC 62068:2013 Electrical insulating materials and systems - General method of evaluation of electrical endurance under repetitive voltage impulses
    IEC 61857-1:2008 Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage
    IEC 62631-1:2011 Dielectric and resistive properties of solid insulating materials - Part 1: General
    IEC 61857-31:2017 Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less
    IEC 61858-1:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS
    IEC 61858-2:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 2: Form-wound EIS
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    IEC 60034-18-21:2012 Rotating electrical machines - Part 18-21: Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
    IEC 60034-18-31:2012 Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
    IEC 60310:2016 Railway applications - Traction transformers and inductors on board rolling stock
    BS EN 60077-1:2017 Railway applications. Electric equipment for rolling stock General service conditions and general rules
    IEC 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    DD IEC TS 60076-14 : DRAFT 2009 POWER TRANSFORMERS - PART 14: DESIGN AND APPLICATION OF LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
    BS 7816-3:1998 Determination of long-term radiation ageing in polymers Procedures for in-service monitoring of low-voltage cable materials
    11/30258048 DC : 0 BS EN 62068 - ELECTRICAL INSULATING MATERIALS AND SYSTEMS - GENERAL METHOD OF EVALUATION OF ELECTRICAL ENDURANCE UNDER REPETITIVE VOLTAGE IMPULSES
    08/30176383 DC : DRAFT JAN 2008 BS EN 60034-18-1 - ROTATING ELECTRICAL MACHINES - PART 18-1: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - GENERAL GUIDELINES
    15/30323694 DC : 0 BS EN 62631-2-1 - DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 2-1: RELATIVE PERMITTIVITY AND DISSIPATION FACTOR - TECHNICAL FREQUENCIES (0.1 HZ - 10 MHZ), AC METHODS
    CEI CLC/TR 60919-2 : 2013 PERFORMANCE OF HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS WITH LINE-COMMUTATED CONVERTERS - PART 2: FAULTS AND SWITCHING
    NF EN 60034 18-1 : 2010 ROTATING ELECTRICAL MACHINES - PART 18-1: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - GENERAL GUIDELINES
    BS IEC 61858-2 : 2014 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 2: FORM-WOUND EIS
    IEC TR 60919-2:2008+AMD1:2015 CSV Performance of high-voltage direct current (HVDC) systems withline-commutated converters - Part 2: Faults and switching
    DIN VDE 0302-6 : 1988 INSULATION SYSTEMS OF ELECTRICAL EQUIPMENT; MULTI-FACTOR FUNCTIONAL TESTING; TEST PROCEDURES
    IEC 60137:2017 Insulated bushings for alternating voltages above 1000 V
    16/30333476 DC : 0 BS EN 61857-31 - ELECTRICAL INSULATION SYSTEMS-PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE LESS THAN 5000 HOURS
    09/30194359 DC : 0 BS EN 60034-18-34 - ROTATING ELECTRICAL MACHINES - PART 18-34: FUNCTIONAL EVALUATION OF INSULATION SYSTEMS - TEST PROCEDURES FOR FORM-WOUND WINDINGS - EVALUATION OF THERMOMECHANICAL ENDURANCE OF INSULATION SYSTEMS
    VDE 0111-2 : 1997 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE
    CEI EN 60071-2 : 1998 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE
    UNE-EN 62631-1:2012 Dielectric and resistive properties of solid insulating materials - Part 1: General
    IEEE 1434-2014 IEEE Guide for the Measurement of Partial Discharges in AC Electric Machinery
    IEEE 99-2007 REDLINE IEEE Recommended Practice for the Preparation of Test Procedures for the Thermal Evaluation of Insulation Systems for Electrical Equipment
    IEC 60071-2:2018 Insulation co-ordination - Part 2: Application guidelines
    CEI EN 60137 : 2009 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    I.S. EN 62631-1:2011 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL
    NF EN 61857-1 : 2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
    BS EN 60071-2:1997 Insulation co-ordination Application guide
    IEC 60077-1:2017 Railway applications - Electric equipment for rolling stock - Part 1: General service conditions and general rules
    IEC 60071-5:2014 Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations
    IEC 61858:2008 Electrical insulation systems - Thermal evaluation of modifications to an established wire-wound EIS
    03/314451 DC : DRAFT SEP 2003 IEC 62392 TR ED.1 - SUITABILITY OF TYPICAL ELECTRICAL INSULATING MATERIAL FOR POLYMER RECYCLING
    IEC 60034-18-1:2010 Rotating electrical machines - Part 18-1: Functional evaluation of insulation systems - General guidelines
    EN 60077-1:2017 Railway applications - Electric equipment for rolling stock - Part 1: General service conditions and general rules
    EN 61858-1:2014 Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS
    EN 62068-1:2003 Electrical insulation systems - Electrical stresses produced by repetitive impulses - Part 1: General method of evaluation of electrical endurance
    EN 61857-21:2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
    IEC 60077-1:2017 RLV Railway applications - Electric equipment for rolling stock - Part 1: General service conditions and general rules
    EN 62068:2013 Electrical insulating materials and systems - General method of evaluation of electrical endurance under repetitive voltage impulses
    EN 61857-31:2017 Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less
    EN 61858:2008 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS
    EN 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
    EN 60034-18-21:2013 Rotating electrical machines - Part 18-21: Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
    EN 61857-1:2009 Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage
    EN 62631-1 : 2011 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL (IEC 62631-1:2011)
    EN 60310:2016/AC:2018-03 RAILWAY APPLICATIONS - TRACTION TRANSFORMERS AND INDUCTORS ON BOARD ROLLING STOCK (IEC 60310:2016/COR1:2018)

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    IEC 60216-3:2006 Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
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