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  • IEC 61869-1:2007

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    Instrument transformers - Part 1: General requirements

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

    Superseded date:  14-06-2023

    Language(s):  English - French, Spanish, Castilian

    Published date:  09-10-2007

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    1 Scope
    2 Normative references
    3 Terms and definitions
       3.1 General definitions
       3.2 Definitions related to dielectric ratings
       3.3 Definitions related to current ratings
       3.4 Definitions related to accuracy
       3.5 Definitions related to other ratings
       3.6 Definitions related to gas insulation
       3.7 Index of abbreviations
    4 Normal and special service conditions
       4.1 General
       4.2 Normal service conditions
       4.3 Special service conditions
       4.4 System earthing
    5 Ratings
       5.1 General
       5.2 Highest voltage for equipment
       5.3 Rated insulation levels
       5.4 Rated frequency
       5.5 Rated output
       5.6 Rated accuracy class
    6 Design and construction
       6.1 Requirements for liquids used in equipment
       6.2 Requirements for gases used in equipment
       6.3 Requirements for solid materials used in equipment
       6.4 Requirements for temperature rise of parts and
            components
       6.5 Requirements for earthing of equipment
       6.6 Requirements for the external insulation
       6.7 Mechanical requirements
       6.8 Multiple chopped impulse on primary terminals
       6.9 Internal arc fault protection requirements
       6.10 Degrees of protection by enclosures
       6.11 Electromagnetic Compatibility (EMC)
       6.12 Corrosion
       6.13 Markings
       6.14 Fire hazard
    7 Tests
       7.1 General
       7.2 Type tests
       7.3 Routine tests
       7.4 Special tests
       7.5 Sample tests
    8 Rules for transport, storage, erection, operation and
       maintenance
    9 Safety
    10 Influence of products on the natural environment
    Annex A (normative) Identification of test specimen
    Annex B (informative) Rules for transport, storage, erection,
                          operation and maintenance
    Annex C (informative) Fire hazard
    Annex D (informative) Sample test
    Bibliography

    Abstract - (Show below) - (Hide below)

    This International Standard is applicable to newly manufactured instrument transformers with analogue or digital output for use with electrical measuring instruments or electrical protective devices having rated frequencies from 15 Hz to 100 Hz. TC 38 decided to restructure the whole set of stand-alone Standards in the IEC 60044 series and transform it into a new set of standards composed of general requirements documents and specific requirements documents. This Standard is the first issue of this new series and can be regarded as a Product Family standard. It contains the general requirements for instrument transformers and shall be read in conjunction with the relevant specific requirements standard for the instrument transformer concerned.

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

    Committee TC 38
    Development Note Stability Date: 2019. (12/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By

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

    15/30314789 DC : 0 BS EN 50152-3-1 - RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-1: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - DEVICES
    EN 61000-4-30:2015/AC:2017-01 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS (IEC 61000-4-30:2015/COR1:2016)
    PREN 50152-3-1 : DRAFT 2015 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-1: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - DEVICES
    17/30355564 DC : 0 BS EN 61869-13 ED.1.0 - INSTRUMENT TRANSFORMERS - PART 13: STAND-ALONE MERGING UNIT
    CEI EN 61869-6 : 1ED 2017 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
    12/30274900 DC : 0 BS IEC 61869-9 ED 1.0 - INSTRUMENT TRANSFORMERS - PART 9: DIGITAL INTERFACE FOR INSTRUMENT TRANSFORMERS
    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
    12/30268049 DC : 0 BS EN 62689-1 - CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS
    PD IEC TS 60076-20:2017 Power transformers Energy efficiency
    UNE-EN 61000-4-30:2015 Electromagnetic compatibility (EMC) - Part 4-30: Testing and measurement techniques - Power quality measurement methods
    14/30312880 DC : 0 BS EN 61869-15 ED 1.0 - INSTRUMENT TRANSFORMERS - PART 15: SPECIFIC REQUIREMENTS FOR DC VOLTAGE TRANSFORMERS
    I.S. EN 61869-5:2011 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS (IEC 61869-5:2011)
    PD IEC/TS 60871-3:2015 Shunt capacitors for AC power systems having a rated voltage above 1 000 V Protection of shunt capacitors and shunt capacitor banks
    EN 61400-12-1:2017 Wind energy generation systems - Part 12-1: Power performance measurement of electricity producing wind turbines
    CEI EN 50152-3-3 : 2001 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
    PREN 50152-3-2 : DRAFT 2015 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 - SINGLE-PHASE CURRENT TRANSFORMERS
    IEC TS 60871-3:2015 Shunt capacitors for a.c. power systems having a rated voltage above 1000 V - Part 3: Protection of shunt capacitors and shunt capacitor banks
    I.S. EN 61000-4-30:2015 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    I.S. EN 61869-6:2016 INSTRUMENT TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW-POWER INSTRUMENT TRANSFORMERS
    NF EN 61869-3 : 2012 INSTRUMENT TRANSFORMERS - PART 3: SPECIFIC REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS
    CSA C61869-1 : 2014 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    I.S. 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 61869-4:2014/AC:2014 INSTRUMENT TRANSFORMERS - PART 4: ADDITIONAL REQUIREMENTS FOR COMBINED TRANSFORMERS (IEC 61869-4:2013)
    EN 50152-3-1:2017 Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems - Devices
    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 61869-3 : 2011 INSTRUMENT TRANSFORMERS - PART 3: ADDITIONAL REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS (IEC 61869-3:2011)
    EN 61869-6:2016 Instrument transformers - Part 6: Additional general requirements for low-power instrument transformers
    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
    BS EN 61869-5:2011 Instrument transformers Additional requirements for capacitor voltage transformers
    14/30284930 DC : 0 BS EN 62689-2 ED 1.0 - CURRENT AND VOLTAGE SENSORS OR DETECTORS TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 2: GENERAL PRINCIPLES AND REQUIREMENTS
    14/30300746 DC : 0 BS EN 60358-4 ED 1.0 - COUPLING CAPACITORS AND CAPACITOR DIVIDERS - PART 4: AC AND DC SINGLE-PHASE CAPACITOR-DIVIDER AND RC-DIVIDER
    07/30167174 DC : 0 BS EN 61869-2 - INSTRUMENT TRANSFORMERS - PART 2: SPECIFIC REQUIREMENT FOR CURRENT TRANSFORMERS
    BS EN 61869-2:2012 Instrument transformers Additional requirements for current transformers
    BS EN 61869-4:2014 Instrument transformers Additional requirements for combined transformers
    BS PD IEC TS 60076-19 : 2013 POWER TRANSFORMERS - PART 19: RULES FOR THE DETERMINATION OF UNCERTAINTIES IN THE MEASUREMENT OF THE LOSSES ON POWER TRANSFORMERS AND REACTORS
    IEC TR 62543:2011+AMD1:2013 CSV High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC)
    CEI EN 61869-4 : 2014 INSTRUMENT TRANSFORMERS - PART 4: ADDITIONAL REQUIREMENTS FOR COMBINED TRANSFORMERS
    CEI EN 61869-2 : 2014 INSTRUMENT TRANSFORMERS - PART 2: ADDITIONAL REQUIREMENTS FOR CURRENT TRANSFORMERS
    NF EN 61400-12-1:2017 WIND ENERGY GENERATION SYSTEMS - PART 12-1: POWER PERFORMANCE MEASUREMENTS OF ELECTRICITY PRODUCING WIND TURBINES
    IEC 62689-1:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements
    DIN IEC/TR 62543 : 2018 HIGH-VOLTAGE DIRECT CURRENT (HVDC) POWER TRANSMISSION USING VOLTAGE SOURCED CONVERTERS (VSC) (IEC/TR 62543:2011 + A1:2013 + A2:2017)
    VDE 0553-543 : 2018 HIGH-VOLTAGE DIRECT CURRENT (HVDC) POWER TRANSMISSION USING VOLTAGE SOURCED CONVERTERS (VSC) (IEC/TR 62543:2011 + A1:2013 + A2:2017)
    12/30267268 DC : 0 BS EN 61869-9 ED 1.0 - INSTRUMENT TRANSFORMERS - PART 9: DIGITAL INTERFACE FOR INSTRUMENT TRANSFORMERS
    BS EN 62689-1:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes General principles and requirements
    BS EN 61869-3:2011 Instrument transformers Additional requirements for inductive voltage transformers
    I.S. EN 61869-2:2012 INSTRUMENT TRANSFORMERS - PART 2: ADDITIONAL REQUIREMENTS FOR CURRENT TRANSFORMERS (IEC 61869-2:2012 (EQV))
    BS EN 62689-2:2017 Current and voltage sensors or detectors, to be used for fault passage indication purposes System aspects
    BS PD IEC TR 62543 : 2011 HIGH-VOLTAGE DIRECT CURRENT (HVDC) POWER TRANSMISSION USING VOLTAGE SOURCED CONVERTERS (VSC)
    CAN/CSA-IEC 61400-12-1:17 Wind energy generation systems — Part 12-1: Power performance measurements of electricity producing wind turbines (Adopted IEC 61400-12-1:2017, second edition, 2017-03) | Systèmes de génération d’énergie éolienne — Partie 12-1 : Mesures de performance de puissance des éoliennes de production d’électricité (norme IEC 61400-12-1:2017 adoptée, deuxième édition, 2017-03)
    I.S. EN 60076-19:2015 POWER TRANSFORMERS - PART 19: RULES FOR THE DETERMINATION OF UNCERTAINTIES IN THE MEASUREMENT OF THE LOSSES ON POWER TRANSFORMERS AND REACTORS
    I.S. 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 - SINGLE-PHASE CURRENT TRANSFORMERS
    I.S. EN 61400-12-1:2017 WIND POWER GENERATION SYSTEMS - PART 12-1: POWER PERFORMANCE MEASUREMENT OF ELECTRICITY PRODUCING WIND TURBINES
    IEC 62689-2:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 2: System aspects
    UNE-EN 60076-19:2016 Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    IEC 61892-3:2012 Mobile and fixed offshore units - Electrical installations - Part 3: Equipment
    IEC 61400-12-1:2017 Wind energy generation systems - Part 12-1: Power performance measurements of electricity producing wind turbines
    IEC 61400-12-1 REDLINE : 2ED 2017 WIND ENERGY GENERATION SYSTEMS - PART 12-1: POWER PERFORMANCE MEASUREMENTS OF ELECTRICITY PRODUCING WIND TURBINES
    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
    IEC 61869-3:2011 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
    UNE-EN 50152-3-1:2017 Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems - Devices
    UNE-EN 61869-5:2012 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
    15/30314792 DC : 0 BS EN 50152-3-2 - 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 - SINGLE-PHASE CURRENT TRANSFORMERS
    NF EN 61869-5 : 2012 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS
    NF EN 61869-2 : 2013 INSTRUMENT TRANSFORMERS - PART 2: ADDITIONAL REQUIREMENTS FOR CURRENT TRANSFORMERS
    13/30267601 DC : 0 BS EN 61869-6 - INSTRUMENTS TRANSFORMERS - PART 6: ADDITIONAL GENERAL REQUIREMENTS FOR LOW POWER INSTRUMENT TRANSFORMERS
    CEI EN 61869-3 : 2012 INSTRUMENT TRANSFORMERS - PART 3: ADDITIONAL REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS
    EN 62689-1:2016 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 1: General principles and requirements
    UNE-EN 61869-4:2017 Instrument transformers - Part 4: Additional requirements for combined transformers
    I.S. EN 61869-3:2011 INSTRUMENT TRANSFORMERS - PART 3: ADDITIONAL REQUIREMENTS FOR INDUCTIVE VOLTAGE TRANSFORMERS (IEC 61869-3:2011)
    CEI EN 50152-3-2 : 2001 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 61869-3:2012 Instrument transformers - Part 3: Additional requirements for inductive voltage transformers
    CEI EN 61400-12-1 : 2007 WIND POWER GENERATION SYSTEMS - PART 12-1: POWER PERFORMANCE MEASUREMENT OF ELECTRICITY PRODUCING WIND TURBINES
    PD IEC/TR 61869-100:2017 Instrument transformers Guidance for application of current transformers in power system protection
    I.S. EN 50152-3-1:2017 RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-1: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - DEVICES
    I.S. EN 62689-2:2017 CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 2: SYSTEM ASPECTS
    I.S. EN 61869-4:2014 INSTRUMENT TRANSFORMERS - PART 4: ADDITIONAL REQUIREMENTS FOR COMBINED TRANSFORMERS
    I.S. EN 62689-1:2016 CURRENT AND VOLTAGE SENSORS OR DETECTORS, TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: GENERAL PRINCIPLES AND REQUIREMENTS
    IEC TS 60076-19:2013 Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    IEC TR 61869-100:2017 Instrument transformers - Part 100: Guidance for application of current transformers in power system protection
    IEC 61000-4-30 : 3.0EN+(REDLINE+VERSION) ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-30: TESTING AND MEASUREMENT TECHNIQUES - POWER QUALITY MEASUREMENT METHODS
    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
    IEC 61869-2:2012 Instrument transformers - Part 2: Additional requirements for current transformers
    IEC 61869-5:2011 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
    IEC 61000-4-30:2015 RLV Electromagnetic compatibility (EMC) - Part 4-30: Testing and measurement techniques - Power quality measurement methods
    BS EN 61869-6:2016 Instrument transformers Additional general requirements for low-power instrument transformers
    14/30312868 DC : 0 BS EN 61869-14 ED 1.0 - INSTRUMENT TRANSFORMERS - PART 14: SPECIFIC REQUIREMENTS FOR DC CURRENT TRANSFORMERS
    EN 62689-2:2017 Current and voltage sensors or detectors, to be used for fault passage indication purposes - Part 2: System aspects
    BS EN 60076-19:2015 Power transformers Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    BS EN 61000-4-30:2015 Electromagnetic compatibility (EMC) Testing and measurement techniques. Power quality measurement methods
    UNE-EN 61869-2:2013 Instrument transformers - Part 2: Additional requirements for current transformers
    14/30300261 DC : 0 BS EN 62689-1 ED 1.0 - CURRENT AND VOLTAGE SENSORS OR DETECTORS TO BE USED FOR FAULT PASSAGE INDICATION PURPOSES - PART 1: SYSTEM ASPECTS
    BS IEC 61892-3:2012 Mobile and fixed offshore units. Electrical installations Equipment
    CEI EN 61869-5 : 2012 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS
    BS EN 50152-3-1:2017 Railway applications. Fixed installations. Particular requirements for a.c. switchgear Measurement, control and protection devices for specific use in a.c. traction systems. Devices
    NF EN 61869-4 : 2014 INSTRUMENT TRANSFORMERS - PART 4: ADDITIONAL REQUIREMENTS FOR COMBINED TRANSFORMERS
    IEC 62888-2:2018 Railway applications - Energy measurement on board trains - Part 2: Energy measurement
    IEC 61869-6:2016 Instrument transformers - Part 6: Additional general requirements for low-power instrument transformers
    IEC 61400-12-1:2017 RLV Wind energy generation systems - Part 12-1: Power performance measurements of electricity producing wind turbines
    EN 60076-19:2015 Power transformers - Part 19: Rules for the determination of uncertainties in the measurement of the losses on power transformers and reactors
    EN 61869-2 : 2012 INSTRUMENT TRANSFORMERS - PART 2: ADDITIONAL REQUIREMENTS FOR CURRENT TRANSFORMERS
    EN 61869-5:2011 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
    CEI 18-58 : 2013 MOBILE AND FIXED OFFSHORE UNITS - ELECTRICAL INSTALLATIONS - PART 3: EQUIPMENT

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    IEC 62271-100:2008+AMD1:2012+AMD2:2017 CSV High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
    IEC 60255-22-1:2007 Measuring relays and protection equipment - Part 22-1: Electrical disturbance tests - 1 MHz burst immunity tests
    IEC 60038:2009 IEC standard voltages
    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    IEC 60565:2006 Underwater acoustics - Hydrophones - Calibration in the frequency range 0,01 Hz to 1 MHz
    IEC 60028:1925 International standard of resistance for copper
    AS 61869.2:2021 Instrument transformers Additional requirements for current transformers (IEC 61869-2:2012 (ED 1.0) MOD)
    AS 61869.4:2021 Instrument transformers Additional requirements for combined transformers (IEC 61869-4:2013 (ED.1.0) MOD)
    IEC 60695-1-30:2017 Fire hazard testing - Part 1-30: Guidance for assessing the fire hazard of electrotechnical products - Preselection testing process - General guidelines
    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 60695-1-1:1999 Fire hazard testing - Part 1-1: Guidance for assessing the fire hazard of electrotechnical products - General guidelines
    IEC 61161:2013 Ultrasonics - Power measurement - Radiation force balances and performance requirements
    CISPR 16-1-1:2015 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus
    IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
    IEC 60068-2-11:1981 Basic environmental testing procedures - Part 2-11: Tests - Test Ka: Salt mist
    IEC 61109:2008 Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
    IEC 60660:1999 Insulators - Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 000 V up to but not including 300 kV
    IEC 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
    IEC 60694:1996+AMD1:2000+AMD2:2001 CSV Common specifications for high-voltage switchgear and controlgear standards
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    AS 61869.5:2021 Instrument transformers Additional requirements for capacitor voltage transformers (IEC 61869-5:2011 (ED 1.0) MOD)
    IEC 60121:1960 Recommendation for commercial annealed aluminium electrical conductor wire
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    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 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 62262:2002 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)
    AS 61869.3:2021 Instrument transformers Additional requirements for inductive voltage transformers (IEC 61869-3:2011 (ED.1.0) MOD)
    IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
    ISO 9001:2015 Quality management systems — Requirements
    IEC 60695-7-1:2010 Fire hazard testing - Part 7-1: Toxicity of fire effluent - General guidance
    IEC 60071-2:1996 Insulation co-ordination - Part 2: Application guide
    IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
    IEC 60068-2-75:2014 Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests
    IEC 61181:2007+AMD1:2012 CSV Mineral oil-filled electrical equipment - Application of dissolved gas analysis (DGA) to factory tests on electrical equipment
    CISPR 11:2015 RLV Industrial, scientific and medical equipment - Radio-frequency disturbance characteristics - Limits and methods of measurement
    IEC 60068-2-1:2007 Environmental testing - Part 2-1: Tests - Test A: Cold
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
    IEC 62271-2:2003 High-voltage switchgear and controlgear - Part 2: Seismic qualification for rated voltages of 72,5 kV and above
    ISO 3231:1993 Paints and varnishes — Determination of resistance to humid atmospheres containing sulfur dioxide
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