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  • IEC 60480:2004

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Guidelines for the checking and treatment of sulfur hexafluoride (SF6) taken from electrical equipment and specification for its re-use

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

    Superseded date:  25-11-2021

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

    Published date:  14-10-2004

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    Concerns the re-use of sulfur hexafluoride (SF6) after removal from electrical equipment (for maintenance, or at the end of life). This standard recommends procedures for reclaiming used SF6 and for restoring its quality to an acceptable level, which would allow the filling of new or existing electrical equipment. This standard provides guidance to operational and maintenance personnel for the testing and safe handling of used SF6 . The main changes with respect to the previous edition are listed below:
    - updating of standard as it relates to environmental issues, storage and analytical methods;
    - addition of specification for the re-use of gas;
    - inclusion of a regeneration process for sulfur hexafluoride taken from electrical equipment.

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

    Committee TC 10
    Development Note Stability Date: 2017. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Superseded
    Superseded By
    Supersedes

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

    17/30294899 DC : 0 BS EN 60376 ED3.0 - SPECIFICATION OF TECHNICAL GRADE SULFUR HEXAFLUORIDE (SF[6]) AND COMPLEMENTARY GASES TO BE USED IN ITS MIXTURES FOR USE IN ELECTRICAL EQUIPMENT
    BS IEC 60076-15:2015 Power transformers Gas-filled power transformers
    IEEE C37.122.4-2016 IEEE Guide for Application and User Guide for Gas-Insulated Transmission Lines, Rated 72.5 kV and Above
    I.S. EN 62271-100:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS
    EN IEC/IEEE 65700 : 2018 BUSHINGS FOR DC APPLICATION (IEC/IEEE 65700-19-03:2014)
    CEI EN 60376 : 2006 SPECIFICATION OF TECHNICAL GRADE SULFUR HEXAFLUORIDE (SF[6]) FOR USE IN ELECTRICAL EQUIPMENT
    97/208495 DC : DRAFT JUL 1997 IEC 61640 - HV GAS-INSULATED TRANSMISSION LINES FOR RATED VOLTAGES OF 72,5 KV AND ABOVE
    BS IEC/IEEE 62271-37-013:2015 High-voltage switchgear and controlgear Alternating-current generator circuit-breakers
    BS IEC/IEEE 65700-19-03 : 2014 BUSHINGS FOR DC APPLICATION
    CEI EN 62271-204 : 2012 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 204: RIGID GAS-INSULATED TRANSMISSION LINES FOR RATED VOLTAGES ABOVE 52 KV
    14/30257408 DC : 0 BS IEC/IEEE 62271-37-013 ED 1.0 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 37-013: ALTERNATING-CURRENT GENERATOR CIRCUIT-BREAKERS
    C22.2 NO. 31-18 Switchgear assemblies
    BS EN 62271-203:2012 High-voltage switchgear and controlgear Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    DIN EN 45510-2-7:2003-12 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    BIS IS 13072 : 2013 SPECIFICATION OF TECHNICAL GRADE SULFUR HEXAFLUORIDE (SF[6]) FOR USE IN ELECTRICAL EQUIPMENT
    I.S. EN 60044-8:2002 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    CSA C60044-8 : 2007 : R2016 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    BS EN 60517:1997 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
    I.S. EN 60694:1999 COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
    EN 62271-1:2017 High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
    IEC PAS 62271-109:2002 High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
    IEC 60137 REDLINE : 7ED 2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    EN 60137:2017 Insulated bushings for alternating voltages above 1 000 V
    UNE-EN 62271-203:2013 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    IEC 60694:1996+AMD1:2000+AMD2:2001 CSV Common specifications for high-voltage switchgear and controlgear standards
    EN 60694:1996/A2:2001 COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
    EN 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    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)
    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
    CEI EN 62271-4 : 2014 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4: HANDLING PROCEDURES FOR SULPHUR HEXAFLUORIDE (SF[6]) AND ITS MIXTURES
    UNE-EN 62271-204:2012 High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV
    I.S. EN 62271-4:2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4: HANDLING PROCEDURES FOR SULPHUR HEXAFLUORIDE (SF[6]) AND ITS MIXTURES (IEC 62271-4:2013 (EQV))
    I.S. EN 62271-203:2012 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 203: GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES ABOVE 52 KV (IEC 62271-203:2011 (EQV))
    NF EN 61869-1 : 2009 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    09/30213269 DC : 0 BS EN 62271-4 ED1 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4: USE AND HANDLING OF SULPHUR HEXAFLUORIDE (SF[6])
    BS EN 45510-2-7:2002 Guide for the procurement of power station equipment. Electrical equipment Switchgear and controlgear
    IEEE C37.122.5-2013 REDLINE IEEE Guide for Moisture Measurement and Control in SF6 Gas-Insulated Equipment
    PD CLC/TR 62271-303:2009 High-voltage switchgear and controlgear Use and handling of sulfur hexafluoride (SF6)
    09/30205410 DC : 0 BS EN 62271-204 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 204: RIGID HIGH-VOLTAGE, GAS-INSULATED TRANSMISSION LINES FOR RATED VOLTAGES OF 72,5 KV AND ABOVE
    CEI UNI EN 45510-2-7 : 2006 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    07/30173659 DC : 0 BS EN 62271-200 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 200: AC METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
    04/30111859 DC : 0 IEC 62271-1 - HIGH-VOLTAGE SWITCHGEAR AND CONTROL GEAR - PART 1: COMMON SPECIFICATIONS
    NF EN 60376 : 2005 SPECIFICATION OF TECHNICAL GRADE SULFUR HEXAFLUORIDE (SF6) FOR USE IN ELECTRICAL EQUIPMENT
    CSA C60044-8 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    IEEE C37.100.1-2007 IEEE Standard of Common Requirements for High Voltage Power Switchgear Rated Above 1000 V
    BS EN 60044-8:2002 Instrument transformers Electronic current transformers
    BIS IS/IEC 62271-100 : 2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS
    BS EN 60137:2017 Insulated bushings for alternating voltages above 1000 V
    IEEE 1898-2016 IEEE Standard for High-Voltage Direct-Current (HVDC) Composite Post Insulators
    CSA C22.3 No. 61936-1 : 2008 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    I.S. EN 60137:2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    EN 61936-1 : 2010 AMD 1 2014 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES (IEC 61936-1:2010/A1:2014)
    IEC 62271-1:2017 High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current switchgear and controlgear
    IEC/IEEE 65700-19-03:2014 Bushings for DC application
    IEC 60137:2017 RLV Insulated bushings for alternating voltages above 1000 V
    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 6581:1995 Common clauses for high-voltage switchgear and controlgear standards
    NEMA SG 11 : 2013 GUIDE FOR HANDLING AND MAINTENANCE OF ALTERNATING CURRENT OUTDOOR HIGH-VOLTAGE CIRCUIT BREAKERS
    BS EN 62271-4:2013 High-voltage switchgear and controlgear Handling procedures for sulphur hexafluoride (SF6) and its mixtures
    BS EN 61869-1:2009 Instrument transformers General requirements
    CSA C22.3 No. 61936-1 : 2008 : R2015 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    UNE-EN 60137:2011 Insulated bushings for alternating voltages above 1 000 V
    94/712993 DC : DRAFT NOV 1994 PREN 45511 - GUIDE FOR PROCUREMENT - ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    04/30111589 DC : 0
    BS 6581:1985 Specification for common requirements for high-voltage switchgear and controlgear standards
    08/30191891 DC : DRAFT OCT 2008 BS EN 61936-1 - POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    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
    NF EN 60044-8 : 2006 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSDUCERS
    IEC 61936-1:2010+AMD1:2014 CSV Power installations exceeding 1 kV a.c. - Part 1: Common rules
    CSA C60044-2 : 2007 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    CSA C60044-8 :2007 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRANSFORMERS
    CSA C60044-2 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 2: INDUCTIVE VOLTAGE TRANSFORMERS
    BS EN 62271-1:2017 High-voltage switchgear and controlgear Common specifications for alternating current switchgear and controlgear
    CSA C61869-1 : 2014 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    BIS IS/IEC 62271-1 : 2007 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS
    I.S. EN 45510-2-7:2002 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    IEEE 242-2001 IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)
    IEC 60044-8:2002 Instrument transformers - Part 8: Electronic current transformers
    UNE-EN 61869-1:2010 Instrument transformers -- Part 1: General requirements
    UNE-EN 62271-100:2011 High-voltage switchgear and controlgear -- Part 100: Alternating-current circuit-breakers
    IEC GUIDE 111:2004 Electrical high-voltage equipment in high-voltage substations - Common recommendations for product standards
    IEC TR 62271-303:2008 High-voltage switchgear and controlgear - Part 303: Use and handling of sulphur hexafluoride (SF6)
    CLC/TR 62271-303 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 303: USE AND HANDLING OF SULPHUR HEXAFLUORIDE (SF[6])
    I.S. EN 61869-1:2009 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    CEI EN 60044-8 : 2004 INSTRUMENT TRANSFORMERS - PART 8: ELECTRONIC CURRENT TRASFORMERS
    12/30253935 DC : DRAFT JUNE 2012 BS EN 62271-201 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - AC SOLID-INSULATED ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV
    IEEE C37.016-2006 IEEE Standard for AC High Voltage Circuit Switchers rated 15.5kV through 245kV
    S.R. CLC/TR 62271-303:2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 303: USE AND HANDLING OF SULPHUR HEXAFLUORIDE (SF[6])
    CSA C60044-7 : 2007 : R2016 INSTRUMENT TRANSFORMERS - PART 7: ELECTRONIC VOLTAGE TRANSFORMERS
    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
    CSA C60044-7 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 7: ELECTRONIC VOLTAGE TRANSFORMERS
    IEEE DRAFT C37.12.1 : D2.0 2006 HIGH HIGH-VOLTAGE (>1000 V) CIRCUIT BREAKER INSTRUCTION MANUAL CONTENT
    UNI CEI EN 45510-2-7 : 2011 GUIDE FOR PROCUREMENT OF POWER STATION EQUIPMENT - PART 2-7: ELECTRICAL EQUIPMENT - SWITCHGEAR AND CONTROLGEAR
    CSA C60044-7 : 2007 INSTRUMENT TRANSFORMERS - PART 7: ELECTRONIC VOLTAGE TRANSFORMERS
    BIS IS/IEC 62271-109 : 2008 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES
    CSA C60044-1 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    CSA C60044-1 : 2007 INSTRUMENT TRANSFORMERS - PART 1: CURRENT TRANSFORMERS
    IEEE C37.10-2011 REDLINE IEEE Guide for Investigation, Analysis, and Reporting of Power Circuit Breaker Failures
    I.S. EN 60376:2005 SPECIFICATION OF TECHNICAL GRADE SULFUR HEXAFLUORIDE (SF[6]) FOR USE IN ELECTRICAL EQUIPMENT
    BS EN 62271-100 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 100: ALTERNATING-CURRENT CIRCUIT-BREAKERS (IEC 62271-100:2008)
    IEEE C37.123-1996 IEEE Guide to Specifications for Gas-Insulated, Electric Power Substation Equipment
    I.S. EN 61936-1:2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C. - PART 1: COMMON RULES
    IEC TR 62271-306:2012 High-voltage switchgear and controlgear - Part 306: Guide to IEC 62271-100, IEC 62271-1 and other IEC standards related to alternating current circuit-breakers
    IEC 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    IEC 60076-15:2015 Power transformers - Part 15: Gas-filled power transformers
    IEC 62271-203:2011 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    IEC 62271-204:2011 High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV
    IEC 62271-109:2008+AMD1:2013 CSV High-voltage switchgear and controlgear - Part 109: Alternating-current series capacitor by-pass switches
    BS EN 61936-1 : 2010 POWER INSTALLATIONS EXCEEDING 1 KV A.C - PART 1: COMMON RULES
    UNE-EN 61936-1:2012 Power installations exceeding 1 kV a.c. -- Part 1: Common rules
    EN 62271-204:2011 High-voltage switchgear and controlgear - Part 204: Rigid gas-insulated transmission lines for rated voltage above 52 kV
    EN 45510-2-7:2002 Guide for procurement of power station equipment - Part 2-7: Electrical equipment - Switchgear and controlgear
    CEI EN 62271-203 : 2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 203: 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)
    BS EN 60298:1996 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
    15/30265353 DC : 0 BS EN 62271-1 ED 2 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS FOR ALTERNATING CURRENT SWITCHGEAR AND CONTROLGEAR
    BS EN 62271-109 : 2009 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES
    BS EN 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    BS EN 60694:1997 Common specifications for high-voltage switchgear and controlgear standards
    I.S. EN 62271-204:2011 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 204: RIGID GAS-INSULATED TRANSMISSION LINES FOR RATED VOLTAGE ABOVE 52 KV (IEC 62271-204:2011 (EQV))
    17/30368308 DC : 0 BS EN 62271-109 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING-CURRENT SERIES CAPACITOR BY-PASS SWITCHES
    07/30174621 DC : DRAFT DEC 2007 BS EN 62271-109 AMD1 - HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 109: ALTERNATING CURRENT SERIES CAPACITOR BYPASS SWITCHES
    IEEE C37.122.1-2014 REDLINE IEEE Guide for Gas-Insulated Substations Rated Above 52 kV
    03/113996 DC : DRAFT OCT 2003 IEC 60376 ED.2 - SPECIFICATION OF TECHNICAL GRADE SF6 FOR USE IN ELECTRICAL EQUIPMENT
    12/30275045 DC : 0 BS EN 60076-15 - POWER TRANSFORMERS - PART 15: GAS-FILLED POWER TRANSFORMER
    BS EN 62271-204:2011 High-voltage switchgear and controlgear Rigid gas-insulated transmission lines for rated voltage above 52 kV
    IEC 60137:2017 Insulated bushings for alternating voltages above 1000 V
    CEI EN 61869-1 : 2010 INSTRUMENT TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
    I.S. EN IEC/IEEE 65700:2018 BUSHINGS FOR DC APPLICATION
    UNE-EN 62271-4:2014 High-voltage switchgear and controlgear - Part 4: Handling procedures for sulphur hexafluoride (SF6) and its mixtures
    CEI EN 60137 : 2009 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
    IEC 61869-1:2007 Instrument transformers - Part 1: General requirements
    I.S. EN 62271-1:2017 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: COMMON SPECIFICATIONS FOR ALTERNATING CURRENT SWITCHGEAR AND CONTROLGEAR
    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))
    IEC 62271-100:2008+AMD1:2012+AMD2:2017 CSV High-voltage switchgear and controlgear - Part 100: Alternating-current circuit-breakers
    EN 62271-4 : 2013 High-voltage switchgear and controlgear - Part 4: Handling procedures for sulphur hexafluoride (SF6) and its mixtures
    EN 61869-1:2009 Instrument transformers - Part 1: General requirements
    EN 62271-203:2012 High-voltage switchgear and controlgear - Part 203: Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
    EN 60044-8:2002 Instrument transformers - Part 8: Electronic current transformers
    BS 5524:1987 Specification for gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above

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

    IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
    IEC 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
    IEC 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    IEC 60694:1996+AMD1:2000+AMD2:2001 CSV Common specifications for high-voltage switchgear and controlgear standards
    IEC 60376B:1974 Second supplement: Clause 26
    IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
    ISO 14040:2006 Environmental management Life cycle assessment Principles and framework
    IEC 60376A:1973 First supplement: Section Thirteen: Mineral oil content
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