GB/T 7674-2020 Active National standards

GB/T 7674-2020 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above

GB/T 7674-2020 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above

Publish Date: 2020-11-19 Implement Date: 2021-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us
Price: $ 143
Download

Basic Information

Standard Code: GB/T 7674-2020
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: High-voltage switchgear
ICS Name: High-voltage switchgear and controllers
Publish Date: 2020-11-19
Implement Date: 2021-06-01
Pages: 73 pages

Scope

This standard specifies the terms and definitions, normal and special operating conditions, rated values, design and structure, type tests, factory tests, and selection guidelines for gas-insulated metal-enclosed switchgear equipment.
This standard applies to gas-insulated metal-enclosed switchgear equipment (hereinafter referred to as "GIS" or "switchgear equipment") installed indoors and outdoors with a rated voltage of 72.5 kV and above and a rated frequency of 50 Hz, where the insulation is obtained at least partially through insulating gas rather than air under atmospheric pressure.
The gas-insulated metal-enclosed switchgear equipment covered by this standard consists of independent components that can be directly connected together, and these components can only operate in this manner.
As needed, this standard refines and supplements the relevant standards applicable to the various independent components that make up GIS.

Development Information

Word Count: 138 Thousand words Pages: 73 pages

Replace the following standards

Referenced Standards

GB/T 1985-2014 High-voltage alternating-current disconnectors and earthing switches GB/T 2423.17-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ka:Salt mist GB/T 4109-2008 Insulated bushings for alternating voltages above 1 000 V GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards GB/T 22381-2017 Cable connections between gas-insulated metal-enclosed switchgear for rated voltages equal to and above 72.5 kV and fluid-filled and extruded insulation power cables—Fluid-filled and dry type cable-terminations GB/T 22382-2017 Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above GB/T 26218.1-2010 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 1:Definitions,information and general principles GB/T 26218.2-2010 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 2:Ceramic and glass insulators for a.c.systems GB/T 26218.3-2011 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 3:Composite insulators for a.c.systems GB/T 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.2-2010 Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests GB/T 3785.2-2023 Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests GB/T 7354-2003 Partial discharge measurements GB/T 7354-2018 High-voltage test techniques—Partial discharge measurements GB/T 8905-1996 The guide for processing and measuring SF6 gas in power apparatus GB/T 8905-2012 The guide for management and measuring SF6 gas in electrical equipment GB/T 9326.1-2008 Oil-filled,paper or polypropylene paper laminate insulated,metal-sheathed cables and accessories for alternating voltages up to and including 500 kV—Part 1:Test GB/T 9326.2-2008 Oil-filled,paper or polypropylene paper laminate insulated,metal-sheathed cables and accessories for alternating voltages up to and including 500 kV—Part 2:Oil-filled paper insulated,lead-sheathed cables for alternating voltages up to and including 500 kV GB/T 9326.3-2008 Oil-filled,paper or polypropylene paper laminate insulated, metal-sheathed cables and accessories for alternating voltages up to and including 500 kV—Part 3:Sealing end GB/T 9326.4-2008 Oil-filled,paper or polypropylene paper laminate insulated,metal-sheathed cables and accessories for alternating voltages up to and including 500 kV—Part 4:Joint GB/T 9326.5-2008 Oil-filled,paper or polypropylene paper laminate insulated,metal-sheathed cables and accessories for alternating voltages up to and including 500 kV—Part 5:Pressure tanks GB/T 9789-1988 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture GB/T 9789-2008 Metallic and other non-organic coatings—Sulfur dioxide test with general condensation of moisture GB/T 11017.1-2002 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 110kV—Part 1:Test methods and requirements GB/T 11017.1-2014 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 110 kV(Um=126 kV)—Part 1:Test methods and requirements GB/T 11017.1-2024 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 66 kV(Um=72.5 kV)and 110 kV(Um=126 kV)—Part 1:Test methods and requirements GB/T 11023-2018 Test method of SF6 gas tightness for high-voltage switchgear GB 12022-1989 Sulphur hexafluoride for industrial use GB/T 12022-2006 Sulphur hexafluoride for industrial use GB/T 12022-2014 Industrial sulfur hexafluoride GB/T 13540-1992 Anti-seismic characteristic test for high-voltage switchgear GB/T 13540-2009 Seismic qualification for high-voltage switchgear and controlgear GB/T 16927.1-1997 High-voltage test techniques Part 1:General test requirements GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements GB/T 21429-2008 Composite insulators-Hollow insulators for use in outdoor and indoor electrical equipment—Definitions,test methods,acceptance criteria and design recommendations GB/T 22078.1-2008 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV)—Part1:Power cable systems-cables with cross-linked polyethylene insulation and their accessories for rated voltage of 500 kV(Um=550 kV)—Test methods and requirements GB/T 23752-2009 Hollow pressurized and unpressurized ceramic and glass insulators for use in electrical equipment with rated voltages greater than 1000V GB/T 28537-2012 Use and handling of sulphur hexafluoride (SF6) in high-voltage switchgear and controlgear GB/T 28819-2012 Aluminium alloy enclosures for gas-filled high-voltage switchgear GB/T 28819-2023 Aluminium alloy enclosures for gas-filled high-voltage switchgear GB/T 12022-2025 Industrial sulphur hexafluoride

Adopt standards

IEC 62271-203:2011

Related Standards

Contact Us