GB/T 31239-2014 Technical specification for fittings of 1 000 kV substation

GB/T 31239-2023 Technical specification for fittings of 1 000 kV substation

GB/T 2314-2008 General technical requirements for electric power fittings GB/T 41-2000 Hexagon nuts—Product grade C GB/T 41-2016 Hexagon nuts,style 1—Product grade C GB/T 95-2002 Plain washers—Product grade C GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2315-2000 Nominal failing load series and coupling dimensions for electric power fittings GB/T 2315-2008 Nominal failing load series and coupling dimensions for electric power fittings GB/T 2315-2017 Specified failure load series and coupling dimensionsfor electric power fittings GB/T 2317.1-2000 Mechanical tests for electric power fittings GB/T 2317.1-2008 Test method for electric power fittings Part 1:Mechanical tests GB/T 2317.2-2000 Corona and RIV tests for electric power fittings GB/T 2317.2-2008 Test method for electric power fittings—Part 2:Corona and RIV tests for electric power fittings GB/T 2317.3-2000 Heat cycle tests for electric power fittings GB/T 2317.3-2008 Test method for electric power fittings—Part 3:Heat cycle tests for electric power fittings GB/T 2317.4-2000 Acceptance inspection,marking and packing for electric power fittings GB/T 2317.4-2008 Test method for electric power fittings—Part 4:Acceptance inspection for electric power fittings GB/T 2317.4-2023 Test method for electric power fittings—Part 4:Acceptance inspection GB/T 5780-2000 Hexagon head bolts—Product grade C GB/T 5780-2016 Hexagon head bolts—Product grade C 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 DL/T 284-2012 Hot dip galvanized bolts and nuts for transmission line towers and power accessories DL/T 373-2010 Electricity composite grease technical conditions DL/T 683-2010 Electricity fittings product model naming method DL/T 760.3-2012 Duct pressure equalization device, shielding ring, and equalizing and shielding ring (DL/T 760.3-2012) DL/T 768.2-2017 Electricity Fittings Manufacturing Quality - Part 2: Forged Steel Fittings DL/T 768.2-2002 Electricity Fittings Manufacturing Quality: Forged Parts DL/T 768.3-2017 Electricity Fittings Manufacturing Quality - Part 3: Stamping Parts DL/T 768.3-2002 Electricity fittings manufacturing quality, stamping parts DL/T 768.5-2017 Electricity Fittings Manufacturing Quality - Part 5: Aluminum Components DL/T 768.5-2002 Power fittings manufacturing quality aluminum components DL/T 768.7-2012 Electricity fittings manufacturing quality of steel parts hot-dip zinc coating DL/T 683-1999 DL/T 683-1999 Electricity Fittings Product Model Naming Method DL/T 760.3-2001 Fan/Gasket/Barrier Ring and Voltage Regulating/Shielding and Barrier Ring (DL/T 760.3-2001) DL/T 764.1-2001 Electricity fittings dedicated fasteners, hexagonal head bolts with pronged holes DL/T 764.2-2001 Electricity fittings dedicated fasteners with closed pins DL/T 768.7-2002 Electricity fittings manufacturing quality and hot-dip galvanized layer of steel parts GB/T 93-1987 Single coil spring lock washers--Normal type DL/T 768.6-2002 Manufacture quality specification for electric power fittings welding GB/T 95-1985 Plain washers--Product grade C DL/T 683-2024 DL/T 683-2024 Electricity Fittings Model Naming Methodology DL/T 764.1-2025 Electricity fasteners for fittings - Part 1: Hexagon head bolts with shank and pin through holes for use in electric power fittings DL/T 764.2-2025 Electricity fasteners for fittings - Part 2: Fastening hexagon head bolts and nuts for use in electric power fittings GB/T 5780-2025 Fasteners—Hexagon head bolts—Product grade C GB/T 93-2025 Fasteners—Single coil spring lock washers—Normal type DL/T 284-2021 The hot dip galvanized bolts and nuts used for transmission line towers and power equipment are as follows