GB/T 32580.5-2026 Railway applications—Fixed installations—AC high voltage switchgear and instrument transformers—Part 5:27.5 kV and 2×27.5 kV metal-enclosed switchgear and controlgear

GB/T 32580.1-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 1:Circuit-breakers GB/T 32580.2-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 2:Disconnectors, earthing switches and switches GB/T 32580.3-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 3:Current transformers GB/T 32580.4-2026 Railway applications—Fixed installations—High voltage AC switchgear and transformers—Part 4:Voltage transformers

GB/T 28428-2012 27.5 kV and 2×27.5 kV AC metal-enclosed switchgear and controlgear for electrification railway

GB/T 1985-2023 High-voltage alternating current disconnectors and earthing switches GB/T 2900.1-2008 Electrotechnical terminology—Fundamental terms GB/T 2900.20-2016 Electrotechnical terminology—High-voltage switchgear and controlgear GB/T 3906-2020 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV GB/T 4025-2003 Basic and safety principles for man-machine interface, marking and identification Coding principles for indication devices and actuators GB/T 4025-2010 Basic and safety principles for man-machine interface,marking and identification—Coding principles for indicators and actuators GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 4728.1-2005 Graphical symbols for electrical diagrams—Part 1:General information GB/T 4728.1-2018 Graphical symbols for electrical diagrams—Part 1:General information GB 4824-2025 Industrial, scientific and medical equipment—Radio-frequency disturbance characteristics—Limits and methods of measurement GB/T 5465.2-2023 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 11021-2007 Electrical insulation—Thermal classification GB/T 11021-2014 Electrical insulation—Thermal evaluation and designation GB/T 11022-2020 Common specifications for high-voltage alternating-current switchgear and controlgear standards GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements GB/T 16935.1-2023 Insulation coordination for equipment within low-voltage supply systems—Part 1:Principles, requirements and tests GB/T 17626.4-1998 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test GB/T 17626.4-2008 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test GB/T 17626.4-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burstimmunity test GB/T 17626.11-2023 Electromagnetic compatibility—Testing and measurement techniques—Part 11:Voltage dips, short interruptions and voltage variations immunity tests for equipment with input current up to 16 A per phase GB/T 17626.17-2005 Electromagnetic Compatibility—Testing and measurement techniques—Ripple on d.c.input power port immunity test GB/T 17626.18-2016 Electromagnetic compatibility—Testing and measurement techniques—Damped oscillatory wave immunity test GB/T 17626.29-2006 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips, short interruptions and voltage variations on d.c .input power port immunity tests GB/T 17627-2019 High-voltage test techniques for low-voltage equipment—Definitions,test and procedure requirements,test equipment GB/T 17627.1-1998 High-voltage test techniques for low-voltage equipment—Part 1:Definitions,test and procedure requirements GB/T 17627.2-1998 High-voltage test techniques for low-voltage equipment—Part 2:Measuring system and test equipment GB/T 25840-2010 Guidance concerning the permissible temperature rise for parts of electrical equipment,in particular for terminals GB/T 34662-2017 Electrotechnical equipment—Temperatures of touchable hot surfaces GB/T 28427-2026 Cables for electrified railway—27.5 kV single-phase AC power cables and cable accessories