GB/T 3317-1982
Replaced
GB/T 25890.3-2026
Pending
National standards
GB/T 25890.3-2026 Railway applications—Fixed installations—DC switchgear—Part 3:Indoor d.c. disconnectors,switch-disconnectors and earthing switches
GB/T 25890.3-2026 Railway applications—Fixed installations—DC switchgear—Part 3:Indoor d.c. disconnectors,switch-disconnectors and earthing switches
Basic Information
Standard Code:
GB/T 25890.3-2026
Standard Type:
National standards
Standard Status:
Pending
is_force_gb:
no
CCS Name:
Traction substation
ICS Name:
Electric traction equipment
Publish Date:
2026-01-28
Implement Date:
2026-08-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国轨道交通电气设备与系统标准化技术委员会(SAC/TC 278)
Pages:
24 pages
Scope
本文件规定了牵引供电系统地面装置中户内直流隔离开关、负荷开关和接地开关的工作条件、开关特性、结构和性能要求、信息和标识、检验规则，描述了相关试验方法。
本文件适用于牵引供电系统地面装置中户内直流隔离开关、负荷开关和接地开关的选型和检验。
本文件不适用于成套开关设备、电磁兼容（EMC)和可靠性的要求，这些要求在GB/T 25890的其他部分中规定。
注1： 本文件中“开关”是指GB/T 25890.1—2026中3.1.5、3.1.6和 3.1.7所定义的“直流隔离开关和/或负荷开关和/或接地开关”。
Development Information
Drafting Units:
中铁电气化勘测设计研究院有限公司、中铁第四勘察设计院集团有限公司、天津长澳电器有限公司
Drafting Persons:
周玉杰、梁勇、李逢源、单翀皞、刘国怀
Same series standard
GB/T 25890.1-2026 Railway applications—Fixed installations—DC switchgear—Part 1:General
GB/T 25890.2-2026 Railway applications—Fixed installations—DC switchgear—Part 2:DC circuit breakers
GB/T 25890.4-2026 Railway applications—Fixed installations—DC switchgear—Part 4:Outdoor d.c.disconnectors,switch-disconnectors and earthing switches
GB/T 25890.5-2026 Railway applications—Fixed installations—DC switchgear—Part 5:DC switchgear assemblies
Replace the following standards
Referenced Standards
GB/T 11022-2020 Common specifications for high-voltage alternating-current switchgear and controlgear standards
GB/T 25890.1-2026 Railway applications—Fixed installations—DC switchgear—Part 1:General
GB/T 25890.5-2026 Railway applications—Fixed installations—DC switchgear—Part 5:DC switchgear assemblies
GB/T 32350.1-2015 Railway applications—Insulation coordination—Part 1:Basic requirements—Clearances and creepage distances for all electrical and electronic equipment
GB/T 32350.1-2025 Railway applications—Insulation coordination—Part 1:Basic requirements—Clearances and creepage distances for all electrical and electronic equipment
Adopt standards
IEC 61992-3:2015
Related Standards
GB/T 3318-1982
Replaced
GB/T 3318-1982 Rules for the inspecting and testing of electric locomotives after completion of construction
GB/T 6927-1986
Abolished
GB/T 6927-1986 Characteristics and tests of electrodynamic and electromagnetic braking systems
GB 1402-1998
Replaced
GB 1402-1998 A.C.Voltage of electric traction for the railway main lines
GB/T 3319-1998
Replaced
GB/T 3319-1998 Definition of the rated output of electric locomotives and motive power units
GB 5914.1-2000
Replaced