GB/T 25890.5-2026 Pending National standards

GB/T 25890.5-2026 Railway applications—Fixed installations—DC switchgear—Part 5:DC switchgear assemblies

GB/T 25890.5-2026 Railway applications—Fixed installations—DC switchgear—Part 5:DC switchgear assemblies

Publish Date: 2026-01-28 Implement Date: 2026-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 25890.5-2026

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: 36 pages

Scope

本文件规定了牵引供电系统地面装置中直流成套开关设备工作条件、成套设备的特性、结构和性能要求、信息和标识、检验规则和试验方法。
本文件适用于牵引供电系统地面装置中标称电压不超过3 000 V的金属外壳或非金属外壳的直流成套开关设备的结构设计及检验。
成套装置中的独立单元，例如断路器，其设计、制造和单独试验按GB/T 25890.2—2026的规定进行。
注1：本文件主要包括外壳和外壳内设备间相互影响的成套要求。
注2：电磁兼容（EMC)见GB/T 24338.6，对可信性（RAMS)的附加要求见GB/T 21562。

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、中车株洲电力机车研究所有限公司

Drafting Persons:

樊春雷、李超、王亚飞、龚孟荣、彭秋波

Word Count: 54 Thousand words Pages: 36 pages

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 25890.3-2026 Railway applications—Fixed installations—DC switchgear—Part 3:Indoor d.c. disconnectors,switch-disconnectors and earthing switches GB/T 25890.4-2026 Railway applications—Fixed installations—DC switchgear—Part 4:Outdoor d.c.disconnectors,switch-disconnectors and earthing switches

Replace the following standards

GB/T 25890.6-2010 Railway applications—Fixed installations—DC switchgear—Part 6:DC switchgear assemblies

Referenced Standards

GB/T 1408.1-1999 Methods of test for electric strength of solid insulating materials-Tests at power frequencies GB/T 1408.1-2006 Electrical strength of insulating materials—Test methods—Part 1:Tests at power frequencies GB/T 1408.1-2016 Insulating materials—Test methods for electric strength—Part 1:Test at power frequencies GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) 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 25890.3-2010 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 GB/T 25890.7-2010 Railway applications—Fixed installations—DC switchgear—Part 7-1:Measurement,control and protection devices for specific use in d.c.traction systems—Application guide 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 61992-6:2020

Related Standards

GB/T 3317-1982 Replaced

GB/T 3317-1982 General technical specifications for electric locomotives

Publish Date: 1982-12-24

GB/T 3318-1982 Replaced

GB/T 3318-1982 Rules for the inspecting and testing of electric locomotives after completion of construction

Publish Date: 1982-12-24

GB/T 6927-1986 Abolished

GB/T 6927-1986 Characteristics and tests of electrodynamic and electromagnetic braking systems

Publish Date: 1986-09-23

GB 1402-1998 Replaced

GB 1402-1998 A.C.Voltage of electric traction for the railway main lines

Publish Date: 1998-12-17

GB/T 3319-1998 Replaced

GB/T 3319-1998 Definition of the rated output of electric locomotives and motive power units

Publish Date: 1998-12-17

GB 5914.1-2000 Replaced

GB 5914.1-2000 Visibility conditions for driver's cabs of locomotives

Publish Date: 2000-01-03