GB/T 3317-1982
Replaced
GB/T 25890.5-2026
Active
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
Price:
$ 102
Basic Information
Standard Code:
GB/T 25890.5-2026
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Traction substation
ICS Name:
Electric traction equipment
Publish Date:
2026-01-28
Implement Date:
2026-08-01
Pages:
36 pages
Scope
This document specifies the working conditions, characteristics, structure, and performance requirements of DC switchgear assemblies in traction power supply systems, as well as information and markings, inspection rules, and test methods. This document applies to the structural design and inspection of DC switchgear assemblies with a nominal voltage not exceeding 3,000 V, whether in metal or non-metal enclosures, used in traction power supply systems. The design, manufacture, and separate testing of individual units in the switchgear assembly, such as circuit breakers, shall comply with the provisions of GB/T 25890.2-2026. Note 1: This document primarily includes assembly requirements related to the mutual influence between the enclosure and the equipment within it. Note 2: For electromagnetic compatibility (EMC), refer to GB/T 24338.6, and for additional requirements regarding reliability, availability, maintainability, and safety (RAMS), refer to GB/T 21562.
Development Information
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
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 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