GB/T 25890.1-2026 Active National standards

GB/T 25890.1-2026 Railway applications—Fixed installations—DC switchgear—Part 1:General

GB/T 25890.1-2026 Railway applications—Fixed installations—DC switchgear—Part 1:General

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

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Basic Information

Standard Code: GB/T 25890.1-2026

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: 48 pages

Scope

This document specifies the operating conditions and requirements, standard characteristics, and conventional settings for DC switchgear and control equipment in ground-based installations of traction power supply systems, as well as temperature rise limits, and describes the relevant test methods.
This document is applicable to ground-based electrical installations supplying power to public rail transit vehicles (such as urban rail transit, trams, and trolleybuses) with a nominal voltage not exceeding 3,000 V DC.

Development Information

Word Count: 73 Thousand words Pages: 48 pages

Same series standard

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

Replace the following standards

GB/T 25890.1-2010 Railway applications—Fixed installations—DC switchgear—Part 1:General

Referenced Standards

GB/T 1402-2025 Railway applications—Supply voltages of traction systems GB/T 2900.17-2024 Electrotechnical terminology—Measuring relays and protection equipment GB/T 2900.20-2016 Electrotechnical terminology—High-voltage switchgear and controlgear GB/T 2900.36-2021 Electrotechnical terminology—Electric traction GB/T 2900.59-2008 Electrotechnical terminology—Part 605:Generation, transmission and distribution of electricity—Substations GB/T 4798.3-2023 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 3:Stationary use at weatherprotected locations GB/T 4798.4-2023 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 4:Stationary use at non-weatherprotected locations GB/T 13539.1-2015 Low-voltage fuses—Part 1:General requirements GB/T 14048.1-2023 Low-voltage switchgear and controlgear—Part 1:General rules GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements 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 GB/T 25890.5-2026 Railway applications—Fixed installations—DC switchgear—Part 5:DC switchgear assemblies GB/T 32350.1-2025 Railway applications—Insulation coordination—Part 1:Basic requirements—Clearances and creepage distances for all electrical and electronic equipment GB/T 32578-2016 Railway application—Fixed installations—Electric traction overhead contact lines IEC 62271-200:2024

Adopt standards

IEC 61992-1:2014

Related Standards

GB/T 3317-1982 Replaced

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GB/T 6927-1986 Abolished

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GB 1402-1998 Replaced

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GB 5914.1-2000 Replaced

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