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TB/T 3113.4-2025Railway turnout switching equipment - Switch machine for railways - Electric switch machine - Part 4: ZD7 &ZDKJ series switch machine (English PDF)

铁路道岔转换设备道岔转辙机电动转辙机第4部分：ZD7 和 ZDKJ系列

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Issued by

National Railway Administration

Level / Type

National · Recommended

Issue date

April 9, 2025

Implementation date

November 1, 2025

Scope

TB/T 3113.4-2025 is the English-translated version of 铁路道岔转换设备道岔转辙机电动转辙机第4部分：ZD7 和 ZDKJ系列.

TB/T 3113.4-2025 is the Chinese standard "Railway turnout switching equipment - Switch machine for railways - Electric switch machine - Part 4: ZD7 &ZDKJ series switch machine".

It was issued by National Railway Administration. Issued on 2025-04-09, in force from 2025-11-01.

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Document preview — TB/T 3113.4-2025

National Standard of the People's Republic of China

Issued by: National Railway Administration

1 Foreword

TB/T 3113.4-2025 was issued by National Railway Administration on 9 April 2025 and has been in force since 1 November 2025.

It is one of 2 parts of the TB/T 3113 series.

2 About this standard

Sector: Railway & Train Industry Standard (Recommended)

Issued by: National Railway Administration

English translation: about 15 pages (approximate)

3 Related standards

Other parts of this standard:

TB/T 3113.1-2019 — Electric switch machine Part 1: ZD6 series electric switch machine

4 Classification and status

Prefix TB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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