GB/T 25334.2-2023Railway locomotive carbody—Part 2: Electric locomotive (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document is Part 2 of GB/T 25334 "Railway Locomotive Body". GB/T 25334 has released the following parts.

---Part 1: Diesel locomotives;

---Part 2: Electric locomotives.

This document replaces GB/T 25334.2-2010 "Technical Conditions for Railway Locomotive Car Bodies Part 2: Electric Locomotive Car Bodies" and is consistent with Compared with GB/T 25334.2-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Changed the scope of application (see Chapter 1, Chapter 1 of the 2010 edition);

b) Changes in terms and definitions (see Chapter 3, Chapter 3 of the 2010 edition);

c) Added environmental conditions (see Chapter 4);

d) Changed the body composition (see Chapter 5, Chapter 4 of the 2010 edition);

e) The relevant requirements for the overall lifting of the vehicle body have been changed (see 6.1.3, 6.1.4, 5.1.19 of the 2010 edition);

f) Added requirements related to replacement of couplers and buffer devices (see 6.1.5);

g) Deleted the fatigue strength of car body steel structure welds, car body sealing, car body fire protection and fire protection, car body dimensions, driver's cab and components and special safety rules, door locks, couplers and hook tail frames and other relevant requirements (see 5.1.5, 5.1.7, 5.1.8, 5.1.9, 2010 edition 5.1.11, 5.1.13, 5.1.20);

h) The requirements for vehicle body pedals or pedal treads, doors, top covers and obstacle removers have been changed (see 6.1.7, 6.2.4~6.2.8, 2010 edition 5.1.14~5.1.18,5.4.4.3, 5.4.4.4);

i) The structure, layout and space requirements of the cab have been changed (see 6.1.9, 5.1.12 of the 2010 edition);

j) Delete the relevant requirements for vehicle body weldments (see 5.3.1 of the 2010 edition);

k) The relevant requirements for the strength of the steel structure of the car body, the connection device of the car body equipment, and the natural frequency of the car body have been changed (see 6.2.1, 6.2.2, 6.2.3, 2010 version of 5.1.3, 5.1.4, 5.1.5, 5.1.6);

l) Added flame retardant and hazardous substance limit requirements for non-metallic materials (see 6.3.2, 6.3.3);

m) The dimensions of the vehicle body after assembly and the surface protection requirements of the vehicle body steel structure have been changed (see 6.4.5, 5.4.5 and 5.4.6 of the 2010 edition);

n) Added locomotive vibration mode test method (see 7.5);

o) Type inspection has been changed (see Chapter 8, Chapter 6 of the 2010 edition).

Introduction

The locomotive body is an important part of the locomotive. It is the installation basis for all the locomotive equipment and provides a comfortable working environment for the drivers and passengers.

Safety protection is responsible for various impacts, vibrations and forces under locomotive traction and braking conditions. The locomotive body has sufficient strength and stiffness, and its manufacturing Precision plays an important role in the installation quality and aesthetics of the locomotive. GB/T 25334 "Railway Locomotive Body" aims to establish the design of locomotive body Manufacturing specifications consist of two parts.

---Part 1: Diesel locomotives. The purpose is to stipulate that the standard track gauge is 1435mm, electric transmission and hydraulic power driven by internal combustion engines. Requirements that need to be followed when designing and manufacturing new diesel locomotive bodies with transmission.

---Part 2: Electric locomotives. The purpose is to stipulate the design and design of new railway electric locomotive bodies with a standard gauge of 1435mm. Requirements that need to be followed during manufacturing.

1 Scope

This document specifies the environmental conditions, body composition, technical requirements, test methods, type inspection, marking, transportation of railway electric locomotives and storage.

This document applies to the design, manufacture and production of new railway electric locomotive bodies (hereinafter referred to as "car bodies") with a standard gauge of 1435mm. test.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 3367.3 Diesel locomotive vocabulary Part 3: Car body, bogie and braking device

GB/T 6769 Locomotive cab layout rules

GB/T 9438 Aluminum alloy castings

GB/T 13819 Copper and copper alloy castings

GB/T 25334.1 Railway locomotive bodies Part 1: Diesel locomotives

GB/T 32358-2015 Rail transit rolling stock bench test method

TB/T 1465 General technical conditions for ductile iron castings for rolling stock

TB/T 2541 Specification for static strength test of locomotive body

TB/T 2942.1 Steel castings for rolling stock Part 1: Technical requirements and inspection

TB/T 2944 (all parts) Forgings for rolling stock

TB/T 3138 Technical requirements for flame retardant materials used in rolling stock

TB/T 3139 Limits of non-metallic materials for rolling stock and harmful substances in indoor air

TB/T 3266.1 Rolling stock doors Part 1: Locomotive doors

TB/T 3548-2019 General Principles of Specifications for Strength Design and Test Appraisal of Locomotives and Rolling Stocks

3 Terms and definitions

The terms and definitions defined in GB/T 3367.3 and GB/T 25334.1 apply to this document.

4 Environmental conditions

The car body should be able to operate normally under the following environmental conditions.

a) The ambient temperature is -40°C~40°C;

b) The average maximum relative humidity of the wettest month is not more than 95% (the minimum average temperature of the month is 25°C);

c) Wind, sand, rain, snow, haze weather, occasional salt spray, acid rain, sandstorms and other natural environments.