Standard No.:	GB/T 21413.2-2021
English Name:	Railway applications—Electric equipment for rolling stock—Part 2:Electrotechnical components—General rules
Chinese Name:	轨道交通 机车车辆电气设备 第2部分：电工器件 通用规则
Chinese Classification:	S35    Electric traction equipment
Professional Classification:	GB    National Standard
Issued by:	SAMR, SAC
Issued on:	2021-12-31
Implemented on:	2022-7-1
Status:	valid
Superseding:	GB/T 21413.2-2008 Railway applications—Electric equipment for rolling stock—Part 2:Electrotechnical components—General rules
Language:	English
File Format:	PDF
Word Count:	16500 words
Price(USD):	495.0
Delivery:	via email in 1~5 business day

1 Scope This document specifies the general rules for all electrical devices installed in the main, auxiliary, control and indicating circuits of rolling stock. This document applies to all electrical devices on rolling stock. Electrical components are primarily switchgear and control equipment, but also include relays, electro-pneumatic (magnetic) valve resistors, fuses, etc., regardless of the nature of their control. Currently, electronic components or electronic assemblies are also commonly included in electrical devices. This document does not apply to electronic equipment, but the fact that an electrical device contains electronic components or electronic assemblies does not exclude it from the scope of this document. The electronic components or electronic assemblies comply with the appropriate standards. In consultation with the manufacturer, certain rules of this document may be applied to electrical components on other rolling stock (e.g. industrial and mining locomotives, trolleybuses, etc.). This document gives: Device characteristics; the conditions of use to which the device should be subjected; The test items and test methods to be used to verify that the device complies with the characteristics under the conditions of use; The information to be marked or given on the device. This document does not apply to industrial electrical components, which are subject to their own product standards. In order to ensure that these devices work properly on rolling stock, this document only specifies the special requirements for these devices under rail traffic conditions. For this purpose, additional requirements to be fulfilled by these devices will be described in specific documents, such as: Adaptation (e.g. control voltage, environmental conditions, etc.); Installation and use without the need to withstand specific rolling stock conditions; additional tests to verify that the devices meet the conditions of use of the rolling stock. In the event of a discrepancy between the requirements of this document and the relevant product standards for rolling stock, the requirements of the product standards shall prevail. 2 Normative references The contents of the following documents constitute essential provisions of this document by means of normative references in the text. Among them, note the period of reference documents, only the date corresponding to the version applicable to this document; not note 8 period of reference documents, its latest version (including all the revision of the list) applicable to this document. GB/T 2423.1 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test A: Low Temperature (GB/T 2423.1-2008, IEC 60068-2-1: 2007, IDT) GB/T 2423.2 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test B: High Temperature (GB/T 2423.2-2008, IEC 60068-2-2: 2007, IDT) GB/T 2423.3 Environmental Testing Part 2: Test Methods Test Cab: Constant Damp Heat Test (GB/T 2423.3-2016, IEC 60068-2-78: 2012, IDT) GB/T 2423.4 Environmental Testing for Electric and Electronic Products Part 2: Test Methods Test Db: Alternating Damp Heat (12 h+12 h cycle) (GB/T 2423.4-2008, IEC 60068-2-30: 2005, IDT) GB/T 2423.18 Environmental Testing for Electric and Electronic Products Part 2: Test Methods Test Kb: Salt Spray Alternation (Sodium Chloride Solution) (GB/T 2423.18 - 2012, IEC 60068-2-52: 1996, IDT) GB/T 2900.18-2008 Electrotechnical terminology Low voltage apparatus GB/T 2900.36-2021 Electrotechnical terminology Electric traction (IEC 60050-811:2017, IDT) GB/T 4208 Degrees of Protection Provided by Enclosures (IP Code) (GB/T 4208-2017, IEC 60529:2013, IDT) GB/T 5465.2-2008 Graphical Symbols for Electrical Equipment Part 2: Graphical Symbols (IEC 60417 DB: 2007, IDT) GB/T 21413.1-2018 Electric Equipment for Rail Transit Rolling Stock Part 1: General Service Conditions and General Rules (IEC 60077-1:2017, MOD) GB/T 25840 Guidelines for Allowable Temperature Rise of Electrical Equipment Components (especially Terminal Blocks) (GB/T 25840-2010, IEC/TR 60943: 2009, IDT) 3 Terms and definitions The terms defined in GB/T 21413.1-2018, GB/T 2900.18-2008 and GB/T 2900.36-2021 and the following terms and definitions apply to this document. 3.1 Components 3.1.1 active electrical component A single device or group of devices that changes state in response to an electrical control signal to perform one or more inseparable logical or analogue electrical functions. Note: e.g. contactors, relays, etc. 4 Abbreviations The following abbreviations apply to this document. 5 Classification The devices are classified as follows: By operating frequency C1, C2 or C3 for active electrical devices only, for which the characteristics are given in 6.4. A1.A2, A3, A4 or B by device type, with the characteristics described in 6.5. By design type: Open structure; . Closed structure. 6 Characteristics 6.1 List of characteristics Where applicable, the device characteristics shall be given in the following: Device type (see 6.2); Ratings and limit values of the main circuit (see 6.3); Operating frequency (see 6.4); Device type (see 6.5); Electrical control circuits (see 6.6); Pneumatic control circuits (see 6.7); Manual control (see 6.8); Electrical auxiliary circuits (see 6.9); Pneumatic auxiliary circuit (see 6.10); Peak arc voltage (see 6.11). . 6.2 Device type Where applicable, the following should be specified: Type of device (e.g. DC contactor. Disconnector, driver control, brake control, etc.); Number of poles; Nominal and limiting values of the mains voltage (see 6.3); Ratings and limit values of the main circuit current (see 6.3); blocking medium; Polarity; Operating conditions (operating methods, control methods, etc.); Design type (see chapter 5); Enclosure protection class (see chapter 5). 7 Information on crystal production 7.1 Types of information 7.1.1 General requirements Product information, including identification and characteristics, should be given in the manufacturer's catalogues and brochures. In addition, other application-related information may be required, but should be agreed upon in advance. 7.1.2 Device documentation 7.1.2.1 Identification The marking includes: The name or trademark of the manufacturer; Model number; Change of status (if applicable); The code of the current standard (document) to which the manufacturer declares compliance. 7.1.2.2 Characteristics (if applicable) 8 General conditions of use Shall conform to the provisions of Chapter 8 of GB/T 21413.1-2018. 9 Structure and performance requirements 9.1 Structural requirements 9.1.1 General requirements Shall conform to the provisions of 9.1 in GB/T 21413.1-2018, with the following additions. 9.1.2 Terminal and connection capacity t The design of the terminal block and its connection capacity shall comply with the provisions of GB/T 25840. 10 test 10.1 test classification The provisions of 10.1 in GB/T 21413.1-2018 shall be complied with. In addition, in special applications, research tests or type tests other than those partially specified are required and should be approved in advance by the manufacturer and the user, and may include the following: The effect of harmonics on temperature rise and breaking characteristics; temperature rise under short-time overload conditions. 10.2 Verification of structural requirements The structural requirements shall be verified in accordance with 10.2 of GB/T 21413.1-2018 for compliance with the provisions of 9.1. 10.3 Type verification 10.3.1 Test sequence The type test shall be carried out in groups according to the sequence shown in Table 7. 10.3.2 General test conditions The device under test shall be in full conformity with the type product drawing. Each sequence I, I and IV (in Table 7) shall be tested on a separate sample in clean, new (or reconditioned as new) condition. Unless otherwise specified, for all (main, control and auxiliary) circuits the tests shall be carried out at rated operating values (current, voltage, air pressure), in accordance with 6.3. Unless otherwise specified in the relevant clause, the data recorded in the test report shall be within the tolerances in Table 8. However, with the agreement of the manufacturer, tests may be carried out under more severe conditions than those specified. For each test, the ambient air temperature shall be measured and recorded in the test report. The component under test shall be installed independently in the same housing as the manufacturer's specified installation conditions, or in the intended installation conditions of the rolling stock. 10.3.3 Test sequence I: General operating characteristics 10.3.3.1 Overview This sequence includes the tests and verifications described in Table 7. 10.3.3.2 Operating limits In addition to the provisions of 10.3.1 in GB/T 21413.1-2018, tests shall be carried out in accordance with the relevant operating conditions in 9.2.1. During and after the test, the device shall be able to operate normally. If applicable, the gas tightness test shall be carried out in accordance with 10.3.4.2 of GB/T 21413.1-2018. 10.3.3.3 Measurement of circuit resistance The main circuit should be measured using a DC supply by measuring the voltage drop or resistance between the terminals of each pole. For AC equipment, the AC impedance can be measured at the rated AC frequency. The measurement current should be between 10% and 100% of the agreed heat generation current. 10.3.4 Test sequence I: rated switching and breaking capacity (if applicable) 10.3.4.1 Overview 10.3.5 Test sequence M: Vibration and shock resistance 10.3.5.1 Overview The sequence consists of the tests and verifications described in Table 7. 10.4 Factory inspection 10.4.1 General requirements Each device shall be factory tested. 10.4.2 Functional tests The test shall be performed in accordance with 10.3.1.2 of GB/T 21413.1-2018. If there are no special requirements, the test shall be carried out 20 times continuously without current in the main circuit and the device shall operate normally. 10.4.3 Resistance or impedance measurement Performed in accordance with 10.2.3 of GB/T 21413.1-2018. Appendix A (normative) Relationship between auxiliary contacts and switchgear steady state

1 Scope 2 Normative references 3 Terms and definitions 4 Abbreviations 5 Classification 6 Characteristics 7 Information on crystal production 8 General conditions of use 9 Structure and performance requirements 10 test Appendix A (normative) Relationship between auxiliary contacts and switchgear steady state