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GB/T 21414-2021 English PDF

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US$399.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 21414-2021: Railway applications - Rolling stock - Protective provisions against electrical hazards
Status: Valid

GB/T 21414: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 21414-2021	399	Add to Cart	4 days	Railway applications - Rolling stock - Protective provisions against electrical hazards	Valid
GB/T 21414-2008	634	Add to Cart	3 days	Railway applications -- Rolling stock -- Protective provisions against electrical hazards	Obsolete

Similar standards

GB/T 24338.1 GB/T 24338.4 GB/T 21561.3 GB/T 21413.4 GB/T 21413.3

Basic data

Standard ID: GB/T 21414-2021 (GB/T21414-2021)
Description (Translated English): Railway applications - Rolling stock - Protective provisions against electrical hazards
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: S35
Word Count Estimation: 21,226
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 21414-2021: Railway applications - Rolling stock - Protective provisions against electrical hazards

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Railway applications -- Rolling stock -- Protective provisions against electrical hazards ICS 29:280 CCSS35 National Standards of People's Republic of China Replacing GB/T 21414-2008 Rail transit rolling stock Provisions for the protection of electrical hazards (IEC 61991:2019,MOD) Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms, Definitions and Abbreviations 1 3:1 Terms and Definitions 1 3:2 Abbreviations 5 4 Voltage class classification 5 4:1 General principles 5 4:2 Connections between circuits 5 4:3 Exceptions6 5 Protective measures against direct contact6 5:1 General Requirements 6 5:2 Insulation protection 6 5:3 Protection by preventing access 6 5:4 Protection with Class I Voltage (ELV) 8 5:5 Warning signs 8 6 Protective measures against indirect contact8 6:1 General requirements8 6:2 Protecting the connection 9 6:3 Power off 9 6:4 Main protection connection 9 6:5 Instructions and Exceptions to Indirect Contact 10 6:6 Additional requirements --- Bearing 11 7 Power circuit 12 7:1 General requirements 12 7:2 Power circuits insulated from the body or bogie 12 7:3 Power circuit using body or bogie 12 8 Other requirements12 8:1 General requirements 12 8:2 Current receiver 12 8:3 Capacitor 12 8:4 Plug and socket arrangements 13 8:5 Special power supply 13 Appendix A (Informative) Examples of Solutions for Impedance Management in Electric Multiple Units (EMUs) 14 Appendix B (normative) terms negotiable between supply and demand15 Reference 16

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document replaces GB/T 21414-2008 "Regulations on the Protection of Electrical Hidden Hazards in Railway Application Rolling Stocks", and GB/T 21414- Compared with:2008, except for structural adjustment and editorial changes, the main technical changes are as follows: a) Changed the scope of application of the document (see Chapter 1, Chapter 1 of the:2008 edition); b) Some terms and definitions have been changed, and some terms and definitions have been added (see 3:1, Chapter 3 of the:2008 edition); c) Added abbreviations (see 3:2); d) Deleted the voltage class classification table 2 and table 3 of other countries (see 4:1 of the:2008 edition); e) Changed the note in 4:3 to the main text (see 4:3, 4:3 of the:2008 edition); f) The reference standard GB/T 21413:1-2008 in insulation protection was changed to GB/T 32350:1, and the nominal working voltage was changed to Rated working voltage (see 5:2, 5:1 of the:2008 edition); g) Changed the referenced Chapter 8 to 8:5:2 (see 5:3:1:2, 5:2:1:2 of the:2008 edition); h) Changed the protection of the reserved spacing for voltage levels I ~ III (see 5:3:1:3, 5:2:1:3 of the:2008 edition); i) Changed the protection of the closed electrical operation area of the voltage level IV (see 5:3:2:1, 5:2:2:1 of the:2008 edition); j) Changed the protection of the reserved spacing of voltage class IV (see 5:3:2:2, 5:2:2:2 of the:2008 edition); k) Changed the protection using Class I voltage (ELV) (see 5:4, 5:3 of the:2008 edition); l) Changed the description of the general requirements for protective measures against indirect contact (see 6:1, 6:1 of the:2008 edition); m) Changed the requirements for equipotential bonding (see 6:2:2, 6:2:2 of the:2008 edition); n) Changed the content of power cut-off application (see 6:3:1, 6:3:1 of the:2008 edition); o) Changed the general requirements for the main protection connection (see 6:4:1, Chapter 6 of the:2008 edition); p) changed the connection channel (see 6:4:2, 6:4:2 of the:2008 edition); q) Added resistance value calculation requirements (see 6:4:3); r) The requirements for parts requiring protective measures have been changed (see 6:5:1, 6:5:1 of the:2008 edition); s) Changed the requirements for voltage class II in components that do not require protection (see 6:5:2:2, 6:5:2:1 of the:2008 edition); t) Changed the requirements for rubber wheels or suspension systems without protective conductors (see 6:5:5, 6:5:5 of the:2008 edition); u) Added additional requirements---bearings (see 6:6); v) Changed the general requirements for power circuits (see 7:1, 7:1 of the:2008 edition); w) Changed the requirements for current collectors (see 8:2, 8:1 of the:2008 edition); x) Changed special power requirements (see 8:5, 8:4 of the:2008 edition): This document uses the redrafting method to modify and adopt IEC 61991:2019 "Regulations on the Protection of Electrical Hazards of Rail Transit Locomotive Vehicles": Compared with IEC 61991:2019, this document has made the following structural adjustments: ---3:1:1:1 corresponds to 3:1:1:3 of IEC 61991:2019; ---3:1:1:2 corresponds to 3:1:1:1 of IEC 61991:2019; ---3:1:1:3 corresponds to 3:1:1:2 of IEC 61991:2019; ---3:1:2:1 corresponds to 3:1:2:15 of IEC 61991:2019; ---3:1:2:2 corresponds to 3:1:2:14 of IEC 61991:2019; ---3:1:2:3 corresponds to 3:1:2:5 of IEC 61991:2019; ---3:1:2:4 corresponds to 3:1:2:19 of IEC 61991:2019; ---3:1:2:5 corresponds to 3:1:2:27 of IEC 61991:2019; ---3:1:3:1 corresponds to 3:1:2:1 of IEC 61991:2019; ---3:1:3:2 corresponds to 3:1:2:2 of IEC 61991:2019; ---3:1:3:3 corresponds to 3:1:2:3 of IEC 61991:2019; ---3:1:3:4 corresponds to 3:1:2:4 of IEC 61991:2019; ---3:1:3:5 corresponds to 3:1:2:6 of IEC 61991:2019; ---3:1:3:6 corresponds to 3:1:2:7 of IEC 61991:2019; ---3:1:3:7 corresponds to 3:1:2:8 of IEC 61991:2019; ---3:1:3:8 corresponds to 3:1:2:9 of IEC 61991:2019; ---3:1:3:9 corresponds to 3:1:2:10 of IEC 61991:2019; ---3:1:3:10 corresponds to 3:1:2:11 of IEC 61991:2019; ---3:1:3:11 corresponds to 3:1:2:12 of IEC 61991:2019; ---3:1:3:12 corresponds to 3:1:2:13 of IEC 61991:2019; ---3:1:3:13 corresponds to 3:1:2:16 of IEC 61991:2019; ---3:1:3:14 corresponds to 3:1:2:17 of IEC 61991:2019; ---3:1:3:15 corresponds to 3:1:2:18 of IEC 61991:2019; ---3:1:3:16 corresponds to 3:1:2:20 of IEC 61991:2019; ---3:1:3:17 corresponds to 3:1:2:21 of IEC 61991:2019; ---3:1:3:18 corresponds to 3:1:2:22 of IEC 61991:2019; ---3:1:3:19 corresponds to 3:1:2:23 of IEC 61991:2019; ---3:1:3:20 corresponds to 3:1:2:24 of IEC 61991:2019; ---3:1:3:21 corresponds to 3:1:2:25 of IEC 61991:2019; ---3:1:3:22 corresponds to 3:1:2:26 of IEC 61991:2019; ---3:1:3:23 corresponds to 3:1:2:28 of IEC 61991:2019; --- Appendix A corresponds to Appendix C of IEC 61991:2019; ---Appendix B corresponds to Appendix A of IEC 61991:2019; --- Deleted Appendix B (informative) of IEC 61991:2019: There are many technical differences between this document and IEC 61991:2019: A single line (|) is marked: These technical differences and their reasons are as follows: --- Regarding normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country and the circumstances of the adjustment: The situation is reflected in Chapter 2 "Normative References", and the specific adjustments are as follows: ● Replace IEC 60529 with GB/T 4208-2017 which is equivalent to adopting international standards (see 5:3:1:1, 5:3:2:1); ● Replace IEC /T S60479-1 (see 8:5:2) with GB/T 13870:1 which is equivalent to adopting international standards; ● Replace IEC 61310-1 (see 5:5) with GB/T 18209:1 which is equivalent to adopting international standards; ● Replacing IEC 62128-1:2013 with GB/T 28026:1-2018 modified to adopt international standards (see 5:3:1:3, 5:3:2:2, 6:4:3, 6:5:5); ● Replacing IEC 62313 with GB/T 28027 modified to adopt international standards (see 6:2:3, 6:4:2); ● Replacing IEC 62497-1 with GB/T 32350:1 modified to adopt international standards (see 5:2, 6:5:2:3); ● Removed IEC 62995:2018 (see 6:2:2): --- Delete the special country requirements in 4:3, which have nothing to do with my country's national conditions (see 4:3): --- Increase the terms and conditions that can be negotiated between the supply and demand sides to meet my country's national conditions (see 8:1): The following editorial changes have been made to this document: --- Delete the note in 4:1, 6:4:4, 8:4:1; --- Deleted Note 2 in 6:4:2; --- Delete the informative Appendix B "Special National Conditions" of IEC 61991:2019: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by the National Railway Administration: This document is under the jurisdiction of the National Standardization Technical Committee for Traction Electrical Equipment and Systems (SAC/TC278): This document is drafted by: CRRC Zhuzhou Electric Locomotive Research Institute Co:, Ltd:, Zhuzhou CRRC Times Electric Co:, Ltd:, CRRC Zhuzhou Electric Locomotive Co:, Ltd:, CRRC Qingdao Sifang Locomotive and Rolling Stock Co:, Ltd:, CRRC Qingdao Sifang Vehicle Research Institute Co:, Ltd: The main drafters of this document: Zhang Lizhi, Li Hua, Tang Liu, Cheng Quan, Jia Xiangjie, Sun Guobin: The previous versions of this document and its superseded documents are as follows: ---First published in:2008 as GB/T 21414-2008; ---This is the first revision: Rail transit rolling stock Provisions for the protection of electrical hazards

1 Scope

This document specifies the protection requirements for electrical hazards in the design and manufacture of electrical installations and equipment of rolling stock: This document applies to rolling stock, externally powered road transport vehicles (such as trams), maglev vehicles and the above mentioned rolling stock device of: This document does not apply to: --- Mine railways in mines; --- Railway lifting devices, mobile platforms and similar transport systems; ---cableway; ---Temporary facilities: This document does not address the requirements of ground installations for protection from vehicle potentials:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 4208-2017 Enclosure Protection Level (IP Code) (IEC 60529:2013, IDT) GB/T 13870:1 Effects of Current on Humans and Livestock Part 1: General Part (GB/T 13870:1-2008, IEC /T S60479-1:2005, IDT) GB/T 16895:21-2020 Low-Voltage Electrical Installations Part 4-41: Safety Protection Electric Shock Protection (IEC 60364-4-41: 2017, IDT) Note: There is no technical difference between the quoted content of GB/T 16895:21-2020 and the content of IEC 60364-4-41:2005: GB/T 17045-2020 General Parts of Electric Shock Protective Devices and Equipment (IEC 61140:2016, IDT) GB/T 18209:1 Machinery and electrical safety instructions, signs and operations - Part 1: Requirements for visual, auditory and tactile signals (GB/T 18209:1-2010,IEC 61310-1:2007,IDT) GB/T 28026:1-2018 Electrical safety, grounding and return of rail transit ground installations - Part 1: Electric shock protection measures (IEC 62128-1:2013, MOD) GB/T 28027 Rail transit power supply system and rolling stock operation matching (GB/T 28027-2011, IEC 62313:2009, MOD) GB/T 32350:1 Rail Transit Insulation Coordination Part 1: Basic Requirements Clearances and Creepage Distances for Electrical and Electronic Equipment Off (GB/T 32350:1-2015, IEC 62497-1:2010, MOD) 3 Terms, Definitions and Abbreviations 3:1 Terms and Definitions The following terms and definitions apply to this document: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 21414-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 21414-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 21414-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 21414-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 21414-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 21414-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.