GB/T 37317-2019 English PDF

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GB/T 37317-2019: Railway applications - Guide for lightning protection of DC overhead contact system
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37317-2019	439	Add to Cart	4 days	Railway applications - Guide for lightning protection of DC overhead contact system	Valid

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Basic data

Standard ID: GB/T 37317-2019 (GB/T37317-2019)
Description (Translated English): Railway applications - Guide for lightning protection of DC overhead contact system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: S35
Classification of International Standard: 29.280
Word Count Estimation: 22,286
Date of Issue: 2019-03-25
Date of Implementation: 2019-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37317-2019: Railway applications - Guide for lightning protection of DC overhead contact system

---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--Guide for lightning protection of DC overhead contact system ICS 29.280 S35 National Standards of People's Republic of China Rail Guide for lightning protection of overhead overhead contact networks Published on.2019-03-25 2019-10-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Lightning activity characterization 3 5 Lightning protection principle 3 6 Lightning protection measures 4 7 Lightning protection measures implementation 5 Appendix A (informative appendix) Schematic diagram of installation of overhead earth line and out-of-band series gap metal oxide arrester 8 Appendix B (informative appendix) Calculation results of lightning strike rate after overhead contact network using lightning protection measures for overhead ground lines Appendix C (informative) Working principle and main technical parameters of lightning surge grounding device 12 Appendix D (informative) Typical structure type and main technical parameters of out-of-band series gap metal oxide arresters Reference 17

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This standard was proposed by the National Railway Administration. This standard is supported by the National Traction Electrical Equipment and Systems Standardization Technical Committee (SAC/TC278) and the National Lightning Protection Standardization Technology. The committee (SAC/TC258) is under the jurisdiction. This standard is drafted by. Tianjin China Railway Electrification Design and Research Institute Co., Ltd., China Electric Power Research Institute Co., Ltd. Participated in the drafting of this standard. Beijing Electric Power Economic and Technological Research Institute, State Grid Electric Power Research Institute Wuhan Nanrui Co., Ltd., Guang State Subway Group Co., Ltd. The main drafters of this standard. Wang Litian, Chen Weijiang, Shen Haibin, Zhao Haijun, Bian Kai, Xiang Nianwen, Huang Deliang, Wang Yanli. Rail Guide for lightning protection of overhead overhead contact networks

1 Scope

This standard stipulates the lightning protection principle, protective measures and implementation plan for overhead contact network of urban rail transit. This standard is applicable to urban rail transit ground and elevated section overhead contact nets with DC 1500V traction power supply, using DC Ground and overhead section overhead contact nets with traction power of 750V and below can be implemented by reference.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 11032 AC gapless metal oxide arrester GB/T 25890.5 Rail switch ground equipment - Part 5. DC arresters and low-voltage limiters GB/T 32520 AC 1OV or more with external series gap metal oxide arrester (EGLA) for overhead transmission and distribution lines GB/T 50064-2014 AC electrical equipment overvoltage protection and insulation coordination design specifications

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Cloud flash intra-clouddischarge The phenomenon of atmospheric discharge occurring inside the same cloud and between different clouds. 3.2 Ground flash cloud-to-groundlightningflash Atmospheric discharge between the cloud and the earth or ground. Note. Rewrite GB/T 21714.1-2015, definition 3.1. 3.3 Lightning strikening A single air-to-cloud discharge. Note. Rewrite GB/T 21714.1-2015, definition 3.4. 3.4 Lightning current The current flowing through the lightning strike point. [GB/T 21714.1-2015, definition 3.9] 3.5 Thunderstorm day thunderstormday There are thunder days in a certain area in a year. Just hear more than one thunder in a day or see more than one lightning, even a mine A stormy day. ......

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