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IEEE 1627-2019

$37.92

IEEE Standard for Transient Overvoltage Protection of DC Electrification Systems by Application of DC Surge Arresters

Published By Publication Date Number of Pages
IEEE 2019 50
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New IEEE Standard – Active. The design and application of dc surge arresters to protect dc electrification system from transient overvoltage caused by lightning and switching surges is the purpose of this standard. Lightning surges can cause high energy transient overvoltages by direct or indirect coupling with a dc electrification system. Transient overvoltage protection from lightning and switching surges of various dc transit electrification systems can be achieved by the application of metal-oxide varistor (MOV) gapless-surge arresters. The application of surge arresters to running rails in areas where lightning activity is severe requires special study of protection coordination with rail-ground shorting devices [also called voltage-limiting devices (VLDs)] and review of track circuits applied at the transit system. Such study and criteria of selecting VLDs is not included in this standard. However, a surge arrester applied to running rails in higher keraunic areas has been included and requires coordination with both the VLD devices and track circuits applied in the transit system. Many modern light- and heavy-rail transit projects use VLDs, although their application can be avoided by implementing other design measures, such as insulated platforms, or by simply coating the vehicle surface with some special insulation. The purpose of installing VLDs at dc transit projects is to enhance the safety of personnel from the touch potential (rail-ground voltage) on the train vehicle surface. No industry standard on VLDs exists today in North America. Only IEC EN 50526-2 covers VLD.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 1627™-2019 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
7 Participants
9 Introduction
12 Contents
13 1. Overview
1.1 Scope
1.2 Purpose
1.3 Contents
14 2. Normative references
15 3. Definitions, acronyms, and abbreviations
3.1 Definitions
17 3.2 Acronyms and abbreviations
4. Transient surges
18 4.1 Lightning and switching surges
19 4.2 Surge characteristics—Propagation
20 4.3 Magnetic stored energy of surge
21 5. Surge environment—DC transit electrification system
24 5.1 DC surge arrester test data and energy capability
27 5.2 DC surge arrester application
28 5.3 DC surge arrester MCOV rating for dc transit electrification systems
5.4 DC surge arrester voltage—Margin of protection
29 5.5 DC surge arrester energy discharge capability
30 5.6 DC surge arrester application analysis calculation
31 6. Lightning stroke terminology
32 6.1 Lightning stroke—OCS components flashover
33 6.2 Lightning stroke magnitude
34 6.3 Lightning stroke induced overvoltage
6.4 Lightning stroke surge energy
35 6.5 Arrester discharge energy
7. Lightning stroke to an OCS
39 7.1 Lightning strikes the OCS ahead of the supplementary cable connections
40 7.2 Lightning hits the OCS within the supplementary cable connections zone
7.3 Lightning surge propagation discussion for supplementary feeder cable
41 8. Grounding and bonding
42 9. DC surge arresters
9.1 Application criteria and other considerations
45 9.2 Surge arrester rating
46 10. DC surge arrester service requirements
11. DC surge arrester assembly and testing
11.1 Design tests
47 11.2 In service (field) tests
48 Annex A (informative) Bibliography
50 Back cover
IEEE 1627-2019
$37.92