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 |
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 |