IEEE C62.55-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads.pdf

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1、IEEE Guide for Surge Protection of DC Power Feeds to Remote Radio Heads IEEE Std C62.55-2017 IEEE Power and Energy Society Sponsored by the Surge Protective Devices Committee IEEE 3 Park Avenue New York, NY 10016-5997 USAIEEE Std C62.55-2017 IEEE Guide for Surge Protection of DC Power Feeds to Remot

2、e Radio Heads Sponsor Surge Protective Devices Committee of the IEEE Power and Energy Society Approved 14 February 2017 IEEE-SA Standards BoardAbstract: The waveform of currents likely to exist on dc feeds to equipment located at the tops of towers due to a lightning strike, and the consequences of

3、that waveform for protector design, are described in this guide. Keywords: IEEE C62.55, lightning, powering feed, protection, remote radio head, RRH, SPD, surge protective device, surge waveform, towers The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-599

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33、, is entirely their own responsibility. Further information may be obtained from the IEEE Standards Association.6 Copyright 2017 IEEE. All rights reserved. Participants At the time this guide was submitted to the IEEE-SA Standards Board for approval, the 3.6.7 LV Data, Communications and Signaling C

34、ircuit Surge Protective Devices Working Group had the following membership: Albert Martin, Chair Ernie Gallo, Vice Chair Tim Ardsley Robert Ashton Frank Basciano Vincent Crevenant Joe Degregoria Leonard Drewes Bogey Klobassa Peter Kobsa Michael Maytum Wolfgang Oertel Alan Rebeck Thomas Tran Bill Tra

35、vis The following members of the individual balloting committee voted on this guide. Balloters may have voted for approval, disapproval, or abstention. Robert Ashton Frank Basciano William Byrd Gary Donner Randall Groves Phillip Havens Raymond Hill Werner Hoelzl Ronald Hotchkiss Albert Livshitz Albe

36、rt Martin Michael Maytum Michael Newman Wolfgang Oertel Lorraine Padden Percy Pool Thomas Rozek Bartien Sayogo Jeremy Smith Gary Smullin David Tepen John Vergis Matthew Wakeham Jian Yu When the IEEE-SA Standards Board approved this guide on 14 February 2017, it had the following membership: Jean-Phi

37、lippe Faure, Chair Vacant Position, Vice Chair John D. Kulick, Past Chair Konstantinos Karachalios, Secretary Chuck Adams Masayuki Ariyoshi Ted Burse Stephen Dukes Doug Edwards J. Travis Griffith Gary Hoffman Michael Janezic Joseph L. Koepfinger* Thomas Koshy Kevin Lu Daleep Mohla Damir Novosel Rona

38、ld C. Petersen Annette D. Reilly Robby Robson Dorothy Stanley Adrian Stephens Mehmet Ulema Phil Wennblom Howard Wolfman Yu Yuan *Member Emeritus7 Copyright 2017 IEEE. All rights reserved. Introduction This introduction is not part of IEEE Std C62.55-2017, IEEE Guide for Surge Protection of DC Power

39、Feeds to Remote Radio Heads. This guide begins by discussing the characteristics of single-stroke lightning that might strike a tower. The nature of the resulting current on the dc feed is then discussed. Next, consideration is given to lightning flashes having multiple strokes. Finally, guidance on

40、 selecting a surge protective device for the dc feed and practical considerations are discussed. Acknowledgments Figure 11, Figure 12, and Figure 13 reprinted with permission from Michael J Maytum, 8/20 burst MOV ener gy , 2014.8 Copyright 2017 IEEE. All rights reserved. Contents 1. Overview . 9 1.1

41、 Scope 9 2. Normative references 9 3. Definitions, acronyms, and abbreviations . 9 3.1 Definitions 9 3.2 Acronyms and abbreviations 10 4. The problem 10 5. Lightning characteristics . 10 5.1 General . 10 5.2 Type (a) . 10 5.3 Type (c) . 11 5.4 Types (b) and (d) . 11 6. The meanings of “short” and “t

42、all” 12 6.1 Method of determination 12 6.2 Correction for towers on mountain tops 13 7. The surge on a dc feed . 14 8. Examples of how the model can be used . 18 9. The issue of multiple strokes and continuing current . 20 10. Guidance for selecting MOV SPDs . 23 10.1 Repeated standard tests at elev

43、ated temperature . 23 10.2 Single high-energy surge 24 10.3 Multi-surge tests in standards . 24 10.4 Weighing instead of testing . 24 11. Energy delivered to an MOV . 25 11.1 Energy from strokes 25 11.2 Continuing current 26 12. Practical considerations . 27 12.1 MOVs . 27 12.2 Silicon-based voltage-clamping devices 30 13. Comments . 32 13.1 The lightning flash 32 13.2 The protector itself 32 13.3 Survivability . 32 Annex A (informative) Multi-surge burst parameters of silicon voltage-clamping devices 33 Annex B (informative) Bibliography . 36

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