IEEE C62 55A CORR 1-2017 en Guide for Surge Protection of DC Power Feeds to Remote Radio Heads Corrigendum 1.pdf

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1、IEEE C62.55aTM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads 1 Copyright 2018 IEEE. All rights reserved. This is an unapproved IEEE Standards Draft, subject to change. Guide for Surge Protection of DC Power Feeds to Remote Radio Heads Corrigendum 1 Sponsor Surge Protective

2、Devices Committee of the IEEE Power and Energy Society Copyright 2018 by The Institute of Electrical and Electronics Engineers, Inc. Three Park Avenue New York, New York 10016-5997, USA All rights reserved. This document is an unapproved draft of a proposed IEEE Standard. As such, this document is s

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7、scataway, NJ 08854, USA IEEE C62a.55TM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads 2 Copyright 2018 IEEE. All rights reserved. This is an unapproved IEEE Standards Draft, subject to change. Abstract: The waveform of currents likely to exist on dc feeds to equipment locate

8、d at the tops of towers due to a lightning strike, and the consequences of that waveform for protector design, are described in this guide. Keywords: IEEE C62.55, lightning, powering feed, protection, remote rad io head, RRH, SPD, surge protective device, surge waveform, towers xThe Institute of Ele

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39、t of such rights, is entirely their own responsibility. Further information may be obtained from the IEEE Standards Association.IEEE C62a.55TM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads 6 Copyright 2018 IEEE. All rights reserved. This is an unapproved IEEE Standards Draf

40、t, subject to change. 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 Circuit Surge Protective Devices Working Group had the following membership: Albert Martin, Chair Ernie Gallo, Vice Chair Tim Ardsley R

41、obert Ashton Frank Basciano Vincent Crevenant Joe Degregoria Leonard Drewes Bogey Klobassa Peter Kobsa Michael Maytum Wolfgang Oertel Alan Rebeck Thomas Tran Bill Travis 1 The following members of the balloting committee voted on this. Balloters may have voted for approval, disapproval, or abstentio

42、n. 3 4 (to be supplied by IEEE) 5 6 Balloter1 7 Balloter2 8 Balloter3 9 Balloter4 10 Balloter5 11 Balloter6 12 Balloter7 13 Balloter8 14 Balloter9 15 16 17 When the IEEE-SA Standards Board approved this on , it had the following membership: 19 (to be supplied by IEEE) 20 , Chair 21 , Vice Chair 22 ,

43、 Past Chair 23 , Secretary 24 25 SBMember1 26 SBMember2 27 SBMember3 28 SBMember4 29 SBMember5 30 SBMember6 31 SBMember7 32 SBMember8 33 SBMember9 34 *Member Emeritus 35 36 37 IEEE C62a.55TM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads vii Copyright 2018 IEEE. All rights r

44、eserved. This is an unapproved IEEE Standards Draft, subject to change. Introduction 1 This introduction is not part of IEEE C62.55a-2017, Guide for Surge Protection of DC Power Feeds to Remote 2 Radio Heads. 3 This guide begins by discussing the characteristics of single-stroke lightning that might

45、 strike a tower. The 4 nature of the resulting current on the dc feed is then discussed. Next, consideration is given to lightning 5 flashes having multiple strokes. Finally, guidance on selecting a surge protective device for the dc feed and 6 practical considerations are discussed. 7 8 9 IEEE C62a

46、.55TM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads viii Copyright 2018 IEEE. All rights reserved. This is an unapproved IEEE Standards Draft, subject to change. Contents 1 Participants 2 2 12.1.2 Method of selection when the flash waveform is not known . 2 3 4 IEEE C62.55c

47、TM-2017 Guide for Surge Protection of DC Power Feeds to Remote Radio Heads 1 Copyright 2018 IEEE. All rights reserved. This is an unapproved IEEE Standards Draft, subject to change. Guide for Surge Protection of DC 1 Power Feeds to Remote Radio Heads 2 Corrigendum 1 3 NOTEThe editing instructions co

48、ntained in this Corrigendum define how to merge the material contained therein 4 into the existing base standard and its amendments to form the comprehensive standard. 5 The editing instructions are shown in bold italic. Four editing instructions are used: change, delete, insert, and replace. 6 Chan

49、ge is used to make corrections in existing text or tables. The editing instruction specifies the location of the 7 change and describes what is being changed by using strikethrough (to remove old material) and underscore (to add 8 new material). Delete removes existing material. Insert adds new material without disturbing the existing material. 9 Insertions may require renumbering. If so, renumbering instructions are given in the editing instruction. Replace is used 10 to make changes in figures or equations by removing the existing figure or equation and replac