IEEE-776-1992-R2008.pdf
《IEEE-776-1992-R2008.pdf》由会员分享,可在线阅读,更多相关《IEEE-776-1992-R2008.pdf(59页珍藏版)》请在三一文库上搜索。
1、Copyright 1998 IEEE All Rights Reserved1 IEEE Std 776-1992 (R2008) (Revision of IEEE Std 776-1987) IEEE Recommended Practice for Inductive Coordination of Electric Supply and Communication Lines Sponsor Transmission Systems Committee of the IEEE Communications Society Reaffirmed September 25, 2008 A
2、pproved December 3, 1992 IEEE Standards Board Abstract: The inductive environment that exists in the vicinity of electric power and wire-line telecommunications systems and the interfering effects that may be produced are addressed. An interface that permits either party, without need to involve the
3、 other, to verify the induction at the interface by use of a probe wire is presented. This recommended practice does not apply to railway signal circuits. Keywords: communication lines, electric supply, inductive coordination The Institute of Electrical and Electronics Engineers, Inc. 345 East 47th
4、Street, New York, NY 10017-2394, USA Copyright 1993 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 1993. Printed in the United States of America ISBN 1-55937-281-8 No part of this publication may be reproduced in any form, in an electronic retrieval sys
5、tem or otherwise, without the prior written permission of the publisher. Authorized licensed use limited to: IHS Stephanie Dejesus. Downloaded on February 17, 2009 at 15:46 from IEEE Xplore. Restrictions apply. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS und
6、er license with IEEELicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 04:20:13 MDTNo reproduction or networking permitted without license from IHS -,-,- IEEE Standards documents are developed within the Technical Committees of the IEEE Societies and the Standards Coordinating Committees o
7、f the IEEE Standards Board. Members of the committees serve voluntarily and without compensation. They are not necessarily members of the Institute. The standards developed within IEEE represent a consensus of the broad expertise on the subject within the Institute as well as those activities outsid
8、e of IEEE that have expressed an interest in partici- pating in the development of the standard. Use of an IEEE Standard is wholly voluntary. The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchase, mar- ket, or provide other goods and servic
9、es related to the scope of the IEEE Standard. Furthermore, the viewpoint expressed at the time a standard is approved and issued is subject to change brought about through developments in the state of the art and com- ments received from users of the standard. Every IEEE Standard is subjected to rev
10、iew at least every ve years for revision or reafrmation. When a document is more than ve years old and has not been reafrmed, it is reasonable to conclude that its contents, although still of some value, do not wholly reect the present state of the art. Users are cautioned to check to determine that
11、 they have the latest edition of any IEEE Standard. Comments for revision of IEEE Standards are welcome from any interested party, regardless of membership afliation with IEEE. Suggestions for changes in docu- ments should be in the form of a proposed change of text, together with appropriate suppor
12、ting comments. Interpretations: Occasionally questions may arise regarding the meaning of portions of standards as they relate to specic applications. When the need for interpretations is brought to the attention of IEEE, the Institute will initiate action to prepare appro- priate responses. Since I
13、EEE Standards represent a consensus of all concerned inter- ests, it is important to ensure that any interpretation has also received the concurrence of a balance of interests. For this reason IEEE and the members of its technical com- mittees are not able to provide an instant response to interpret
14、ation requests except in those cases where the matter has previously received formal consideration. Comments on standards and requests for interpretations should be addressed to: Secretary, IEEE Standards Board 445 Hoes Lane P.O. Box 1331 Piscataway, NJ 08855-1331 USA IEEE Standards documents are ad
15、opted by the Institute of Electrical and Electronics Engineers without regard to whether their adoption may involve patents on articles, materials, or processes. Such adoption does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the standa
16、rds documents. Authorized licensed use limited to: IEEE Standards Staff. Downloaded on October 24, 2008 at 12:18 from IEEE Xplore. Restrictions apply.Authorized licensed use limited to: IHS Stephanie Dejesus. Downloaded on February 17, 2009 at 15:46 from IEEE Xplore. Restrictions apply. Copyright Th
17、e Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=HP Monitoring/1111111164 Not for Resale, 04/07/2009 04:20:13 MDTNo reproduction or networking permitted without license from IHS -,-,- iii Introduction (This introduction is not a part of IEEE S
18、td 776-1992, IEEE Recommended Practice for Inductive Coordination of Electric Supply and Communication Lines.) During the ve years since IEEE Std 776-1987 was published, the guide has provided a useful tool for those faced with inductive coordination problems. Questions have arisen about the stringe
19、nt harmonic distribution used on the probe-wire interface described in table 2. This version of IEEE Std 776 provides exibility in the use of harmonic distributions in table 2 to match the variety of existing environments and conditions. The gen- eral section was also rewritten in an effort to make
20、it more understandable. Other sections have also been improved editorially. These efforts and contributions were made by Dick Nelson, Harold Held, Bill McCoy, Charlie Nelson, Chrys Chrysanthou, and David Boneau. Since the publication of joint reports of the National Electric Light Association and th
21、e Bell System during and following the 1920s, the joint responsibility of inductive coordination between power and telecommunication companies has generally been accepted. However, the need has long been recognized for one document that denes the components of interference, provides specic procedure
22、s to predict levels of interference, provides specic methods to demonstrate cause and effect relationships, and denes a threshold for initiating coordina- tion to mitigate interference. The Longitudinal Induction Working Group, which is under the direction of the Inductive Coordination and Electrica
23、l Protection (ICEP) Subcommittee of the Transmission Systems Commit- tee of the Communications Society, has struggled to produce a fair and equitable approach to ll this need under the leadership of three different chairs. These chairs were, rst, Harold C. Held, retired from Illinois Bell Tele- phon
24、e Company; second, the late James R. Wilson, formerly afliated with South Central Bell Telephone Com- pany; and third, David Lee Boneau of Southwestern Bell Telephone Company. Major contributions to the document were made by James R. Wilson, George Benz of Southern New England Telephone Company, and
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- IEEE 776 1992 R2008
链接地址:https://www.31doc.com/p-3770416.html