Overhead Distribution Lines:Design and Applications

Overhead Distribution Lines:Design and Applications

架空配电线路：设计与应用
基础力学

售价：

发货周期：预计3-5周发货

作者

Lawrence Slavin

出版社

Wiley

出版时间

2021年05月28日

装帧

精装

ＩＳＢＮ

9781119699132

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页码

144

语种

英文

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暂无评分

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A general overview of the use of utility distribution poles, including for electric supply and communications applications Overhead Distribution Lines: Design and Applications provides information on the design and use of power and communication distribution lines. An excellent resource for those in the power and communication utilities industry, this book presents information on the physical characteristics of utility poles, overhead supply and communication cables, installation practices, joint-usage issues, and safety rules, including the National Electrical Safety Code (NESC), California-specific rules, and others. It describes how to select the proper poles for specific applications. The especially valuable final chapter provides examples showing how it all works in practice, providing a background allowing more effective use of related industry software. Rather than delving into detailed design and installation techniques, this book serves as an overview for engineers and non-technical audiences alike. At the same time, it serves as a compendium of technical information not readily available elsewhere. This unique book: Offers an overview of pole structures, pole installation and maintenance, wires and cables, and cable installation and maintenance-with examples Provides information on national standards documents such as the National Electrical Safety Code (NESC), ANSI O5.1, California General Order 95, and more Explores the "sag-tension" relationship between wires and poles Includes appendices that cover properties of messenger strands, wireless attachments, solution of equations to determine sag, under uniform and point loads Overhead Distribution Lines: Design and Applications offers readers an understanding of the basic principles and various issues related to electric supply and communications distribution lines. It is a valuable resource for utility engineers, as well as those without a technical background.

About the author Preface Dedication Acknowledgements Chapter 1 Introduction 1.1 Scope 1.2 Background Chapter 2 Pole Structures 2.1 General 2.2 Wood Pole Strength 2.3 Loads 2.4 Embedment Depth 2.5 Guying 2.6 Column Buckling 2.7 Grounding and Bonding Chapter 3 Pole Installation and Maintenance 3.1 Pole Placement 3.2 Guys and Anchor 3.3 Pole Maintenance Chapter 4 Wires, Conductors and Cables 4.1 Categories 4.2 Messenger Wire/Strand 4.3 Electric Supply (Power) Cables 4.4 Communications Cables 4.5 Wireless Attachments Chapter 5 Cable Installation 5.1 Conductor and Cable Placement 5.2 Lashing Operation 5.3 Overlashing Chapter 6 Nesc (R) Requirements (Strength & Loading) 6.1 National Electrical Safety Code (Nesc) 6.2 Loading Requirements 6.3 Strength Requirements 6.4 Wire Tensions 6.5 Guyed Poles 6.6 Extreme Wind Loads (\"60 Ft Limit\") 6.7 Allowable Deterioration 6.8 Overlashed Cables 6.9 Software Tools And Pole Loading Analysis Chapter 7 Nesc (R) Requirements (Clearances) 7.1 Clearances 7.2 Clearance Zones 7.3 Clearances Above Surfaces and Buildings 7.4 Clearances Between Wires 7.5 Overlashed Cables Chapter 8 Principles Of Wire Sag 8.1 Catenary 8.2 Initial and Final Sag 8.3 Sag - Tension Relationship 8.4 Determining Change in Sag (and Tension) 8.5 Ruling Span 8.6 Point Load Chapter 9 General Order 95 (California) 9.1 General Order 95 (Go 95) 9.2 Loading Requirements 9.3 Strength Requirements 9.4 Clearances Chapter 10 Examples 10.1 Purpose 10.2 Tangent Line 10.3 Line Angle 10.4 Line Angle - Buckling Consideration 10.5 Additional Attachment 10.6 Summary Glossary References Appendix A Properties Of Messenger Strands Appendix B Wireless Attachments Appendix C Extreme Wind And Extreme Ice Loadings Appendix D Solution Of Cubic Equation Appendix E Point Load E.1 Parabolic Model E.2 Intersecting Straight Lines Model Index

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