This book covers structural and foundation systems used in high-voltage transmission lines, conductors, insulators, hardware and component assembly. In most developing countries, the term “transmission structures” usually means lattice steel towers. The term actually includes a vast range of structural systems and configurations of various materials such as wood, steel, concrete and composites. This book discusses those systems along with associated topics such as structure functions and configurations, load cases for design, analysis techniques, structure and foundation modeling, design deliverables and latest advances in the field. In the foundations section, theories related to direct embedment, drilled shaf ts, spread foundations and anchors are discussed in detail. Featuring worked out design problems for students, the book is aimed at students, practicing engineers, researchers and academics. It contains beneficial information for those involved in the design and maintenance of transmission line structures and foundations. For those in academia, it will be an adequate text-book / design guide for graduate-level courses on the topic. Engineers and managers at utilities and electrical corporations will find the book a useful reference at work.
Line design is a very specialized field involving spatial constraints, high performance conductors, lightning protection, cable vibrations, digital terrain surveying, Fiber optic communication wires along with some exciting software developments over the past two decades. In the West, billions of dollars are being invested on building new lines and the so-called “Smart Grid”. This book will cover electrical and mechanical characteristics associated with high-voltage transmission lines, selection of conductors, line layout, thermal ratings, plan and profile drawing among other things. Structures are only one component of a transmission line; as such, this book will form a companion volume to the book on structures and foundations. The book is aimed at students, practicing engineers, technicians and linemen, researchers and academics. It will contain beneficial information to those involved in the management and maintenance of high voltage transmission lines and associated component systems. For those in academia, it will be an adequate textbook for (under)graduate courses centering on the topic. Asset managers at utilities and state-level electrical corporations should find the book a useful reference work during system and line maintenance operations.
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