Guidelines For Electrical Transmission Line Structural Loading

Prepared by the Task Committee on Electrical Transmission Line Structural Loading of the Electrical Transmission Structures Committee of the Special Design Issues Technical Administrative Committee of the Structural Engineering Institute of ASCEFully revised and updated, Guidelines for Electrical Transmission Line Structural Loading, Fourth Edition, MOP 74, provides the most current and relevant loading concepts and applications specific to transmission line design. A valuable resource for the development of a loading philosophy for electrical transmission structures, the information presented can be applied to an individual project or at a regional level. Key topics addressed in this manual areUniform procedures and definitions used in the industry for the calculation of loads,Design procedures addressing uniform levels of reliability for transmission lines,Up-to-date techniques for quantifying weather-related loads,Procedures for calculating design loads and determining their corresponding load factors, Updated techniques for quantifying wire system and other non-weather-related loads,Failure containment philosophy,andPractical examples providing more detail on the application of load recommendations. This Manual of Practice will be an important guide to engineers involved in electrical utility and structural engineering.

The understanding of transmission line structural loads continues to improve as a result of research, testing, and field experience. Guidelines for Electrical Transmission Line Structural Loading, Third Edition provides the most relevant and up-to-date information related to structural line loading. Updated and revised, this edition covers weather-related loads, relative reliability-based design, and loading specifics applied to prevent cascading types of failures, as well as loads to protect against damage and injury during construction and maintenance. This manual is intended to be a resource that can be readily absorbed into a loading policy. It will be valuable to engineers involved in utility, electrical, and structural engineering.

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.

This collection contains 46 papers discussing electrical transmission line engineering presented at the Electrical Transmission in a New Age Conference, held in Omaha, Nebraska, on September 9-12, 2002.

MOP 141 provides a vital overview on the design and use of wood poles for overhead utility line structures using sound engineering practices.

MOP 113 provides a comprehensive resource for the structural design of outdoor electrical substation structures.