Transmission Structures

Introduction to Transmission Structures Identify and describe the two main types of metal structures used on transmission lines. Describe three types of structure configurations and explain when each type is typically used. Explain what a right-of-way is. Identify several considerations for transmission structure design. Concrete Foundations Describe typical steps for preparing a job site for the installations of a concrete foundation. Describe basic steps for constructing and installing a concrete foundation. Identify the basic parts of a grillage foundation. Describe the basic tasks involved in assembling and installing grillage foundations. Lattice Tower Erection Describe the basic equipment and tasks commonly used to assemble and erect a lattice tower using a gin pole. Describe the basic equipment and tasks commonly used to assemble and erect a lattice tower using one or more cranes. Tubular Steel Pole Erection Identify several common configurations of tubular steel pole structures. Explain how tubular steel poles can be assembled and erected using two basic pole section designs. Structure Erection Using a Helicopter State two reasons for assembling a structure at a remote location. Describe in general terms how a transmission structure is installed using multiple locations and a helicopter.