ABSTRACT
Conductor sag and tension analysis is an important consideration in OH distribution line design as well as in OH transmission line design. The quality and continuity of electric service supplied over a line (regardless of whether it is a distribution, a subtransmission, or a transmission line) depend largely on whether the conductors have been properly installed. Thus, the designing engineer must determine in advance the amount of sag and tension to be given to the wires or cables of a particular line at a given temperature. In order to specify the tension to be used in stringing the line conductors, the values of sag and tension for winter and summer conditions must be known. Tension in the conductors contributes to the mechanical load on structures at angles in the line and at dead ends. Excessive tension may cause mechanical failure of the conductor itself.
