A guy is a brace or cable fastened to the pole to strengthen it and keep it in position. Guys are used wherever the wires tend to pull the pole out of its normal position and to sustain the line during abnormal loads caused by sleet, wind, and cold. Guys counteract the unbalanced forces imposed on the poles by dead-ending conductors; changing conductor sizes, types, and tensions; or angles in the transmission or distribution line. The guy should be considered as counteracting the horizontal component of the forces with the pole or supporting structure as a strut resisting the vertical component of the forces.

Anchor or Down Guys. An anchor or down guy consists of a wire running from the attachment near the top of the pole to a rod and anchor installed in the ground (Fig. 12.1). This type of guy is preferable if field conditions permit its installation since it transfers the unbalanced force on a pole or structure to the earth without intermediate supports.

An anchor or down guy used at the ends of pole lines in order to counterbalance the pull of the line conductors is called a terminal guy (Fig. 12.2). All 90 corners in the line are considered as dead ends. They should be guyed the same as terminal poles except that there will be two guys, one for the pull of the conductors in each direction (Fig. 12.3).

Where the line makes an angle, a side pull is...