| |
Back
Power Line Components | Up
Construction Electrician Basic - Electricity handbook for electricians | Next
Figure 4-3.—Dead-end guy. |
Figure 4-1.—Anchors.
have an ultimate strength equal to, or greater than, that
required by the down-guy assembly. Anchor rods vary
in diameter from 1/2 to 1 1/4 inches and in length from
3 1/2 to 12 feet.
Guy Wire
The wire, or cable, normally used in a down guy is
seven-stranded galvanized steel wire or seven-stranded
alumoweld wire. Alumoweld wire consists of steel wire
strands coated with a layer of aluminum to prevent
corrosion.
Guy wire is used in various sizes with
diameters from 1/8 to 1 3/4 inches.
Guys
A guy is a brace or cable fastened to the pole to
strengthen it and keep it in position. Guys are used
whenever the wires tend to pull the pole out of its
normal position and to sustain the line during the
abnormal loads caused by sleet, wind, and cold. Guys
counteract the unbalanced force imposed on the poles
by dead-ending conductors; by changing conductor
size, types, and tensions; or by angles in the
transmission or distribution line. The guy should be
considered as counteracting the horizontal component
of the force with the pole or supporting structure as a
strut resisting the vertical component of the forces.
DOWN GUY.—A "down guy" consists of a wire
running from the attachment near the top of the pole to
4-3
|
