Guying of Poles

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Control and protective devices

Intermediate Engineering

Laying Out of Pole Lines

Guying of Poles

As poles must be strengthened sufficiently to carry heavy conductors and pole-mounted equipment, the

Figure 2-7.Anchors.

proper anchoring and guying of pole lines is essential. These precautions also help to support poles that are set in sandy or swampy ground, and they counteract added strains caused by the elements, such as high winds, snow, and ice.

Various types of guy anchors have been developed to hold imposed loads securely in varying soil conditions. Some of these types are shown in figure 2-7. There are many different uses of guys, some of which are shown in figures 2-8 through 2-13. Each usage has its own terminology as follows:

1. DOWN GUYS. The most common type of guy is the down guy. With this type of guy, the wire is run from the top of the pole to an anchor in the ground. Some common uses of the down guys areas follows:

a. SIDE GUY. A side guy (fig. 2-8) is used to reinforce a pole line against an unbalanced side pull of the conductors. Such pulls are developed at curves, angles, or sharp turns in the line.

Figure 2-8.Side guy.

Figure 2-9.Terminal down guy.

Figure 2-10.Corner guy.

b. TERMINAL DOWN GUY. As shown in figure 2-9, this type of guy is usually placed at the end of a pole line to counterbalance the pull of the line conductors. The terminal down guy can, at times, be called a corner guy.

c. CORNER GUY. The corner guy (fig. 2-10) is used where there is a directional change in the line.

d. LINE GUY. A line guy is installed in a straight pole line where an unusual stress or strain comes from farther down the pole line or where there is a chance the conductors may break and cause excessive damage. Many times, line guys are installed in pairs, as shown in figure 2-11. A line guy is often called a storm guy.

Figure 2-11.Line guy, or storm guy.

Figure 2-12.Head guy.

2. HEAD GUY. A head guy runs from one pole to the next pole down the line. It is used to transfer the load supported by one line pole to another, as shown in figure 2-12.

3. PUSH BRACE. A push brace (fig. 2- 13) is used where a pole cannot be guyed and is too small to be self-sustaining. It is used in marshy or sandy soils where anchors cannot be firmly embedded. The upper end of the brace is bolted to the pole.

Figure 2-13.Push brace.