INSTALLING SECONDARY RACKS Secondary conductors may be strung on crossarms but are usually put on secondary "racks." These racks are made in sizes to accommodate two, three, or four conductors. A secondary rack is mounted on the side of a pole (for a straight run) or on the inside of a pole (for a dead end). A rack is fastened to the pole with lag bolts on a straight line with a through bolt at the top and a lag screw at the bottom, or with through bolts with nuts for a dead end or when a branch line takes off from the main line. A dead-end secondary rack is shown in figure 4-61. Insulators are held to a rack by a rod passing through the insulators and brackets on the rack, as shown in figure 4-61. On a straight line or inside angle, the conductor is run on the inside of the insulator. On an outside angle, it is run on the outside. The conductor is always placed here with strain against the insulator. Figure 4-62 shows rack arrangements at comers and angles.

INSTALLING CONDUCTORS There are various ways of stringing conductors. You may place the wire reels on a truck or on a wire trailer and drive along the right-of-way unreeling the

Figure 4-62.- Rack arrangements at corners and angles.

Figure 4-63.- Wire trailer with nylon rope used to pull conductor through blocks. wire, or you may use the running block or over-the-crossarm methods. Figure 4-63 shows the running block method.