Page 9 of 23 Guide for Installation and use of Southwire C
7
Overhead Conductor
Figure 9: Payoff and bullwheel setup.
Paying off straight from the reel will help to avoid scuffing of the conductor against adjacent
conductor turns or against the reel flange. Proper adjustment of the fairlead roller guides is
necessary to prevent scuffing of the conductor as it reeves through the bullwheel. Reels are
designed only to transport the conductor; they are not designed for use as tensioning devices.
Minimal braking tension should be applied to the payoff to prevent damage to the conductor or
reel. Only enough braking tension should be applied to the reel to keep the conductor taut
between the reel payoff and tensioner and to prevent the reel from over-rotating when the
pulling operation stops. Back tension should not exceed 1000 lb (4.4 kN). If too much back
tension is applied, the conductor on the outer layer can “pull down” into the underlying layers,
as in Figure 10.
Figure 10: Conductor pulldown.
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