Aerial Fiber Construction is the process by which fiber optic cable is installed along a line of utility poles. In placing aerial cable, a support strand is needed in addition to the cable. Some aerial fibers are pre-lashed to a support strand, making placement less complex. Strands can also be placed along the route first, with fiber pulled and lashed to the support strand later. Lashing is the process of securing the fiber cable to the support strand via lashing wire. When placing cable on a pole, the required spacing distance varies depending on the type of cable or equipment.