When securing PV wires, never run cable ties through a module’s razor-sharp mounting holes. This is one of the most common causes of premature failure on solar installations. In addition to being a problem on stationary panels, single-axis trackers will quickly sever a cable tie, regardless of material. There is a “right” part for every job, including edge clips, fir trees and arrowhead fasteners, among others, designed for solar applications.
Major considerations for correct module-level wire management: