Wattsun AZ-225 Installation Manual page 35

FIG 1: GROUNDING THE MODULES, TRACKER FRAME, DRIVE AND MOUNTING PIPE
The array equipment-grounding conductors, for the modules, tracker frame, drive and mounting-pipe, should
terminate at one location—probably a grounding terminal strip in the junction/combiner box. Then, there should be
a conductor from this point to the grounding electrode (ground rod).
The steps are:
The frame of every module is interconnected with grounding wire.
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The module grounding wire ties into the tracker frame on the torque tube or struts.
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A flexible loop of grounding wire continues from the torque tube to the base of the drive.
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The ground wire continues to the mounting pipe or combiner box that is bonded to the pipe.
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The ground wire goes down the pole and is bonded to an 8-foot copper ground rod.
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The ground rod is set in the earth outside of the concrete foundation of the pipe.
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Do not rely on the mounting pipe to act as a ground rod.
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