Wattsun AZ-225 Installation Manual page 37

FIG 3: ALTERNATIVE GROUNDING FOR A TRACKER THAT IS DISTANT FROM THE BATTERY
BANK/POWERCENTER.
The modules, Wattsun Tracker, and mounting pipe are grounded as shown in Figure 1.
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The PV array is ground mounted some distance (perhaps over 30 feet) away from other PV components
•
(inverter, batteries, etc.). The distance is not specified in the NEC.
There are no AC power circuits between the array and the bank/power center.
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There are no conductive paths (electrical or other) such as water pipes, metal fences, communication
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circuits, or telephone circuits between the array and the other structure.
Bond the negative conductor (PV Negative) to the grounding system at both the array and at the
•
inverter/battery/power center location.
Do not run any equipment grounding conductors between the array and at the inverter/battery/power
•
center location.
Use ground rods at the array and at the inverter/battery/power center location.
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WARNING!
If you ground according to FIG 3, you must ground the PV Negative at both the array and at the powercenter. Do
not run any equipment grounding conductors between the array and at the inverter/battery/power center location.
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