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(9) Is lightning protection necessary?
You should ground your wind turbine. Proper grounding (illustrated below)
protects individuals to individuals and equipment by eliminating the
possibility of dangerous voltage. Remember a steel tower is a conduit for
lightning. Every wind turbine and turbine tower needs to be grounded at the
tower base even though the system may be grounded at the battery bank.
Grounding the tower at its base may help prevent shocks to persons touching
the tower due to lightning or electrical faults. Please take the time to review
the National Electrical Code (NEC) and local building and zoning regulations
for complete requirements. Even in “Off-Grid Systems” there are multiple
ways for tower grounding, the most common method is a copper-clad steel
electrode(s) driven into the soil. Please view the following grounding diagram.
27
