Quote:
Originally Posted by Flint Ridge
Static dissipation array - Tower Guy can you shed some more light on the chimney brush concept?
|
The brush should have the thinnest bristles possible. They should be trimmed to a hemispherical shape. A separate insulated ground would run from the brush to the bottom of the tower and then bonded to the tower ground and the wire to the electrical box ground in the house.
Tying all the grounds together is the secret to minimizing damage in the unlikely event of a direct hit. What is more likely is a nearby strike that causes currents in the tower and or ground wire. I once observed a lightning strike about a mile away that caused a 20'-30' discharge off the top of a 750' tower. I was 100' from the tower at the time.