Nothing stops a direct hit. It will blow up everything that gets in its way. You are probably seeing induced surges from nearby strikes.
Fiber to the top. Surge suppressors on the DC conductors. From: Paul McCall Sent: Monday, July 24, 2017 11:20 AM To: [email protected] Subject: [AFMUG] Tower Top Grounding discussion We have two 500ft towers that get hit a bunch, and a water tank that gets the same treatment from mother nature. Anybody doing full isolation of all their antennas, equipment etc. at the top of the tower and then running your own ground down the tower? 1.. Wondering what materials people are using to isolate their mounts? What is sufficient? Would the rubber from a thick radiator hose be enough to keep the lightning from coming through? Double thicknesses? One consultant recommended starboard, but I am not sure how I will craft that into a work piece that would mold around a tower leg and be able to grip it. 2.. What size wire should be going down the tower to bond to my tower / electrical ground? I am assuming it should be insulated but is normal THHN jacketing enough to have it truly isolate from something jumping over or does it have be in conduit. Paul Paul McCall, President PDMNet, Inc. / Florida Broadband, Inc. 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800 [email protected] www.pdmnet.com www.floridabroadband.com
