Every cable that comes into the shack goes through an appropriate lightning suppressor mounted on a Polyphaser SPG (single point ground) copper plate and connected with a flat copper strap AND a 3-0 cable (left over from installing the electrical service to the house) to 4 eight foot ground rods with Cadweld Oneshots and spaced 9 ft apart. That includes the feedline, rotor cable, SteppIR cable, and 120VAC service going out to tower one. I have not yet attached the remote antenna switch control lines to a surge suppressor, I may just buy some heavy duty 15 or 20 volt MOV’s.
For the rotor I am using a Polyphaser surge suppressor made for that purpose. I use Polyphaser surge suppressors for the feed lines and ICE for the SteppIR control cable and the 120VAC service. I also disconnect everything when there is lightning in the area or I am leaving for the day. I have three 8 foot ground rods connected to each leg of my tower, connected the same way. The shield of the feed lines are connected to the tower at the top, and should be done at the bottom of the tower as well. I have the kits to do it, just never actually got around to it. That is on my todo list. I will be installing two eight foot ground rods to each leg of the new vertical (two in already). Around here, ground rods are easy to install, and I can put one in the ground in less than ten minutes. I bought the Polyphaser SPG plate on eBay for about $50. I am also considering adding additional surge suppressors and grounding at the junction box at the bottom of tower 1. Allen R. Brier N5XZ 1515 Windloch Lane Richmond, Texas 77406-2553 (281) 342-1882 (Home) (713) 705-4801 (Cell) From: tdxs-list [mailto:[email protected]] On Behalf Of William K Carr III Sent: Monday, April 18, 2016 10:15 AM To: TDXS List <[email protected]> Subject: [tdxs-list] Rotor control line lightning protection How do you protect rotor control lines, remote antenna switch control lines etc. from lightning surges? Kim K5TU
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