I have used large ground rod type of clamps before. From: Jeremy Sent: Monday, March 23, 2015 4:37 PM To: [email protected] Subject: Re: [AFMUG] Cad welding expert advice needed :)
What kind of clamps do you use on the tower? I have used water line clamps and hose clamps but I always thought that exothermic welding was the proper way to do it. Is there a 'proper' clamp to use? On Mon, Mar 23, 2015 at 4:12 PM, Chuck McCown <[email protected]> wrote: https://www.erico.com/products/e1145wb06.asp No molds required. About $7 each (that was several years ago). From: Robert Haas Sent: Monday, March 23, 2015 4:02 PM To: [email protected] Subject: Re: [AFMUG] Cad welding expert advice needed :) Yeah, cad welding to the guy wire is bad juju, weld to the plate as Chuck suggests. I’ve always been leery of cad welding to a rohn 20/25 so we just clamp them – we’ve had too many fence posts burn through – I’d hate for the same to happen to a tower leg. We use #2 solid tinned copper for the wire. A couple of things on the molds – try to be creative – for instance if you know you need a ‘T’ mold – buy a ‘+’ mold instead and just push the wire through the mold. Same goes with the mold for the wire to ground rod – we buy molds with parallel wire passing through rather than a dead end to the rod. If the wire is dead ending, toss a short piece of scrap to plug one of the wire holes and push the other wire through.. It really keeps the number of molds down to a minimum and allows more flexibility overall. From: Af [mailto:[email protected]] On Behalf Of Chuck Hogg Sent: Monday, March 23, 2015 4:08 PM To: [email protected] Subject: Re: [AFMUG] Cad welding expert advice needed :) We bought the forms and do them from CadWeld. We do it to them just like what you are describing, but we weld to the guy wire plate not the wire itself. All kinds of youtube videos of it. Regards, Chuck On Mon, Mar 23, 2015 at 5:05 PM, Bill Prince <[email protected]> wrote: I would think that would be a "bad idea". Copper to zinc would not be a strong weld, and it would start some kind of galvanic reaction, not to mention weakening the cable. copper-copper will work, but I don't think it's actually welding, I think it might be brazing? bp<part15sbs{at}gmail{dot}com> On 3/23/2015 2:01 PM, Ken Hohhof wrote: I was not aware you could cadweld to guy wires. From: Paul McCall Sent: Monday, March 23, 2015 3:40 PM To: [email protected] Subject: [AFMUG] Cad welding expert advice needed :) First foray into cad welding… actually my logistics guy is digging into it. We basically need to do 3 types of welding for towers. 1) Welding copper ground cable to the guy 3/16”, ¼” and 5/16” wires 2) Welding copper ground cable to ground rods 5/8” 3) Welding copper ground cable to Rohn 25G and 45G tower piece. Looking at lots of models, pieces parts. Anybody have some practical suggestions on pieces parts, vendors etc? Thanks! Paul McCall, Pres. PDMNet / Florida Broadband 658 Old Dixie Highway Vero Beach, FL 32962 772-564-6800 office 772-473-0352 cell www.pdmnet.com [email protected]
