Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
Date: Sun, 15 Oct 2017 11:31:34 -0400
Do not remove the galvanization. Just put some layer of Vaseline or some other gunk that wouldn't come off. You can even use paint. Wrap you shim around it while the paint is still wet, clamp it with
Leave the galvination in place. I don't think you have to mess with paste or paint of any sort. I would protect the connection from weather. Do not remove the galvanization. Just put some layer of Va
If you are using wire why not use zinc ground clamps? Tin the copper wire where it does into the clamp. I have this on each tower leg using a solid #4 copper tinned wire to my ground field. Sill look
I am not aware of any clamp for attaching copper strap to a tower leg other than a hose clamp and shim. Polyphaser sells a modified hose clamp just for this purpose. Why would the hose clamp blow apa
and have had multiple direct lightning strikes. The mechanical forces on a conductor carrying kilo-amp currents from a lightning strike can be extreme - many pounds per foot of conductor. (This is d
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Mon, 16 Oct 2017 07:44:41 -0500
Each of the three galvanized legs of my new tower bolts to galvanized steel coming up out of the concrete base. There are multiple bolts per leg. I intend to add stainless steel tabs (like a washer)
Commercial tower grounds are almost always cad-welded, but usually to the heavy base flange(s), or to heavy tabs already welded to the tower expressly for the purpose of grounding. I've seen some cad
Another subtlety is the recent standards requirement for two hole compression lugs plus antioxidant between surfaces for all bonding wire terminations. I think the idea with two hole lugs is to preve
compression lugs plus antioxidant between surfaces for all bonding wire terminations. I think the idea with two hole lugs is to prevent loosening of a single bolt attachment from movement of the wir
Good Morning All, and I am reading along this with interest given past posts as to the what/where of properly using worm-gear type clamp products. Ward ... please note that some suppliers DO seem to
A quick reply - yes, the stainless steel shim clamps can be used *in some circumstances* but my understanding from Polyphaser folks was these are not to be used as primary grounding clamps for heavy
Wards and others comments on this remind me of an experience that I had at my qth a few years ago. After what I thought was a direct hit on one of my towers, we lost cable (no surprise there). Turns
I have finally succumb to the wisdom of the board and ordered up some commercial Penn Union clamps which have 3/8" u-bolts and a comparatively huge bronze clamp. They are sized for my intended wire a
Wise decision Jeff, as I know you are fully committed to excellence there! As to the antioxidant, and related matters on this topic. It comes down to doing annual (as suggested by W3LPL/others) revie
I am not aware of any other type of clamp other than the stainless hose clamp type with the shim that is suitable for connecting ground strap to a tower leg. Unless there is a bolt available where th
This conversation comes up at an appropriate time for me. I had just previously downloaded the Burndy Grounding Catalog, a hundred plus pages of everything re grounding and even an illustration (P11)
What about diecast zinc like this? https://www.amazon.com/Ground-Clamp-Water-Pipe-Rod/dp/B00UTKQ3PW/ref=sr_1_5? ie=UTF8&qid=1508181810&sr=8-5&keywords=zinc+ground+clamp 73, N2TK, Tony --Original Mess
He is DEAD WRONG. Most (all?) North American building codes are either NEC or based on NEC. Virtually ALL of these codes, as well as good engineering practice, REQUIRE that all grounds within a premi
I keep seeing this said. I think we need to define braid When I was a kid, I used to hang out at a barn that had an extensive, and very very OLD "Lightning rod" system, and it had "braided cable" run
Nope... not me... Not nearly enough contact for my tastes... I want a TRUE galvanized or stainless clamp that was tailored as closely to the leg diameter as I could get and AT LEAST as wide as the s