Just curious if any research has been done on angling ground rods... sharp bends in the grounding system are no-nos as we all know... and taking that right angle at the top of the rod is just that. I
Don't worry about sharp bends in ground conductors unless they are near a building or other object where side flashes may occur... see some of the discussion about this at these places: http://lists.
Don't put your rods close to the concrete base to avoid interaction with the UFER ground. Put the first ring of rods at least 4-8 ft from the concrete. 73, Jim K9YC __________________________________
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 19 Jan 2016 00:59:17 -0500
I was just wondering and no, I have no plans on changing my system: Yes, I am serious. The topic of UFER, ground rods and safety ground "systems". Would those of us with good soil benefit from boring
concrete or bentonite encased rods are used for power lines in places that its very hard to get a good ground. just how low a ground impedance (low frequency) are you looking for??? I was just wonder
On 1/18/16 9:59 PM, Roger (K8RI) on TT wrote: I was just wondering and no, I have no plans on changing my system: Yes, I am serious. The topic of UFER, ground rods and safety ground "systems". Would
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Tue, 19 Jan 2016 09:03:11 -0600
Some interesting ideas, thanks. I have a couple 3PH mounted augers with blades for 6 through 12 inches in diameter and have built an extension system to be able to drill deeper than the standard of a
Backfill with bentonite or similar conductive earth material. I know a local installer who puts up broadcast towers who did this and created a ridiculously low resistance ground network on a rock mou
if you really think you need to expend that much effort to get a good ground start reading with some of this list: https://www.google.com/?gws_rd=ssl#q=concrete+bentonite+mix+for+grounding Some inter
Fascinating.. there's a mention of a conductive cement mix (presumably bentonite and portland cement and maybe sand?) that you put in dry. It absorbs moisture from the soil and forms a permanently b
Yes, but -- it's my understanding that bentonite and similar materials must be recharged periodically to be effective. 73, Jim K9YC _______________________________________________ ___________________
Yes, but -- it's my understanding that bentonite and similar materials must be recharged periodically to be effective. 73, Jim K9YC _______________________________________________ ___________________
On 1/19/16 9:42 AM, Jim Brown wrote: On Tue,1/19/2016 7:10 AM, Chris wrote: Backfill with bentonite or similar conductive earth material. I know a local installer who puts up broadcast towers who did
Might exercise caution on what chemicals are getting dumped into the ground. Check fed, state, local regs.if uncertain. e.g., some fly ash contains arsenic. Would not want to inadvertently turn your
Thanks, Jim. Another issue -- everything I've seen published talks about resistance at audio frequencies. How about at RF? 73, Jim K9YC On Tue,1/19/2016 11:11 AM, jimlux wrote: On 1/19/16 9:42 AM, Ji
Yes I do it every 1/2 year, on 29 rods ..... use cheap Walmart towel's, crushed gypsum, Bentonite clay powder and and ice cream rock salt...... The top 12 inches of the ground rod is encased in a Loe
A lot of those papers (like the ones that 'TTT linked to) are looking at lightning waveforms. _______________________________________________ _______________________________________________ TowerTal
To enhance the procedure...after the system is been in , before you add a new towel, take a TV antenna 4 foot ground rod and drive it an inch or two from the rod..then pull it out...put about 4 hole
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 20 Jan 2016 02:50:28 -0500
Cost of concrete: Where you are located, how much you get, and when you buy make all the difference. Late last spring after the thaw, but before we could get trucks on the yard, let alone concrete tr
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 20 Jan 2016 06:53:37 -0500
I have trouble understanding Bentonite needing to be "recharged" I believe it's a form of clay that is relatively conductive?. Isn't Bentonite also the material where you drill holes in concrete, pou