[TowerTalk] Guy anchors for AB-577

Andre VanWyk nj0f at yahoo.com
Thu Feb 22 10:29:55 EST 2018


I am curious how you would add equalizer plates for guying at 5 levels, which is what I plan to do for my 160m elevated vertical for 160m using Rohn 25G insulated 30ft from the ground. 
Anyone with experience adapting the Hubble triple eye screw in anchors to Rohn equalizer plates or another way of doing this?

The location of the vertical is not accessible for concrete trucks so if I can get away with using screw in anchors it would make this much easier. 
I plan to screw these in with a hydraulic auger mounted to a Dingo which is small enough to reach the location.  Being so wet here till later spring or early summer, this would shave a lot of time from my project too. 

Any pointers would be appreciated. 

73
NJ0F


Sent from my iPad

> On Feb 21, 2018, at 7:50 PM, John Langdon <jlangdon1 at austin.rr.com> wrote:
> 
> We used to use these for installing small wind turbines (2500 pounds and 8+
> meter blades turning at 100+ rpm with significant projected area, see
> https://www.nrel.gov/docs/fy13osti/56500.pdf for details of one
> installation). AB Chance has "distributors" who install these things - not
> cheap, but they have extensive soil surveys and engineering tables and when
> installed to a specified torque they give you a specific anchor strength to
> satisfy building permit and wind survival specs. A guyed tower with these
> anchors was usually cheaper than the alternative such as Rohn SSV.
> 
> 73 John N5CQ
> 
> 
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Shawn
> Donley
> Sent: Wednesday, February 21, 2018 4:20 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Guy anchors for AB-577
> 
> Depending on your location, time of year can make all the difference when
> installing screw anchors.   I used some Hubble/AB Chance "No-Wrench" screw
> anchors with a 8" diameter helix and 66" long rod.
> 
> 
> https://www.hubbell.com/hubbellpowersystems/en/Products/Power-Utilities/Anch
> oring-Foundations/Helical-Anchors-Piles/No-Wrench-Screw-Anchor/No-Wrench-Anc
> hor/p/1915218
> 
> 
> Tried to get them down into my ground of heavy clay/sand mix in early
> summer.   What a job !.   I had a buddy help.  A big fellow (think NFL
> lineman) and we still could not get one anchor fully in.  But early the next
> spring when the frost was gone, it was still cool, and the ground was soft
> under foot, I managed to get the problem anchor fully in by myself along
> with a couple of others.  Sometimes you have to go in a quarter turn, back
> it off a half and then drive down again.  Maybe tree roots, not sure.   Much
> easier in the spring but still a hard job that I would not want to repeat.
> 
> 
> If you can get your local power company to come out and put them in with
> their hydraulic tools (same as the ones they use to bore a hole for a power
> pole) that's the way to go.  In my case, the anchor spots were in the woods
> and no way for a truck to get back there.
> 
> 
> There's even a portable hydraulic installation tool for situations like I
> had.   WARNING.  If you've huffed and puffed to put screw anchors in by
> hand, watching this video might make you feel sick.
> 
> 
> http://videos.hubbellpowersystems.com/detail/videos/anchors---utility/video/
> 5062658445001/chance-portable-anchor-installer---hubbell-power-systems
> 
> 
> I saw some of our local electrical co-op lineman having lunch and asked them
> if they might stop by with one of these  portable installers.   Got the deer
> in the headlights look and after explaining what it was, and after listening
> to a string of cuss words, I learned that their company had no such device
> and they had no idea such a thing even existed.  If they had to install a
> pole anchor where they could not get the truck, they had to put it in my
> hand with a long bar and muscle just like us.
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