[TowerTalk] #2 solid or stranded for tower leg grounds (Oops!)

wa5zup wa5zup at msn.com
Sun Sep 16 10:52:54 EDT 2007


Thanks Roger
I will check local electrical supply houses.  I live in small town USA.  I
have to get stuff from Albuquerque most of the time at work.  I buy from
Graybar in Albuquerque most of the time, using the work account there.  I
just ordered the rest of the #2 solid wire I needed from them, no one here
had it, except for jacketed #2 stranded.  I will see what part of an arm and
a leg they want for those.  Anything not made of copper, now days, is much
more reasonable at least.

John wa5zup

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Roger (K8RI)
Sent: Saturday, September 15, 2007 9:19 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] #2 solid or stranded for tower leg grounds (Oops!)

It'd probably help if I'd include the link


> Try a search on "Ilisco connectors"
> I found one out in my shop that is designed to mate Aluminum to Copper. 
> It
> is roughly 1 3/4 X 2 7/8" (Give or take a tad ) and fits either a 9/16" or
> 5/8" bolt. It accepts two MCM 350 cables.  There is plenty of room for 
> this
> one to be drilled out to take a 3/4" bolt.
>
http://ebusiness.ilsco.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId
=10001&langId=-1&catalogId=1&categoryId=192 
Watch out for line wrap.

The TA-800 could easily be opened up from 5/8" to 3/4"

73

Roger (K8RI)


> This page shows a few expamples. The 5/8" would need to be reamed to 3/4",
> but there is plenty of material.  Check with a local electrical supply 
> house
> and you may find some nearby.
>
> Good Luck,
>
> Roger (K8RI)
>
>> My ground connections are made to the three legs of the tilting fixture
>> rather than to the tower legs. This allows me to tilt the tower without
>> having to detach the ground straps. Based upon the large surface area
>> contact between the tower and the tilting fixture, not to mention the
>> fifteen 3/4" bolts holding them together, I think this is the best way to
>> go. It appears to have worked fine when the tower was hit by lightning a
>> couple of months ago.
>>
>> Doug
>> K4AC
>>
>> WA5ZUP wrote:
>>>
>>> The tower is a crank up and tilts over.  I would prefer a ground
>>> connection
>>> that I can unbolt and not have to redress the ground connections each
>>> time I
>>> want to tilt the tower over.
>>
>> _______________________________________________
>>
>>
>>
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>
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