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

To: <towertalk@contesting.com>
Subject: [TowerTalk] OT #2 solid or stranded for tower leg grounds (Oops!)
From: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 16 Sep 2007 16:56:40 -0400
List-post: <mailto:towertalk@contesting.com>
Just as an aside, we used to use connectors similar to these running bundles 
of three, 500 MCM cables to a rotary switch.  On the line side we used 500 
MCM to a pair of SCRs.  Those were quite the SCRs <:-))

73

Roger (K8RI)


> 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@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Roger (K8RI)
> Sent: Saturday, September 15, 2007 9:19 PM
> To: towertalk@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.
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
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