[AT] grounds

[Larry D Goss]

Try living in an urban location where all the houses are connected to a 
network -- no individual transformers at all.  It was nearly impossible to 
tell where the grounds were likely to be.  I put a recording voltmeter in my 
house and charted the voltage for a week at a time.  At 7:00 AM every 
morning, it dropped like a rock to around 90 volts and didn't fully recover 
until late afternoon.  No one was ever able to tell me what was going on for 
sure, but I surmised it was due to start up in the local coal mines every 
morning.

Larry

----- Original Message ----- 
From: "charlie hill" <chill8 at suddenlink.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, December 17, 2007 6:00 PM
Subject: Re: [AT] grounds


> Len I wondered the same thing and what about if you are in a sub-division
> with houses 20 feet apart side to side and less than 100 feet apart in the
> back yard.  All of them being serviced from the same transformer sitting 
> on
> a concrete slab in the corner of one yard. Like you, I'm not arguing.  The
> explaination from the NEC makes sense to me.  I'm just trying to 
> understand.
>
> Charlie
> ----- Original Message ----- 
> From: "Len Rugen" <rugenl at yahoo.com>
> To: "Antique tractor email discussion group" 
> <at at lists.antique-tractor.com>
> Sent: Monday, December 17, 2007 3:00 PM
> Subject: Re: [AT] grounds
>
>
>> OK, If you are fed from a transformer on a pole, that pole likely has a
>> copper wire to a coil ground on the bottom of the pole.   I had a meter
>> base on my house and the required copper ground rod there.  Then we added
>> a 2nd service with a meter base on the pole for Dad's mobile home.  Now
>> that that is gone, I had them "combine" my service so I wasn't paying the
>> minimum charge twice.  They moved my meter to the base on the pole,
>> connected my feeder to that and jumpered the meter base on the house.
>> Don't I now have 2 grounds 30' appart?
>>
>> Plus every utility pole is grounded in like manner, so I have 2 more
>> grounds 50-60 yards each way.
>>
>> I'm not arguing... I'm building a shop off the 2nd feed from the new 
>> meter
>> base that I didn't plan on grounding.
>>
>> Len Rugen
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>>
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