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#127574 09/02/01 05:15 PM
Joined: Oct 2000
Posts: 5,392
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sparky Offline OP
Member
would'nt that be kind of high impedance thru the earth??

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#127575 09/02/01 06:11 PM
Joined: May 2001
Posts: 717
G
Member
Sparky, Not only is it high impedance, you don't know where it ends up. It was just such a scenario that made me wander out to the pole, fella kept getting really clobbered out at his well. He had a tin cup out there and used it to drink from, and this was through linemans boots. Black Valley PA. The cure of course, was to replace the galvanized pipe with plastic, at least that stopped him from getting hit, didn't ground the thing properly. It works if the load is not heavy, and his was not.

#127576 09/02/01 06:27 PM
Joined: Nov 2000
Posts: 2,148
R
Member
In the early days of the REA (rural electrification authority) it was common to run only the single hot out in rural area where there was often miles between customers. The earth was used as the second conductor for these systems. I don't know if there are any of these circuits still in use. I haven't found any in this area.
Don(resqcapt19)


Don(resqcapt19)
#127577 09/04/01 03:28 PM
A
Anonymous
Unregistered
>The earth was used as the second conductor for these systems.
Obviously they would have tied the GC of the low side to the GC of the high side. But what was the high side voltage? It is hard to imagine this working very well at 4000 V. I would guess that the voltage would vary with the rainfall.

#127578 09/04/01 07:08 PM
Joined: Oct 2000
Posts: 5,392
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sparky Offline OP
Member
well i'm certainly eyeballin' the utility poles around here now.... [Linked Image]

#127579 09/04/01 07:55 PM
A
Anonymous
Unregistered
>I can only see 1 wire going into the top of the can.
There is another wire somewhere.

How many wires were going pole-to-pole?

#127580 09/04/01 08:59 PM
Joined: Mar 2001
Posts: 2,056
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Member
Quote
Originally posted by Dspark:
>[b]I can only see 1 wire going into the top of the can.
There is another wire somewhere.

How many wires were going pole-to-pole?[/B]

3 wires running along pole to pole. Only 1 ever is feeding the xfmr. I found a few clear examples where the main run is on one side of the street, and a single wire crosses over the street to the top of a transformer on the other side.
Is everyone saying that in their area, this is not the case?
I will have to try to take some pictures!

#127581 09/05/01 06:37 AM
Joined: Oct 2000
Posts: 5,392
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sparky Offline OP
Member
geez, i'm lookin' up while driving here

#127582 09/05/01 06:52 AM
Joined: Mar 2001
Posts: 2,056
R
Member
Quote
Originally posted by sparky:
geez, i'm lookin' up while driving here

... while surfing my laptop, while on my cell phone, eating a breakfast sandwich. I have become so obsessed with looking at every poletop, that I will soon have an accident. [Linked Image]
BTW, what did you find?

#127583 09/05/01 01:44 PM
Joined: Sep 2001
Posts: 3
S
Junior Member
would any one like to chat about electricity, transformers, motors,
nec requirements, successful electrical contracting traits,habbits,marketing etc....
I am a 15 year electrician and would like to learn more..I take my California State contracting exam on 9/13/01......... my icq and email should be visable to users....

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