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#62491 - 02/16/06 07:02 PM 50 VOLTS ON GROUND
lite bulb Offline
Member

Registered: 02/12/06
Posts: 77
Loc: wilm,de.
I RECENTLY LOST MY COMPUTOR SERVER WHICH IS ON COMCAST WHEN COMCAST CAME OUT THEY SAID THERE WAS 45 TO 50 VOLTS ON THE GROUND WHAT WOULD CAUSE THIS, THE SERVICE HAS A WATER PIPE AND GROUND ROD GROUND AT THE MAIN AND COMCAST TAPPED OFF THE WATER PIPE.

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#62492 - 02/16/06 07:29 PM Re: 50 VOLTS ON GROUND
Tesla Offline
Member

Registered: 06/16/04
Posts: 1280
Loc: Sacramento, CA
Call an electrician....

Sounds like trouble in your panel.
_________________________
Tesla

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#62493 - 02/16/06 07:48 PM Re: 50 VOLTS ON GROUND
lite bulb Offline
Member

Registered: 02/12/06
Posts: 77
Loc: wilm,de.
WHAT WOULD CAUSE THIS

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#62494 - 02/16/06 08:06 PM Re: 50 VOLTS ON GROUND
Active 1 Offline
Member

Registered: 02/22/03
Posts: 684
Loc: Grayslake IL, USA
Check the equipment ground on your caps lock. Otherwise call an electrician quickly.... And pay them to make repairs. You may have a dangerous situation that can destroy electrical items, cause shocks, or worse.


Tom

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#62495 - 02/16/06 08:10 PM Re: 50 VOLTS ON GROUND
dereckbc Offline
Member

Registered: 10/08/03
Posts: 158
Loc: Tulsa, OK
A very common problem. It is life threatening and you should seek professional help ASAP. Sounds like you are not in the trade, so fixing it yourself is not an option.

Failure to get the issue resolved will likely cause immediate equipment failure, and possible fatal shock under the right conditions.

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#62496 - 02/16/06 08:12 PM Re: 50 VOLTS ON GROUND
Larry Fine Offline
Member

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
I am curious as to what point they measured this voltage from, i.e., the reference.
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com

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#62497 - 02/17/06 06:02 AM Re: 50 VOLTS ON GROUND
dereckbc Offline
Member

Registered: 10/08/03
Posts: 158
Loc: Tulsa, OK
Larry good point. If it was between the service and coax shield guess which pot is calling the kettle black.

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#62498 - 02/17/06 06:42 AM Re: 50 VOLTS ON GROUND
pauluk Offline
Member

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
I'm not clear as the two points between which the measurement was made. I assume one was at the ground on the outlet powering the server, but when you say Comcast "tapped off the water pipe" do you mean that was the reference point used?

If the water pipe is properly bonded and at ground potential, then it might just be a bad equipment ground to the receptacle in question. Or maybe it's a replacement for an older 2-wire outlet which never had a ground in the first place?

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#62499 - 02/17/06 06:53 AM Re: 50 VOLTS ON GROUND
Radar Offline
Member

Registered: 04/30/04
Posts: 349
Loc: Los Angeles, CA
 Quote:
WHAT WOULD CAUSE THIS

A defect.

Call a qualified service electrician asap.
_________________________
There are 10 types of people. Those who know binary, and those who don't.

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#62500 - 02/17/06 02:06 PM Re: 50 VOLTS ON GROUND
Larry Fine Offline
Member

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
Another psooibility is that the problem is on the incoming cable shield, and not the house ground.

Cable systems have, if I'm not mistaken, 50 volts imposed on them for powering in-line equipment.

It is very possible that this damage was caused by a defect in cable-company equipment, and they are liable.
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com

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