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#30921 - 11/02/03 11:06 PM locating buried wires  
Tim Peters  Offline
Member
Joined: Mar 2003
Posts: 10
I'm trying to locate a burried wire. Its just some 12-2 uf wire. No trench tape, and my inductive amplifier is not strong enough.

Anyboady got a better method? I know there is another way but dont know how.


Work Gear for Electricians and the Trades

#30922 - 11/03/03 07:17 AM Re: locating buried wires  
gunther  Offline
Member
Joined: Sep 2003
Posts: 60
This may sound a little crazy but I have seen it before with results so if anybody has any comments or experiences, let me know. We used to take two pieces of number twelve wire about a foot and a half long and bend a couple of inches on the end at ninety degrees. Then walk across the area you think it might be in and hold the wires in each hand loosely. When the wires moved in together towards each other then we dug straight down and there would be the pipe with the wires. Saw it a couple of times and it seemed to work. Something about magnetic fields? Try to stop laughing ok? Kinda on the same principle that people who search for the right spot to drill water wells. Kooky?


#30923 - 11/03/03 07:23 AM Re: locating buried wires  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
If you have no luck "witching" for the wire, I would suggest seeing if you can rent a underground cable locater.

We have one and have good luck with it.

I have used it to find the far end of empty PVCs that had been installed during an earlier construction project but no one new where.

I pushed a 1/4" snake into the PVC and hooked the signal generator to that.

Worked great saved a lot of digging.


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#30924 - 11/03/03 08:40 AM Re: locating buried wires  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
I don't remember exactly how this worked, but another member previously mentioned this unorthodox method in a similar thread:
I have never done this, nor do I plan to ever do it
Disconnect a spark plug wire from the truck (w/ engine off [Linked Image]).
Run a jumper to the UG wire (be sure to disconnect all the other connections to the UG wiring)
Start truck, and walk along with an AM radio that's tuned off of any channels. The "ticking" will be picked up by the radio, and will be louder the closer you get to the UG wire.


#30925 - 11/03/03 10:08 AM Re: locating buried wires  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
Gunther: I didn't want to be the first to post about "witching", but I've been there and done it...it works!


Ryan Jackson,
Salt Lake City

#30926 - 11/03/03 11:52 AM Re: locating buried wires  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
Ryan,
But not everyone can make it work.
Don


Don(resqcapt19)

#30927 - 11/03/03 02:08 PM Re: locating buried wires  
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
Very Very true! :-P


Ryan Jackson,
Salt Lake City


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