Using a tone generator to find a dead wire source
Wow- just found this:
A high-resolution ohmeter (or whetstone bridge) is used to measure the wire resistance to the short circuit. By knowing the wire resistance for a length of wire (either from published values for that type of wire, or by testing a known length),
you can determine how far away the short is.
I have a good meter, can I use ohms to trace back the distance and then dig through the plaster wall? How much resistivity should a 110v wire have per linear foot? House was built in 1946. Its in Califorina.
Alexander Pope: [a little knowledge can be a dangerous thing]