First - my appreciation for house wiring stops at correct new installations.
I do not know what happens over time or when things get creative.
I am replacing a line voltage thermostat that operates a fan in a fan coil. The cabling is #14 metal jacket to ground (BX). The cable may be running through metal plaster truss "studs".
See pic.
Checking the wires I find I have 97 volts from the hot wire to the wire that runs to power the fan.
But the fan is disconnected and wire is capped. No load?
At present I am guessing the wire to the fan is running as a third wire in 3 cable #14 to get it through several outlet boxes to the fan coil. There is one outlet I have yet to get access to to "know" my guess is correct.
I have been hearing that this is inducted voltage. 97 induced volts seems high for the few things that are plugged into outlets on the circuit.
So, is 97 induced volts possible over a distance of 26 feet when the hot wires being shared are carrying little load?
Is there a load in a hot wire even if the circuit is not closed?
Where can the 97 volts be going?
Do I have a problem and are there any suggestions on testing to determine where it is?
I do not know what happens over time or when things get creative.
I am replacing a line voltage thermostat that operates a fan in a fan coil. The cabling is #14 metal jacket to ground (BX). The cable may be running through metal plaster truss "studs".
See pic.
Checking the wires I find I have 97 volts from the hot wire to the wire that runs to power the fan.
But the fan is disconnected and wire is capped. No load?
At present I am guessing the wire to the fan is running as a third wire in 3 cable #14 to get it through several outlet boxes to the fan coil. There is one outlet I have yet to get access to to "know" my guess is correct.
I have been hearing that this is inducted voltage. 97 induced volts seems high for the few things that are plugged into outlets on the circuit.
So, is 97 induced volts possible over a distance of 26 feet when the hot wires being shared are carrying little load?
Is there a load in a hot wire even if the circuit is not closed?
Where can the 97 volts be going?
Do I have a problem and are there any suggestions on testing to determine where it is?