hey fellas trying to figure out, how to wire my home automation, I have knob and tube wiring, trying to figure out my knob and tube setup, when I test the wires at the switch, when its on there is no voltage detected, but when I switch is off I can read voltage in one wire. I guess that would be the line , and the other is the neutral. So I guess they tied in the load in the wall somewhere?
How are you measuring voltage? From what wire to what wire using what type of meter?
Don't assume anything with K&T; you'll find that the neutral wire is switched as often as the hot in lighting circuits. Identifying which wire is which usually requires dragging an extension cord from a known good ground to your testing location and measuring voltage from the unknown wire(s) to the known good cord ground.
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