So I am staying with some family for the summer who live on the edge of a sound (body of water). A boat lift, wired for 240VAC, was recently installed but no wiring was laid for it (it is not powered). I want to use the boat lift to lift a small sailboat (my hobie 14) out of the water. Rewiring the lift for 120 is possible, and would certainly be enough power to lift my tiny boat, but I am forbidden from doing this. I am also forbidden from installing a new 240 circuit in the house.
to overthrow this totalitarian regime without breaking any rules, i must develop a source of 240 using only existing 120 circuits. This would be a simple enough affair if the circuit box for the house were well labeled, and accessible and I had a schematic for the entire house; lets assume this is not the case, and I don't feel like trying to get to a very well hidden circuit box.
Now then, I have all the required wiring and plugs to create 240 from 2 120 circuits, but my question is the following:
Who knows an easy way to identify the phase of two different household circuits without seeing or knowing anything about the circuit box?
Preferably, it would be an easy test I could perform at the wall socket. And through some process of elimination, go around to some exterior wall plugs until I find two of different phase.
I have the following tools:
1. A digital multimeter with AC settings.
2. Various 3 prong and 4 prong plugs, plenty of raw wiring, and other hardware.
3. A few simple circuit elements like capacitors, resistors, inductors, diodes. Maybe a few transistors laying around.
No i do not have an oscilloscope. I wouldn't be having this conversation if I did.