I have a 240 circuit that i am trying to split into 2 120 circuits. I have only 3 wires available, red/white/black. I have another circuit a few inches away (both in junction boxes), Can I share the GROUND wire with the two circuits to avoid having to run all the way back to the panel or getting only one circuit from the 3 wires. I know how to split the circuit, breakers, etc. My only question is the shared ground. All 3 circuits will be 20A.
It is the GROUND I am asking about, not the neutral wire.