said by alphapointe:A proximity sensor should work... a clamp meter won't work, as it has to be clamped only on the hot wire. Clamping around both hot and neutral cancels out the magnetic field that the clamp meter is reading...
Ah so a clamp meter only works if I can separate the neutral from hot. I didn't know that (Don't own one yet). Too bad really. I guess I won't invest in a clamp meter as it's not so useful to measure branch load unless I strip part of the jacket.
said by alphapointe:I don't know about running with pipe, one of the sparkys will need to chime in on that...
Well after I posted that question, I started thinking that if I were to run multiple circuits through that path, I better just run a large diameter raceway with a junction box to branch out at each floor. At that point it doesn't matter that it's close to the drain pipe (Except for the junction boxes).
PVC or EMT is now the question
PVC is annoyingly more expensive when you get to the junction boxes, but it would be waterproof in case of a spill
like earlier this week.