Motor,Yes 680.21(A)(1) The branch circuits for pool associated motors can be installed in rmc,imc,rnc,or type mc, ect.
Lights,
Lights, "why do they always use copper?"
680.23(B)(2) Conduit shall be rigid metal,itermediate metal, liquid tight flexible nonmetallic, or rigid nonmetallic
(a) Metal Conduit. Metal shall be approved and shall be of brass or other approved corrosion-resistant metal
I suggest you read these articles as they are abreviated.
