hi i am going 2 be re-newing the kitchen total blitz so as the plasterboards are down it is a stud wall between the bathroom and the kitchen is it safe2 run the cables through 20mm round pvc conduit and is 20mm conduit the right size 4 the cooker cable wich will be 6mm i am not doing the work my electrican will its just so i know a bit when talking 2 him about it thanks rich