I must clear up that this installation is at a plant I am currently employed at. My main concern is if this meets explosion-proof criteria and where I could formally find this info - from a book or from those-in-the-know. I may plan on using explosion-proof fittings anyway, but if not necessary I would rather not (to eliminate splices in well during future repairs). What materials are needed from well to panel - RMC? aluminium rigid? I know PVC is not an option. I will not be adding any type of receptacle - rather hard-wire from 3P 480VAC
pumps to motorstarters in the panel.
