(12) With respect to residences, all references concerning service entrance conductors (meter loops) are amended to require a conduit of at least ridge metal, intermediate metal 2, one and one-quarter (1 1/4) inches consisting of a #2 copper or #1/0 aluminum wiring (aluminum allowed only on underground service) for residences of one thousand (1,000) to one thousand five hundred (1,500) square feet and consisting of #0 copper or #3/0 aluminum wiring (aluminum allowed only on underground service) for residences of one thousand five hundred (1,500) square feet or more.