UL 1746

Abstract

These requirements cover pre-engineered corrosion protection systems intended to be factory installed on the exterior surface of steel underground atmospheric-type storage tanks intended for flammable and combustible liquids. <br>These requirements cover the following systems: <br>a) Part I for galvanic-type cathodic protection systems. <br>b) Part II for fiber-reinforced plastic (FRP) composite systems. <br>c) Part III for polyurethane (PUR), polyurea, high density polyethylene (HDPE) or fiberreinforced plastic (FRP) jacketed systems. <br>d) Part IV for polyurethane (PUR) coated systems. <br>These tanks are intended for installation and use in accordance with one or more of the following: Standard for the Installation of Oil-Burning Equipment, NFPA 31; Flammable and Combustible Liquids Code, NFPA 30; Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A; International Fire Code, published by the International Code Council. <br>These tanks are completely fabricated, inspected and tested for protection system defects and/or tank leakage before shipment from the factory as completely assembled vessels and are intended for burial in accordance with the manufacturers instructions.