Cathodic Protection. This section covers the design, furnishing, installation and testing of the cathodic protection system. All buried metallic pressure piping shall be electrically isolated from the copper ground grid and dielectric insulation flanges, or unions, shall be installed at connecting points of the buried-to-above grade piping. Electrical isolation from the copper grounding grid shall be provided for storage tanks resting on grade. Such tanks shall have separate grounds connected to buried sacrificial anodes. Piping connections to above-ground storage tanks shall be made with isolating flanges at the tanks. Motors, motor-operated valves and other tank-mounted devices shall be isolated from the facility grounding grid. Mechanical joints and Dresser-coupled joints in buried piping, for which cathodic protection is provided, shall be bonded to ensure electrical continuity. Cathodic protection systems shall be designed and installed to meet the criteria of the National Association of Corrosion Engineers (▇▇▇▇). Based on the results of soil resistivity testing, Contractor shall determine whether cathodic protection systems shall be of the sacrificial or impressed current types. Test stations shall be installed to monitor the effectiveness of the cathodic protection systems and the integrity of the electrical isolation means.
Appears in 2 contracts
Sources: Engineering, Procurement and Construction Agreement (Tenaska Georgia Partners Lp), Engineering, Procurement and Construction Agreement (Tenaska Georgia Partners Lp)