1.02 Quality Assurance: The system shall conform to the above cited standards. The system furnished shall be the standard product of a single, UL listed manufacturer regularly engaged in the production of lightning protection systems and shall be the manufacturer's latest approved design. All material specified is manufactured by Thompson Lightning Protection, Inc., 901 Sibley Highway, St. Paul, Minnesota 55118, or approved equal. For approval of a manufacturer other than specified, proposed material data and installation drawings must be submitted for review not less than 10 days prior to bid.

1.03 Submittals: Complete shop drawings shall be prepared by the manufacturer and submitted to the architect for approval prior to start of work. System installer shall submit to the architect an original, project specific, notarized certification from the equipment manufacturer verifying their qualifications as a lightning protection installer. Samples and catalog data shall be submitted to the architect for approval upon request.

2.01 Standard: All equipment shall be factory inspected, approved, and properly labeled in accordance with LPI and UL requirements. All equipment shall be new, the product of a single manufacturer, and of a design and construction to suit the application where used.

2.02 Equipment: All materials shall be copper, copper alloy, or aluminum, and of the size, weight, and construction to suit the application where used in accordance with LPI, UL, and NFPA requirements for Class I structures and as per manufacturer recommendations. Downlead conductors from roof to ground shall be copper, of 29 strands 17 gauge, Cat. No. 29X. All main roof conductors shall be aluminum, 24 strands 14 gauge, Cat. No. A24. Air terminals shall be solid, round aluminum 1/2" diameter, Cat. No. A55, A56, etc. and shall project 10" minimum above the object to be protected. Locate and space according to LPI, UL, and NFPA requirements. Air terminal bases shall be of cast aluminum with bolt pressure cable connection and shall be securely mounted with stainless steel screws or bolts, Cat. No. 690X, A678,A611, etc. as required. Crimp type connectors are not acceptable. Bases on built-up tar and gravel or single membrane roofs shall be secured with adhesive and shall have a minimum surface contact area of 18.5 sq. inches, Cat. No. A688, etc. Coordinate with the roofing contractor to insure compatibility of any adhesive with the roofing system in use. Ground rods shall be a minimum 5/8" diameter and 10' long, Cat. No. TL5810. They shall be connected to the system with a two-bolt cast bronze clamp, Cat. No. 231, having a minimum length of 1-1/2" and employing stainless steel cap screws. Cable fasteners shall be substantial in construction, electrolytically compatible with the conductor and mounting surface and shall be spaced according to LPI, UL, and NFPA Code requirements, Cat. No. A730, A166, etc. Bonding devices, similar to Cat. No. A702, A704, A551, A142, A561, A142X, etc. All miscellaneous bolts, nuts, and screws shall be stainless steel. An approved bimetal transition fitting shall be used at the roof level to change from aluminum roof conductor to copper downlead cable.