Attachment 10_East Pocket_SHEETS_2-5_FINAL_EPLO-SHT5_1_127EAX26Q0074.pdf

This is a lightning protection schematic and technical drawing for the U.S. Department of Agriculture Forest Service, Coconino National Forest, East Pocket Lookout Rehabilitation project (Sheet 5 of 5).

The schematic illustrates the lightning protection system design for a lookout tower and cab structure. Key components include five new air terminals to be installed on the roof, approximately 12 inches from the edge, with proper fastening to the roof structure. The system requires installation of new eave loop conductors connecting to the protection system, replacement of the underfloor cab loop conductor, installation of new diagonal conductors beneath the cab floor, and connection of all vertical down conductors to existing in-ground loops. All metal objects inside the cab, including the catwalk, radio antenna, radio cabinet, solar charging system, downspout, guy wires, and propane line must be properly tied to the protection system and sealed at wall and floor penetrations. The design specifies conductor specifications including a minimum 8-inch bend radius, continuous connections, proper fastening every 3 feet with appropriate straps, and compliance with NFPA 78 Lightning Protection Code requirements. All conductors are sized at #4/0 soft-drawn copper or equivalent, and the drawing notes that this schematic is for reference purposes only and does not include all pertinent information, with contractors required to verify specifications and comply with current code requirements.