1. Gen1405.06 CONTROLLER CABINET: (a) General: The controller and all associated equipment shall be provided in a weatherproof metal cabinet of clean-cut design and appearance. All exposed edges shall be free of burs and pit marks. Controller cabinets shall be identical and be provided by the same manufacturer as the controller. All cabinets shall be base mounted on new foundations. (b) Construction Materials: The cabinet shall be constructed of ASTM Designation B-209 sheet aluminum alloy 5052, with a minimum thickness of three mm. The cabinet shall have a smooth natural aluminum finish. Handles and locks shall be rustproof. (c) Welds: All welds shall be neatly formed and free of cracks, blow holes, and other irregularities. All welds shall be made by the Heliarc welding method. Welds on the exterior faces of the cabinet shall be reduced to a minimum. (d) Door: A hinged door shall be provided permitting complete access to the interior of the cabinet. The door shall be equipped with a closed cell neoprene gasket at least 6.35 mm thick permanently bonded to the metal. Coat the mating surface of the gasket with a silicone lubricant to prevent it from sticking to the mating metal surface. The door shall be provided with a brass or stainless steel lock utilizing a Corbin No. 2 key that is removable in the locked position only. The Contractor need not provide any new keys with the cabinets. The locking mechanism shall secure the door to the cabinet at three (3) points. (e) Auxiliary Door: A small hinged and gasketed “door in door" shall be included on the outside of the main cabinet door. The auxiliary door shall not allow access to the controller, its associated equipment, or exposed electrical terminals but shall allow access to a small panel and compartment containing switches and/or jacks as follows; (1) A signal shut-down switch (2) A flash control switch (3) An auto-manual switch and jack-mounted push-button for manual operation The auxiliary door shall be equipped with a strong lock utilizing keys of a skeleton key design
