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wiring installed in the conduit. The bushing shall have a compression—type grounding lug for bonding the conduit to the ground rod and pull box. Do not field drill ceilings bushings. 7.4.6 Conduit Placement — General Place conduit (location and depth) as required by the FDOT Utility Accommodation Manual, the plans, or as specified by the Owner. If the required steps cannot be accomplished due to soil conditions, obstructions, etc., additional mechanical protection may be required at the discretion and approval of the Owner. For underground conduit/duct requiring additional mechanical protection (e.g., boring under railroads, shallow boring depth, proximity to foreign utilities, etc.), furnish and install black steel pipe (BSP) as an outer sleeve/pacing, or other materials as required by the permitting agency and/or approved by the Owner. After the installation of the innerducts and upon completion of the tamping and backfill process, perform a mandrel test on each individual duct to ensure that no duct has been damaged. Provide a nonmetallic mandrel having a diameter of approximately 1", for use in 1.25" innerduct. If damage has occurred, replace the entire length of the duct. Test HDPE conduit for continuity and proper installation using a pressurization process; plug each innerduct and pressurize it to achieve a minimum pressure of 100 PSI for a minimum of 2 minutes. No roadway pavement cuts will be allowed unless approved by the Owner. Conduit entrances into base—mounted field cabinets through the sides, back or top of the cabinet, are not permitted. All conduit attachments to rigid structures shall require the shop drawing/plan detail showing the attachment method for review. Conduits terminating base mounted cabinet foundations shall extend a minimum of 2" above the foundation. All bends shall be at a 90° sweep, suitable for fiber optic cable, free from kinks, and of such easy curvature to permit the drawling in of cables without damage to insulation. All new base mounted field cabinet foundations, shall have installed at least two (2) spare, empty 2" conduits, terminating a pull box. Any metal conduit utilized shall be grounded and bonded in accordance with the NEC. All installation and construction work on all facilities shall be in compliance with the NESC. 7.4.7 Conduit Placement — Multi -duct Installation in Outer Duct Simultaneously, install the individual colored innerducts in the outer duct. Install the multi—duct conduits using an approved cable pulling lubricant. Use a dynamometer (clutch device) so as not to exceed the maximum allowable pulling tension. Do not use a motorized vehicle to generate pulling forces. Keep tension on the ducts and the pulling line at the start of each pull. Do not release the tension if the pulling operation is halted. Restart the pulling operation by gradually increasing the tension until the multi -ducts are in motion. Once the multi -duct system is installed in the outer duct, install the duct organizers at the point where the multi -duct system enters or exits the junction box, pull box, splice vault, or other similar structure, or a cabinet. Extend the ends of the multi -duct conduit such that upon completion of the installation, the ducts will extend a minimum of 2" above concrete services and 4" above crushed stone bases. 7.4.8 Conduit Placement — Splicing of the Conduit Splice or join sections of conduit(s) using the manufacturer's recommended splice kits. Upon approval, a pull box may be installed at locations where splicing the coupling of the conduit is necessary due to problems encountered with the installation. Use of mechanical couplings may be approved by the Owner on a project basis depending upon project requirements. 26