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I. The system neutral (grounded conductor) shall be connected to the system's <br /> grounding conductor at only a single point in the system. This connection shall be <br /> made by a removable bonding jumper sized in accordance with the applicable <br /> provisions of the National Electrical Code if the size is not shown on the Drawings. <br /> The grounding of the system neutral shall be in the enclosure that houses the <br /> service entrance main over-current protection. <br /> J. The system neutral conductor and all equipment and devices required to be <br /> grounded by the National Electrical Code shall be grounded in a manner that <br /> satisfies the requirements of the National Code. <br /> K. Grounding conductors shall be sized as shown on the Plans or in accordance with <br /> NEC table 250-122, whichever is larger. <br /> L. Grounding and bonding wires shall be installed in all conduits and raceways and <br /> connected to the ground bus and all equipment. <br /> M. Conduit grounding bushings shall be installed on all metallic conduits. Conduit <br /> grounding bushings shall be set screw locking type electra-galvanized malleable iron <br /> with insulation collar and shall be provided with a feed through compression lug for <br /> securing the ground bonding wire. Ground bonding wire shall be bare wire and shall <br /> be sized per NEC. <br /> N. All receptacles shall have their grounding contact connected to a grounding <br /> conductor. <br /> O. Branch circuit grounding conductors for receptacles, or other electrical loads shall be <br /> arranged such that the removal of a lighting fixture, receptacle, or other load does <br /> not interrupt the ground continuity to any other part of the circuit. <br /> P. Negative side of all VDC power supplies shall be grounded. <br /> 2.14 TUBING, FITTINGS, AND VALVES <br /> A. Instrument Tubing, Fittings, and Valves <br /> 1. Tubing <br /> a. Seamless 316 stainless steel. <br /> b. Fully annealed. <br /> C. Maximum hardness: 80 Rb. <br /> d. Free from surface scratches and imperfections. <br /> e. Diameter: 3/8-inch minimum outside diameter (OD) unless specified <br /> otherwise, or approved by Engineer. <br /> f. Wall thickness: Minimum 0.035 IN for 3/8-inch OD tubing. <br /> 2. Fittings <br /> a. Flareless <br /> b. Compression Type. <br /> 3. Valves <br /> July 2007 Division III-208 NEI Phase II Water and Sewer <br /> CIP Nos. 7468, 7589, 7590 <br />