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ORANGE COUNTY 260526-2 <br /> <br />Emergency Management Warehouse Building Dehumidification Grounding <br /> <br /> <br /> <br />Bonding Connectors, Terminals and Clamps: Provide electrical bonding connectors, terminals, lugs and 1 <br />clamps as recommended by bonding connector, terminal and clamp manufacturers for indicated 2 <br />applications. 3 <br /> 4 <br />Hardware: Provide hardware for all grounding and bonding applications that consist of Type 300 series 5 <br />stainless steel, silicon bronze or brass. Hardware used for connections to enclosures shall include flat 6 <br />washers and split lock washers. 7 <br /> 8 <br />Electrical Grounding Connection Accessories: Provide electrical insulating tape, bonding straps, as 9 <br />recommended by accessories manufacturers for type service indicated. 10 <br /> 11 <br /> 12 <br />PART 3 - EXECUTION 13 <br /> 14 <br /> 15 <br />EXAMINATION 16 <br /> 17 <br />Examine areas and conditions under which electrical grounding and bonding connections are to be made and notify 18 <br />A-E in writing of conditions detrimental to proper completion of work. Do not proceed with work until unsatisfactory 19 <br />conditions have been corrected. 20 <br /> 21 <br /> 22 <br />INSTALLATION OF ELECTRICAL GROUNDING AND BONDING SYSTEMS 23 <br /> 24 <br />General: Install electrical grounding and bonding systems as indicated, in accordance with manufacturer's 25 <br />instructions and applicable portions of NEC, NECA's "Standard of Installation," and in accordance with recognized 26 <br />industry practices to ensure that products comply with requirements. 27 <br /> 28 <br />Coordinate with other electrical work as necessary to interface installation of electrical grounding and bonding system 29 <br />work with other work. 30 <br /> 31 <br />Connect together system neutral, service equipment enclosures, exposed noncurrent carrying metal parts of 32 <br />electrical equipment, metal raceway systems, grounding conductor in raceways and cables, receptacle ground 33 <br />connectors, and cold water systems. 34 <br /> 35 <br />Provide a separate, insulated equipment grounding conductor from each device to ground buses in panelboards. 36 <br />Terminate each end on a grounding lug, bus, or insulated grounding bushing. 37 <br /> 38 <br />Provide separate insulated equipment grounding conductor, size to be determined from NEC Table 250.122, for each 39 <br />circuit and in each conduit run. The grounding conductor shall be attached by means of a dedicated green screw to a 40 <br />common point in each junction box, cabinet, device box, enclosure, or utilization equipment to which it runs or 41 <br />through which it passes. Grounding methods depending on the continuity of electrical raceway, clips, or mounting 42 <br />screws are not acceptable. This grounding requirement will be rigidly enforced. 43 <br /> 44 <br />Tighten grounding and bonding connectors and terminals, including screws and bolts, in accordance with 45 <br />manufacturer's published torque tightening values for connectors and bolts. Where manufacturer's torquing 46 <br />requirements are not indicated, tighten connections to comply with tightening torque values specified in UL 486A to 47 <br />assure permanent and effective grounding. 48 <br /> 49 <br />Install clamp-on connectors on clean metal contact surfaces to ensure electrical conductivity and circuit integrity. 50 <br /> 51 <br /> 52 <br />END OF SECTION 260526 53 <br />DocuSign Envelope ID: 7668B866-6C26-485C-9A45-DAAB5D4BD951