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OC Sportsplex Pool HVAC Unit Replacement <br />PDC Project 23022 Grounding and Bonding for Electrical <br />Systems 26 05 26 - 2 <br />A.Existing Work: Where existing grounding and bonding system components are indicated to be <br />reused,they may be reused only where they are free from corrosion,integrity and continuity are <br />verified,and where acceptable to the authority having jurisdiction. <br />B.Do not use products for applications other than as permitted by NFPA 70 and product listing. <br />C.Unless specifically indicated to be excluded,provide all required components,conductors, <br />connectors,conduit,boxes,fittings,supports,accessories,etc.as necessary for a complete <br />grounding and bonding system. <br />D.Where conductor size is not indicated,size to comply with NFPA 70 but not less than applicable <br />minimum size requirements specified. <br />E.Bonding and Equipment Grounding: <br />1.Provide bonding for equipment grounding conductors,equipment ground busses,metallic <br />equipment enclosures,metallic raceways and boxes,device grounding terminals,and other <br />normally non-current-carrying conductive materials enclosing electrical conductors/equipment <br />or likely to become energized as indicated and in accordance with NFPA 70. <br />2.Provide insulated equipment grounding conductor in each feeder and branch circuit raceway. <br />Do not use raceways as sole equipment grounding conductor. <br />3.Where circuit conductor sizes are increased for voltage drop,increase size of equipment <br />grounding conductor proportionally in accordance with NFPA 70. <br />4.Unless otherwise indicated,connect wiring device grounding terminal to branch circuit <br />equipment grounding conductor and to outlet box with bonding jumper. <br />5.Terminate branch circuit equipment grounding conductors on solidly bonded equipment <br />ground bus only.Do not terminate on neutral (grounded)or isolated/insulated ground bus. <br />6.Provide bonding jumper across expansion or expansion/deflection fittings provided to <br />accommodate conduit movement. <br />7.Provide bonding for interior metal piping systems in accordance with NFPA 70.This includes, <br />but is not limited to: <br />a.Metal water piping where not already effectively bonded to metal underground water <br />pipe used as grounding electrode. <br />b.Metal gas piping. <br />c.Metal process piping. <br />2.02 GROUNDING AND BONDING COMPONENTS <br />A.General Requirements: <br />1.Provide products listed,classified,and labeled as suitable for the purpose intended. <br />2.Provide products listed and labeled as complying with UL 467 where applicable. <br />B.Conductors for Grounding and Bonding,in Addition to Requirements of Section 26 05 26: <br />1.Use insulated copper conductors unless otherwise indicated. <br />a.Exceptions: <br />1)Use bare copper conductors where installed underground in direct contact with <br />earth. <br />2)Use bare copper conductors where directly encased in concrete (not in raceway). <br />2.Where insulated grounding conductors are used conductors shall be colored solid green. <br />3.Grounding electrode conductors #4 AWG and larger shall be installed in raceway. <br />C.Connectors for Grounding and Bonding: <br />1.Description: Connectors appropriate for the application and suitable for the conductors and <br />items to be connected;listed and labeled as complying with UL 467. <br />2.Unless otherwise indicated,use exothermic welded connections for underground,concealed <br />and other inaccessible connections. <br />3.Unless otherwise indicated,use double crimp compression connectors or exothermic welded <br />connections for accessible connections. <br />PART 3 EXECUTION <br />3.01 EXAMINATION <br />Docusign Envelope ID: D4F3B98E-0756-4A0C-A3AD-05AA32D39F1C