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Orange County Emergency Services -Generator <br />PDC Project 24030 Panelboards 26 24 16 - 5 <br />H.Provide grounding and bonding in accordance with Section 26 05 26. <br />I.Install all field-installed branch devices,components,and accessories. <br />J.Set field-adjustable circuit breaker tripping function settings as directed.If a power system study is <br />included in the contract,set breakers according to the recommendations made in the study. <br />K.Provide filler plates to cover unused spaces in panelboards. <br />3.03 FIELD QUALITY CONTROL <br />A.Molded Case Circuit Breakers: Perform inspections and tests listed in NETA ATS,Section 7.6.1.1 <br />for all main circuit breakers and circuit breakers larger than 600 amperes.Tests listed as optional <br />are not required. <br />1.Verify equipment nameplate is in accorance with contract documents. <br />2.Inspect physical and mechanical condition. <br />3.Inspect anchorage and anlignment. <br />4.Verify unit is clean. <br />5.Operate breaker to enusre smooth operation. <br />6.Perform breaker adjustamants in accorance with the power system study. <br />7.Perform resistance measurements through bolted connectionswith a low-resistance <br />ohmmeter. <br />8.Perform insulation-resistance test for one minute on each pole,phase-to-phase and phase- <br />to-ground with circuit breaker closed. <br />9.Perform contact/pole resistance test. <br />10.Determine long-time and short time pickup and delay settings by primary current injection. <br />11.Determine ground fault pickup and time delay by primary current injection. <br />B.Ground Fault Protection Systems: Test in accordance with manufacturer's instructions as required <br />by NFPA 70. <br />C.Test GFCI circuit breakers to verify proper operation. <br />D.Test shunt trips to verify proper operation. <br />E.Correct deficiencies and replace damaged or defective panelboards or associated components. <br />F.For Services and feeders 1000 amperes and larger,and any installation utilizing selective <br />coordination,the following test should be performed on the circuit breakers.Testing shall be <br />performed by a qualified manufacturer's factory technician at the job site.All readings shall be <br />tabulated. <br />1.Phase Tripping tolerance (within 20%of UL requirements). <br />2.Trip time (per phase)in seconds. <br />3.Instantaneous trip (amps)per phase. <br />4.Insulation resistance (in megohms)at 1000-volts DC (phase to phase,and line to load). <br />3.04 ADJUSTING <br />A.Adjust tightness of mechanical and electrical connections to manufacturer's recommended torque <br />settings. <br />B.Adjust alignment of panelboard fronts. <br />C.Load Balancing: For each panelboard,rearrange circuits such that the difference between each <br />measured steady state phase load does not exceed 20 percent and adjust circuit directories <br />accordingly. Maintain proper phasing for multi-wire branch circuits. <br />3.05 CLEANING <br />A.Clean dirt and debris from panelboard enclosures and components according to manufacturer's <br />instructions. <br />B.Repair scratched or marred exterior surfaces to match original factory finish. <br />END OF SECTION 26 24 16 <br />Docusign Envelope ID: DEDB83DA-7916-8AE5-81B0-AA1EA4D56AE9