Orange County NC Website
Orange County Emergency Services -Generator <br />PDC Project 24030 Transfer Switches 26 36 00 - 5 <br />c.Test Mode: Provides for operational testing of bypassed transfer switch without affecting <br />power to load. <br />d.Isolate Mode: Provides for complete isolation of transfer switch from all power sources, <br />permitting removal from unit. <br />O.Interface with Other Work: <br />1.Interface with engine generators as specified in Section 26 32 13. <br />2.03 SOURCE QUALITY CONTROL <br />A.Perform production tests on transfer switches at factory to verify operation and performance <br />characteristics prior to shipment.Include certified test report with submittals. <br />PART 3 EXECUTION <br />3.01 EXAMINATION <br />A.Verify that field measurements are as indicated. <br />B.Verify that the ratings and configurations of transfer switches are consistent with the indicated <br />requirements. <br />C.Verify that rough-ins for field connections are in the proper locations. <br />D.Verify that mounting surfaces are ready to receive transfer switches. <br />E.Verify that conditions are satisfactory for installation prior to starting work. <br />3.02 INSTALLATION <br />A.Perform work in a neat and workmanlike manner. <br />B.Install products in accordance with manufacturer's instructions. <br />C.Arrange equipment to provide minimum clearances and required maintenance access. <br />D.Provide required support and attachment in accordance with Section 26 05 29. <br />E.Install transfer switches plumb and level. <br />F.Unless otherwise indicated,mount floor-mounted transfer switches on properly sized 4 inch high <br />concrete pad. <br />G.Provide grounding and bonding. <br />H.Identify transfer switches and associated system wiring. <br />3.03 FIELD QUALITY CONTROL <br />A.Prepare and start system in accordance with manufacturer's instructions. <br />B.Automatic Transfer Switches: <br />1.Inspect and test in accordance with NETA ATS Section 7.22.3. <br />a.Verify equipment nameplate is in accordance with contract documents. <br />b.Inspect physical and mechanical condition. <br />c.Inspect anchorage,alignment,grounding,and required clearances. <br />d.Verify unit is clean. <br />e.Verify appropriate lubrication on moving current carrying parts and on moving and sliding <br />surfaces. <br />f.Perfrom manual transfer operation. <br />g.Verify positive mechanical interlocking between normal and alternate sources. <br />h.Perform resistance measurements through bolted connections with a low-resistance <br />ohmmeter. <br />i.Perform insulation resistance tests for one minute on each pole,phase-to-phase and <br />phase-to-ground with switch in both source positions and across each open pole. <br />j.Perform contact/pole resistance test. <br />k.Verify phase rotation. <br />l.Verify Transfer switch timing: <br />Docusign Envelope ID: DEDB83DA-7916-8AE5-81B0-AA1EA4D56AE9