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CITY OF SANTA ANA <br />RF1? NO.: 16•()90 <br />WATER WELL, .PUMP AND MOTOR REPAIR SERVICES <br />delivery/pick up for the repair and refurbishment of electric motors and perform any recondition or rewiring <br />as necessary to return the equipment fully operational. All electric motor repair shall be done in an <br />EASA Accredited Member service shop, no exceptions. <br />a. All Work shall be in accordance with the Electrical Apparatus Service Association's (EASA) <br />Recommended Practice, AR1004015 latest edition and the National Electrical Manufacturers <br />Association (NEMA) standards for service and repair of electrical apparatus. <br />b. Work shall be in conformance with standards set by, but not limited to, the following organizations; <br />1. Underwriters Laboratories (UL) <br />a. Underwriters Laboratories — Certified motors shall be recertified after repair. <br />b. Contractor's shop or his sub -contractor's shop shall be UL -certified to rebuild explosion -proof <br />electric motors for use in hazardous environments. <br />2. American National Standards Institute (ANSI) <br />3. American Society for Testing and Materials (ASTM) <br />4. National Electrical Code (NEC) <br />5, National l=ire Protection Agency (NFPA) <br />6. National Electrical Manufacturers Association (NEMA) <br />Recondition/Repair of Electric Motors <br />Reconditioning/repair of electric motors shalt include the testing, disassembling, Inspection, cleaning, <br />dipping, baking of windings, replacement of bearings, assembly, testing and painting and at minimum <br />Include the foligwing <br />a. Pre-Disassern.bty Test <br />1. Using a 1060V meg-ohm meter, conduct verification of Insulation integrity, Record the insulation <br />resistance of the motor as brought in from the City, Acceptable criteria is 5 meg-ohms or higher. <br />2 Verify that heaters are operational and that other attached features, such as thermocouples, have <br />continuity. <br />3. Single-phase test to check for open rotors. (After disassembly, rotors will be inspected for evidence <br />of damaged, cracked or open circuit bars or end rings. If there is evidence of faults, the rotor will be <br />growl -tested.) The detection of any defect during testing shall be reported promptly to the Engineer <br />4. Documentation covered under this section shall Include tha condition of mechanical fits (i.a, shaft <br />run out), cracked., broken or missing parts, test run at full voltage, current readings, meg reading <br />and surge comparison test as received. The Engineer shall be notified if acceptable criteria are not <br />met. <br />b. Motor Disassembly <br />1. Completely disassemble motor and steam clean all mechanical parts using a mild detergent <br />compatible with winding insulation; thoroughly rinse; bake dry. <br />2. Disassembly documentation shall include the cause of failure and/or conditions contributing to <br />failure. <br />c. Motor Inspection <br />25C-13 <br />