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. F SANTA -ANA
<br />CJTY 0 ' RFPNQ�: 16-090
<br />WATER WEE , ?'LRVtP AND NIOTOR REPAIRSERVICES
<br />2. VWian needed, the interiors of
<br />, ma'tar f�smes anal parts. shelf 4a pal n (6� with on lnsuja Ung q!nt, ThisIn-6udes, rotor bearing brok 10 eflectors, WiadlW,s shall not bc-,,,Pajn-ted'L
<br />J. incidentals
<br />I. In the eventh-aC the moto.`ts in poor Condition and carrot be rop8fred, recon-diliored.or-ma.de as
<br />new, the Contractor shelf notify the Engineer Immediately,
<br />2, All llhc[datal pars requiring rep[aceme'nt"S'Joh as bea"r'ings, coils, etc, shall' be conslidered Iro[uded
<br />in other items of bid and no additional oompensatibn shall be allowed.
<br />7. REWINDING OF ELECTRIC MOTORS
<br />When rewinding Is done In conjunctiarT with a recondition or repair, many of the Items below will. be
<br />redundant and shall not be performed or charged for !:Vvioe. The items below apply to stator only (Including
<br />all labor, materials and testing necessary for work compfetion) and shall at a minimum include:
<br />a. Pre -Disassembly Test
<br />1. Using a 1000 meg-ohm meter, conduct verrricatior for insulation integrity. Acceptable criteria is 1_5
<br />rued-bhms or higher,
<br />2, A SKV rreg-at-rr meter shall, be used to verify Insulation integrity of all 41 60V motors.
<br />3. Verify thit heaters are operational and other attached features such as thermocouples hive
<br />ccritIriulty,
<br />4. Pre sassemb.ly dccu'rnenjation shall In-cktde file condition, of mechanical fits (i.e, shaft run Put),
<br />cracked,'broken or rrissinj parts, test run at full voltage, curren� reodings, mag rt adin g and surge.
<br />comparison test as received. The Engineer shall be notified if acceptablo criteria are
<br />not met,
<br />b. qtr1ppin.g
<br />1. Wlndilnqs 0011 be burnout with -even 'jem Pr6tu . ra 9 u 0 0 r058 �wo. n.
<br />Burh-aut tbmper'�Itu�.G shall riot ekbee.d. 750. dedreds Pahr&rhbit 0
<br />2. if hd!098 shaf[be.. removed in. such a fashion riot Eo d,arn ge tar. e#istort..t e core of th-a Old Windings and lh8aatlbn,' the core shbjl:'bd th-b.rbuqKy cle, and _ and:: Inspected
<br />pected for burrs, etc,
<br />3. After.t.ha burnout procedure, the Controctor shall pprfior a stator care loss test to ensure stater
<br />jaminatiori-sare npt Moat d�a,' at the 3tc
<br />a maged� If thestatpr i�ora J'os,8e5 exceed foPr (4).: Watts p�r pound. Of core
<br />steel., hoCfy-the Engineer prior to Proceedl'ing forward,
<br />c, Wirdirg
<br />I - General- R wound m9t.Grs shall Meet or exceed all 0,E.M. operating qharacteristics, unfess
<br />otherwise specified by the Engirieiar, NEMAC.IaSS 1711n:sLiiation sha[i.bo:'Used' unless otherwise
<br />herwise
<br />specified. Magnet wire shall be a Quad Suild,Jnsul.ated wire of dome.stfo manufacture that meets or
<br />exceeds NEMA speofflcatim MVV-35A. After winding and prior to resin treatment, windings will
<br />be surge -comparison tested and the results documented,
<br />2, The copper croso-soctional area shall ba at least as Dirge as the origInal winding.
<br />3,, R�Wn Treatment; Windings shall be double -dipped with Class H varnish and baked,
<br />4. Chock all coils for overall coil shape. Per -form a high frequency turn -to -turn clieleotric test (surge
<br />test) in accordance with. IEEE 522. Submit test results to the City. This shall be done prior to
<br />irstallaton Into the stator,
<br />d. Motor Leads: Motor leads that are replaced Must ba tha same length and configuration as the original
<br />leads. Leads will be permanently fagged with. non-magnetiG Markers, Lead lengths shall be Aentiffed
<br />by the City when, a request for service is made,
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