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B . The baseplate must be cast iron drip rim baseplate with integral drip channels incorporated <br /> on each side. Each channel shall include an NPT connection and plug. The baseplate must <br /> conform to ANSI/ASME 1373 . IM 1984 Standard Dimensions and have pre-drilled holes for <br /> pump and motor mounting as well as grout holes . The baseplate design must provide <br /> sufficient rigidity to maintain alignment between pump and motor. <br /> 2 .09 COUPLING <br /> A . The shaft coupling between the motor shaft and the pump shaft is to be a flexible spacer <br /> coupling, Falk T10 1090T . The coupling must have a drop out center spacer to allow the <br /> shafts to be disconnected without disturbing the pump or motor. Coupling hubs are to be <br /> keyed into position on both shafts . The flexible rubber insert is to be EPDM . The coupling <br /> must be selected properly by horsepower rating and shaft size for the pump and motor <br /> combination specified . <br /> B . An OSHA approved coupling guard shall be furnished over the coupling for protection. <br /> 2 . 10 MOTORS <br /> A. Drive motor shall be horizontal squirrel -cage induction type as specified in Section 16490 . <br /> The motor shall be for use with a VFD . The motor nameplate horsepower rating must not be <br /> exceeded at any head-capacity point on the pump curve. <br /> B . Drive motor must be designed, manufactured, and tested in accordance with the latest revised <br /> edition of NEMA MGI. The motor shall be the squirrel-cage induction, NEMA Design B, <br /> single speed type. The motor nameplate horsepower rating must not be exceeded at any <br /> ihead-capacity point on the pump curve . The motors must conform to the following: <br /> Synchronous Speed 1 , 800 rpm <br /> Horsepower 150 HP (Maximum) <br /> Voltage, Phase & Frequency 460V++ 10%, 3 -phase, 60 Hz <br /> Mounting Horizontal <br /> Enclosure TEFC <br /> Design NEMA B <br /> Service Factor 1 . 15 for continuous duty <br /> Duty Cycle Continuous <br /> Ambient Temperature Rating 40 degrees C <br /> Winding Insulation Class F <br /> Tempe Rise Class B <br /> Starting Method Variable Frequency Drive <br /> Starting Current Manufacturers' standard <br /> Bearing Lubrication Sealed bearing <br /> I Bearing Life 150,000 hours rating life is defined <br /> by AFBMA standard <br /> C . Provide motor modifications as follows : <br /> 1 . Space heaters to prevent moisture condensation, rating 120 volts, 200 watt <br /> maximum, ac. <br /> 044572017 <br /> 11934-7 <br />