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® WorleyParsons <br /> resources&energy <br /> load. The MCC bus bracing and starter interrupting ratings will be consistent with the <br /> short-circuit currents calculated during detail design. All motor control centers will be <br /> installed indoors. <br /> A minimum of 10% spare starters will be provided for the following: size 1 FVNR starters, <br /> size 2 FVNR starters, 150A breakers, 225A beakers in each lineup. <br /> Placards will be placed on each motor control center starter to warn that operation of the <br /> equipment in"hand"position bypasses all permissives. <br /> All motor control centers will have provisions and space to be extended a minimum of 1 <br /> vertical section. <br /> 4.14 Motors <br /> This section addresses motors for BOP equipment. Motors will be the squirrel-cage <br /> induction type suitable for full-voltage across the line starting. The motor nameplate at <br /> service factor load will not be less than 1.15 times the maximum brake horsepower (KW) <br /> of the driven load. Motors will be provided with Class F insulation with Class B rise. <br /> Motor locked-rotor current will be limited to 650% of full load current at rated voltage. All <br /> medium voltage motors will be suitable for starting at 80% of the motor nameplate voltage. <br /> All motors rated above 200 hp will be rated 4000 V, will be weather-protected Type II <br /> (outdoor), Type I (indoor only), totally enclosed fan cooled (TEFC), or totally enclosed <br /> water air cooled (TEWAC), depending on application. Motors rated 4000 V will include <br /> two resistance temperature detectors (RTDs) per stator winding and one RTD for each <br /> sleeve bearing wired to a terminal block. <br /> All motors rated 3/4 to 200 hp and fractional horsepower reversing motors (e.g. electric <br /> actuators) will be rated 460V, totally-enclosed fan-cooled (TEFC), and will be designed in <br /> accordance with the IEEE 841 standard. <br /> Motors less than 3/4 hp and smaller will be rated 110 VAC. <br /> Motors rated 25 hp and above will have space heaters. The space heater will be serviceable <br /> or replaceable without disassembly of the motor. The space heater terminal box will be <br /> separate from the motor termination box. Where possible, the motor space heaters will be <br /> rated for 240 VAC but sized and energized at 120 VAC. Space heaters rated for 120VAC <br /> will also be allowed if 240VAC rated heaters are not available. <br /> Motors will be furnished with oversized cast iron terminal boxes and will be capable of <br /> rotation in 90-degree steps. 4000 V motors will be provided with two grounding pads. <br /> Antifriction bearings will be grease lubricated, self-lubricating, and regreasable. Anti- <br /> friction bearings will have a Llo bearing life of 100,000 hours. 4000 V motors will be <br /> equipped with vibration switches or probes when specified and wired out to a terminal box <br /> Lodi Energy Center 3.4-7 LEC AFC <br /> 071608 Rev.A <br />