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City of Everett 26 05 73.16 - 6 <br /> Inductive Charging Infrastructure for Everett Transit <br /> 13. Busway manufacturer and model designation, current rating, impedance, lengths, <br /> size, and conductor material. <br /> 14. Motor horsepower and NEMA MG 1 code letter designation. <br /> 15. Low-voltage cable sizes, lengths, number, conductor material, and conduit <br /> material (magnetic or nonmagnetic). <br /> 16. Medium-voltage cable sizes, lengths, conductor material, cable construction, <br /> metallic shield performance parameters, and conduit material (magnetic or <br /> nonmagnetic). <br /> 17. Data sheets to supplement electrical distribution system one-line diagram, cross- <br /> referenced with tag numbers on diagram, showing the following: <br /> a. Special load considerations, including starting inrush currents and frequent <br /> starting and stopping. <br /> b. Transformer characteristics, including primary protective device, magnetic <br /> inrush current, and overload capability. <br /> c. Motor full-load current, locked rotor current, service factor, starting time, <br /> type of start, and thermal-damage curve. <br /> d. Generator thermal-damage curve. <br /> e. Ratings, types, and settings of utility company's overcurrent protective <br /> devices. <br /> f. Special overcurrent protective device settings or types stipulated by utility <br /> company. <br /> g. Time-current-characteristic curves of devices indicated to be coordinated. <br /> h. Manufacturer, frame size, interrupting rating in amperes root mean square <br /> (rms) symmetrical, ampere or current sensor rating, long-time adjustment <br /> range, short-time adjustment range, and instantaneous adjustment range <br /> for circuit breakers. <br /> i. Manufacturer and type, ampere-tap adjustment range, time-delay <br /> adjustment range, instantaneous attachment adjustment range, and current <br /> transformer ratio for overcurrent relays. <br /> j. Switchgear, switchboards, motor-control centers, and panelboards <br /> ampacity, and SCCR in amperes rms symmetrical. <br /> k. Identify series-rated interrupting devices for condition where available fault <br /> current is greater than interrupting rating of downstream equipment. Obtain <br /> device data details to allow verification that series application of these <br /> devices complies with NFPA 70 and UL 489 requirements. <br /> 3.3 COORDINATION STUDY <br /> A. Comply with IEEE 242 for calculating short-circuit currents and determining <br /> coordination time intervals. <br /> B. Comply with IEEE 399 for general study procedures. <br /> C. Base study on device characteristics supplied by device manufacturer. <br /> D. Extent of electrical power system to be studied is indicated on Drawings. <br /> E. Begin analysis at service, extending down to system overcurrent protective devices as <br /> follows: <br /> 1. To normal system low-voltage load buses where fault current is 5 kA or less. <br /> 2. Exclude equipment supplied by single transformer smaller than 75 kVA. <br /> 26 05 73.16 - 6 COORDINATION STUDIES <br />