Laserfiche WebLink
City of Everett 26 24 16 -4 <br /> Inductive Charging Infrastructure for Everett Transit <br /> 1. Peak Surge Current Rating: Minimum single-pulse surge current withstand rating <br /> per phase may not be less than 100 kA. Peak surge current rating must be <br /> arithmetic sum of ratings of individual MOVs in given mode. <br /> 2. Protection modes and UL 1449 VPR for grounded wye circuits with 480Y/277 V <br /> 3-phase, four-wire circuits may not exceed the following: <br /> a. Line to Neutral: 1200 V for 480Y/277 V <br /> b. Line to Ground: 1200 V for 480Y7 V <br /> c. Neutral to Ground: 1200 V for 480Y/277 V <br /> d. Line to Line: 2000 V for 480Y/277 V <br /> 3. Protection modes and UL 1449 VPR for 240/120 V, single-phase, three-wire <br /> circuits may not exceed the following: <br /> a. Line to Neutral: 700 V. <br /> b. Line to Ground: 700 V. <br /> c. Neutral to Ground: 700 V. <br /> d. Line to Line: 1200 V. <br /> 4. SCCR: Exceed 200 kA. <br /> 5. (nominal Rating: 20 kA. <br /> F. Buses: <br /> 1. Copper phase and neutral buses; 200 percent capacity neutral bus and lugs. <br /> 2. Copper equipment and isolated ground buses. <br /> 2.2 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES <br /> A. MCCB: Comply with UL 489, with interrupting capacity to meet available fault currents <br /> (fully rated). <br /> 1. Thermal-Magnetic Circuit Breakers: <br /> a. Inverse time-current element for low-level overloads. <br /> b. Instantaneous magnetic trip element for short circuits. <br /> c. Adjustable magnetic trip setting for circuit-breaker frame sizes 250 A and <br /> larger. <br /> 2. Adjustable Instantaneous-Trip Circuit Breakers: Magnetic trip element with front- <br /> mounted, field-adjustable trip setting. <br /> 3. Electronic Trip Circuit Breakers: <br /> a. RMS sensing. <br /> b. Field-replaceable rating plug or electronic trip. <br /> c. Digital display of settings, trip targets, and indicated metering displays. <br /> d. Multi-button keypad to access programmable functions and monitored <br /> data. <br /> e. Ten-event, trip-history log. Each trip event must be recorded with type, <br /> phase, and magnitude of fault that caused trip. <br /> f. Integral test jack for connection to portable test set or laptop computer. <br /> g. Field-Adjustable Settings: <br /> 26 24 16 -4 PANELBOARDS <br />