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City of Everett 26 24 16 - 5 <br /> Inductive Charging Infrastructure for Everett Transit <br /> 1) Instantaneous trip. <br /> 2) Long- and short-time pickup levels. <br /> 3) Long- and short-time adjustments. <br /> 4) Ground-fault pickup level, time delay, and I squared T response. <br /> 4. Current-Limiting Circuit Breakers: Frame sizes 400 A and smaller; let-through <br /> ratings less than NEMA FU 1, RK-5. <br /> 5. GFCI Circuit Breakers: Single- and double-pole configurations with Class A <br /> ground-fault protection (6 mA trip). <br /> 6. GFEP Circuit Breakers: Class B ground-fault protection (30 mA trip). <br /> 7. MCCB Features and Accessories: <br /> a. Standard frame sizes, trip ratings, and number of poles. <br /> b. Breaker handle indicates tripped status. <br /> c. UL listed for reverse connection without restrictive line or load ratings. <br /> d. Lugs: Mechanical style, suitable for number, size, trip ratings, and <br /> conductor materials. <br /> e. Ground-Fault Protection: Integrally mounted relay and trip unit with <br /> adjustable pickup and time-delay settings, push-to-test feature, and <br /> ground-fault indicator. <br /> f. Shunt Trip: 120 V trip coil energized from separate circuit, set to trip at 75 <br /> percent of rated voltage. <br /> g. Handle Padlocking Device: Fixed attachment, for locking circuit-breaker <br /> handle in on or off position. <br /> h. Handle Clamp: Loose attachment, for holding circuit-breaker handle in on <br /> position. <br /> i. Undervoltage Trip: Set to operate at 35 to 75 percent of rated voltage with <br /> field-adjustable 0.1-to 0.6-second time delay. <br /> j. Rating Plugs: Three-pole breakers with ampere ratings greater than 150 A <br /> must have interchangeable rating plugs or electronic adjustable trip units. <br /> k. Auxiliary Contacts: Two SPDT switches with "a" and "b" contacts; "a" <br /> contacts mimic circuit-breaker contacts and "b" contacts operate in reverse <br /> of circuit-breaker contacts. <br /> I. Alarm Switch: Single-pole, normally open contact that actuates only when <br /> circuit breaker trips. <br /> m. Key Interlock Kit: Externally mounted to prohibit circuit-breaker operation; <br /> key must be removable only when circuit breaker is in off position. <br /> n. Zone-Selective Interlocking: Integral with electronic trip unit; for interlocking <br /> ground-fault protection function with other upstream or downstream <br /> devices. <br /> PART 3 - EXECUTION <br /> 3.1 EXAMINATION <br /> A. Verify actual conditions with field measurements prior to ordering panelboards to verify <br /> that equipment fits in allocated space in, and comply with, minimum required <br /> clearances specified in NFPA 70. <br /> B. Receive, inspect, handle, and store panelboard in accordance with NECA 407. <br /> 26 24 16 - 5 PANELBOARDS <br />