specifications - FAACO - Federal Aviation Administration Contract ...

PART 2.00PRODUCTSFTWIC-2235June 20092.01 CIRCUIT BREAKER DISTRIBUTION PANELBOARDS:A. Circuit breakers shall be full function electronic trip molded case circuit breakers withGround Fault Protection for larger than 250 ampere and thermal magnetic molded casecircuit breakers for 250 ampere or less unless noted otherwise on the drawings. Circuitbreakers shall be equipped with individually insulated, braced and protected connectorsto the main bus. The front surface of all circuit breakers shall be flush with each other.Permanent, individual circuit numbers shall be affixed to each breaker in a commonposition. Tripped indication shall be clearly indicated by the breaker handle between the"ON" and "OFF" position. Space positions indicated on the plans shall be so that theadditional connectors or bus will not be required to add breakers.B. Each panelboard shall have a short circuit current rating equal to or greater than the faultcurrent available at each panel but not less than 42,000 RMS symmetrical amperes.Series rating of breakers shall not be permitted. Panelboards shall be marked with theirmaximum short circuit current rating at the supply voltage and bear the applicable U.L.label.C. Panelboards shall be general purpose and suitable for surface or flush mounting asindicated on plans. The panelboard assembly shall be enclosed in a steel cabinet of therigidity and gauge specified in UL Standard 50 for cabinets. The size of wiring guttersshall be in accordance with UL Standard 67. The minimum size of side wiring guttersshall be four inches for panels up to and including 100 amperes panels, six inches forpanels over 100 ampere and up to 225 amperes, and eight inches for power feeders over225 amperes and up to 600 amperes. Doors shall have flush type cylinder locks andcatches. Doors over 48" inches long shall be equipped with a three point latch and vaultlock. Locks shall be keyed alike, and two keys shall be furnished with each lock.Panelboards shall have a full piano hinged front cover with a piano hinged door in thatcover for access to circuit breaker switches. All door hinges shall be concealed. The endwalls shall be removable. Fronts shall be of a code gauge steel and finished with rustinhibitingprimer and gray baked enamel.D. The panelboard interior assembly shall be dead front with the panelboard front removed.Main lugs or main breakers shall have barriers on five sides. The barrier in the front ofthe main lugs shall be hinged to a fixed part of the interior. The end of the bus structureopposite the mains shall have barriers.E. Busing shall be copper. Bus capacity shall be as indicated on the drawings. Where buscapacity is not indicated on the drawings, the capacity shall be equal to or greater than thepanelboard feeder overcurrent protective device. Circuit breaker current carryingconnections shall be bolted. Bus bar connections to branch circuit breakers shall be ofthe sequence phase type. The branch circuits shall be connected to the individual circuitbreakers as indicated on the drawings. The neutral bus shall be insulated from allpanelboards except where the panelboard is used as the service disconnecting means. Allpanelboards shall have an uninsulated ground bus that is separate from the neutral bus.The ground bus shall be securely bonded to the cabinet and adequately sized for thepanelboard capacity. The ground bus shall only be bonded to the neutral bus at theservice disconnecting means. Where provisions for "future" or "space" is noted on the16163-2