specifications - FAACO - Federal Aviation Administration Contract ...

PART 2.00PRODUCTSFTWIC-2235June 20092.01 MANUFACTURED PRODUCTS:A. Panelboards shall consist of a box, front, interior and circuit protective devices and shallbe manufactured in accordance with NEMA PB1 and bearing the applicable UL labels.B. Panelboards shall be four wire three phase as scheduled or required. Panelboards shall begeneral purpose and suitable for surface mounting. Panelboards shall contain sequencestyle busing and full capacity neutral, composed of an assembly of bolt-on, molded case,automatic breakers with thermal and an instantaneous, magnetic trip in each pole and atrip-free position separate from either the "On" or the "Off" positions. All circuitbreakers shall have a trip indicating feature. Two and three pole circuit breakers shallsimultaneously open all poles. Circuit breakers, molded case and branch circuits shall bein accordance with Fed. Spec. W-C-375.C. The panelboard and circuit breaker interrupting capacities and rating shall be equal to orgreater than the fault current available to each panelboard. Series ratings of breakersshall not be permitted.D. Molded case circuit breakers shall be bolt-on type thermal magnetic trip circuit breakers,with internal common trip mechanism. Single pole circuit breakers serving fluorescentlighting loads shall have the SWD marking. Circuit breakers serving air conditioningbranch loads shall be UL listed as type HACR. Single pole breakers shall be a full sizemodule, and two and three pole breakers shall be sized in even multiples of a single polebreaker. Devices with an adjustable magnetic trip shall be factory set to the "low" valueunless indicated otherwise on the plans. All circuit breakers and the panelboards inwhich the breakers are installed shall be made by the same manufacturer.E. The voltage rating, phase, number of wires and ampere rating shall be as indicated andscheduled on the plans.F. The panelboard box shall be fabricated of code gauge, galvanized sheet steel inaccordance with UL standards and have turned edges around the front for rigidity andfrontal clamping. Provide standard knockouts on the panel enclosures.G. The panelboard front shall be fabricated of sheet steel and finished with a baked on grayenamel over a rust inhibitor. Panelboards shall have a full piano hinged front cover witha piano hinged door in that cover for access to circuit breaker switches. All door hingesshall be concealed. Doors shall have flush type cylinder locks and catches. Panelboardlocks shall be master keyed, with two keys furnished for each panel board. The directoryshall be arranged so that the typed entries simulate circuit breaker positions in thepanelboard. Directories shall be type written to indicate the load served by each circuitand shall be mounted on the inside of the door in a holder with a protective covering.H. The interior of the panelboard shall consist of a factory-assembled, rigid framesupporting the rectangular bus, the mains and the neutral bar.I. Busing shall be copper and arranged for sequential phasing throughout. The bus bar shallbe sized so that the temperature rise is limited in accordance with NEMA standards. Buscapacity shall be as indicated on the drawings. Where bus capacity is not indicated on16470-2