The following work will be required to demolish and remove the existing infrastructure and install the new generator, transfer switch, 400A 3-phase panel, and the 100A subpanel at Fire Station #2. GENERATOR, ATS, 400A Panel 1. Demo and dispose of the existing generator and transfer switch. 2. Provide and install a new 150KW, natural gas fed, 3-phase 240vac, generator with 400A service entrance rated automatic transfer switch. 3. Demolish and dispose of existing concrete pad. (The current underground conduits will not be sufficient for the new emergency power feed to the ATS.) 4. Provide and install new concrete pad of sufficient size to have a 2.5’ perimeter around the new generator. Concrete pad shall be flat and level to within ½”, shall use 2,500 psi strength concrete, be reinforced with #6 rebar on 12” centers, and shall be 4” in thickness. Concrete pad shall be located in the general location of the existing pad. 5. Generator shall be grounded in accordance NFPA 70. 6. Demo and dispose of existing 400A panel and 100A sub-panel on same interior wall. 7. Provide and install trough style junction box at just above floor level to intercept all underground conduits. This trough will be used to route existing utility feeder wires to new ATS location on same wall and other branch circuit wires to terminations on new panel breakers. Utility feeder wires and any wires #8 AWG and larger will be spliced in the trough using insulated Polaris connectors. Any wires smaller than #8 AWG will be spliced with insulated barrel style stakons and taped with 3M 33+. 8. Provide and install new 400A, 3-phase, 4-wire, bolt in breaker, electrical panel with no less than the following breakers: (3) 1P 20A GFCI, (3) 2P 60A, (1) 1P 30A, (24) 1p 20A, (3) 100A 3P, & (1) 2P 20A. 9. Modify existing conduits and provide and install new conduits, wire, and terminations required for a properly functioning system that connects the new generator, ATS, and energizes all existing branch circuits. 10. Provide and install conduit, wire and terminations for any generator control circuits including but not limited to start, stop, batter charger, or water jacket heater.
