CRE was contracted by the City of Phoenix to provide electrical engineering construction documents for the necessary modifications at the North and South Vaults required to accommodate the installation of a new ADB ALCMS to integrate with the Center Vault ALCMS. Interior vault renovations included replacement of thirty six constant current regulators (CCRs), required equipment additions to the existing ADB CCRs, and modifications to the ATCT ALCMS equipment installation. The project challenge was to maintain minimal disruption to the airfield lighting systems. This need necessitated the innovative design of a temporary, mobile, airfield lighting vault to be utilized during the construction of the modifications to the North and South Vaults. The temporary vault housed fourteen CCRs, power distribution panels and disconnects, A/C unit, lighting and receptacles all within a fifty foot enclosed cargo trailer which was transported between the North and South Vault during construction. The temporary vault was connected to the airfield lighting circuits and the existing vault standby generator to operate the airfield lighting systems so that each vault could be taken off-line while the electrical modifications, testing and commissoning of the ALCMS occurred, which spanned a two week period per vault. CRE develpoded a detailed meticulous construction phasing plan which minimized the total airfield lighting system downtime at each vault to under a four hour period. The temporary vault is now maintained by PSHIA for future use at any of the three Phoenix airports. Services included design and construction administration.
CR Engineers, Inc. received the “American Council of Engineering Companies of Arizona, Engineering 2013 Engineering Excellence Honor Award” for this project.
