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k <br /> BLACK&VEATCH <br /> CONFERENCE MEMORANDUM Page 2 <br /> City of Decatur, IL B&V Project 66558.405 <br /> NIt�AtA Ramnval F�rili4v <br /> - ---"--'+ JUIy IV� LVV 1 <br /> Switch�aar 11Anrl:f:rw+�n^� <br /> WTP's staff requests to maintain all major electrical gear in one room. The Nitrate Removal <br /> Facility transformers will be connected to the engine-generator by a series of loop switches. This <br /> will maintain the integrity of the redundant system. Modifications will not be made to the existing <br /> switchgear nor will non-standard distribution equipment be used. Attached are one-line diagrams <br /> and sketches of the proposed solution. <br /> The�e is a City ordinance that requires all incoming services to a building be provided with a <br /> means of disconnect within 10' of entering a building. Due to the existing underground conditions <br /> in the area of the transformers, conduits from the plant transformers to the feeder contactors will <br /> be routed overhead. In order to coordinate with the engine-generator and office expansion <br /> projects. They will have to enter from the west wall instead of wrapping around the building and <br /> enter on the south wall. This will shorten the distance the conduits will have to travel inside the <br /> building. The wall will have to be core drilled. <br />