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 Due to operational considerations, it may be necessary to provide an uninterruptible power
supply (UPS) for use during generator starting and load transfer. The UPS system would
support any computerized equipment to avoid power disruption. In accordance with TM5-
811-1, UPS will not normally be used for security lighting. An UPS system designed for
computer loads will not perform satisfactorily for lighting applications. If the installation
requires the use of UPS, the design should clearly identify the nonlinear nature and switching
patterns of the load to be served (5, 11-5). The sites of ECFs are commonly congested and
limited in size. Therefore, transformers provided for ECFs should be provided with less
flammable insulating fluid in order to facilitate the placement of the transformer closer to
structures located in the ECF.
Continue infrastructure
to additional controls or
active vehicle barrier
systems
Handhole
Ductbank
Continue infrastructure
to additional controls or
active vehicle barrier
systems
Figure 4.5 Typical Locations for Provision of Future Power/Control Connections
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