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6.7 Utility Coordination and Site Considerations

Power Company Coordination. See Chapter 2: Site Planning and Landscape Design, Site Utilities, Utilities Services.

This data must be established prior to initial system design. Electrical load estimates must be prepared in conjunction with utility company discussions to establish the capacity of the new electrical services.

The service entrance location for commercial electrical power should be determined concurrently with the development of conceptual design. Space planning documents and standards for equipment furnished by utility companies should be incorporated into the concept design. Locations for transformers, vaults, meters and other utility items must be coordinated with the architectural design to avoid detracting from the building’s appearance.

Site Considerations. The routing of site utilities and location of manholes should be determined early in the design process.

It is desirable to have the utility company furnish power at the main utilization voltage, i.e., 480/277V or 208/120V (for small buildings). GSA prefers that the utility company own and maintain the transformers.

In the case of large buildings or buildings with large footprints, it may be necessary to have more than one service. In large office buildings and in campus situations, it may also be necessary to distribute medium voltage power. If available, medium voltage, up to 15KV, should be used for primary power distribution to substations.

Communications Service Coordination. The Architect/Engineer shall coordinate with the client agency to determine the enclosure and pathway requirements for telecom systems. The Scope of Services varies with each project; it includes as a minimum design of the infrastructure (pathway and enclosure) and may include full design and specification of the telecom system.

The Federal Triangle, Washington, D.C.
The Federal Triangle, Washington, DC

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