scope:

PURPOSE AND SCOPE.

The purpose of this UFC is to provide technical requirements for general aspects of the electrical design of projects. Apply the criteria provided in this UFC for the development of the plans, specifications, calculations, and Design/Build Request for Proposals (RFP). It serves as the minimum electrical design requirements for design-build and design-bid-build projects. Project conditions may dictate the need for a design that exceeds these minimum requirements.

UFC Hierarchy

This UFC provides the top-tier baseline requirements for electrical UFCs and is intended as a reference for all electrical work on projects. Figure 1-1 shows the relationship of this UFC to other related UFCs. They rely on this UFC for overall requirements regarding design analysis and documentation. There are existing individual service UFCs and other UFCs under development; these documents are identified in similar figures in Appendix B.

Upgrades and Modifications to Existing Systems

Modernization of electrical systems solely for the purpose of meeting design criteria in UFCs is not required. Upgrades or modifications to electrical systems should consider the design criteria in this UFC, but it is not intended that an entire facility or system require modernization solely because of a minor modification.

For minor projects, determine if the project will affect existing electrical system calculations such as by modifying circuit breaker settings. If any electrical system calculations are affected by the modification, update the calculations, including the arc flash calculation, as part of the project.

Note: Arc flash calculation updates are necessary for electrical safety.