UFC 3-555-01 Aircraft Point-of-Use Power Systems  

The purpose of this UFC is to provide technical requirements for the electrical design of specialized Point-of-Use (POU) power distribution systems for aircraft, and electrical power systems associated with aircraft hangars and aviation support facilities. This includes 400 Hertz, 270 VDC, and 28 VDC systems. 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.