UNIFIED FACILITIES CRITERIA (UFC) ELECTRICAL ENGINEERING
UFC 3-501-01October 6, 2015Change 1, 01 November 2019UNIFIED FACILITIES CRITERIA (UFC)ELECTRICAL ENGINEERINGAPPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED
UFC 3-501-01October 6, 2015Change 1, 01 November 2019UNIFIED FACILITIES CRITERIA (UFC)ELECTRICAL ENGINEERINGAny copyrighted material included in this UFC is identified at its point of use.Use of the copyrighted material apart from this UFC must have the permission of thecopyright holder.U.S. ARMY CORPS OF ENGINEERSNAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity)AIR FORCE CIVIL ENGINEER CENTERRecord of Changes (changes are indicated by \1\ . /1/)Change No.1Date01 November2019LocationAdded Environmental Severity Classification andhumidity design requirements and updated corrosionprevention requirements in 1-3.1, 2-1.11 and AppendixF.This UFC supersedes UFC 3-501-01, dated 3 February 2010, with Changes 1-3.
UFC 3-501-01October 6, 2015Change 1, 01 November 2019FOREWORDThe Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and providesplanning, design, construction, sustainment, restoration, and modernization criteria, and appliesto the Military Departments, the Defense Agencies, and the DoD Field Activities in accordancewith USD (AT&L) Memorandum dated 29 May 2002. UFC will be used for all DoD projects andwork for other customers where appropriate. All construction outside of the United States isalso governed by Status of Forces Agreements (SOFA), Host Nation Funded ConstructionAgreements (HNFA), and in some instances, Bilateral Infrastructure Agreements (BIA.)Therefore, the acquisition team must ensure compliance with the most stringent of the UFC, theSOFA, the HNFA, and the BIA, as applicable.UFC are living documents and will be periodically reviewed, updated, and made available tousers as part of the Services’ responsibility for providing technical criteria for militaryconstruction. Headquarters, U.S. Army Corps of Engineers (HQUSACE), Naval FacilitiesEngineering Command (NAVFAC), and Air Force Civil Engineer Center (AFCEC) areresponsible for administration of the UFC system. Defense agencies should contact thepreparing service for document interpretation and improvements. Technical content of UFC isthe responsibility of the cognizant DoD working group. Recommended changes with supportingrationale should be sent to the respective service proponent office by the following electronicform: Criteria Change Request. The form is also accessible from the Internet sites listed below.UFC are effective upon issuance and are distributed only in electronic media from the followingsource: Whole Building Design Guide web site http://dod.wbdg.org/.Refer to UFC 1-200-01, General Building Requirements, for implementation of new issuanceson projects.AUTHORIZED BY:JAMES C. DALTON, P.E.JOSEPH E. GOTT, P.E.Chief, Engineering and ConstructionU.S. Army Corps of EngineersChief EngineerNaval Facilities Engineering CommandRANDY E. BROWN, SESMICHAEL McANDREWDirectorAir Force Civil Engineer Center(DASD)Facilities Investment and ManagementOffice of the Assistant Secretary of Defense(Energy, Installations, and Environment)
UFC 3-501-01October 6, 2015Change 1, 01 November 2019UNIFIED FACILITIES CRITERIA (UFC)NEW DOCUMENT SUMMARY SHEETDocument: UFC 3-501-01, Electrical EngineeringSuperseding: UFC 3-501-01, Electrical Engineering, with Change 3, 1 July 2012.Description: This UFC 3-501-01 provides electrical engineering design and analysiscriteria for design-build and design-bid-build projects. It is organized to provide the toplevel minimum mandatory electrical requirements and refers to other UFCs asappropriate.Reasons for Document: Provides technical requirements for electrical system design criteria. Establishes design analysis requirements in support of design activities. Defines minimum requirements for design drawings in terms of drawing typesand content. Provides links to related material in other UFCs.Impact: There are negligible cost impacts associated with this UFC. However, thefollowing benefits should be realized. Standardized guidance has been prepared to assist electrical engineers in thedevelopment of the plans, specifications, calculations, and Design/BuildRequest for Proposals (RFP). This UFC coordinates with all electrical-related UFCs and providesrequirements consistent with the other electrical-related UFCsUnification Issues Section 2-1.3: The Army and Navy allow hot capping of conductors duringconstruction to maintain an energized circuit. Section 2-2.5: For cathodic protection systems, comply with UFC 3-570-02Nfor the Navy and UFC 3-570-02A for the Army. The unified UFC is underdevelopment and is at the 90% review level. Section 3-3: For the Navy, additionally comply with FC 1-300-09N for specificdrawing requirements and drawing phases.
UFC 3-501-01October 6, 2015Change 1, 01 November 2019TABLE OF CONTENTSCHAPTER 1 INTRODUCTION . 11-1PURPOSE AND SCOPE. . 11-1.1UFC Hierarchy . 11-1.2Upgrades and Modifications to Existing Systems . 11-2APPLICABILITY. . 11-3GENERAL BUILDING REQUIREMENTS. . 21-3.1Environmental Severity and Humid Locations . 21-4WAIVER AND EXEMPTION PROCESS. . 41-5REFERENCES. . 41-6DESIGN STANDARDS. 41-7CYBERSECURITY. . 51-8PERMITS – CONSTRUCTION, ENVIRONMENTAL, AND OTHER. . 5CHAPTER 2 DESIGN REQUIREMENTS . 72-1GENERAL. . 72-1.1Hazardous Materials and Waste, and Controlled Materials. . 72-1.2Removal of Existing Cables and Conductors. . 82-1.3Hot Caps and Removal of T-Splices Inside Manholes. . 82-1.4Modification to Existing Electrical Equipment. 82-1.5Salvaged Materials and Equipment. . 82-1.6Scheduling and Sequencing Outages. . 92-1.7Calculations. . 92-1.8Energy Efficiency and Sustainable Design. . 92-1.9Antiterrorism and Physical Security. . 92-1.10Facility Systems Safety. . 102-1.11Corrosive and High Humidity Areas. . 102-1.12Arc Flash Warning Labels. . 112-1.13NFPA 70 (NEC) / IEEE C2 (NESC) Design Interface Points. . 112-1.14Utility Interactive Systems (Microgrids). . 142-2SITE EXTERIOR POWER DISTRIBUTION SYSTEMS. 142-2.1Exterior Power Distribution Systems, Including Housing. . 142-2.2Dockside Utilities for Ship Service. . 14i
UFC 3-501-01October 6, 2015Change 1, 01 November 20192-2.3Exterior Lighting Systems. . 142-2.4Airfield Lighting. . 142-2.5Cathodic Protection Systems. . 142-2.6High-Altitude Electromagnetic Pulse (HEMP) Shielded Systems –Exterior. . 152-2.7Generators. . 152-3INTERIOR DISTRIBUTION SYSTEMS. . 152-3.1Interior Electrical Systems. . 152-3.2Interior Lighting Systems. . 152-3.3Emergency and Standby Systems. . 152-3.4Sensitive Compartmented Information Facilities (SCIF). . 152-3.5Hazardous Locations. . 152-3.6Battery Areas and Battery Racks. . 152-3.7HEMP Shielded Systems – Interior. . 162-4COMMUNICATIONS AND SECURITY. . 162-4.1Telecommunication Systems. . 162-4.2Television Systems. . 162-4.3Community Antenna Television (CATV) Systems. 162-4.4Electronic Security Systems (ESS). . 172-4.5Mass Notification Systems. . 17CHAPTER 3 DESIGN ANALYSIS AND DOCUMENTATION . 183-1GENERAL. . 183-2DESIGN ANALYSIS. . 183-2.1Basis of Design. . 183-2.2Electrical Calculations – Overview. . 213-2.3Load Analysis. . 233-2.4Short Circuit Analysis. . 263-2.5Protective Device Time-Current Coordination Study. . 273-2.6Arc Flash Analysis. . 293-2.7Voltage Drop. . 313-2.8Motor Starting/Flicker Analysis. . 313-2.9Lighting. . 313-2.10Underground Structures Design. . 31ii
UFC 3-501-01October 6, 2015Change 1, 01 November 20193-2.11Cable Pulling Tension Calculations. . 313-2.12Calculations for Directional Boring. . 323-2.13Sag, Tension, and Guying Analysis. . 323-2.14Cathodic Protection Calculations. . 323-2.15Lightning Protection Calculations. 323-2.16CATV Network Loss Calculations. . 323-2.17ESS Calculations. . 323-2.18Renewable Energy System Calculations. . 323-3DRAWING REQUIREMENTS. . 333-3.1Legends and Abbreviations. . 343-3.2Site Plans. 343-3.3Demolition Plans. . 363-3.4Lighting Plans and Details. . 373-3.5Power Plans. 383-3.6Communication Plans. . 383-3.7Grounding Plan. . 383-3.8Roof Plan. . 383-3.9Lightning Protection Plan. . 383-3.10Hazardous Location Plan. . 383-3.11Power One-Line/Riser Diagrams. . 393-3.12Telecommunications Riser Diagram. . 413-3.13Intercommunication/Paging Riser Diagram. 413-3.14Fire Alarm Riser Diagram. . 413-3.15Special Systems Riser Diagrams. . 413-3.16Schedules and Elevations. 413-3.17Details/Diagrams. . 433-3.18Grounding Diagrams. . 433-3.19Cathodic Protection Plans and Details. . 43APPENDIX A REFERENCES . 44APPENDIX B ELECTRICAL UFCS . 48APPENDIX C TRI-SERVICE ELECTRICAL WORKING GROUP TECHNICALPAPERS . 52APPENDIX D DESIGN DATA TABLES . 54iii
UFC 3-501-01October 6, 2015Change 1, 01 November 2019APPENDIX E ELECTRICAL ENGINEERING PRELIMINARY CONSIDERATIONS . 58APPENDIX F GLOSSARY . 80F-1ACRONYMS . 80F-2DEFINITION OF TERMS . 84FIGURESFigure 1-1 Electrical UFC Delineation . 3Figure 2-1 Illustration of NFPA 70 Service Point and NFPA 70 / IEEE C2Demarcation . 13Figure B-1 Additional Electrical-Related UFCs . 49Figure B-2 Additional Electrical-Related UFCs. 50TABLESTable D-1 Typical Loading For Personal Computer Systems. 54Table D-2 Load Data For Preliminary Demand Calculations . 54Table D-3 Dwelling Demand kVA per A/C Size . 55Table D-4 Typical A/C Size for Dwelling Units . 55Table D-5 Demand for Electric Strip Heat . 55iv
UFC 3-501-01October 6, 2015Change 1, 01 November 2019CHAPTER 1 INTRODUCTION1-1PURPOSE AND SCOPE.The purpose of this UFC is to provide technical requirements for general aspects of theelectrical design of projects. Apply the criteria provided in this UFC for the developmentof the plans, specifications, calculations, and Design/Build Request for Proposals(RFP). It serves as the minimum electrical design requirements for design-build anddesign-bid-build projects. Project conditions may dictate the need for a design thatexceeds these minimum requirements.1-1.1UFC HierarchyThis UFC provides the top-tier baseline requirements for electrical UFCs and isintended as a reference for all electrical work on projects. Figure 1-1 shows therelationship of this UFC to other related UFCs. They rely on this UFC for overallrequirements regarding design analysis and documentation. There are existingindividual service UFCs and other UFCs under development; these documents areidentified in similar figures in Appendix B.1-1.2Upgrades and Modifications to Existing SystemsModernization of electrical systems solely for the purpose of meeting design criteria inUFCs is not required. Upgrades or modifications to electrical systems should considerthe design criteria in this UFC, but it is not intended that an entire facility or systemrequire modernization solely because of a minor modification.For minor projects, determine if the project will affect existing electrical systemcalculations such as by modifying circuit breaker settings. If any electrical systemcalculations are affected by the modification, update the calculations, including the arcflash calculation, as part of the project.Note: Arc flash calculation updates are necessary for electrical safety.1-2APPLICABILITY.Compliance with this UFC is mandatory for the design of electrical systems at allfacilities and bases.Facilities located outside of the United States must also comply with the applicable hostnation standards; refer to UFC 3-510-01 for additional information. Different voltages,frequencies, and grounding conventions often apply in other host nations; however,follow the design principles provided in this UFC to the extent practical, as well as therequirements provided in UFC 1-202-01, Host Nation Facilities in Support of MilitaryOperations. U.S. Department of Commerce International Trade Administrationdocument, Electric Current Abroad, provides additional information and can be obtainedat ent2002final.pdf.1
UFC 3-501-01October 6, 2015Change 1, 01 November 20191-3GENERAL BUILDING REQUIREMENTS.UFC 1-200-01, DoD Building Code (General Building Requirements), providesapplicability of model building codes and government-unique criteria for typical designdisciplines and building systems, as well as for accessibility, antiterrorism, security,sustainability, and safety. Use this UFC in addition to UFC 1-200-01 and the UFCs andgovernment criteria referenced therein.1-3.1\1\ Environmental Severity and Humid Locations.In corrosive and humid environments, provide design detailing, and use materials,systems, components, and coatings that are durable and minimize the need forpreventative and corrective maintenance over the expected service life of thecomponent or system. UFC 1-200-01, section titled “Corrosion Prone Locations”identifies corrosive environments and humid locations requiring special attention. UFC1-200-01, section titled “Requirements for Corrosion Prone Locations” providesexamples of necessary actions. To determine Environmental Severity Classifications(ESC) for specific project locations refer to UFC 1-200-01 Appendix titled“Environmental Severity Classifications (ESC) for DoD Locations”. /1/2
UFC 3-501-01October 6, 2015Change 1, 01 November 2019Figure 1-1 Electrical UFC DelineationUFC 1-200-02High Performance andSustainable BuildingRequirementsUFC 1-200-01General BuildingRequire
UFC 3-501-01 October 6, 2015 Change 1, 01 November 2019 UNIFIED FACILITIES CRITERIA (UFC) NEW DOCUMENT SUMMARY SHEET Document: UFC 3-501-01, Electrical Engineering Superseding: UFC 3-501-01, Electrical Engineering, with Change 3, 1 July 2012. Description: This UFC 3-501-01 provides electrical engineering design and analysis criteria for design-build and design-bid-build projects.
UFC 3-601-02 7 October 2021 UNIFIED FACILITIES CRITERIA (UFC) REVISION SUMMARY SHEET Document: UFC 3-601-02, Fire Protection Systems Inspection, Testing, and Maintenance Superseding: UFC 3-601-02, dated 8 September 2010, and all subsequent changes. Description of Changes: This Unified Facilities Criteria (UFC) provides best practice maintenance methods from the DoD, other government agencies .
UFC 4-730-10 8 May 2019 Change 1, 11 June 2021 UNIFIED FACILITIES CRITERIA (UFC) NEW DOCUMENT SUMMARY SHEET Document: UFC 4-730-10, Fire Stations Superseding: UFC 4-730-10, Fire Stations, dated 15 June 2006, and FC 4- 730-10N, Navy and Marine Corps Fire Stations, dated 1 December 2013. Description: This UFC provides criteria for planning and design of fire stations.
UFC 1-200-01 8 October 2019 Change 1, 1 Oct 2020 UNIFIED FACILITIES CRITERIA (UFC) REVISION SUMMARY SHEET Document: UFC 1-200-01, DoD BUILDING CODE Superseding: UFC 1-200-01, DoD BUILDING CODE (GENERAL BUILDING REQUIREMENTS), dated 20 June 2016, with Change 2, dated 01 Nov 2018 Description: This update to UFC 1-200-01 represents the Tri-Services effort to bring
UFC 3-530-01 22 August 2006 Unified Facilities Criteria (UFC) New Document Summary Sheet Subject: UFC-3-530-01, Design: Interior, Exterior Lighting and Controls Description of Change: UFC-3-530-01 is a new Unified Facilities Criteria document that describes the criteria necessary to create effective and
UFC 3-201-02 29 April 2020 Change 1, 09 February 2021 UNIFIED FACILITIES CRITERIA (UFC) REVISION SUMMARY SHEET Document: UFC 3-201-02, Landscape Architecture, unifies the landscape architectural criteria for DoD. Superseding: UFC 3-201-02, 23 February 2009, including change 1 November 2009 Description: This document assimilates and applies current policies, technology, and
UFC 3-530-01 22 August 2006 Unified Facilities Criteria (UFC) New Document Summary Sheet Subject: UFC-3-530-01, Design: Interior, Exterior Lighting and Controls Description of Change: UFC-3-530-01 is a new Unified Facilities Criteria document that describes the criteria necessary to create effective and efficient lighting designs for the wide
UFC 3-570-01 28 November 2016 Change 1, 14 January 2019 . UNIFIED FACILITIES CRITERIA (UFC) NEW SUMMARY SHEET . Document: UFC 3-570-01, Cathodic Protection Superseding: UFC
The American Board of Radiology . ATTN: Valerie P. Jackson, M.D. Executive Director . 5441 E. Williams Circle . Tucson, Arizona 85711-7412 . SUBJECT: AMERICAN BOARD OF RADIOLOGY, REQUEST FOR ADDITIONAL INFORMATION REGARDING RECOGNITION OF NEW BOARD CERTIFICATES AND MODIFICATION OF THE CURRENT . RECOGNITION OF CERTIFICATION IN DIAGNOSTIC RADIOLOGY . Dear Dr. Jackson, I am writing in response to .
