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        1. NEMA
        2. Standards
        3. Technical Services
        4. Technical Field Representative Program
        5. Code Enforcement Officials
        • Northeast Technical Field Rep
        • Southern Technical Field Rep
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        • Code Adoption Resources
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        • The Technical Field Program: Serving NEMA Members and Promoting Public Safety

        Code Enforcement Officials

        This web page offers Building Code Officials, Electrical Inspectors, and others the capability to view NEMA Standards, guides, white papers, and Engineering Bulletins covering NEMA products ranging from Adjustable Speed Drive Systems to recommendations for Handling Water-Damaged Electrical Equipment. All of these documents are available for free download for printing or for saving as a file for future use. The web page also provides several useful links to:

        • NEMA Standards that are available for purchase,
        • The NEMA Field Representative Program, and
        • websites for other organizations that may be of interest.

        Please forward any suggestions for making this web page more valuable to webmaster.

        NEMA Materials

        • Limited-Service Controllers - by NEMA Members
        • Electrical Standards & Product Guide
        • Guidelines for Handling Water-Damaged Electrical Equipment

        Other Resources

        NEMA Field Representatives serve NEMA members by promoting the use and adoption of the National Electrical Code® (NEC®) and by monitoring regional developments of importance to the electroindustry.

        Sign up for NEMA press releases announcing the publication of new papers and Standards.

        Other Associations & Groups:

        • National Fire Protection Association (NFPA)
        • International Code Council (ICC)
        • International Association of Electrical Inspectors (IAEI)
        • Underwriters Laboratories Inc. (UL)
        • CSA International
        • Intertek ETL SEMKO

        Arc Flash

        Standards

        Guides and White Papers

         Arc-Flash Analysis—Utility System Parameters Critical for Accurate PPE
         Avoid Arc Flash Occurrences by Following Industry Standards

        Automation and Motor Control

        Standards

        Guides and White Papers

        Adjustable Speed Electrical Power Drive Systems, Part 1: General Requirements—Rating Specifications for Low Voltage Adjustable Speed D.C. Power Drive SystemsApplication Guide for AC Adjustable Speed Drive Systems

        Electrical Installation

        Standards

        Guides and White Papers

         Engineering Series Ratings: Is It Practical?
         Evaluating Water-Damaged Electrical Equipment
         Multiple Knockouts
         Knockout Diameters and Fitting Dimensions to Assure Mechanical and Electrical Continuity
         Hazards of Working Electrical Equipment Hot
         Electrical Installation Requirements: A Global Perspective
         A Brief Comparison of NEMA 250 and IEC 60529

        Enclosures

        Standards

        Guides and White Papers

         NEMA Enclosure Types
         A Brief Comparison of NEMA 250 and IEC 60529

        Exit Signs

        Standards

        Guides and White Papers

        Exit Sign Brightness for Visibility & Safety 

        Industrial Control and Systems

        Standards

        Guides and White Papers

        Industrial Control and Systems: General Requirements

         
        Industrial Control and Systems: Safety Guidelines for the Application, Installation, and Maintenance of Solid State Controls 
        Industrial Control and Systems: Preventive Maintenance of Industrial Control and Systems Equipment 
        Industrial Control and Systems Part 1: Electromechanical AC Transfer Switch Equipment  
        Industrial Control and Systems: AC Transfer Equipment — Part 2: Static AC Transfer Equipment 
        Industrial Control and Systems: Profiles of Networked Industrial Devices—Part 1: General Rules 
        Industrial Control and Systems: Application Guide for Electric Fire Pump Controllers 
        Industrial Control and Systems: Instructions for the Handling, Installation, Operation, and Maintenance of Electric Fire Pump Controllers Rated Not More than 600V 
        Industrial Control and Systems: Motion/Position Control Motors, Controls, and Feedback Devices 
        Industrial Control and Systems: Motor Control Centers 
        Industrial Control and Systems: Diagrams, Device Designations, and Symbols 
        AC Vacuum-Break Magnetic Controllers Rated 1500 Volts AC 
        Industrial Control and Systems: Controllers, Contactors, and Overload Relays, Rated Not More Than 2000 Volts AC or 750 Volts DC: Part 8 - Disconnect Devices for Use in Industrial Control Equipment 
        Industrial Control and Systems: Controllers, Contactors, and Overload Relays Rated 600 Volts 
        Industrial Control and Systems: Instructions for the Handling, Installation, Operation, and Maintenance of Motor Control Centers Rated Not More than 600 Volts 
        NEMA and IEC Devices for Motor Service—A Guide for Understanding the Differences 
        Industrial Control and Systems: Medium Voltage Controllers Rated 2001 to 7200 Volts AC 
        Industrial Control and Systems: Handling, Storage, and Installation Guide for AC General-Purpose Medium Voltage Contactors and Class E Controllers, 50 and 60 Hertz 
        Industrial Control and Systems: Terminal Blocks 
        Industrial Control and Systems: Typical Proximity Switch Specifications 
        Industrial Control and Systems: Additional Requirements for Proximity Switches Suitable for Use in Strong Magnetic Fields 
        Industrial Control and Systems: High Pressure Power Wash Test Procedure for Self-Contained Control-Circuit Devices 
        Application Information for Limit Switches 
        Industrial Control and Systems: Control Circuit and Pilot Devices 
        Industrial Control and Systems: Enclosures 
        Adjustable Speed Electrical Power Drive Systems, Part 2: General Requirements--Rating Specifications for Low Voltage Adjustable Frequency A.C. Power Drive Systems 
        Adjustable Speed Electrical Power Drive Systems: Part 4: General Requirements--Rating Specifications for A.C. Power Drive Systems Above 1000 V A.C. and not Exceeding 35 kV 
        Industrial Control and Systems: Adjustable-Speed Drives 
        Safety Standards for Construction and Guide for Selection, Installation, and Operation of Adjustable-Speed Drive Systems 

        Lamps and Lighting Systems

        Standards

        Guides and White Papers
        NEMA - Tungsten-Halogen Lamps (Bulbs): Ultraviolet, Rupture, and High Temperature RisksWhite Paper on Outdoor Lighting Issues
        Wiring Requirements for T-8 Lamps with Instant-Start BallastsGreen Marking of Lamps
        NEMA - Wiring Requirements for 2G11 Based T-5 Fluorescent Twin Lamps With Instant-Start BallastsRecommendations for the Care and Maintenance of High Intensity Metal Halide and Mercury Lighting in Schools
        Interaction of Infrared Controls and Electronic Compact Fluorescent LampsNEMA Guide to Lighting Controls
        Glossary of Terms Pertaining To Remote Illumination SystemsThe Labeling of Mercury Containing Lamps
        34 Watt Fluorescent Lamps And High Frequency Electronic BallastsFluorescent Lamps and the Environment
        Interaction of Infrared Controls and Fluorescent Lamp/Ballast Systems in Education FacilitiesImpact of Mercury Legislation on the Lighting Industry
        Ultraviolet Radiation From Fluorescent LampsManufacturer Take Back of Lamps
        Compact Fluorescent Lamps In Residences – Power Quality ImplicationsPin Based Compact Fluorescent Lamps
        Compatibility of Add-on Tube Guards with T-8 Fluorescent Lamps Operating on High Frequency Electronic BallastsAlternatives to Mercury-Containing Light Solutions
        A Guide for the Safe Use of Remote Illumination Systems Equipment, Including a Glossary of DefinitionsElectronic Ballast / Lighting Controls Compatibility Concerns Associated with Inrush Currents
        Guidelines on the Application of Dimming to High Intensity Discharge Lamps 
        Radioactive Substances In Compact Fluorescent Lamps 
        Consumer Guide for Four-Foot Fluorescent Bulbs 
        Compatibility of Fluorescent Lamps and Electronic Ballasts in Frequently Switched Applications

        Low Voltage Distribution Equipment

        Standards

        Guides and White Papers

        General Instructions for Proper Handling, Installation, Operation, and Maintenance of Busway Rated 600 Volts or LessMolded-Case Circuit Breakers Reduce Arc Flash Hazard Impact
        Instrucciones Generales Para el Manejo, Instalacion, Operacion y Mantenimiento de Electroductos Hasta 600 Volts Nominales o Menos 
        Application Information for Busway Rated 600 Volts or Less 
        Panelboards 
        General Instructions for Proper Installation, Operation, and Maintenance of Panelboards Rated 600 Volts or Less 
        Instrucciones Generales Para la Instalacion, Operacion y El Mantenimiento Correcto de Tableros de Alumbrado y Control Hasta 600 Volts Nominales o Menos 
        Enclosed and Miscellaneous Distribution Equipment Switches (600 Volts Maximum) 
        Molded Case Circuit Breakers and their Application  
        Guidelines for Inspection and Preventive Maintenance of Molded Case Circuit Breakers Used in Commercial and Industrial Applications 

        Miscellaneous

        Standards

        Guides and White Papers

         Safety Guide for Use of Extension Cords
         User Input to NEMA Standards (Guidelines for NEMA Subdivisions)
         Guidelines for Metric Conversion of NEMA Standards
         FCC Regulations Applicable to NEMA Products
         Phantom Voltages
         NEMA Policy on Adoption of the National Electrical Code
         Knockout Diameters and Fitting Dimensions to Assure Mechanical and Electrical Continuity
         The Strengths of an Effective Electrical Safety System
         NEMA Analysis of the Energy Policy Act of 1992: The Scope of Electric Motors Subject to Efficiency Standards on October 24, 1997
         Guide to Preparing a Design Proposal for Paralleling Customer Generation with an Electric Utility

        Motors

        Standards

        Guides and White Papers

        Information Guide for General Purpose Industrial AC Small and Medium Squirrel-Cage Induction Motor StandardsType 2 Motor Starter Protection Guide
        Energy Management Guide for Selection and Use of Fixed Frequency Medium AC Squirrel-Cage Polyphase Induction Motors 
        Energy Management Guide for Selection and Use of Single Phase Motors 

        Residential Controls

        Standards

        Guides and White Papers

        Residential Controls—Class 2 Transformers 
        Residential Controls—Electrical Wall-Mounted Room Thermostats 
        Residential Controls—Surface-Type Controls for Electric Storage Water Heaters 
        Residential Controls—Temperature Limit Controls for Electric Baseboard Heaters 
        Residential Controls: Hot Water Immersion Controls 
        Residential Controls: Line Voltage Integrally Mounted Thermostats for Electric Heaters 

        Smoke Alarms, CO Detectors

        StandardsGuides and White Papers
         Fire and Carbon Monoxide Safety Recommendations
         Guide for Proper Use of System Smoke Detectors
         NEMA Position on Compatibility between Smoke Alarms and AFCIs
         Quality Informational Guide for Automatic Fire Detection and Alarm Systems

        Wiring Systems

        Selection and Installation Guidelines for Fittings for Use with Non-flexible Electrical Metal Conduit or Tubing (Rigid Metal Conduit, Intermediate Metal Conduit, and Electrical Metallic Tubing)Cable Tray Span Specification
        Selection and Installation Guidelines For Fittings for Use With Flexible Electrical Conduit and CableUse of Anti-Short Bushings for Terminating Type MC Cables
        Selection and Installation Guidelines for Electrical Outlet BoxesNEMA Termination of Bonding Strip on Type AC Cable
        Application and Installation Guidelines for Armored Cable and Metal-Clad CableUse of Type NM-B Cable for Wiring of Residential Lighting Fixtures
        Application and Installation Guidelines for Nonmetallic-Sheathed CablesLength Limitations for FMC and LFMC.
        Application and Installation Guidelines for Flexible and Liquidtight Flexible Metal ConduitExpansion Joints for PVC Rigid Nonmetallic Conduit
        Fiberglass Cable Tray SystemsUser Guide to Product Specifications for Electrical Building Wire and Cable
        Metal Cable Tray Installation GuidelinesUser Guide to Product Specifications for Metal Electrical Conduit and Tubing
         Conduit-in-Casing Construction
         Solvent-Cementing Joints for PVC Rigid Nonmetallic Conduit, Duct, and Fittings

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