NFPA 70 National Electrical Code 2020 Edition with Index Tabs

Description: About This ProductThe code you know and use—revamped to keep pace with ever-evolving electrical hazards and challenges.NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. Stay up to date as you design, install, and inspect with the most current requirements. The NEC has been revised and expanded to stay in sync with industry practices, emerging trends, and the development and introduction of technologies. The document is completely reorganized for improved ease of use and features an expanded Article 100 that consolidates all the code's defined terms in one place to help you quickly locate critical NEC content. 2020 Edition DetailsHighlightsChanges to the 2020 edition of NFPA 70®, National Electrical Code® (NEC®), include:Added, edited, and reorganized content to address safety for workers, energy systems and electric vehicles, limited energy, and communication systemsRevisions to service disconnect rules to help protect electrical workers from arc flash hazardsAdapted and adjusted requirements for installation practices of new technologies to meet the evolving demand for Power over EthernetUpdates to modernize tables currently in use for calculations to reflect improvements in energy efficiency and align with evolving codesRevised requirements for ground-fault protection within marinas and boatyardsIntroduction of guidelines for the safe use of electric vehicles (electric vehicle power export equipment) as a backup or emergency power source for a building or a homeReorganization of Article 310, including new user-friendly numbering for important ampacity tables, a new definition for cable bundle in Article 725, and more!The NEC, 2020 edition, introduces significant new requirements for:Exterior emergency disconnects of one- and two-family dwellings for improved electrical safety for emergency respondersThe residential installation of receptacle outlets serving island and peninsular countertops and for surge protection of services supplying dwelling unitsWorking space for “housekeeping pads” for electrical equipment, the installation of wiring methods in exit enclosures, sizing supply and load conductors used with adjustable-speed drive systems, and AFCI protection of branch circuits in patient sleeping areas in care facilitiesCalculating the load of electric vehicle supply equipment with variable current settingsWorker safety in identifying the source of power for disconnecting means and for egress from spaces containing large electrical equipmentGrounding of disconnecting means installed on the supply-side of service disconnecting meansCables installed exposed on ceiling surfaces and sidewallsSpecial occupancies, special equipment, and special conditions, including installation of splash pads, the use of “Type P” cables in hazardous classified locations, and the reinspection of swimming pools and other bodies of waterTable of ContentsNFPA 70® National Electrical Code® 2020 Edition90 IntroductionChapter 1 General100 Definitions110 Requirements for Electrical InstallationsChapter 2 Wiring and Protection200 Use and Identification of Grounded Conductors210 Branch Circuits215 Feeders220 Branch-Circuit, Feeder, and Service Load Calculations225 Outside Branch Circuits and Feeders230 Services240 Overcurrent Protection242 Overvoltage Protection250 Grounding and Bonding280 Surge Arresters, Over 1000 Volts285 Surge-Protective Devices (SPDs), 1000 Volts or LessChapter 3 Wiring Methods and Materials300 General Requirements for Wiring Methods and Materials310 Conductors for General Wiring311 Medium Voltage Conductors and Cable312 Cabinets, Cutout Boxes, and Meter Socket Enclosures314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures320 Armored Cable: Type AC322 Flat Cable Assemblies: Type FC324 Flat Conductor Cable: Type FCC326 Integrated Gas Spacer Cable: Type IGS330 Metal-Clad Cable: Type MC332 Mineral-Insulated, Metal-Sheathed Cable: Type MI334 Nonmetallic-Sheathed Cable: Types NM and NMC336 Power and Control Tray Cable: Type TC337 Type P Cable338 Service-Entrance Cable: Types SE and USE340 Underground Feeder and Branch-Circuit Cable: Type UF342 Intermediate Metal Conduit: Type IMC344 Rigid Metal Conduit: Type RMC348 Flexible Metal Conduit: Type FMC350 Liquidtight Flexible Metal Conduit: Type LFMC352 Rigid Polyvinyl Chloride Conduit: Type PVC353 High Density Polyethylene Conduit: Type HDPE Conduit354 Nonmetallic Underground Conduit with Conductors: Type NUCC355 Reinforced Thermosetting Resin Conduit: Type RTRC356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC358 Electrical Metallic Tubing: Type EMT360 Flexible Metallic Tubing: Type FMT362 Electrical Nonmetallic Tubing: Type ENT366 Auxiliary Gutters368 Busways370 Cablebus372 Cellular Concrete Floor Raceways374 Cellular Metal Floor Raceways376 Metal Wireways378 Nonmetallic Wireways380 Multioutlet Assembly382 Nonmetallic Extensions384 Strut-Type Channel Raceway386 Surface Metal Raceways388 Surface Nonmetallic Raceways390 Underfloor Raceways392 Cable Trays393 Low-Voltage Suspended Ceiling Power Distribution Systems394 Concealed Knob-and-Tube Wiring396 Messenger-Supported Wiring398 Open Wiring on Insulators399 Outdoor Overhead Conductors over 1000 VoltsChapter 4 Equipment for General Use400 Flexible Cords and Flexible Cables402 Fixture Wires404 Switches406 Receptacles, Cord Connectors, and Attachment Plugs (Caps)408 Switchboards, Switchgear, and Panelboards409 Industrial Control Panels410 Luminaires, Lampholders, and Lamps411 Low-Voltage Lighting422 Appliances424 Fixed Electric Space-Heating Equipment425 Fixed Resistance and Electrode Industrial Process Heating Equipment426 Fixed Outdoor Electric Deicing and Snow-Melting Equipment427 Fixed Electric Heating Equipment for Pipelines and Vessels430 Motors, Motor Circuits, and Controllers440 Air-Conditioning and Refrigerating Equipment445 Generators450 Transformers and Transformer Vaults (Including Secondary Ties)455 Phase Converters460 Capacitors470 Resistors and Reactors480 Storage Batteries490 Equipment Over 1000 Volts, NominalChapter 5 Special Occupancies500 Hazardous (Classified) Locations, Classes I, II, and III, Divisions 1 and 2501 Class I Locations502 Class II Locations503 Class III Locations504 Intrinsically Safe Systems505 Zone 0, 1, and 2 Locations506 Zone 20, 21, and 22 Locations for Combustible Dusts or Ignitible Fibers/Flyings510 Hazardous (Classified) Locations - Specific511 Commercial Garages, Repair and Storage513 Aircraft Hangars514 Motor Fuel Dispensing Facilities515 Bulk Storage Plants516 Spray Application, Dipping, Coating, and Printing Processes Using Flammable or Combustible Materials517 Health Care Facilities518 Assembly Occupancies520 Theaters, Audience Areas of Motion Picture and Television Studios, Performance Areas, and Similar Locations522 Control Systems for Permanent Amusement Attractions525 Carnivals, Circuses, Fairs, and Similar Events530 Motion Picture and Television Studios and Similar Locations540 Motion Picture Projection Rooms545 Manufactured Buildings and Relocatable Structures547 Agricultural Buildings550 Mobile Homes, Manufactured Homes, and Mobile Home Parks551 Recreational Vehicles and Recreational Vehicle Parks552 Park Trailers555 Marinas, Boatyards, Floating Buildings, and Commercial and Noncommercial Docking Facilities590 Temporary InstallationsChapter 6 Special Equipment600 Electric Signs and Outline Lighting604 Manufactured Wiring Systems605 Office Furnishings610 Cranes and Hoists620 Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts625 Electric Vehicle Charging System626 Electrified Truck Parking Spaces630 Electric Welders640 Audio Signal Processing, Amplification, and Reproduction Equipment645 Information Technology Equipment646 Modular Data Centers647 Sensitive Electronic Equipment650 Pipe Organs660 X-Ray Equipment665 Induction and Dielectric Heating Equipment668 Electrolytic Cells669 Electroplating670 Industrial Machinery675 Electrically Driven or Controlled Irrigation Machines680 Swimming Pools, Fountains, and Similar Installations682 Natural and Artificially Made Bodies of Water685 Integrated Electrical Systems690 Solar Photovoltaic (PV) Systems691 Large-Scale Photovoltaic (PV) Electric Supply Stations692 Fuel Cell Systems694 Wind Electric Systems695 Fire PumpsChapter 7 Special Conditions700 Emergency Systems701 Legally Required Standby Systems702 Optional Standby Systems705 Interconnected Electric Power Production Sources706 Energy Storage Systems708 Critical Operations Power Systems (COPS)710 Stand-Alone Systems712 Direct Current Microgrids720 Circuits and Equipment Operating at Less Than 50 Volts725 Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits727 Instrumentation Tray Cable: Type ITC728 Fire-Resistive Cable Systems750 Energy Management Systems760 Fire Alarm Systems770 Optical Fiber CablesChapter 8 Communications Systems800 General Requirements for Communications Systems805 Communications Circuits810 Radio and Television Equipment820 Community Antenna Television and Radio Distribution Systems830 Network-Powered Broadband Communications Systems840 Premises-Powered Broadband Communications SystemsChapter 9 TablesInformative Annex A: Product Safety StandardsInformative Annex B: Application Information for Ampacity CalculationInformative Annex C: Conduit, Tubing, and Cable Tray Fill Tables for Conductors and Fixture Wires of the Same SizeInformative Annex D: ExamplesInformative Annex E: Types of ConstructionInformative Annex F: Availability and Reliability for Critical Operations Power Systems; and Development and Implementation of Functional Performance Tests (FPTs) for Critical Operations Power SystemsInformative Annex G: Supervisory Control and Data Acquisition (SCADA)Informative Annex H: Administration and EnforcementInformative Annex I: Recommended Tightening Torque Tables from UL Standard 486A-BInformative Annex J: ADA Standards for Accessible DesignIndex

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