2017 NFPA 70: NEC Looseleaf - Current Edition

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  • Description

    Stay up-to-code and organized with the 2017 edition of the NEC® in durable Looseleaf format.

    The 2017 edition of NFPA 70®, National Electrical Code® (NEC) presents the latest comprehensive regulations for electrical wiring, overcurrent protection, grounding, and installation of equipment. Featuring a durable, five-ring binder, this performance-boosting NEC Looseleaf format lets you insert all the extra technical information and other data you need on an electrical project within relevant sections of the Code.

    Hundreds of updates and five all-new articles in the newest NEC pave the way to a safe and efficient electrical future.

    Major additions reflect the continuing growth in renewable power technology. New Code articles address the advancement of privately owned wind and solar power generation and distribution equipment -- including coverage of higher voltage systems that were once only the utilities' domain. The new consumer role is a major factor in energy decentralization, and expanded NEC coverage is vital for designers, engineers, contractors, and AHJs. You'll work with:

    • Large-Scale Photovoltaic (PV) Electric Power Production Facility (New Article 691)
    • Energy Storage Systems (New Article 706)
    • Stand-Alone Systems (New Article 710)
    • Direct Current Microgrids (New Article 712)

    Other NEC revisions protect the public and workers from deadly hazards.

    • New labeling, such as detailed arc flash hazard warning on equipment, helps workers and supervisors assess electrical risks.
    • New minimum space clearances for equipment installation clarify the safeguards needed to protect installers and maintainers.
    • Fixed Resistance and Electrode Industrial Process Heating Equipment (New Article 425) presents needed regulations for industry.
    • Revised provisions for AFCI and GFCI protection improve electrical and fire safety in homes.

    Order your 2017 NEC Looseleaf today for a customized Code!

    NFPA 70, National Electrical Code is the nation's benchmark code for safe electrical installation, and the sturdy 2017 NEC Looseleaf is the right choice for busy electrical professionals who need job information at their fingertips. (Looseleaf, 888 pp., 2017)

  • How the NFPA Handbooks Differ from Codes and Standards


    Ever wonder what the difference is between an NFPA® handbook and a code or standard? We’re glad you asked.

    NFPA codes and standards both provide requirements for achieving outcomes. Handbooks take a deeper dive, providing the full text of a code or standard as well as expert commentary and features such as graphics, decision trees, testing procedures, case studies, sample forms and checklists, and other helpful aids to give a better understanding of the reasoning behind the requirements and how to apply them.


    • A code or standard is a framework—a set of rules to follow with a goal to achieve a certain result
    • A handbook is a connector—linking requirements to application by helping you understand the reasoning behind a code or standard

    The simplest way to think about it is that codes and standards list the technical requirements while handbooks explain those requirements to clarify how to apply them.

  • 2014 Description

    Stay up-to-code and organized with the 2014 NFPA 70®: National Electrical Code® Looseleaf from NFPA®.

    The 2014 NEC® covers the latest requirements on electrical wiring and equipment installation issues, including minimum provisions for the use of connections, voltage markings, conductors, and cables. Chapters address specific circumstances surrounding special occupancies and industrial equipment and machines. It also contains specific details on the safe installation and use of communications and signaling conductors.

    Choose the 2014 NEC Looseleaf, with a durable 5-ring binder that makes it easy to add job-specific materials or remove or reorganize information.

    The performance-boosting NEC Looseleaf lets you insert all the extra technical information and other data you need on an electrical project within relevant sections of the 2014 National Electrical Code. This Code edition includes major changes such as:

    • Expanded AFCI and GFCI protection in homes
    • Continued emphasis on making installations safe for electrical workers
    • Coverage of new methods to distribute low voltage power
    • New approaches toward ensuring safety of photovoltaic (PV) electric systems
    • Changes to the long-standing voltage thresholds used in the Code
    • Plus hundreds of others that allow for the safe implementation of the latest in electrical system and equipment technology.

    Four all-new Articles in the 2014 NEC address growing technologies:

    • Low Voltage Direct Current Distribution Systems (Article 393)
    • Modular Data Centers (Article 646)
    • Fire Resistive Cable Systems (Article 728)
    • Energy Management Systems (Article 750)

    Order your 2014 NEC Looseleaf today and customize your Code for every electrical project.

    NFPA 70: National Electrical Code is the nation's singular code for safe electrical installation, and the 2014 NEC Looseleaf is the right choice for busy electrical professionals who need job information at their fingertips. (Looseleaf, 910 pp., 2014)


    Interested in other editions of the NEC Looseleaf? Use the drop down menu above to select the edition year you need.

  • NFPA eBooks and PDF's

    NFPA® eBooks and PDFs can be downloaded immediately after purchase for quick, easy access. For the best reading experience, NFPA recommends using the free NFPA eReader application, NFPA eLibrary.

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    The free NFPA eLibrary app gives you access to your NFPA eBooks and PDFs both online and offline. The app has tools to help you get your job done, search, highlight text, or add bookmarks. Sign-in with your NFPA username and password. Access is immediate

    Upon purchase of an NFPA eBook or PDF, you will be prompted with instructions for downloading and accessing.

  • NEC Tabs

    Boost your referencing power with NFPA®'s best-selling NEC® Tabs for the 2017 edition of your NEC Code or NEC Handbook.

    Invest in this easy way to save time on every electrical job. Self-adhesive NEC Tabs affix to the 2017 edition of the NFPA 70®: National Electrical Code® or NEC Handbook, so you can flip open your book to the latest electrical safety information.

    NEC Tabs highlight electrical topics by Code article and name including:

    • 210 Branch Circuits
    • 8 GFCI Protection
    • 12 AFCI Protection
    • 215 Feeders
    • 220 Calculations
    • 240 Overcurrent Protection
    • 250 Grounding and Bonding
    • 310 Conductors
    • 404 Switches
    • 408 Panelboards
    • 422 Appliances
    • 430 Motors
    • 500 Hazardous Locations
    • 517 Health Care Facilities
    • 706 Energy Storage Systems
    • 760 Fire Alarm Systems
    • Plus 4 blank Tabs you can customize! 

    Maximize time at work with NEC Tabs!

    Discover why thousands of electrical professionals won't work without self-adhesive NEC Tabs. (For use with the 2017 NEC Softbound, Looseleaf, Spiralbound, and the hardbound NEC Handbook; Set of 96)

  • What are NEC Reference Cards?

    All-new NEC® Reference Cards provide fast and easy access to the most essential NEC tables for electrical contractors and installers.

    Keep installations right on the money with 13 frequently referenced NEC tables printed on durable waterproof NEC Reference Cards. Based on the 2017 edition of NFPA 70®: National Electrical Code®, double-sided Reference Cards are lightweight and compact enough to fit into a pocket. They also easily attach to your belt or toolbox using the 1" ring-clip (included). Carry all the cards or just those you need on a particular job.

    Save time and improve accuracy with handy access to the NEC tables that contractors and installers reference most often in the field:

    • TABLE 250.66 Grounding Electrode Conductor for Alternating-Current Systems
    • TABLE 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for Alternating-Current Systems
    • TABLE 250.122 Minimum Size Equipment Grounding Conductors for Grounding Raceway and Equipment
    • TABLE 300.5 Minimum Cover Requirements, 0 to 1000 Volts, Nominal, Burial in Millimeters (Inches)
    • TABLE 310.15(B)(2)(a) Ambient Temperature Correction Factors Based on 30°C (86°F)
    • TABLE 310.15(B)(7) Conductor Sizes for 3-Wire, Single-Phase Dwelling Services and Feeders.
    • TABLE 310.15(B)(16) (formerly Table 310.16) Allowable Ampacities of Insulated Conductors Rated Up to and Including 2000 Volts, 60°C Through 90°C (140°F Through 194°F), Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on Ambient Temperature of 30°C (86°F)
    • TABLE 314.16(A) Metal Boxes
    • TABLE 430.52 Maximum Rating or Setting of Motor Branch-Circuit Short-Circuit and Ground-Fault Protective Devices
    • TABLE 430.250 Full-Load Current, Three-Phase Alternating-Current Motors
    • TABLE 450.3(B) Maximum Rating or Setting of Overcurrent Protection for Transformers 1000 Volts and Less (as a Percentage of Transformer-Rated Current) Summary of Branch Circuit Requirements
    • CHAPTER 9, TABLE 4 Dimensions and Percent Area of Conduit and Tubing (Areas of Conduit or Tubing for the Combinations of Wires Permitted in Table 1, Chapter 9)
    • TABLE 5 Dimensions of Insulated Conductors and Fixture Wires Summary of Tap Conductor Requirements 

    Includes 13 cards, 3.5" x 5.5" each, 2017

  • What is a Redline PDF?

    NFPA®'s Redline PDF contains both the current NFPA document and a Redline version of the document which shows changes from the previous edition marked in color. With the Redline you can quickly spot changed sections and tell specifically what has been changed from the previous edition, saving time and confusion.

    • Changed sections are marked with a vertical rule.
    • Deleted material is shown in red strikethrough type.
    • New material appears in blue underscored type.


    Sample (NEC® 2014)

    411.2411.3 Definition. Low-Voltage Lighting Systems.


    (A) General. Lighting Ssystems Ooperating at 30 Volts- volts or  Less. A lighting system consisting less shall consist of an isolating power supply, the low-voltage luminaires, and associated equipment that are all identified for the use. The output circuits of the power supply are shall be rated for not more than 25 amperes and  operate at 30 volts (42.4 volts peak) or lessmaximum under all load conditions.


    (B) Class 2. Listed Class 2 lighting equipment shall be rated in conformance with Chapter 9, Table 11(A) or Table 11(B).


    411.3411.4 Listing Required. Lighting systems operating at 30 volts or less shall comply with 411.3(A)411.4(A) or 

    411.3(B).411.4(B). Class 2 power sources and lighting equipment connected to Class 2 power sources shall be llisted.

  • Also in NFPA 70: National Electrical Code (NEC)