2020 NFPA 70, NEC Looseleaf - Current Edition

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  • Description

    Prepare to face every electrical-related challenge across residential, commercial, and industrial settings with NFPA 70®, National Electrical Code® (NEC®) Looseleaf, 2020 edition. The expanded and revised code offers comprehensive coverage of electrical wiring, overcurrent protection, grounding, and installation of equipment with new, edited, and reorganized requirements for ground-fault circuit interrupter (GFCI) protection, overvoltage protection, load calculations, horticultural lighting, emergency service disconnects for dwellings, and more.

  • How the NFPA Handbooks Differ from Codes and Standards

    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.

    JUST REMEMBER:

    • 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.

  • 2017 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)

  • NFPA eBooks and PDFs

    NFPA® eBooks and PDFs can be downloaded immediately after purchase for quick, easy access.

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

  • NEC Tabs

    Invest in NFPA 70®, National Electrical Code® (NEC®), Self-Adhesive Index Tabs, 2020, for a simple way to save time accessing the latest electrical safety information on the job. An essential for all electrical professionals, the set includes 96 high-quality tabs color-coded for easy navigation you can stick on the pages of the NEC, 2020 edition, or NFPA 70, National Electrical Code Handbook, to highlight the chapters, sections, and content you reference the most.

    For the 2020 edition, tabs are grouped by color to help users quickly navigate by subject matter. Topics are grouped by:

    • Grounding and bonding
    • Wiring methods
    • Cords and equipment
    • Hazardous locations
    • Marinas, pools, etc.
    • Electric vehicles, PV, energy, storage
    • Fire pumps, fire alarms, critical operations

    Discover why thousands of electrical professionals won't work without self-adhesive NEC Tabs. For use with softbound, looseleaf, spiralbound, and the hardbound handbook.

  • 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)