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    • Code Basics

    Understanding the foundation of the National Electrical Code and applying its principles on the job and in the field

    Highlights

    NEC Requirements for Solar — Part 2

    July 17, 2024
    The circuit requirements for PV systems have two major “add-ins” versus those of other circuits.

    NEC Requirements for Solar — Part 1

    June 13, 2024
    Do you understand the general requirements and the bonding requirements for solar installations?

    NEC Requirements for Services — Part 2

    May 15, 2024
    Do you know the rules for service entrance conductors and service disconnects?

    NEC Requirements for Services — Part 1

    April 16, 2024
    Do you understand the conductor and equipment requirements for services?

    NEC Requirements for Energy Storage Systems

    Feb. 15, 2024
    The high energy levels in energy storage systems make them especially dangerous if they are not installed and maintained per Code.

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    Apprentice's Guide to Niche Applications

    Dec. 4, 2024
    Prepare for any electrical installation situation with trainer Harold De Loach.
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    Fig. 1 The rules of Art. 445 include where generators can be installed, nameplate markings, conductor ampacity, and disconnect requirements.

    NEC Requirements for Generators

    Sept. 13, 2023
    Conductor sizing and the requirements for disconnecting means are the main electrical considerations in a generator installation.
    Fig. 1. A motor branch-circuit OCPD must be able to carry the motor’s starting current.

    NEC Requirements for Motors – Part 2 of 2

    Aug. 9, 2023
    Do you know how to protect motors and related equipment from overcurrent and ground faults?
    Fig. 1. Use the rules in Art. 430 to calculate and apply overcurrent protection for motors.

    NEC Requirements for Motors – Part 1 of 2

    July 12, 2023
    Do you know the basics of Art. 430, including what overload protection is and what the requirements are for overload protection?
    Fig. 1. The rating, type, and installation of receptacles, attachment plugs, and flange inlets can be found in Art. 406 of the NEC.

    NEC Requirements for Receptacles

    June 14, 2023
    It’s easy to commit Code violations with receptacle applications if you don’t have a solid understanding of the NEC requirements.