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    The foundation of electrical theory and the application of its principles

    Highlights

    Photo 1. When connections are properly installed, the bond is permanent and will not corrode or break over time.

    Qualifying Permanent Ground Connections

    Feb. 7, 2022
    An inside look at the IEEE 837 Standard

    NEC Requirements for Fire Pumps

    Dec. 13, 2023
    Article 695 provides the minimum electrical requirements for installing fire pumps.
    Fig. 1. An electrically powered passenger vehicle needs a dedicated charging circuit. Article 625 provides the requirements for installing the conductors and equipment for electric vehicle charging, power export, or bidirectional current flow.

    NEC Requirements for EV Equipment

    Nov. 9, 2023
    The electrical conductors and equipment for connecting an electric vehicle to premises wiring must meet specific guidelines.
    Fig. 1. Locations are classified according to the properties of the hazard.

    NEC Requirements for Hazardous Locations

    Oct. 11, 2023
    Article 500 prepares you for properly applying Articles 501 through 516.
    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.
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    Broadcast video caption

    EC&M Tech Talk Video — Bonding for Safety and Compliance

    July 1, 2023
    In Episode 28, Randy Barnett covers bonding of electrical systems and equipment.
    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.
    Fig. 1. The scope of Art. 404 can be found in Sec. 404.1.

    NEC Requirements for Switches

    May 9, 2023
    Don’t let switch-related Code violations darken your reputation.
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    Grounded Wires On Wall

    Monthly Quiz: Grounding and Bonding Connections

    May 1, 2023
    Take this quiz about grounding/bonding basics and enter for a chance to win a $25 gift card to Amazon, iTunes, or Cabela’s!