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    • EC&M Asks

    Our readers ask a technical question, and our subject matter experts answer.

    Highlights

    Randy Barnett Asks 7

    EC&M Asks Video — A Summary of NFPA 70B Requirements

    Oct. 26, 2023
    In Episode 24, Randy Barnett covers what is included in the latest version of NFPA 70B and who enforces it.
    Randy Ecm Asks 6

    EC&M Asks Video — NFPA 70E Requirements for Arc Flash Warning Labels

    Sept. 14, 2023
    In Episode 23, Randy Barnett covers label requirements based on the 2024 edition.
    Ron Widup Ecm Asks V2

    EC&M Asks Video — Medium-Voltage Circuit Breaker Maintenance

    Aug. 24, 2023
    In Episode 22, Ron Widup covers reader-submitted maintenance questions.
    Ecm Asks Randy Video 5

    EC&M Asks Video — 2023 NEC Requirements for Reconditioned Equipment

    July 27, 2023
    In Episode 20, Randy Barnett covers reader-submitted questions about reconditioned equipment.
    Tommy Ecm Asks Video 5

    EC&M Asks Video — A Review of NFPA 70B History & 2023 Updates

    July 13, 2023
    In Episode 19, Tommy Northcott covers electrical equipment maintenance.
    Tommy Ecm Asks 4

    EC&M Asks Video — Estimating the Blast Radius for Debris During an Arc Flash Event

    May 11, 2023
    In Episode 15, Tommy Northcott covers arc flash safety.
    Ron Widup Ecm Asks

    EC&M Asks Video — How to Avoid a Bus Duct Failure

    April 26, 2023
    In Episode 14, Ron Widup covers a variety of bus duct basics.
    Randy Ecm Asks 4

    EC&M Asks Video — NEC Sec. 110.14 General Rules and Temperature Limits

    April 21, 2023
    In Episode 13, Randy Barnett covers questions about Sec. 110.14 and grounding electrodes.
    Don Kiper Ecm Asks 1

    EC&M Asks Video — Considerations for Averaging Branch Wire Estimates

    March 30, 2023
    Don Kiper answers reader-submitted questions about electrical estimating in Episode 12.