Emergency Disconnects

  • 19 Mar 2024 1:12 PM
    Message # 13331716

    The requirement for Emergency Disconnects in the 2023 NEC Art. 230.85 does not call out that it is to be installed on the line or load side of the utility meter.

    Also, at this time the DTE ESIG seems to be missing their requirements on this.

    Possibly DTE will be mandating an Emergency Disconnect integral with the meter enclosure. Whether underground or overhead, services could benefit from such a meter combination. 

    Additionally, 230.85 (C) Replacement. Exception. "Where only meter sockets, service entrance conductors, or related raceways and fitting are replaced, the requirements of this section shall not apply". 

    It seems since the requirement for Emergency Disconnects is paramount to safety, and the Michigan Electrical Code requires bringing up services to the present code when worked on, why this exception?

    Thoughts on this or any information about this would be helpful to contractors, installers and inspectors.

  • 20 Mar 2024 3:22 PM
    Reply # 13332360 on 13331716

    this will be a part of the update class on saturday.230.82(10) allows line side disconnects. this is used by utility companies for disconnects before meters. they are unfused and are not service rated. The neutral wire goes through the disconnect and there  are no GEC installed here. even if dte allowed the other equipment, it would not meet the requirements of part 8 230.85. each disconnect must be service rated, and within sight of the dwelling. this is a panel/ disconnect rule and applies only to panels and disconnects

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