What is Maintenance Mode? (MMS, ERMS, ARMS, RELT, DAS)

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  • Опубликовано: 21 авг 2024

Комментарии • 9

  • @aroncells3120
    @aroncells3120 4 месяца назад +2

    Thank you for a very detailed explanation on this topic

    • @testingtechtips
      @testingtechtips  4 месяца назад

      Yeah it's hard to get a full grip of maintenance mode in general since so many sources only give you little bits of info for a single system.

  • @mattprombo9691
    @mattprombo9691 6 месяцев назад +2

    Thank you for the detailed content Joel! There are very few people discussing this information and passionate enough to take time to share.

    • @testingtechtips
      @testingtechtips  6 месяцев назад +1

      Glad it was helpful! I've learned more about my job from RUclips than I care to admit so I'm just trying to make it easier for more guys in the same boat.

    • @mattprombo9691
      @mattprombo9691 6 месяцев назад

      Greatly appreciate it and I hear you on learning from RUclips. It's a great resource for learning for self motivated and curious people.@@testingtechtips

  • @southernstaffing
    @southernstaffing 6 месяцев назад +3

    Great insights Joel!!!

  • @bobandi19
    @bobandi19 3 месяца назад +2

    why doesn't the requirement apply to industrial facilities?

    • @testingtechtips
      @testingtechtips  3 месяца назад

      I chose my words poorly. There is nothing inherently different between "commercial" and "industrial" according to NEC and so 240.87 technically would apply to industrial facilities with equipment over 1200A. In speaking generally, a facility with a medium voltage service will (typically) have a relay and fast enough breaker or some other means to limit the arcing current, meaning maintenance mode isn't (typically) relevant for heavy industry.