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  1. Replies
    11$$
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    489

    A Larry stated spot welding to the bus is a...

    A Larry stated spot welding to the bus is a common practice for these split bus panels and was done by the manufacturer.
  2. Replies
    4$$
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    233

    That would be fine for using the mast to support...

    That would be fine for using the mast to support the drop.
  3. Replies
    1$$
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    159

    Duplicate respond here:...

    Duplicate respond here:
    https://forums.mikeholt.com/showthread.php?t=199256
  4. Cables through a series of holes are static and...

    Cables through a series of holes are static and not going to move. If there is a space between them I don't see how that's not maintaining spacing. If a physical spacing device is required then the...
  5. Replies
    29$$
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    608

    I agree, for the MBJ and GEC connections just...

    I agree, for the MBJ and GEC connections just pretend the meter disconnect does not exist and wire as you would any other service.
  6. Replies
    4$$
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    233

    IMO it's a judgement call depending on how the...

    IMO it's a judgement call depending on how the section above the coupling is supported. You could always add a guy wire to increase the mechanical strength of the mast.
  7. Yes so in this case (unless there is some...

    Yes so in this case (unless there is some adjustment factor) you end up with a 5700 amp set of secondary conductors.
  8. 12 sets of 4 conductors in each set. A,B,C,N

    12 sets of 4 conductors in each set. A,B,C,N
  9. Thread: Elevator PITS

    by infinity
    Replies
    7$$
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    340

    Here's the 2014 and 2017 for comparison. 2014...

    Here's the 2014 and 2017 for comparison.

    2014 NEC:



    2017 NEC:
  10. Replies
    8$$
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    234

    Yes. :)

    Yes. :)
  11. Replies
    8$$
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    234

    Makes no sense to me. :?

    Makes no sense to me. :?
  12. Replies
    7$$
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    294

    So it's not specifically prohibited and is a...

    So it's not specifically prohibited and is a judgement call as to whether or not is will likely be subject to damage.
  13. Thread: Elevator PITS

    by infinity
    Replies
    7$$
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    340

    Sounds like two circuits to me: 2017 NEC:

    Sounds like two circuits to me:

    2017 NEC:
  14. Replies
    7$$
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    294

    I don't see track lighting specifically listed as...

    I don't see track lighting specifically listed as not permitted. If the lamp is fully enclosed should the light source type even matter?
  15. Replies
    7$$
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    294

    I tend to agree but what specific wording in the...

    I tend to agree but what specific wording in the NEC would say that?
  16. There is no maximum size but there is a minimum. ...

    There is no maximum size but there is a minimum. You would take size of the ungrounded conductor times the number of sets and then multiply by 12.5%.

    12*750 kcmil=9000 kcmil*12.5%=1125 kcmil
  17. Replies
    3$$
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    150

    Why do would you want to do this iso-phase? Also...

    Why do would you want to do this iso-phase? Also a 90° C conductor van use it's 90° C ampacity for the derating calculation.
  18. Thread: MCB TO MLO

    by infinity
    Replies
    16$$
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    786

    If I'm reading your drawing correctly there is no...

    If I'm reading your drawing correctly there is no reason to remove the existing main CB but if that is what they want and they're paying you for it then just do it. :)
  19. Replies
    32$$
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    1,167

    As stated below 3-ways is one way to comply with...

    As stated below 3-ways is one way to comply with that section but it is not a requirement.





    I agree. :)
  20. Replies
    7$$
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    294

    Track Lighting in Clothes Closet

    If the proper clearances are met is lighting track installed above the closet door with enclosed LED heads permitted in a clothes closet?
  21. Replies
    7$$
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    289

    If everything is ahead of the service disconnects...

    If everything is ahead of the service disconnects the feeder tap rules of Article 240 do not apply since you have service entrance conductors (SEC's) not a feeder. I might be slightly confused by...
  22. Replies
    16$$
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    711

    Who are you responding to?

    Who are you responding to?
  23. Replies
    7$$
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    337

    Very true but the OP did specifically ask about a...

    Very true but the OP did specifically ask about a 2 pole. I'm guessing that maybe he's concerned about an imbalance of some kind.
  24. Replies
    8$$
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    373

    5' good to know, regardless the panel cannot go...

    5' good to know, regardless the panel cannot go in the basement without the proper clearance.
  25. Replies
    8$$
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    373

    Just an aside is a 6' high basement really a...

    Just an aside is a 6' high basement really a basement? I thought that the building code had a higher minimum height for a new dwelling unless it's considered a crawl space.
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