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  1. Replies
    11$$
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    261

    You tap both 350 sets. There are various methods....

    You tap both 350 sets. There are various methods. Some use split bolts. Some use terminal or tap blocks.

    As already mentioned, nearest point of entrance is ambiguous at best, and thus varies per...
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    1$$
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    81

    Exterior bonding is not required. In fact, Point...

    Exterior bonding is not required. In fact, Point of Entrance is defined in 820.2 as "The point within a building at which the coaxial cable emerges from an external wall, from a concrete floor slab,...
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    11$$
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    261

    Yes. Article 240 tap rules do not apply to...

    Yes. Article 240 tap rules do not apply to service conductors. The service disconnecting means would be the 3 panel MCB's.
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    6$$
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    Welcome to the forum, Matt. :thumbsup: FWIW,...

    Welcome to the forum, Matt. :thumbsup:

    FWIW, your link went to the wrong thread (for me). Here's a link to the post you quoted......
  5. Agree with kingpb, pretty vague... Are data...

    Agree with kingpb, pretty vague...

    Are data centers equipped in the lease? If not, there is no way to know unless they furnish power consumption info on the equipment they will be running. Even...
  6. That too... Types OFNP and OFCP are rated for...

    That too... Types OFNP and OFCP are rated for both plenum and riser uses without raceway.
  7. Replies
    24$$
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    544

    AFAIK the 120% threshold value was "suggested" by...

    AFAIK the 120% threshold value was "suggested" by authoritative persons in the PV industry and CMP went with it. Seems to stem from the idea that loads or faults on a feeder or bus between two...
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    5$$
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    280

    The answer to that is going to vary from person...

    The answer to that is going to vary from person to person and most will base it on cost and many of those will not factor in potential damage to non-electrical property when not replaced.
  9. Replies
    3$$
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    245

    No requirement to use new.

    No requirement to use new.
  10. Replies
    9$$
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    386

    Assuming secondary A,B,C is powered by primary...

    Assuming secondary A,B,C is powered by primary CA,AB,BC respectively, then
    NA = 60
    NB = 60
    NC = 120
    AB = 360
    BC = 60
    CA = 240
  11. Replies
    24$$
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    544

    That is true even for conductors with tapped load...

    That is true even for conductors with tapped load circuits, even under an overcurrent condition on the taps.
  12. I don't think that is the intent of the...

    I don't think that is the intent of the definition, i.e. cable is considered outside the building if run in RMC/IMC. I think those are there for when there is no wall or slab floor. But I'll agree...
  13. I'm not missing anything. Wire resistance and...

    I'm not missing anything. Wire resistance and temperature are interdependent, period. Change either, you change both. Cause of the change is irrelevant.

    PS: I agree most certainly nowhere near...
  14. I realize that, and you are missing my point. ...

    I realize that, and you are missing my point. The physics underlying the table is to reduce the combined self-generated heat within the conductors, i.e. the temperature within the conduit. Conductor...
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    4$$
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    190

    What I was thinking about was 404.8(B) [which...

    What I was thinking about was 404.8(B) [which only applies to snap switches] and similar... but found nothing prohibiting what you intend on doing.
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    4$$
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    190

    Not prohibited explicitly, but you may run into...

    Not prohibited explicitly, but you may run into problems with voltage difference and no barrier. Can't remember the specific Code... and that may be only for device boxes. I'll see if I can find...
  17. Not specifically in that respect, but that is...

    Not specifically in that respect, but that is essentially part of the reason behind 310.15(B)(3)(a).
  18. Replies
    22$$
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    884

    Line side of fuse? As already stated, check...

    Line side of fuse?

    As already stated, check voltage across each fuse. With loads connected, any fuse showing above minimal voltage across it is bad.
  19. Yeh... but (in the context of that comment) not...

    Yeh... but (in the context of that comment) not regarding conductor current ratings. :)



    I infer it from the Ampacity definition. Show me where uninsulated bus (by itself), or any bare...
  20. Do these splice/tap devices have an ampacity...

    Do these splice/tap devices have an ampacity rating?

    Typically, they do not even have a current rating. We rely on wire size and temperature rating, perhaps listing, to determine if they are...
  21. So where are the equipment current rating...

    So where are the equipment current rating requirements in Article 215?

    All I see are ampacity requirements. Ampacity ratings only apply to wire-type, insulated conductors.
  22. Thread: Gland Plates

    by Smart $
    Replies
    8$$
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    343

    Who is directing you to design the gland plate? ...

    Who is directing you to design the gland plate?

    Why does the installation need it?

    Sounds like a project for custom gear manufacturer... (Is that you?)

    Typically over here a gland plate is...
  23. I agree with your 310 assessment. What appears...

    I agree with your 310 assessment.

    What appears to be the issue, is whether distribution equipment parts (bus in particular) can be a feeder. If that be the case, please tell me how one can apply...
  24. Not in the NEC. California or local amendments?...

    Not in the NEC. California or local amendments?

    The NEC still "suggests" 3% on either but not more than 5% total..
  25. Replies
    12$$
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    433

    Everything in a load calculation is in VA units. ...

    Everything in a load calculation is in VA units. Doesn't matter whether it's 1Ø or 3Ø. Code specifically states some items wattage is equivalent to VA (e.g. ovens and ranges). Motors rated in...
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