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Thread: Table 220.88

  1. #1
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    Table 220.88

    (I search the previous entry and this topic was closed. I have a question and opening a new one).

    I took 4 different kVA value and implemented the Optional method for Table 220.88.
    Attached is the results.

    Why Not All Electric Restaurant always have more kVA rating (therefore bigger service conductor size and OCPD) than All Electric Restaurant?
    What I Click image for larger version. 

Name:	Table 220.88.jpg 
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Size:	106.3 KB 
ID:	21279am missing here?
    Attached Images Attached Images  

  2. #2
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    no one has any idea?
    Was I the only one who is thinking south?

  3. #3
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    helloooo.

  4. #4
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    It's Saturday not a lot of members on here and probably many don't want to do a calculation. I am getting ready to go out but I will look at it latter
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  5. #5
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    I took a quick look and I have no idea why all electric gets the demand factor especially in a restaurant.
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  6. #6
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    Quote Originally Posted by Dennis Alwon View Post
    I took a quick look and I have no idea why all electric gets the demand factor especially in a restaurant.
    That is what I am saying!!! All electric restaurant will have a smaller service cable than not all electric restaurant. What I am missing???

  7. #7
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    Quote Originally Posted by de2 View Post
    That is what I am saying!!! All electric restaurant will have a smaller service cable than not all electric restaurant. What I am missing???
    An all electric restaurant would mean more electrical equipment that has intermittent use or thermostatic control. More electrical equipment with intermittent use or thermostatic control means a larger demand factor.

  8. #8
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    Quote Originally Posted by david luchini View Post
    An all electric restaurant would mean more electrical equipment that has intermittent use or thermostatic control. More electrical equipment with intermittent use or thermostatic control means a larger demand factor.
    I see your point but I am not buying this section of the NEC. Cant digest it well.
    I think this should be deleted from the book.

    Sent from my SM-G892U using Tapatalk

  9. #9
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    Quote Originally Posted by de2 View Post
    I see your point but I am not buying this section of the NEC. Cant digest it well.
    I think this should be deleted from the book.

    Sent from my SM-G892U using Tapatalk
    Write a proposal... or just wire it without the demand factor. A lot of thought goes into these demand factors and they have been there for many years so my guess is that it works.
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  10. #10
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    Quote Originally Posted by Dennis Alwon View Post
    Write a proposal... or just wire it without the demand factor. A lot of thought goes into these demand factors and they have been there for many years so my guess is that it works.
    This is also true. I agree.

    NEC also say code book is just to basis design,minimun requirements, you can alway go further than what is the NEC mininum requirements are.

    Sent from my SM-G892U using Tapatalk

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