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How to design electrical system for a hotel?

  1. Aug 26, 2015 #1

    Cdz

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    So here is the problem, I major in electrical engineering and my sister works in a small furnishing company and recently the company got an offer to furnish a hotel with 25 rooms.
    And she asks me if I can design the electric circuit for that hotel.In school I learn electric machine and how to control it, programming and so on.
    So i never actually designed a circuit for a room, let alone a hotel..
    But I think that should not be too difficult,it's basically a circuit of delivering energy.
    But then again,the main concern here is to ensure SAFETY. This should be done by experienced electrician. But i think this would be a very good opportunity to gain experience to learn how to do it.
    What should i consider?
    Consideration:
    1. Wires how to choose different lines?
    2. Topology so 25 five rooms should run parallel
    3. Protection instruments(need to understand them and how to choose them)
    4. Ground(I don't understand this very well, how Ground a device will protect us, and it's difference with neutral line)
    5. Convention colors for different wires and what else?
    6. Three phase or single phase?
    7. How to organize all those wires


    What else to consider? Or it there any guides that i can follow?
    Please help me!
     
  2. jcsd
  3. Aug 26, 2015 #2

    anorlunda

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    Gold Member

    After graduating as an EE myself, I learned that all my learning did not prepare me from being an electrician.

    The Bible for an electrician is not Ohm's Law, it is The National Elecric Code (NEC). How much do you know about that?
     
  4. Aug 26, 2015 #3

    berkeman

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    Staff: Mentor

    What country are you in? You will need to get the electrical plans approved by your city's Building Inspector's Department, and they will inspect the installation at several steps along the way. The wiring should be done by a licensed electrician, to help ensure that it is done to code (the NEC as mentioned, or a different standard if you are not in the US). Does the hotel not already have wiring? Is it in construction right now?
     
  5. Aug 26, 2015 #4

    sophiecentaur

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    Until you have a load of suitable qualifications, you will not be in a position to Certify any system you could produce. However good it may turn out to be, you (and your customer) would need it to be inspected by a suitably qualified Electrical Engineer before members of the public could use the hotel.
    'Jobs for the boys'?? Possibly, but the regulations let us all sleep easily in our hotel beds.
    One possible (cheap) way to approach this could be to find a tame EE and present him (/her) with a detailed requirement for the system and your suggested plans.
    There really isn't a short cut available. Judging from your original list of questions, I should say that you would need to follow a course to get thoroughly acquainted with that part of EE.
    I was in a similar situation, recently, when I sold a house in which I had done a number of (pukka) mods and installations. My Chartered Engineer status has long since lapsed but I knew what to do. Nonetheless, I had to pay a guy some serious dosh for him to inspect the system and make a couple of changes.

    Note In the UK a certified EE can self certificate installations and Building Control doesn't need to get involved.
     
  6. Aug 26, 2015 #5

    Cdz

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    I know that it exists but never read it before,so I think this would be a good start,thanks.
     
  7. Aug 26, 2015 #6

    Cdz

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    I heard that the company hired some college graduate to do this:oldsurprised::oldsurprised::oldsurprised: and my sister told me that guy seems at loss..I need to make sure that I won't sleep in that hotel then.
     
  8. Aug 26, 2015 #7

    Drakkith

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    Staff: Mentor

    Safety trumps learning in this circumstance. Thread locked.
     
  9. Aug 26, 2015 #8

    russ_watters

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    Staff: Mentor

    Let me expand on that:
    Designing an electrical system for a building is a job that only a licensed professional engineer can do. Anyone else attempting to do so is not only violating the law, but is endangering lives. We do not condone, so we will not assist in such a misguided effort. Please do the right thing (and tell your sister to do the right thing) here.
     
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