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Discuss electrical diversity in commercail buildings in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. djlander
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    djlander EF Member

    Location:
    coventry
    hi guys

    just a quick question

    what diversity rules do you normally put to a commercial building, it will have offices with IT equipment, laundry room, kitchen etc

    thanks
     
  2. djlander
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    djlander EF Member

    Location:
    coventry
    don't worry sorted it now, did not have my OSG or regs to hand but do now! :blush5:
     
  3. Engineer54
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    Engineer54 Guest

    The diversity factors found in these 2 publications won't give you anywhere near a realistic result. They are only rough guides. Same with the maximum demand factors...

    Realistic results only really come from experience, be it for domestic, commercial or industrial installations...
     
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  4. malcolmsanford
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    malcolmsanford Electrician's Arms

    I would not use the OSG for this to be honest, especially as it is commercial.

    I would add the protection devices up and use the factor *0.6 and get my figure from that.

    I've attached a DNO guide they use. Personally for me they seem to go inverse commercial 0.8 and industrial 0.5, I would go the other way, as I found that industrial would be working to a fuller capacity

    View attachment Guidelines_network_design.pdf
     
  5. T&Earth
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    T&Earth Regular EF Member

    Hi Malcolm

    Thanks for great post, very useful PDF attached.

    Thanks
    Steve
     
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