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electrical diversity in commercail buildings

Discuss electrical diversity in commercail buildings in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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djlander

EF Member
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
 
E

Engineer54

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

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
 
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