Diversity factors for low voltage distribution system...

[captineg]

HI THERE,,
i'm working in a distribution project , (11Kv/400v) , and i'm using the NEC regulations

my problem now is to get the diversity factors between the buldings (i.e to get the net load after diversity ) and so i can choose a suitable cables and transformers that will be used...

so please send me the diversity factors needed to complete my task....

 

[bphgravity]

Re: Diversity factors for low voltage distribution system...

I believe diversity factors are dependent on each installation and are not standarized. We would have to know the ratio of the sum of the non-coincident maximum demands of all loads to their coincident maximum demand for the same period.

I am not too familiar with distribution design, but I do beilieve the specifics of the job would have to be know.

 

[bob]

Re: Diversity factors for low voltage distribution system...

That bit of knowledge will come from experience. What type of loads do you have?

[ June 20, 2004, 10:53 PM: Message edited by: bob ]

 

[rbalex]

Re: Diversity factors for low voltage distribution system...

Art 220 and its various cross references say just about all there is about load calculations for NEC purposes.

For industrial facilities, there are no general "demand" or "diversity" factors recognized in the Code other than non-coincident loads, through Art 430 for example.