MLO Panel Diversity

[ctrane]

Suppose you have Panel 1, and it feeds Panel 2 (which is MLO). Do you add the receptacle load from Panel 2 to Panel 1 and then apply diversity, or do you apply diversity to Panel 2 exclusively, and then size the breaker accordingly in Panel 1, and count that load from Panel 2 at 100% on Panel's 1 Load Calc?

 

[jtester]

Do you add the receptacle load from Panel 2 to Panel 1 and then apply diversity, or do you apply diversity to Panel 2 exclusively, and then size the breaker accordingly in Panel 1, and count that load from Panel 2 at 100% on Panel's 1 Load Calc?

When you size the breaker for Panel 2, you diversify the receptacle loads in Panel 2. When you calculate the receptacle load in Panel 1, if you want the minimum load, you could add the total receptacle load in both panels and then diversify.

Jim T

 

[charlie b]

I agree with jtester's answer. But let me suggest that what you are doing cannot be described with the word "diversity" or any of its derivatives. You don't "diversify." You apply a "demand factor."

The field of "power systems engineering" does have a thing called "diversity factor." But it is not at all similar to the notion of applying a demand factor while performing a load calculation.