voltage drop on parallel feeders

[mull982]

Hello

I'm trying to calculate the voltage drop using parallel feeders. When doing this, do you just divide you total load current in half and then figure out the voltage drop acroos each feeder?

The example that I am trying to calculate is a 450A load across two parallel 350MCM concuctors. The distance is 650ft. Do I just take half of the 450A, giving me 225A and use this value in my VD equation? I'm thinking my equation would be as follows

VD= (1.73)(12.9)(225A)(650ft)/350000 = 9.32

Is this correct? Would this be my drop across each feeder thus giving me a total 9.32 voltage drop for that circuit?

Thanks

Mull982

 

[spsnyder]

I take the current and divide by 2.

 

[haskindm]

I would just use the total circle mils of the paralleled conductor, which would work no matter how many conductors would be paralleled together.