Voltage Drop

[AMP ELECTRIC LV]

Hi,

We have (2) runs of 2" conduit and are feeding our first panel which has a 250A main CB. We are thinking of running 4/0 ALUM from the gear to the panel board total distance is 300'. Would you all think this is allowable using the 75 degree column with parallel feeds?:-?::-?

 

[charlie]

Your profile says you are a director, what is a director? Are you working in the electrical industry?

 

[AMP ELECTRIC LV]

Director as in over see daily operations

 

[infinity]

According to this calculator you would need 400 kcmil Al conductors for a 200 amp load at 300'. Your parallel #4/0's should be fine.

http://www.elec-toolbox.com/calculators/voltdrop.htm