kriverswaters
Member
If I am planning on installing a Single Phase, 120\240 Volt, 600A Service, to a storage building with 4EA. 200A Single Phase, Sub Panels. Would the NEC Code accept installing 250 MCM AL, for the un-grounded conductors, and a 4\0 AL for the grounded Neutral Conductor to each of the units? The lighting loads are 15KW per unit. What is the "minimum" Neutral size of (Grounded Conductor), that can be used for this application, and where is the "Minimum" size located in the NEC Code Book? 220.61 doesn't seem to make it clear.