200A DC, copper need much, and the square of the number of the cable
12mm bar, a single copper core cable 95 square
10mm 75 square diameter copper or copper core cable
Wire electrician manual copper material set safe carrying capacity per square mm 6A.If you use a single core copper wire, then 35 square MM will do.If you are using copper, with copper, (brass resistance is not the same as the diameter of more than 10mm).
