Consider a substation bay whose length and width are 120 m and 60 m, respectively. The conductor level is 20 m. For Im = 3 kA, determine the number of rows and total number of masts that must be installed at each side (row) considering a mast height of 30 m.

PS: If you think there's something missing, Dont just comment "needs more information" and tell me the specific information missing. We're not playing games here.