OK I know how to figure voltage drop. To calculate it you need voltage, distance, amperage, and the resistance of the wire. So I have filled all the the equation exept for the amperage. What do you use here?

A. Caculated load using the standard method or the alternate method. By the way this gives you two very different answers.

B. 200A.

C. Some other gohstly number

I need to size this so it dose not go crazy silly on the cost and the guy goes bankrupt. Nor do I want to get called back because the guy cant read the paper by a 100W bulb wile taking a **** . One size differance will make a huge price change. It needs to be accurate.