Hello
I'm working as a helper in electrical firm. We did electricity in the five buildings. However the electrical power to the building does Con Edison. Does Con Edison well provide AC and DC or just AC?
Thanks in advance

Mike,

I don't know about Con Edison Power Co. I live in Pennsylvania. The Power Company in Pittsburgh, (Duquesne Light Company) provides a code / specification book. It doesn't list DC power, only AC power available to customer. I would think most power companies operate the same.

Mike:

Look here and search, or ask Con Edison for help with your specific question.

http://www.conedison.com/