I am putting in a small laundry room in my garage. I have an electrical plug in the room currently active. I ran electricity from it to another outlet then though a wall switch connected to a single bulb ceiling light. The new and old outlets work great, though when I turn on the overhead light the 30 AMP fuse blows. I had nothing plugged into the outlets at this time. Any suggestions as to why the light is blowing the fuse.

Thanks

if the switch blows the fuse, then it's probably wired hot to neutral, creating a "dead short". Also, If you are on a 30 A fuse for this, it's not to code.