I went to replace the extension cord in the garage with a new wire.
After I put the main fuse panel (the one with 60AMP Buss fuses two of the screw in 15 & 30 AMP) blew out . :confused:
When I replaced the blowen fuses I now have no electric to my detachaed garage.
I used my meter but could not find any active current. :eek:
The main electric source is from the house in an underground tube. It has 3 large black wires which have wrapped wires in each.
How can I check to see if the line's thr 3 large ones have current.[/I]:o

I'm sorry but I don't think I understand your post.

What do you mean "replace an extention cord"?

If you tripped a fuses after pulling the main buss fuses , something is not wired properly in the sub-panel.

You probably tripped the breaker or blew fuse in main panel in the house.

Check wiring in sub-panel, something's not right.