Grounding Detached garages

[noelectricalexpert]

HELP!
I just moved into a home that has two detached garages. The power for both garages runs from the electric panel on a pole outside the 1st garage. The power runs from the first garage into a small double 30amp fuse box. One for each garage. The power for the second garage is supplied by the first garage via a junction box and conduit. The problem I am having is somewhere there is no ground and when you touch the any of the metal on either building you get shocked. I have a grounding rod that I want to install but am not sure where the correct place would be to put it. Would it be best to connect it to the main power coming in on the first garage? At the fuse box? Thanks for any advice!

[volts]

NEE: By your description I am led to believe that the feeds to the garages did not have the third conductor, i.e., the household system ground bond (bare wire or green). Assumedly the garage feeds are not via steel conduit, which provides the ground. I would prefer rewiring, using a cable with the ground wire back to the source. Let us know how the project goes.

[irregularjoe]

It could be many things.
Reverse polarity, faulty ground, defective wiring, etc.
If you're "noelectricalexpert", it might be a good time to call an expert in.

Did you ever see OHM'S mother in LAW?...... SHOCKING!