Arseegee:
OK, now I know what you have.
I had/have a switchboard (4000 amp, 120/208) located in a basement in a large city. The gear is actually underneath the front sidewalk. THere is/was a severe seepage problem that could not be corrected by replacing the sidewalk, etc.
We had a "large" drip pan fabricated 6'x14' from sheetmetal. Installed it on the top of the switchboard (no conduits exit/enter thru the top, luckly). Had two 4" drain lines cut into the pan, routed to a floor drain. There are also two 5HP sump pumps in the gear room "just-in-case". So far the switchboard is bone dry.
You probably have conduits exiting thru the top of the gear.
Can the sprinkler contractor put a diversion head (directional control) at this location?
Lastly, how about checking if the "storage" area is legal with the building dept. The ultimate solution may be to remove the storage area and the sprinkler head. This may be the "financial" solution, by telling the owner how much it will cost to replace the gear if the head pops.
Keep me/us posted please!
John
