High voltage cap discharg? Well the cap is charged and you put it in salt water
guess what it is not charged any more the shortest path is in between the
terminals of the cap and salt water is a good conductor so there is no
path to leave the head and look for people and return to the head. High voltage
DC is not a problem AC on the other hand is plugged in to earth at the generators
an is a problem GFI's are the best protection on any AC outlets near good ground
suppliers (water,pipes,lights,fences,to name a few)
I would say never use a sync cord out doors, radio or optical only that way you
don't add a path for trigger voltage to enter your camera or leave the flash head
can you guess why they call it a hot shoe? Some old equipment can have a
high voltage trigger spike and should not be used on new cameras via sync
cords as it can damage the flash sync circuits in the cameras.
So be safe isolate battery powered strobes and GFI, AC power packs. use
them wizards on your camera. lol
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