Mike Montaigne said:

>We are doing a project using a PIC for temperature control at the diver
>location and another PIC at the surface for status.  I would like to add
>a GFI circuit to the 48VDC / 10 Amps we are sending down to the diver,
>such that any leakage to the sea on either line (1ma or so) would give a
>fault.

I'm interested - when you identify a fault, what are you going to DO about
it? Is there a parallel backup cable to take over the load? You can't just
cut the guy off, can you?

Sounds like a pretty tough task...

Reg