"barry lawson" wrote in message
u...
I'd isolate it just to conform with standard.

I came to the same conclusion but ran out of time. The nylon bolts
that would have let me do that in the hour I had before the crane
arrived weren't available in metric.

The body would have been electrically connected to ground anyway
through the rig and bonding system. I think the essential point is to
have a wire running back for everything to avoid voltage differentials
and not use things like masts and stays as the return wire as is done
on cars and smaller aircraft.
I have that. Well above the waterline, I really can't see any
downside to this additional electrical connection except for the issue
at the top.

--

Roger Long