Terry,
This is a very common problem and common sense provides the solution. First
do not use a connector. Instead use an old fashion bakelite terminal strip.
Second, all mast wires exit the mast above the deck and make a "U" turn up
into a "J" pipe in stainless and then back down below deck to the terminal
block. In this way, all condensation and rain water that drips down the mast
wires drips off the wires above deck. At the entrance to the "J" pipe
install a soft rubber gland with a hose clamp on the wires and on the
stainless pipe. Problem solved. When removing mast, just disconnect the
wires from the terminal block below deck, loosen the rubber gland hose clamp
at the "J" pipe and remove the wires as a laced bundle with the rubber
gland.
Steve

"terry" wrote in message
ups.com...
Westerly 1970s all fiberglass 26 footer. Previous owner replaced mast
and rigging but in the process installed deck mounted connectors (good
quality marine type) for the mast wiring that allowed water to get
into a substantial wooden block buried in the deck under the mast
step. That block is further supported by a stainless steel column
that goes down to the keel.

During winter storage the water soaked wood burst the f.glass deck
around the mast step. It's now all replaced.

Now wondering best way to connect the revamped mast wiring (Approx.
seven wires plus an RG58 coax. for the top of the mast VHF whip).**

Certainly resolved to have any wiring holes and/or mounting screws
well away from the wooden block. Also maybe prefer not to have any
connectors at all?

That would mean poking the bunch of wires from the mast through
something (a caulked hole or gland or ???) in the deck to be, say,
connected individually once per season to a terminal strip in the
toilet ('Head') compartment below. Pondering various alternatives.

Any advice please would be most appreciated.

BTW ** We now have all the nav. lights on the mast rather than lower
down on the hull and cabin sides of the boat. The original (previously
replaced!) stern light for example was for ever getting stepped on and
damaged. The individual cabin side port/starboard lights had long ago
been replaced by a red/green bow pulpit one that also suffered damage
and or got tangled with jib sheets etc. Any comments/advice on this
also appreciated.