[Public-List] Deck Penetration for Mast Wires

Clay Pass clay.q.pass at gmail.com
Sun Mar 8 12:50:47 PDT 2020

This is what I use on #449.  Enters next to bulkhead above head to a
junction box near the cabinet.  Then the cabinets make a nice way to route
cables hidden from view to other parts of the boat.  No sealant is needed
in the pipe which allows for quick disconnect.  The pipe is stainless steel
and I've never had any water penetration.

Clay Pass
#449 Seeing Deep

On Thu, Mar 5, 2020 at 12:44 PM Jonathan Bresler via Public-List <
public-list at lists.alberg30.org> wrote:

> Folks,
> Thinking of redoing the deck penetrations for the mast wires on Constance.
> Currently there are three distinct penetrations, two to port of the mast
> base
> and one to starboard. All enter the v-berth just forward of the mast beam.
> The wires get stepped on from time to time. They are not well protected
> from
> damage.   The wires are: electrical cable for steaming, deck, anchor lights
> and ground, VHF cable, signal cables (16 or 18 AWG) for Raymarine ST60
> wind instruments.
> Thinking about having a single penetration, just aft the base plate,
> entering
> into the head/hanging locker area. One penetration large enough to hold all
> the wires.  Would fill the penetration with putty or expanding foam or
> "what
> woud you recommend".  Playing with the idea of perhaps a 3/4" thruhull
> topped
> by a 90 degree elbow so that water does not pool/sit on the top of the
> opening.
> One of these (
> https://www.groco.net/products/fittings/pipe-to-hose-elbows/ffc-series-npt-full-flow
> )
> might do the trick, but does seem a bit bulky.
> Thank you,
> Jonathan
> --
> Jonathan M Bresler
> S/V Constance Alberg 30 #262
> Annapolis/Eastport MD
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