I know a sailboat with diesel rather than gas aux unit need not have
explosion proof switches. Put volatile compounds on a boat and then
explosion proof electrical components are required.
This is not just a CG requirement but electrical code for installations
over most of the world, as most at least use the NEC as a guide if they
don't produce their own guidelines.
Kevin Pemberton
On 09/19/2012 08:29 AM, John Green wrote:
> Hi,
> Arising from another topic, I was wondering if any group members have
> experience or knowledge regarding the marine certification of motors
> and charging systems.
> My main question is, do electrical items that produce sparks need to be
> certified or enclosed somehow, if there is no gasoline or propane used
> inside the enclosed boat, and the battery box(es) are vented to the
> exterior?
> The motors that I am initially using are actually 12v DC generators,
> and are marine certified as well as fully enclosed with a steel band
> over the brush/commutator area.
> My future plan is to add extra motors as needed, if needed, so I might
> need to buy only enclosed/certified motors, (if available) or enclose
> them in some kind of box. This then raises the additional question of
> whether a dedicated box is sufficient to eliminate the need for the
> motor or whatever having a marine certification label.
>
> Any thoughts/facts?
>
> Thanks,
> John
>
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