[C320-list] On-board Portable Generator

[Robert Seastream]

AC and DC grounds are separate.  Engine ground is a DC ground.

Bob


On May 18, 2007, at 9:29 PM, Irv Grunes wrote:

> Guys,
> Isn't the on board AC system grounded to the engine ground some place.
>
> If thats the case just plug the shore power cord with an adapter into a
> standard three prong plug into the generator.
> Then all the grounds are complete.
> Irvgrunes #851
>
> -----Original Message-----
> From: c320-list-bounces at catalina320.com
> [mailto:c320-list-bounces at catalina320.com]On Behalf Of John Frost
> Sent: Friday, May 18, 2007 4:01 PM
> To: 'C320-List'
> Subject: Re: [C320-list] On-board Portable Generator
>
>
> I would be very hesitant to use a portable gasoline generator on a
> fiberglass  boat. See
> http://newboatbuilders.com/docs/portable.pdf
> for some safety thoughts (but not much on grounding)
>
> This document says ground it to the "hull" if you do it. Read that to 
> mean
> keel or water in our case
> http://www.fao.org/docrep/009/u3391e/U3391E04.htm
>
> While the green Equipment Grounding Wire in the cord will carry fault
> currents that might occur in the load and trip the generator's circuit
> breaker as it should, I would expect significant static buildup if you 
> don't
> have some path from the frame of the generator to the water. This could
> startle you or damage electronics. It also could light the gas vapors 
> if you
> try to refuel on the boat (Bad idea)
>
>
>
>
> ----- Original Message -----
> From: Vpweikel
> Sent: 05/18/2007 12:04 PM
> To: c320-list at catalina320.com
> Subject: [C320-list] On-board Portable Generator
>
> I recently purchased a small (1200 watt) portable generator to have
> on-board
> for anchoring out.
>
> The manufacturer recommends grounding the generator while in-use to 
> prevent
>
> static build-up and shock hazard.
>
> Does anyone have any experience or how-to suggestions ?
>
> I suppose one could dangle a wire into the water to do this, but I 
> thought
> I
> would show my lack of electrical knowledge and ask the group for
> suggestions.
>
>
> Paul Weikel
> Second Chance
> Georgetown, MD
>
>
>
>
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