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keel grounding

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pinetree View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pinetree Quote  Post ReplyReply Direct Link To This Post Topic: keel grounding
    Posted: 04 February 2014 at 02:46
I have noticed there are no ground wires attached to keel bolts? Has anyone experienced the same? Is this normal?
vcp
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Mark_J1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark_J1 Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2014 at 10:24
Seems to be these days.  You'll likely find no earth bonding on your seacocks or rudder post either.  I remember a previous myHanse thread that went into this in some detail.

Mark
Hanse 400e "Grey Goose" Hull #31
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panos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote panos Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2014 at 14:13
There is no hull anode either so there is nowhere to connect the earth cable.

Edited by panos - 04 February 2014 at 14:14
Panos

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gizmo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gizmo Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2014 at 16:18
This is only my personal opinion not a recommendation. But if you bond items to an earth point it only attracts stray currents by giving them a route back to earth. An isolated metal item can not pass current if the current has no where to go. A plastic pipe full of water will act as a conductor but a loop will stop the conduction by providing an air gap.
You can wear a pair of rubber insulating boots and using one hand hold a 220v live cable without getting an electric shock. There is No where for the current to go! use your other hand to touch a metal object and you will get a shock.
So bonding everything on your boat will only attract trouble.

Again only my opinion and don't try it at home!!

Ken

Edited by gizmo - 04 February 2014 at 16:20
Ken
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Brufan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brufan Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2014 at 17:29
My H355 from 2011 has an original keel grounding.  
But the connector on a bolt is a bit loose.
Bruno

hanse 355 - 57

S/Y Spicy Ginger

White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system (modifications done now), Simrad-Jefa autopilot.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Idelfix Quote  Post ReplyReply Direct Link To This Post Posted: 04 February 2014 at 19:41
There is a hull anode in my boat right under the zink.



Edited by Idelfix - 04 February 2014 at 19:48
"Keep sailing in free wind"

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gizmo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gizmo Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2014 at 17:50
Idelfix

There is one of these on our 2008 430 as well but I can't remember where the cables connecting it come from.
I will have a look tomorrow, I presumed that this was the 'lightening protection' grounding plate and not for use as an anode or common bonding point for seacocks etc.

ken
Ken
430e # 161
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kweetje View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kweetje Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2014 at 20:05
Our keel is grounded and we have a separate anode on the hull connected to ground plane
First 4000 miles, no substantial problems
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Idelfix Quote  Post ReplyReply Direct Link To This Post Posted: 07 February 2014 at 20:06
i think the 230 v ground go to socket panel and then to ground plate.



Edited by Idelfix - 07 February 2014 at 20:12
"Keep sailing in free wind"

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harveymolly View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote harveymolly Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2017 at 14:16
Our Hanse 400 (2011), needs a new rudder. It seems an electrical current has caused massive corrosion to the rudder stock.

Last year while replacing our steering cable the marine engineers told us they had earthed the lightening conductor. Could this have caused the problem?
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