Date   

Re: Mizzen Mast wiring conduit and channels

Alan Leslie
 

Hi Bill, when I installed my SSB antenna wire from the main backstay, I drilled a hole in the mizzen mast for the wire and pushed it down the mizzen mast. There's a removable panel on the port side so you can pull a cable down. Then remove the panel in aft head by the mirror, pushed piece of coat hanger wire from the mast access down and out beside the mirror, tied the wire to it and pulled it through.....

Hope this helps
Cheers
Alan


Re: [Amel Yacht Owners] Furuno VHF FM2721

Germain Jean-Pierre <jgermain@...>
 

Hello Graham,

I have precisely the SH 2200E; the E suffix indicates conformity to the Euro standards.

Two days ago, I reviewed my SH booklet: in the 2200E, the FOG function is not available.  The USA/Canada version has the FOG function available if it is installed in conjunction with a SH PA.

Regarding your specific question about the internal GPS, it is absolutely reliable installed at the NAV table.

Remember, if Euro based, you need a special DSC course before you can legally operate a DSC VHF.  I don’t know about other jurisdictions.

GL


Jean-Pierre Germain
SY Eleuthera, SM 007.



On 30 Aug 2015, at 10:00, Graham Cresswell grahamjcresswell@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Jean Pierre,

With your GX2200, is the built in GPS sufficiently sensitive to get a fix if the radio is installed below at the nav station or did you have to connect a separate GPS with an external aerial?

Graham Cresswell
SY Jamesby
M240

On 27/08/2015 05:05, Germain Jean-Pierre jgermain@... [amelyachtowners] wrote:
 

Hi Drew,


I went or The Standard Horizon 2200.  DSC with incorporated AIS and the ability to buy an optional remote for the cockpit.

2 features I like are the PA function which allows verbal comms with deck crew and the FOG horn which emits a selectable signal based on the conditions of the moment.

GL with your installation.


Jean-Pierre Germain,
SY Eleuthera, SM 007



On 27 Aug 2015, at 05:59, Kent Robertson karkauai@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi Drew,
I replaced mine 7 years ago with the iCOM IC-M604 marine VHF and added a remote mic at the helm.  I mounted it sideways where the old VHF was mounted.  It's one of the earlier digital calling ones, but I haven't found a need for that feature.  I have heard the SCREECH it puts out a couple times when someone puts out an emergency TX...it's enough to wake the dead, and it gives you their GPS coordinates.  If I ever wanted to get another boat's attention, there's no way they could ignore that alarm.
The radio's been flawless.

Kent
SM243
Kristy


On Aug 26, 2015, at 6:34 PM, 'Gaffney, Drew' drew.gaffney@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Our original VHF stopped working. After turning on, it says:
Now Init EROM
Erase 0700
ID Data Write
Completed
Power Off.

Furuno USA says it's a foreign product and they know nothing about it. Furuno UK thought it might need the EPROM re-flashed, but didn't do it any longer.
Has any seen this message or know what it means?
What have members used to replace this unit? A "black-box and a remote handset would be nice if available.
Thanks,
Drew
SM390, Lying Rebel Marina, Norfolk VA








Re: [Amel Yacht Owners] Mizzen Mast wiring conduit and channels

Andrew & Kate Lamb
 

Bill

On our boat there are a couple of strings that run down the length of the mast from top to the bottom on the port side to behind the inspection window - and possibly through to the area to the right of the mirror - not sure about this last statement but I am sure it was not hard to get a wire through from this area to behind the inspection area. These strings can be hooked from the hole in the mast on the port side at the radar level, therefore allowing a wire to be pulled through. I ran a wire for a 4g arntenna via this route.

Andrew
Ronpische
SM472


On 30 Aug 2015, at 14:34, yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

I have a whistle/hailer/fog horn that I want to mount under the radar. I have the bracket to mount it. I am hoping to save some time by learning from others that have done this on a Super Maramu. I have looked inside the inspection Port on the port side near the bottom of the mast. I have also looked inside the access panel on the right side of the mirror in the aft head. H


ow did you run the cablecable inside the mizzen mast from the radar to the opening in the aft head?


Any advice will be appreciated.


Bill

BeBe 387

Currently Barcelona, Spain


Mizzen Mast wiring conduit and channels

yahoogroups@...
 

I have a whistle/hailer/fog horn that I want to mount under the radar. I have the bracket to mount it. I am hoping to save some time by learning from others that have done this on a Super Maramu. I have looked inside the inspection Port on the port side near the bottom of the mast. I have also looked inside the access panel on the right side of the mirror in the aft head. H


ow did you run the cablecable inside the mizzen mast from the radar to the opening in the aft head?


Any advice will be appreciated.


Bill

BeBe 387

Currently Barcelona, Spain


Re: [Amel Yacht Owners] Correction on Propane tank capacity in the lazarette

Bill & Judy Rouse <yahoogroups@...>
 

BeBe has USA tanks... one 10# and one 20#. .both are aluminum tanks.

And, we also have an EU blue GAZ tank.

Only 2 of the 3 tanks fit in the compartment. In our west around circumnavigation beginning at St. Thomes USVI, we were able to fill our American tanks until we arrived in Greece. I bought the EU GAZ tank in Greece, and refilled it in all countries in EU so far...in Barcelona, Spain now.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+39 333 121 8115 Italy Mobile
+1832-380-4970 USA Voice Mail

On Aug 30, 2015 3:13 PM, "Alexandre Uster von Baar uster@... [amelyachtowners]" <amelyachtowners@...> wrote:

 


Good morning,

A little while ago, I believe saying I have two 20 Lbs propane tank in the lazarette storage.
I just refilled one and in fact it is a 10 lbs.
So like S/V Bebe, I have two 10 Lbs...

Sorry for the mistake and potential misleading.
http://nikimat.com/propane_tank_storage.html

Sincerely, Alexandre

SM2K NIKIMAT
Flamingo Marina, Grand Bahama


Correction on Propane tank capacity in the lazarette

Alexandre Uster von Baar
 

Good morning,

A little while ago, I believe saying I have two 20 Lbs propane tank in the lazarette storage.
I just refilled one and in fact it is a 10 lbs.
So like S/V Bebe, I have two 10 Lbs...

Sorry for the mistake and potential misleading.
http://nikimat.com/propane_tank_storage.html

Sincerely, Alexandre

SM2K NIKIMAT
Flamingo Marina, Grand Bahama


Re: [Amel Yacht Owners] Inverter Grounding

Chris Flack
 

Hi Bill,

In the Victron manual (Appendix A: Connection Overview), it refers to the different connections in summary as
A  AC input L1 and neutral (N)
C  AC output line L1 and neutral (N)
R  PE (ground)  terminals

We are packing up about yo leave in the morning and won't have time to remove the cover and check again,  but I know there wasn't anything connected to R terminals until the electrian connected it yesterday.

Sorry I can't answer more but packing stuff away and packing up the boat.

Cheers
Chris
Hemera SM031


-----Original Message-----
From: "'Bill & Judy Rouse' yahoogroups@... [amelyachtowners]" <amelyachtowners@...>
To: amelyachtowners@...
Sent: Sun, 30 Aug 2015 10:56 AM
Subject: Re: [Amel Yacht Owners] Inverter Grounding

 

Chris,

I apologize but I cannot follow your "ground" and "neutral" terminology. I am certainly not an electrician or an electrical expert. And your electrician is most likely a good electrician, but probably has limited experience with a marine environment such as Amel'a sophisticated wiring schemes that help us avoid electrolysis.

Before I make my point to you, let's agree on the following terminology:

230VAC 50Htz:
Load (Live or Positive wire) at 230VAC - BROWN
Return (Neutral or Negative wire) - BLUE
Earth (Ground) - GREEN/YELLOW

110VAC 60Htz:
Live (Positive) at 110VAC - BLACK
Neutral (Negative) - WHITE
Ground (Earth) - GREEN

220VAC 60Htz:
Live (Positive) at 110VAC 60Htz RED
Live (Positive) at 110VAC 60Htz BLACK
Neutral (Negative) - WHITE
Ground (Earth) - GREEN

DC or Direct Current of any voltage:
Positive - RED in US, RED or BROWN in EU
Negative - BLACK in US, BLACK or BLUE in EU

The EU inverter most assuredly has a three wire connection to 230VAC 50Htz:
Load (Live or Positive wire) at 230VAC - BROWN
Return (Neutral or Negative wire) - BLUE
Earth (Ground) - GREEN/YELLOW but NOT the green/yellow Amel bonding system

And, the EU inverter has a two wire connection to the battery bank:
Positive - Amel uses RED
Negative - Amel uses BLACK

MY IMPORTANT POINT TO YOU IS:
If internally your inverter has a connection between the Battery Bank Negative BLACK WIRE and the 230VAC 50HTZ Earth, you may have an electrolysis problem. AND, that may have been the reason that Earth was not connected. You need to know if there is an internal connection between the Battery Bank Negative and Earth. Because if there is, I would forgo the Earth connection to the inverter.

Bill
BeBe 387





Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+39 333 121 8115 Italy Mobile
+1832-380-4970 USA Voice Mail

On Aug 30, 2015 8:32 AM, "Chris Flack chris@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Good Morning and thanks all,

I got the electrician to look at his work and he agreed that it should have Ground connections to the terminals within the inverter and came back with his tools and wire and connected it up to the main AC.

There are Neutral connections for both AC Input and AC Output.

Cheers
Chris
Hemera SM031

On 30-Aug-15 1:41 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] wrote:
 

Chris

 

I think it depends what you mean by “grounded” – my understanding of these things is that with an inverter, like a generator and the boat side of an isolation transformer that one of the AC 230v outputs (nominated as neutral) provides the grounding or earth point for your AC system i.e. the  “common return path for electric current”.

 

So when you say the inverter do you mean the casing or the AC output earth as the latter is already the reference ground in the system?

 

Andrew

 

Ronpische

SM2k 472

Canet en Roussillion, France

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, August 29, 2015 11:04 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Inverter Grounding

 

 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek



Re: [Amel Yacht Owners] Inverter Grounding

Bill & Judy Rouse <yahoogroups@...>
 

Chris,

I apologize but I cannot follow your "ground" and "neutral" terminology. I am certainly not an electrician or an electrical expert. And your electrician is most likely a good electrician, but probably has limited experience with a marine environment such as Amel'a sophisticated wiring schemes that help us avoid electrolysis.

Before I make my point to you, let's agree on the following terminology:

230VAC 50Htz:
Load (Live or Positive wire) at 230VAC - BROWN
Return (Neutral or Negative wire) - BLUE
Earth (Ground) - GREEN/YELLOW

110VAC 60Htz:
Live (Positive) at 110VAC - BLACK
Neutral (Negative) - WHITE
Ground (Earth) - GREEN

220VAC 60Htz:
Live (Positive) at 110VAC 60Htz RED
Live (Positive) at 110VAC 60Htz BLACK
Neutral (Negative) - WHITE
Ground (Earth) - GREEN

DC or Direct Current of any voltage:
Positive - RED in US, RED or BROWN in EU
Negative - BLACK in US, BLACK or BLUE in EU

The EU inverter most assuredly has a three wire connection to 230VAC 50Htz:
Load (Live or Positive wire) at 230VAC - BROWN
Return (Neutral or Negative wire) - BLUE
Earth (Ground) - GREEN/YELLOW but NOT the green/yellow Amel bonding system

And, the EU inverter has a two wire connection to the battery bank:
Positive - Amel uses RED
Negative - Amel uses BLACK

MY IMPORTANT POINT TO YOU IS:
If internally your inverter has a connection between the Battery Bank Negative BLACK WIRE and the 230VAC 50HTZ Earth, you may have an electrolysis problem. AND, that may have been the reason that Earth was not connected. You need to know if there is an internal connection between the Battery Bank Negative and Earth. Because if there is, I would forgo the Earth connection to the inverter.

Bill
BeBe 387





Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+39 333 121 8115 Italy Mobile
+1832-380-4970 USA Voice Mail

On Aug 30, 2015 8:32 AM, "Chris Flack chris@... [amelyachtowners]" <amelyachtowners@...> wrote:

 

Good Morning and thanks all,

I got the electrician to look at his work and he agreed that it should have Ground connections to the terminals within the inverter and came back with his tools and wire and connected it up to the main AC.

There are Neutral connections for both AC Input and AC Output.

Cheers
Chris
Hemera SM031

On 30-Aug-15 1:41 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] wrote:
 

Chris

 

I think it depends what you mean by “grounded” – my understanding of these things is that with an inverter, like a generator and the boat side of an isolation transformer that one of the AC 230v outputs (nominated as neutral) provides the grounding or earth point for your AC system i.e. the  “common return path for electric current”.

 

So when you say the inverter do you mean the casing or the AC output earth as the latter is already the reference ground in the system?

 

Andrew

 

Ronpische

SM2k 472

Canet en Roussillion, France

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, August 29, 2015 11:04 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Inverter Grounding

 

 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek



Re: [Amel Yacht Owners] Furuno VHF FM2721

Graham Cresswell <grahamjcresswell@...>
 

Jean Pierre,

With your GX2200, is the built in GPS sufficiently sensitive to get a fix if the radio is installed below at the nav station or did you have to connect a separate GPS with an external aerial?

Graham Cresswell
SY Jamesby
M240

On 27/08/2015 05:05, Germain Jean-Pierre jgermain@... [amelyachtowners] wrote:

 

Hi Drew,


I went or The Standard Horizon 2200.  DSC with incorporated AIS and the ability to buy an optional remote for the cockpit.

2 features I like are the PA function which allows verbal comms with deck crew and the FOG horn which emits a selectable signal based on the conditions of the moment.

GL with your installation.


Jean-Pierre Germain,
SY Eleuthera, SM 007



On 27 Aug 2015, at 05:59, Kent Robertson karkauai@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi Drew,
I replaced mine 7 years ago with the iCOM IC-M604 marine VHF and added a remote mic at the helm.  I mounted it sideways where the old VHF was mounted.  It's one of the earlier digital calling ones, but I haven't found a need for that feature.  I have heard the SCREECH it puts out a couple times when someone puts out an emergency TX...it's enough to wake the dead, and it gives you their GPS coordinates.  If I ever wanted to get another boat's attention, there's no way they could ignore that alarm.
The radio's been flawless.

Kent
SM243
Kristy


On Aug 26, 2015, at 6:34 PM, 'Gaffney, Drew' drew.gaffney@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Our original VHF stopped working. After turning on, it says:
Now Init EROM
Erase 0700
ID Data Write
Completed
Power Off.

Furuno USA says it's a foreign product and they know nothing about it. Furuno UK thought it might need the EPROM re-flashed, but didn't do it any longer.
Has any seen this message or know what it means?
What have members used to replace this unit? A "black-box and a remote handset would be nice if available.
Thanks,
Drew
SM390, Lying Rebel Marina, Norfolk VA






Re: [Amel Yacht Owners] Inverter Grounding

Chris Flack
 

Good Morning and thanks all,

I got the electrician to look at his work and he agreed that it should have Ground connections to the terminals within the inverter and came back with his tools and wire and connected it up to the main AC.

There are Neutral connections for both AC Input and AC Output.

Cheers
Chris
Hemera SM031

On 30-Aug-15 1:41 AM, Andrew Lamb andrew.lamb@... [amelyachtowners] wrote:

 

Chris

 

I think it depends what you mean by “grounded” – my understanding of these things is that with an inverter, like a generator and the boat side of an isolation transformer that one of the AC 230v outputs (nominated as neutral) provides the grounding or earth point for your AC system i.e. the  “common return path for electric current”.

 

So when you say the inverter do you mean the casing or the AC output earth as the latter is already the reference ground in the system?

 

Andrew

 

Ronpische

SM2k 472

Canet en Roussillion, France

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, August 29, 2015 11:04 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Inverter Grounding

 

 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek



Re: [Amel Yacht Owners] Inverter Grounding

sailormon <kimberlite@...>
 

Hi Alan,

I knew that,

I was just confused when you were using the word neutral, which of course we do not use on our Amels.

I have been doing some extensive research on the Amel systems, especially when used in the USA or Caribbean. In particular I am looking into USA available battery chargers, Inverters , and the old battery chargers that were supplied with older Amels as mine- the dolphin.

 

I hope to have some proof positive and very accurate explanations in the near future.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, August 30, 2015 12:15 AM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Inverter Grounding

 

 

Hi Eric,

 

USA domestic power 4 wire system has two phase lines (red and black), a neutral (white) and a ground (green). The standard 110VAC power outlets are wired red-phase, white-neutral, green-ground...or black-phase, white-neutral, green-ground. There is 110VAC between red-white and black-white.

What you are describing is the composite system from two different phases of 110VAC to make a 220VAC circuit. so you have 220VAC between the red and black wires and no neutral connection. 

Countries that are 220/240VAC have a 3 wire system which is Brown-Phase, Blue-Neutral, Green/Yellow-Ground. The neutral is tied to ground at the distribution point. The green/yellow ground wire is connected to the case of the appliance to prevent shock hazard.

 

Cheers

Alan

Elyse SM437

 


Re: [Amel Yacht Owners] Inverter Grounding

Alan Leslie
 

Hi Eric,

USA domestic power 4 wire system has two phase lines (red and black), a neutral (white) and a ground (green). The standard 110VAC power outlets are wired red-phase, white-neutral, green-ground...or black-phase, white-neutral, green-ground. There is 110VAC between red-white and black-white.
What you are describing is the composite system from two different phases of 110VAC to make a 220VAC circuit. so you have 220VAC between the red and black wires and no neutral connection. 
Countries that are 220/240VAC have a 3 wire system which is Brown-Phase, Blue-Neutral, Green/Yellow-Ground. The neutral is tied to ground at the distribution point. The green/yellow ground wire is connected to the case of the appliance to prevent shock hazard.

Cheers
Alan
Elyse SM437
 


Re: [Amel Yacht Owners] Inverter Grounding

sailormon <kimberlite@...>
 

Here in the USA a 50 amp plug has 4 wires,

Red –hot-

Black- Hot-

Green- AC ground

And a white which we call a neutral which has no use on an Amel .

 

What neutral are you referring to?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, August 29, 2015 7:25 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Inverter Grounding

 

 

Generally the "ground" is connected to the metal case of a device. The AC neutral is not ground and not connected to ground. The current flows in the phase and neutral wires. there should be no current flowing in the ground wire.

AC neutral is connected to ground at a land based AC distribution point.

The concept of a "ground" in AC distribution systems is to provide a safe path for current in case of an AC fault in a connected appliance.

An Earth Leakage Circuit Breaker (ELCB) like the one on the panel above the galley monitors the phase and neutral currents. If there is an imbalance it means there is a fault and current is flowing in the ground wire and the breaker will trip.

If your inverter has a metal case the ground connection will be to this case and it should be connected to your AC ground for safety.

On the DC side if the case ground is connected internally to the DC -ve, then you should not use this inverter on an Amel boat. The ground loop you create between the battery and the bonded metal parts of the boat will cause those metal parts to corrode.  

Cheers

Alab

Elyse SM437


Re: [Amel Yacht Owners] Inverter Grounding

Alan Leslie
 

Generally the "ground" is connected to the metal case of a device. The AC neutral is not ground and not connected to ground. The current flows in the phase and neutral wires. there should be no current flowing in the ground wire.
AC neutral is connected to ground at a land based AC distribution point.
The concept of a "ground" in AC distribution systems is to provide a safe path for current in case of an AC fault in a connected appliance.
An Earth Leakage Circuit Breaker (ELCB) like the one on the panel above the galley monitors the phase and neutral currents. If there is an imbalance it means there is a fault and current is flowing in the ground wire and the breaker will trip.
If your inverter has a metal case the ground connection will be to this case and it should be connected to your AC ground for safety.
On the DC side if the case ground is connected internally to the DC -ve, then you should not use this inverter on an Amel boat. The ground loop you create between the battery and the bonded metal parts of the boat will cause those metal parts to corrode.  
Cheers
Alab
Elyse SM437


Re: [Amel Yacht Owners] Inverter Grounding

Andrew & Kate Lamb
 

Chris

 

I think it depends what you mean by “grounded” – my understanding of these things is that with an inverter, like a generator and the boat side of an isolation transformer that one of the AC 230v outputs (nominated as neutral) provides the grounding or earth point for your AC system i.e. the  “common return path for electric current”.

 

So when you say the inverter do you mean the casing or the AC output earth as the latter is already the reference ground in the system?

 

Andrew

 

Ronpische

SM2k 472

Canet en Roussillion, France

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Saturday, August 29, 2015 11:04 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Inverter Grounding

 

 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek


Re: [Amel Yacht Owners] Inverter Grounding

karkauai
 

I'm no expert either, but I believe that, on some Inverter's at least, you can separate the 220AC and 24DC grounds.  If so, ground the 220 to the boat's 220 ground, and the 24DC to the battery negative.
Olivier?
Kent
SM243 Kristy
Currently Newport RI


On Aug 29, 2015, at 5:59 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Chris,

I am not an electrician by any means, but let me tell you what I think.

The "earth wire" is not needed to operate the inverter, nor is it needed to operate any 230VAC device that I am aware of. Look at other 230VAC devices you have. Some have the third prong and some do not.

So, why does your inverter have an "earth" connection?
  1. The first answer is that it is probably required by CE (Conformité Européenne) and their experts have determined that you need protection from yourself and Acts of God.
  2. Next possible reason is that Electromagnetic Interference (EMI) may be created by the inverter and grounding (earth) may significantly reduce that noise, at least in non-marine environments. In marine environments, we make sure the inverter is OFF when using the SSB.
  3. And lastly, if an internal short happens whereby the outside metal case of the inverter is connected to 230VAC, the existence of the "earth" will trip any on-board GFI breaker (we have one on the side of the breaker panel...it is the main breaker and GFI breaker). It would also trip a shore power GFI breaker. 
The benefit is that if you touched the case after an internal short electrified the case, you would not get shocked if you had an "earth" wire and a GFI breaker. There is also a very, very outside chance that an internal short (without earth connection) could pass 230VAC to the "Return" wiring (the blue wire in 230VAC) and if you had a very old 2 wire 230VAC device, or one which someone did some "rewiring," there is a possibility that the metal case of that rewired device could be electrified. I can't even comprehend those odds, but if you do have some "rewired" 230V devices on your boat, get a qualified person to check these out, not only for this inverter issue.

My guess is that the earth was not connected to your inverter because it is internally connected to 24DC Negative...am I correct? I would not worry about it, but rather be careful not to touch the case if it is metal. Also, I think that I would be thankful that someone realized a potential problem with the internal connection of DC Negative to Earth.

I hope my simple understanding has simplified things for you, rather than complicated...actually, I do not know the complicated answer.

Bill
BeBe 387

On Sat, Aug 29, 2015 at 11:04 AM, chris@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek



Chesapeake Bay Boat Yard

Stephanie DiBelardino <stephiedib@...>
 

we live in Norfolk part of the year. For eons, my husband has used Cobb's Marina in Norfolk, same inlet off the bay as US Naval Amphibious Base at Little Creek. Not as nice as the Deltaville location -- smaller and not geared for cruisers -- strictly a boatyard. They are flexible about you doing some or all of your work. very convenient to an Enterprise Car Rental Location and to the Norfolk Airport.

If you gave any questions, feel free to contact me at stephiedib@....

I will be in Norfolk ( Willoughby Spit) from Sept 19 to the 30th. if I can be of any help, you can send a text message to 757 351- 9596. I get messages through google voice and I have not yet ported that phone to a cell phone.

Fair Winds!
Stephanie


Re: [Amel Yacht Owners] Inverter Grounding

Bill & Judy Rouse <yahoogroups@...>
 

Chris,

I am not an electrician by any means, but let me tell you what I think.

The "earth wire" is not needed to operate the inverter, nor is it needed to operate any 230VAC device that I am aware of. Look at other 230VAC devices you have. Some have the third prong and some do not.

So, why does your inverter have an "earth" connection?
  1. The first answer is that it is probably required by CE (Conformité Européenne) and their experts have determined that you need protection from yourself and Acts of God.
  2. Next possible reason is that Electromagnetic Interference (EMI) may be created by the inverter and grounding (earth) may significantly reduce that noise, at least in non-marine environments. In marine environments, we make sure the inverter is OFF when using the SSB.
  3. And lastly, if an internal short happens whereby the outside metal case of the inverter is connected to 230VAC, the existence of the "earth" will trip any on-board GFI breaker (we have one on the side of the breaker panel...it is the main breaker and GFI breaker). It would also trip a shore power GFI breaker. 
The benefit is that if you touched the case after an internal short electrified the case, you would not get shocked if you had an "earth" wire and a GFI breaker. There is also a very, very outside chance that an internal short (without earth connection) could pass 230VAC to the "Return" wiring (the blue wire in 230VAC) and if you had a very old 2 wire 230VAC device, or one which someone did some "rewiring," there is a possibility that the metal case of that rewired device could be electrified. I can't even comprehend those odds, but if you do have some "rewired" 230V devices on your boat, get a qualified person to check these out, not only for this inverter issue.

My guess is that the earth was not connected to your inverter because it is internally connected to 24DC Negative...am I correct? I would not worry about it, but rather be careful not to touch the case if it is metal. Also, I think that I would be thankful that someone realized a potential problem with the internal connection of DC Negative to Earth.

I hope my simple understanding has simplified things for you, rather than complicated...actually, I do not know the complicated answer.

Bill
BeBe 387

On Sat, Aug 29, 2015 at 11:04 AM, chris@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek



Inverter Grounding

Chris Flack
 

Good Afternoon All,

Would someone be able to explain the implications and possible dangers of not having your inverter grounded?

This goes back to a question I was asking about inverters a couple of weeks ago.

Thanks
Chris Flack
Hemera SM031
Currently at Gocek


Re: [Amel Yacht Owners] Re: Lofrans Tigre Windlass intermittently unresponsive to helm or unit switches.

seafeverofcuan@...
 

Great Reply Bill,
                       I have been that man. When I first bought the boat even though it had very few hours that was the exact scenario.
It had been so overtightened the clutch was cracked
New clutch, shaft and keys ,etc. were required.

Trevor