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TOPIC: Galvanic Isolator

Galvanic Isolator 10 Jun 2018 09:11 #99318

  • Andy Soper
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Sorry - my typo - for clarity the text from the KB is:

The problem with simple GIs was first recognised in the USA, where 1 in 20 (!) GIs tested were faulty. Hence, a standard was introduced (ABYC A-28) for 'fail-safe' GIs. These are naturally more expensive than a basic ('fail-unsafe') GI but still 1/3 the cost of an IT. Some have warning lights or alarms when they fail. In failure, they will preserve safety, at the cost of corrosion.
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Galvanic Isolator 10 Jun 2018 08:27 #99316

  • Pete Clark
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Andy Soper wrote: ...As ever the ones that are fail-unsafe are more expensive!

Hi Andy.
I've been looking at this again from home. Sorry to be pedantic but did you mean fail-safe or fail-unsafe?
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Galvanic Isolator 08 Jun 2018 09:51 #99258

  • Andy Soper
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Hello Pete,

I've been looking at these : galvanic-isolator.co.uk/shop/ for our narrowboat.

As ever the ones that are fail-unsafe are more expensive!
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Andy Soper
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mv Neeltje
Coookham
0044 (0) 303 666 0636

You don't need a barge to join - a dream of boating in Europe will do'. See www.barges.org

Galvanic Isolator 08 Jun 2018 09:30 #99257

  • Pete Milne
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PS In answer to Pete Clark's question, the plug-in GI should serve the same purpose as a fixed unit.
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Galvanic Isolator 08 Jun 2018 09:28 #99256

  • Pete Milne
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Accumulated wisdom from past discussions can be found in the Knowledgebase article 'Galvanic Isolation' . The Safeshoremarine GI appears to be a UK-standard, 'fail-unsafe' GI.

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Galvanic Isolator 08 Jun 2018 08:43 #99253

  • Pete Clark
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I have been googling GIs with a view to having one installed and came across this product:

safeshoremarine.com/details%20gi70inline%20easyfit.pdf

i.e. no installation required, just plug it in. From the descriptions and videos I've googled I can see that installing a GI should be no problem as such but with zero electrical knowledge this type of product, whether from Safeshore Marine or from another manufacturer could be equally attractive.

I would be grateful for advice from anyone with electrical knowledge and with experience of this or similar products and/or an informed technical view regarding its viability. Will it serve exactly the same purpose as a fixed model?

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