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Old 06-11-2015, 06:28   #16
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Re: Sailing During an Electrical Storm

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Originally Posted by paulajayne View Post
My Ferro is a floating Faraday cage, but will still not want to get hit.

Don't tempt fate.... Very bad things can happen to ferro's when they get hit by big juice from the sky...
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Old 06-11-2015, 08:44   #17
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Re: Sailing During an Electrical Storm

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Regular gas or electric oven Faraday cage no. Ferrocement hull Faraday cage no. Microwave oven Farady cage yes.

I purchase some anti-static bags that close with a ziplock and are big enough to fit a laptop in. They are made from a metalized plastic specifically for the purpose of protecting delicate electronic components. If they ever fail to work as advertised I will let you know.
Really? I was under the impression that any closed "cage" with sufficiently robust conductive metal, even with large gaps, DOES function as a faraday cage, in which case conventional oven (so, Force 10 for example) YES. And Microwave? Well… ok but your cage material is pretty thin in that case.

Oh, and what happened to Ahab? I rather liked him…
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Old 06-11-2015, 09:06   #18
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Re: Sailing During an Electrical Storm

A ferro hull could well function as a farady cage in my opinion, it could also conduct a tremendous amount of heat into that damp concrete through the steel reinforcement, but I've also heard of holes being blown into fiberglass hulls too.

The anti-static plastic bags? Not sure how many amps they could handle, nor if they block RF, RF is the issue I believe as in what blows electronics?
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Old 06-11-2015, 09:15   #19
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Re: Sailing During an Electrical Storm

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A ferro hull could well function as a farady cage in my opinion, it could also conduct a tremendous amount of heat into that damp concrete through the steel reinforcement, but I've also heard of holes being blown into fiberglass hulls too.

The anti-static plastic bags? Not sure how many amps they could handle, nor if they block RF, RF is the issue I believe as in what blows electronics?
Agree on all counts. The RF burst as well as just straightforward electric current are absolutely GINORMOUS in a lightning strike. I think Delancey might find the little metal strips vaporised, if the leccie decides that it is in the way…
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Old 06-11-2015, 16:46   #20
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Re: Sailing During an Electrical Storm

If Delancey does have electronics fried in his pouches how is he going to tell us, carrier pigeons?
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Old 08-11-2015, 09:05   #21
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Re: Sailing During an Electrical Storm

I was under the impression that a faraday cage could be as simple as two boxes wrapped outside with aluminum foil one nesting in the other.


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Old 08-11-2015, 09:17   #22
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Re: Sailing During an Electrical Storm

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I was under the impression that a faraday cage could be as simple as two boxes wrapped outside with aluminum foil one nesting in the other.


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Well that may be but such a flimsy arrangement would be easily vaporised in a lightning strike, depending upon the path taken.
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Old 08-11-2015, 09:32   #23
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Re: Sailing During an Electrical Storm

You can probably limit damages if you stay out of the way of electric storms.

Once in the storm, if you get hit, expect damages.

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Old 08-11-2015, 09:43   #24
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Re: Sailing During an Electrical Storm

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You can probably limit damages if you stay out of the way of electric storms.

Once in the storm, if you get hit, expect damages.

b.

Easier said than done.....especially in a sailing vessel.


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Old 08-11-2015, 11:17   #25
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Re: Sailing During an Electrical Storm

You need to look up how a faraday box works.


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Old 08-11-2015, 12:00   #26
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Re: Sailing During an Electrical Storm

good grief. i sailed thru many in florida where they claim to have worst lightning in planet but they dont know they dont... just sail. wear rubber shoes rubber suit rubber gloves smile and sail. have a ditch bag ready and a dink available.......not that that would be any better than your boat...... but.......and try not to sail thru their middles....
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Old 08-11-2015, 12:48   #27
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Re: Sailing During an Electrical Storm

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Originally Posted by barnakiel View Post
You can probably limit damages if you stay out of the way of electric storms.

Once in the storm, if you get hit, expect damages.

b.
Sometimes you can avoid them, sometimes they're so big they overtake you. However, I basically agree with this notion...using the radar to "see" where they are, the parts of greater activity, and steering for the areas of lesser activity.

I should hope we all know by now that if we get hit, there will be damages. A lightning strike did $35,000 AUD damage to friends' boat: awful! All the electronics and lots of other bits as well.

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Old 08-11-2015, 16:36   #28
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Re: Sailing During an Electrical Storm

Yes. I 100% agree. Last time we (I) tried to outsmart an electric storm we ended up right below it.

I must admit though no radar here. Possibly with a radar one can evade a one-off 'electric' cloud?

For sure not possible on frontal storms as the electricity seems to be everywhere along the front. One can only sit it out and hope for the best.

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Old 02-06-2016, 08:38   #29
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Re: Sailing During an Electrical Storm

"Damage s". ???


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Old 02-06-2016, 08:48   #30
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Re: Sailing During an Electrical Storm

In the mid pacific we got caught in a really big one with lots of lightning for hours. No increase in wind was around 16-18 knots steady. Another boat we were in contact with took all sails down and motored (in rather confused seas) as they somehow thought that was safer. Another boat got somehow disoriented and ended up 60 miles of course in the morning.

If the big guy upstairs wants to whack you he's gonna whack you. I have seen extensive proof first hand that the marketed lightening avoidance systems do not work. Although I do believe a good grounding system is advisable to safely pass the charge should/when you get hit
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