[Sonar] Sonar Digest, Vol 168, Issue 5

[Doug Beaudet]

Tom,

Thanks for sharing. I'm a "salty" from Mass and had no idea about fresh
water electrocution. I worked my way through college as a marine diver, so
plenty of time in the water at marinas and commercial docks. Never once
experienced any shocking sensation in salt water. I've also found that the
water at the marina docks is the least clean part of  that body of water,
so all the more reason to head out to the lake to cool off.

Cheers,
Doug





On Mon, Aug 5, 2019 at 12:00 PM <sonar-request at lists.wyc.org> wrote:

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> Today's Topics:
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>    1.  Swimming around the WYC docks (Thomas Brown)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 5 Aug 2019 10:28:49 -0500
> From: Thomas Brown <tbrown9164 at gmail.com>
> To: sonar <sonar at lists.wyc.org>
> Subject: [Sonar] Swimming around the WYC docks
> Message-ID:
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> CAGEjoGKy5vmBcXCnK92HXby7dftKEWCmeCO3x4qdL_AvoRkvYw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> All:
>
> I noticed some people swimming around the WYC docks the other day.
>
> Just a reminder that in fresh water,  we need to absolutely be careful
> about electric shock surrounding an electrified dock.    Even if we are not
> hanging onto a loose electrified wire somehow,  any ground fault to the
> water where someone can get electrocuted is around 100 feet in radius!
>
> If someone accidentally falls into the water around the dock make sure they
> can speak to you when they are in the water.   One of the initial symptoms
> of this type of electrocution is total paralysis,  including speaking
> ability.
>
> Sometimes people from away  (salt water locales) are not familiar with
> this.  This type of electrocution does not normally occur in salt water
> because in salt water,  'we' are not the least path to ground.   In fresh
> water,  'we',  being fairly salty,  become that path to ground and
> therefore expose ourselves to extreme risk.
>
> When I lived up in Bayfield,  there was an unfortunate incident where
> someone fell off a boat during a party.  Everyone was laughing about how
> they fell into the water,  but the person who fell in was unable to speak
> and slipped below the surface permanently.   That person did not survive.
>
> Thomas Brown
> "Maximizing Business by Minimizing Surprises"
> ~~~~~~~~_/)~~~~~~~~_/)~~~_/)~~~~~~~~
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