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Electric Shock Drowning Incidents – Marinas© |
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In last week's newsletter we told of the tragic death of a teenage girl in Alabama that is being attributed to electric shock drowning; we included a link to the website of David Rifkin and Kevin Ritz, The Electric Shock Drowning Prevention Association. David Rifkin has provided us with the updated report of Electric Shock Drowning Incidents.
This year’s update includes 3 new deaths. We like to send this update at this time each year when swimming weather is upon us. The information and list is maintained and provided by Quality Marine Services, LLC in Jacksonville, FL. If you have any questions or for more information please contact: David Rifkin 904-382-7868 qualitymarinesvcs@comcast.net. Jim Shafer, the originator of this list is currently unable to participate in this area.
Electric Shock Drowning Incidents - Marinas©
(In-Water electrocution fatalities included - Revised 5/9/2016)
Low level ground fault leakage in the marina AC shore power system can cause lethal potentials to appear on any underwater metal surface – either on a boat or on the dock. In fresh water the electric field surrounding this surface can paralyze a swimmer. There is no warning that this condition exists, and it has resulted in a number of drownings. Further, there is no post-mortem evidence that electric shock was the cause. Therefore, many of the fatalities listed below are only the known electric shock caused drownings, which were investigated because of circumstantial evidence, i.e., multiple deaths, eye witnesses, considerable distress, cries for help, shock sensation reported by rescuers, etc.
Our studies have shown that, in salt water, the high voltage gradients required for electric shock drowning could not be established with the available fault current levels. In no cases can we attribute cause of death to electric shock drowning in salt water.
We do not know the exact wiring errors or ground faults that created some of the incidents listed below, but it can be assumed that an energized AC conductor (L1 or L2) came in contact with a bonded (grounded) metal object, and coincidently, this object was not connected to the shore bonding (grounding) system. This caused a voltage to appear on these under-water metal objects (both on boats and docks). This created a lethal electric field around the object (a person in this electric field can be paralyzed leading to drowning, or direct electrocution). This was true in every case that was investigated.
No database has been found that catalogs “Electric Shock Drowning” – our term for this phenomenon. The incidents listed below came from various sources, i.e., investigation, press, third party, and eye witness reports. Dates and details are missing for some. There is no way to know what fraction of the total fatalities this listing represents, but it may be reasonable to assume that it could be small. We have no reports of fatalities in salt water due to electric shock drowning.
Some of the fatalities listed here were actually caused by ventricular fibrillation (electrocution), because the victim’s head was reported not to have been submerged. They are technically not drownings but are listed here since the causes are similar to drowning by electric shock.
1. |
Apr 16, 2016 |
Smith Lake, Priceville, AL. Two teenage girls entered the water from a private dock. Both girls were getting shocked in the water. One girl drowned, the other treated and released from hospital. The victim’s father and his son jumped into the water to assist. The father blacked out after both were feeling the shocks. The power was turned off at the house, after which the father came to and survived along with son. A missing ground and faulty lighting fixture are suspected to be the cause. |
2. |
Mar 27, 2016 |
Palm Springs, CA, Indian Canyons neighborhood. Six people were shocked in a private swimming pool, one of them a man who jumped in to rescue his daughter. He was overcome by electric shock and pronounced dead at the hospital. The 5 others were treated, and one young girl remained hospitalized in critical condition. Faulty pool wiring is suspected as the cause. Homes were built in 1963, but not sure of the age of the swimming pool. |
3. |
June 21, 2015 |
Lake of the Ozarks, Woods Hollow Cove, 22.2 mile marker, MO. A 21 year old man and fellow swimmer felt electricity in the water near a dock. The 21 year old grabbed a dock ladder to get out when he was electrocuted and fell back into the water. Someone ran ashore and turned off the power likely saving the other man in the water. A faulty junction box between dock and residence is suspected. The occupants tried to reset the circuit breaker but it would trip after 10-15 seconds of being turned on. The last attempt to turn the breaker on coincided with the 2 swimmers being near the dock as it got dark (breaker controlled dock lights). |
Click here to view the complete Electric Shock Drownings List
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Copyright© Mike Holt Enterprises of Leesburg, Inc. All Rights Reserved This article is protected by United States copyright laws and may not be published without prior written permission. |
Mike Holt Enterprises of Leesburg, Inc. 3604 Parkway Blvd. Suite 3 Leesburg, FL 34748 |
"... as for me and my house, we will serve the Lord." [Joshua 24:15]
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Comments
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Here is a Sept.3 2016 unfortunate swimming pool death in North Carolina that is not on the list.
Link to article on the death:
wncn.com/2016/09/12/report-details-how-electricity-entered-raleigh-pool-killing-teen-girl/
Link to the official report [with photos] on the electrical cause of death [link also in above article]:
mgtvwncn.files.wordpress.com/2016/09/heritage-point-community-pool.pdf
aha, can't post active links I see Doug Fink September 28 2016, 9:27 am EDT Reply to this comment |
A large problem I encounter, is that there are no provisions to require upgrades to existing hazardous situations. If there is danger there should be Inspections required and remediation performed. ( like a recall on cars for a dangerous situation ) Richard DeHart May 19 2016, 7:59 am EDT Reply to this comment |
I'm curious as to why salt water marinas and dock do not have the same problems.
Richard DeHart May 19 2016, 7:53 am EDT Reply to this comment |
Reply from: Mike Holt May 19 2016, 9:01 am EDT I'm working to find out the difference between fresh water and salt water effects on electric shock drowning. I'll let you know what I find out via a video. Reply to Mike Holt Reply from: David rifkin May 19 2016, 12:38 pm EDT Human more conductive than freshwater. Saltwater acts as farraday cage around human in saltwater. Reply to David rifkin |
Very informative information that many persons may not be aware of. Good this is being highlighted and readers should continue to highlight hazards to their local government officials (building inspectors, emergency services, pool and marine facility operators, safety organizations, etc. Thomas May 18 2016, 11:51 am EDT Reply to this comment |
Ground fault protection. Wouldn't that solve this problem? Marcelp May 18 2016, 6:05 am EDT Reply to this comment |
Reply from: JEFFREY May 18 2016, 8:16 am EDT IT SHOULD PREVENT DEATH BUT IT DOES NOT FIX THE PROBLEM. EXAMPLE...NO GROUND FAULT PROBLEM DETECTED UNLESS SWIMMER TOUCHES A LIGHT SWITCH ,OUTLET,BOAT DOCK FRAME. BECAUSE OF ALL BEING PROPERLY GROUNDED. A LOT OF THESE OLD DOCKS ARE SUPPLIED BY 2 OR 3 WIRES. NONE OF WHICH ARE ARE A GROUNDING CONDUCTOR AND MOST OLD STYLE WIRING DID NOT INCLUDE A REAL/RELIABLE GROUNDING CONDUCTOR. Reply to JEFFREY Reply from: Mike Holt May 18 2016, 9:55 am EDT Yep! See 555.3 in the NEC. Reply to Mike Holt Reply from: David Rifkin May 18 2016, 3:46 pm EDT An operable GFP device improves one's chances of surviving an accidental water entry. But we don't purposefully jump in the bath tub with hair dryer with a GFCI. Reply to David Rifkin |
Help....i,live,at lake,of,the,ozarks...electrician for,over 30,years..ther is,no real codes here..fire,departments inspect,but not,all do..some of the,lake there is,no inspection...there is,no,law or reguirments todo,electric installed..how can this be,fixed.. mark marschke May 17 2016, 10:41 pm EDT Reply to this comment |
1. NO SWIMMING AROUND BOATS OR LIGHTED/POWERED DOCKS !
2. MANDATORY (NEC)GROUND FAULT PROTECTION @ EVERY DOCK ! Wyatt May 17 2016, 9:44 pm EDT Reply to this comment |
Reply from: David Rifkin May 17 2016, 10:17 pm EDT In the upcoming version of NEC looks like Article 555 will now apply to private docks as well. Reply to David Rifkin Reply from: Mike Holt May 18 2016, 9:53 am EDT That is correct, to Ground Fault Protection of 30mA will be required. Reply to Mike Holt Reply from: donald electrician June 8 2016, 12:38 pm EDT Thanx Mike for this wonderful awareness of a Major Problem .
I have always headed in this direction on Marinas having used my "J" mans card on a 360 unit " Dockominiums "
Metered Power Post Low and High voltage ( under 600 volts )That can be purchased or rented .
There is a limited amount of Dock Space in the Florida Keys ,
early 1980's . i had the pleasure of the first phase of 180 Floating Docks , which required a " J " mans card on each job.
I lived on a sail boat on a Power Dock , Length Wise , 3 or more years ... when it was still cheap , $250 a month , not metered .
The last I saw of the Keys was in 2008/2009 and Boat Docks in
a cheaper island than Key West was 350K$ to 500k$ for the purchase price and 1K$ to 1500$ a month Dock Club Fees ...
Yes people had discover the Conch Republic ... Now for the rich only ...
If an Icsolation Transformer adds $700 to $5,000 to the cost
of a Boat... So Be It ...
Or the Death toll will Rise Yearly ...
Thanx Again for your Devotion to this constant source of Death,
I will take the time to read all of this info ...
Don
Reply to donald electrician |
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Reply from: JEFFREY May 18 2016, 8:19 am EDT GET REAL. ARE U 95 YEARS OLD OR WHAT.
JUST FIX THE PROBLEMS AND FORGET WRITING A NEW RULE THAT NO 1 WILL FOLLOW AND IS ALMOST IMPOSSIBLE TO INFORCE. Reply to JEFFREY |
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