Getting shocked with engine running - Page 2 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 


Like Tree12Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 11-18-2011
Junior Member
 
Join Date: Nov 2011
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Augsbut is on a distinguished road
Diesel engine and no autopilot
Reply With Quote Share with Facebook
  #12  
Old 11-18-2011
boatpoker's Avatar
Senior Member
 
Join Date: Jul 2008
Location: Toronto
Posts: 1,053
Thanks: 8
Thanked 25 Times in 24 Posts
Rep Power: 7
boatpoker is on a distinguished road
12 volts can not only shock you, it can kill you .... its the amperage that does the damage not the voltage. Your 12 volt starter probably draws about 400amps and your alternator could probaly push out 20 - 50 amps depending on what you have. It takes milliamps to cause paralysis. You have a short somewhere and this is one of those times you should hire a qualified marine electrician and not rely on "dock talkers"
jimrafford likes this.
__________________
Dirt People Scare me
Reply With Quote Share with Facebook
  #13  
Old 11-18-2011
Izzy1414's Avatar
..........huh?..
 
Join Date: Apr 2007
Location: Grants Pass,OR
Posts: 395
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Izzy1414 is on a distinguished road
Possibly static electricity and not wiring related at all? Heck, maybe it's just a different pair of shoes.
__________________
S/V Boccata d'Aria

I'm not sure what Dickens are, but I think they may be important and I sure as hell don't want them scared out of me.......Izzy
Reply With Quote Share with Facebook
  #14  
Old 11-18-2011
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,149
Thanks: 2
Thanked 24 Times in 24 Posts
Rep Power: 10
erps will become famous soon enough erps will become famous soon enough
Quote:
12 volts can not only shock you, it can kill you
I can touch the positive terminal and negative terminal of a 600 amp battery bank. How come I don't get shocked? And why am I still alive?
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
  #15  
Old 11-18-2011
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,071
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Was there any AC on at the time? Inverter?
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #16  
Old 11-18-2011
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,665
Thanks: 56
Thanked 48 Times in 45 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Quote:
Originally Posted by btrayfors View Post
Twelve volts isn't going to shock you.Bill
Obviously you have never set the timing on an old style ignition distributor.

I have been zapped more than once by a leaky spark plug lead when twisting the distributor. It was comparable to what hits you when you get tickled by a defective 110 outlet or switch.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
  #17  
Old 11-18-2011
bgeddes's Avatar
Member
 
Join Date: Jul 2010
Posts: 58
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 5
bgeddes is on a distinguished road
Quote:
12 volts can not only shock you, it can kill you
Based on the resistance of skin on the average person, that statement is not true. If the 12 volts is applied to a more conductive part of the body, mucus membranes or an open wound, perhaps it could do some harm.

The National Electrical Code has designated high voltage at over 40 volts. The place where most people could experience a shock or induce the flow of current through the skin.

That said, I fully advocate seeking professional or qualified assistance in any area someone feels a lack of understanding.

For the OP's original question, more information about the circumstance will be required.
Reply With Quote Share with Facebook
  #18  
Old 11-18-2011
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,071
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Quote:
Originally Posted by SloopJonB View Post
Obviously you have never set the timing on an old style ignition distributor.

I have been zapped more than once by a leaky spark plug lead when twisting the distributor. It was comparable to what hits you when you get tickled by a defective 110 outlet or switch.

That is not 12 volts.
Attached Thumbnails
Getting shocked with engine running-5.jpg  
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #19  
Old 11-18-2011
AdamLein's Avatar
Senior Member
 
Join Date: Nov 2007
Location: Coquitlam, BC
Posts: 1,866
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 7
AdamLein will become famous soon enough
Quote:
Originally Posted by SloopJonB View Post
Obviously you have never set the timing on an old style ignition distributor.

I have been zapped more than once by a leaky spark plug lead when twisting the distributor. It was comparable to what hits you when you get tickled by a defective 110 outlet or switch.
I'm pretty sure that ignition systems work by accumulating a very large potential difference across a high-resistance medium (the spark gap). The voltage in a spark plug is way over 12V.

Quote:
Originally Posted by boatpoker
12 volts can not only shock you, it can kill you .... its the amperage that does the damage not the voltage.
That's true, but first the current has to get past the resistance of your skin, which requires high voltage.
__________________
s/v Essorant
1972 Catalina 27
Reply With Quote Share with Facebook
  #20  
Old 11-18-2011
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,071
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
I work with 12 volts and batteries all the time and I have never got a hint of a buzz - even when I was holding an non-insulated wrench that arced to a ground.

If you shorted a battery terminal and held it long enough it would get hot - I didn't.

Now 120 volts - you notice that.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
help! Rough running engine adamavis Gear & Maintenance 2 07-17-2010 01:58 PM
Engine still not running / need advice mauidan15 Gear & Maintenance 13 05-04-2008 12:17 PM
engine still not running mauidan15 Gear & Maintenance 18 04-29-2008 11:44 PM
I'm Shocked!! Captsomer Gear & Maintenance 21 03-07-2008 10:09 PM
Engine running too cool JMS02050 Gear & Maintenance 8 09-01-2007 09:16 AM


All times are GMT -4. The time now is 04:56 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.