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ZAP! Another ESD Casualty

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econobiker
User Rank
Iron
Re: One static charge after another
econobiker   6/10/2013 2:16:35 PM
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nichollr wrote:

"I've noticed at our local Walmart that as I push some of the carts, I get a static discharge through my hands.  It's really uncomfortable.  Have other's noticed this same problem?"

Often you will see some versions of  shopping carts with a discharge strap or small chain hanging down rubbing the ground.  This also seems to be a greater problem with the newer plastic carts than the older metal carts... There has been alot of info about this problem with a specific retailer which you can find by searching: Wal-mart shopping cart static electricity shock.

Rob Spiegel
User Rank
Blogger
Re: One static charge after another
Rob Spiegel   6/11/2013 9:46:31 PM
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Thanks TJ. I look forward to seeing them.

Larry M
User Rank
Platinum
Re: Painful excersize
Larry M   6/13/2013 8:58:42 AM
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g-whiz wrote: " I was electrically isolated, in intimate contact with a hard rubber belt, moving and rubbing against another surface."

The other name for this particular apparatus is "Van de Graff generator." They can generate up to 5 million volts. See the Wikipedia article for more details.

 

 

Cadman-LT
User Rank
Platinum
Everyone
Cadman-LT   6/17/2013 5:03:35 AM
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I would have to guess that almost everyone has had this happen to them at some point in time. I sure have.

J. Williams
User Rank
Platinum
Re: One static charge after another
J. Williams   6/17/2013 5:34:42 PM
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Yes, the carts at my local Sam's Club replicate four little Van De Graaf generators with the wire basket and frame working as a top load.  The whack I get from the cart is quite startling.

dbues
User Rank
Gold
Re: ESD discharge
dbues   7/1/2013 8:50:11 AM
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Frank,

Good idea to pull the batteries.  Didn't work, though.  Not sure what the right way would be to discharge the alleged capacitor.  I might try to remove the batteries and then short the DC + and - together.  Otherwise, I'll have to take a look inside.

Dwight

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