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Old 12-23-2006, 11:31 AM   #1
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Exclamation Shocking! (heads up)

I just put the chestnuts into a small blender to chop them up for the stuffing, this blender is the sort used for making Baby Food (or if you only need to do a small amount).

I took the Plug out of the Socket and ZAP! it got me!
natuarly I droped the thing, and won`t go into what I said (but it wasn`t Frosty the snowman! although it began with the same letter).

now it got me to thinking, I`m probably Not the only one using appliances that haven`t been used normaly in the year (some may even get New ones from Santa too). What if I hadn`t just dropped it but perhaps knocked something Hot off the cooker?

now I`m the last one on the planet to ever be called a "Panic Merchant" but I tested this after and it read over 400Volts DC, and when I shorted the plug prongs across my steel mixing bowl it made a reasonable sized spark, a sharp *CRACK* sound and left a tiny black pit mark in it

so please, Be carefull when unplugging these things, they CAN store a charge, enough to make you jump and possibly injure youself or someone as a result!

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Old 12-23-2006, 11:39 AM   #2
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I don't think I understand how it can "store a charge". Was the mixing bowl on its electric mixer stand or just a metal mixing bowl on the counter? Glad you weren't hurt, but I don't understand this.
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Old 12-23-2006, 11:39 AM   #3
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Wow, good thing you did drop it!! Thanks for the heads up. Could happen with any appliance, I would think.
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Old 12-23-2006, 11:52 AM   #4
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well the "Science" behind it is to put a Capacitor across the motor to act as a an EM noise filter.

ever put a hairdryer, drill or vacuum cleaner on near a TV and seen the dots that appeared like interferance on the picture?, well this Cap is supposed to reduce that by acting as a shunt for over voltage spikes caused by Back EMF from the motor.

However! there should be a resistor across this cap to discharge it fairly quickly and that`s not Always the case with some makes.
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Old 12-23-2006, 12:16 PM   #5
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glad you're ok, yt. it's not fun getting crispy.

the high voltage cap makes sense, but it should be low farads for noise reduction. it'll give you a shock, but there's not enough juice to hurt you. we used to wrap the leads around and charge up high voltage ceramic caps, then leave them around on someone's bench. scares the crap out of you when you pick them up.

my favourite charged device is a crt tube. (yeah, i know, redundant).

unplug that suction cup that comes off the flyback transformer, and stick a wet finger on the contact.

fun times.
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Old 12-23-2006, 12:44 PM   #6
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Boy, you sure know how to have a good time!
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Old 12-23-2006, 12:48 PM   #7
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lol, nerds are cruel, little people, andy.

and we're dam*ed proud of it.

ya know, there are 10 kinds of people on the earth: those who understand binary, and those that don't.
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Old 12-23-2006, 12:58 PM   #8
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the cap rating is only 0.5mfd, mylar type, and yeah, we used to charge em up in the Lab and chuck one over to a mate and shout "Catch" (they invariably Do!).
as for the flyback transformers, I used to rewind my own primaries and run them through a pair of 2n3055s, I have a fantastic one here hooked up to my CW voltage MX and get a lovely 36Kv out, that then charges the bank of Ex-Soviet Millitary caps (gotta love eBay).

Aaaanyway, before I derail my own thread, this really is a serious issue, any unsuspected SHOCK in the kitchen, be it electrical or otherwise can lead to Serious injury, and electrics designed this way are a great way to find out! :(
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Old 12-23-2006, 01:07 PM   #9
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a good way to be careful is to check for the underwriters lab label (UL label) on electrics/electronics.

if it bears the approved label, the device is supposed to have been tested for safety.
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Old 12-23-2006, 01:13 PM   #10
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this has the CE mark on it and a few other nonsensical ones, there`s no British Standard Kite-mark though?

although it WAS purchased at a Very Large reputeable outlet.
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