Ow! Sh!t that hurt! [Archive]

Geeky1

19 Dec 2003, 11:54pm

Hehe. If there is a God, he protects the stupid. I've shocked myself 4 times or so... just a matter of not paying attention.

This time, I was switching the Tt SmartFan2 I have in my Antec 400w PS to thermal control (from manual control) and I wanted to test it. Since I didn't want to pull the cover off if something was wrong, I left it off. But you have to hold PSes and stuff in place to plug them in, so I put my hand on the (open) top of the PS. Idiotic thing to do.

However, the after effects are fun. I'm more awake now than I have been in a while, and I've got more energy. Sure, my head hurts and I'm a bit dizzy, but hey... I'm hyper! :D ;D

GHoosdum

19 Dec 2003, 11:59pm

'got more energy' - heh! ;D

TheLostSwede

20 Dec 2003, 12:15am

My fault geekster? Did i gave you any ideas yesterday? :D

Thrax

20 Dec 2003, 12:22am

Just remember Geeky; newegg doesn't have another one of you in stock when you break yourself.

Geeky1

20 Dec 2003, 12:24am

muddocktor

20 Dec 2003, 12:25am

So Geeky, what got you, the 110 or a cap?;D

That hurts, dude!:eek:

Geeky1

20 Dec 2003, 12:30am

The hell if I know. Probably a cap, because I didn't throw a circuit breaker. But then, I had my hand on the TOP of the PS, so who knows...

Dexter

20 Dec 2003, 12:31am

madmat had this to say
LOL @ Geeky...I've been hit by 480V on a machine at one of my past jobs and I can tell you I won't be doing it again soon.
Glad to know that you're ok man.

480 volts, or 480 watts?

If it was volts, what the hell were you working on that uses 480 voltage?

Dexter...

Geeky1

20 Dec 2003, 12:34am

480 volts, and industrial equipment

If it had been 480w, he'd be dead, unless the voltage were like 0.01v or something.

Dexter

20 Dec 2003, 12:44am

Geeky1 had this to say
480 volts, and industrial equipment

If it had been 480w, he'd be dead, unless the voltage were like 0.01v or something.

Ya, 'cause it's the wattage that'll kill you.

I'm just curious to see hear what was he was working on....

Dexter...

madmat

20 Dec 2003, 12:59am

I was working on some finish line band saws in a lumber mill I worked at, my coworkers had left the switch boxes open and failed to warn me it was hot and I brushed up against it but the circuit I created was just in my hand so it didn't stop my heart thank goodness.
It was 480 volts (triple phase) at 20a.

Dexter

20 Dec 2003, 1:06am

madmat had this to say
I was working on some finish line band saws in a lumber mill I worked at, my coworkers had left the switch boxes open and failed to warn me it was hot and I brushed up against it but the circuit I created was just in my hand so it didn't stop my heart thank goodness.
It was 480 volts (triple phase) at 20a.

:doh:

I'll bet that tickled.....not.

Dexter...

Thrax

20 Dec 2003, 1:30am

480v/20a.. Yowza.

keto

20 Dec 2003, 4:27am

Here's a neat trick for ya. Get an old car, that still uses points & condensor ignition. When the timing goes slightly out of whack, use a screwdriver to adjust the points. Adjust, go start car to check timing, turn off car but leave ignition in the forward position. Put screwdriver back inbetween points to adjust em again and do a "funky chicken dance banged my head on the hood ow my hand is burning and tingling good thing I wasn't leaning my crotch against the fender" dance. No idea what watts that would be (60-70 amps cranking power I think) but it's 12v and numbs the fingers rather effectively *ow*.

Or how about "the idiot who wired this house ran 2 different circuits thru 1 switchbox so when the breaker for one room is off and I'm changing out the light fixture the circuit inside that goes to the next room is still hot but I didn't know that till I got tossed off the ladder" trick, it's fun too.

LawnMM

20 Dec 2003, 6:12am

Actually, its amperage that kills you, not voltage

mmonnin

20 Dec 2003, 6:44am

Been there done that. 90W PSU tho.

LawnMM is right. 50 micro Amps to the heart can kill you. Direct path tho, as in open chest. Anyway that path is rarely ever thru your heart when being shocked.

Anybody remember a certain someone and a paperclip?

polarys425

20 Dec 2003, 7:47am

Geeky1 had this to say
Thrax, very true. Need to pay more attention in future.

Mackanz, naah... I'm putting the NF7-S back in it's case, and switching the cooling system around in the process. However, I did notice something... The 400w Antec I have is made by Channel Well Technologies... I forgot what the model was (I think it's a PP403-X), but it's whatever came in the SX1240.

ive got two Antec PP-403X power supplies, and i had to replace the same resistor in both of'em. the damn resistor was under rated for the wattage and they both burnt out.

i put higher wattage rated resistors in, and they have both been humming along fine ever since.

ginipig

20 Dec 2003, 4:16pm

Keto, u bring back some fond memories of when I first started tuning cars. To the rest of you that got spanked: wow

edcentric

20 Dec 2003, 5:02pm

Old point and coil systems were great for that. 20kV at a mA. Not going to kill anyone but sure jolt the hell out of you. Real fun to rig up to a door knob.....

Straight_Man

20 Dec 2003, 5:30pm

Well, high wattage really is the killer. What happens, is nerves, like wires, can only take so much load. Amperage to heart will stop it, even in small amounts, but heart, if not exposed to such wattage that the nerves are burned dead, CAN be restarted or circulation and oxygen flow through blood system maintained with CPR until the restarting can be done, IN MANY cases. This is why electrical linemen work in teams usually and BOTH normally are very well trained in CPR.

Unlike wire, nerves cannot be replaced fast enough to get replacement in place before brain is electrically non-functional. We do not know how to regrow tham fast enough. High voltage, with relatively low amperage per volt, can really burn out nerves by overloading them. Wattage is amps times volts, high amp, low volts, relatively high wattage compared to circuit normal-- and overload kills nerves and they grow back REAL slow compared to other things. And nerves transmit and are designed to transmit, very tiny electrical pulses that are amplitude variable mostly.

John.

CaffeineMe

20 Dec 2003, 6:21pm

I had a 100W PS in my hand once, unpowered, removed from the case, ought to have been safe. Wrong.

I was handling it from below, and I let the palm of my hand come in contact with the soldering points on the bottom. POW! It hit me, hard, I threw it across the room and spent the rest of the day feeling the muscles in my arm, shoulder, and neck get tighter and tighter as the day wore on. High electricity+me=ouchtime.

Moral of the story, ALWAYS use caution when handling a power supply, powered or otherwise. They bite.

TheLostSwede

20 Dec 2003, 7:46pm

Geeky1 had this to say
Thrax, very true. Need to pay more attention in future.

Mackanz, naah... I'm putting the NF7-S back in it's case, and switching the cooling system around in the process. However, I did notice something... The 400w Antec I have is made by Channel Well Technologies... I forgot what the model was (I think it's a PP403-X), but it's whatever came in the SX1240.

Mine too Geeky. Says CWT on the pcb in the psu.
I can only tell ya that i couldn't start the damn psu. No matter what i do. When you have time, can you open your psu up and remove the fanconnector and the plug to the little daughterboard that controls the speed to the fan. That's the way i have mine and maybe that is what causing it. I dont know.

I once touched one of those electrical fences that farmers uses for it's cows and horses. I had the shakes in my shoulders for 2 days.

Geeky1

20 Dec 2003, 8:54pm

Mackanz, the fan speed control PCB on mine has actually been disconnected for at least a year... I think you may have a dead PS. If it won't power up with that paper clip trick, the only thing I can think of is that it's dead.

ginipig

20 Dec 2003, 8:55pm

lol Mackanz. Aren't you able to sue the farmer for inadequate warning signs? Or was it that you were too drunk to know the difference?

My friend went through a fraternity's usual initiations. It involved farms...

mmonnin

21 Dec 2003, 5:44am

Ageek: Wires, or in the case of a body like you mentioned, will burn out because too much current is trying to pass through it at one time. Current is I=Q/t or charge over time. Too much charge in a short time will burn the wires. Most likely caused by bad wiring or a short circuit.

Wattage or P=VI or voltage*current but the voltage is not whats going to kill you so its the current.

polarys425

21 Dec 2003, 8:06am

also, in many cases the higher the voltage the better.

higher voltage tends to knock you back off of it. during a shock, muscles contract, thus if your gripping the source its very hard to let go. its one reason so many people are killed on house current.

at least when your knocked back off of it, other people on the scene can tend to you a lot quicker.

but then entry and exit is a big factor as well. so theres a lot of luck involved.

TheLostSwede

21 Dec 2003, 10:28am

Geeky1 had this to say
Mackanz, the fan speed control PCB on mine has actually been disconnected for at least a year... I think you may have a dead PS. If it won't power up with that paper clip trick, the only thing I can think of is that it's dead.

I'm running it right now, but it only work's when i run it on the board. Really strange.

Ginipig, yes, i were drunk. Maybe i'll sue Jack Daniels. ;D

EyesOnly

21 Dec 2003, 4:24pm

Touched a fence myself once. Not a good choice. Luckly i used my right hand. I felt my hand start to shake. Then the arm, later my torso and finally my legs. Not sure if i would have been here if i'd used my left hand.

Also took a part a psu once but let it drain a whole night before i opened it. Never got shocked. Moral of the story. If a fence says it's electric it is and if you're thinking of opening a psu either follow the instruction and DON'T or be carefull and let it drain for maybe a day before you do.

Tim

4 Apr 2004, 5:34pm

Touching the spark plug wire of a running lawnmower / snowblower / weed eater will wake you up real quick!

Shorty

4 Apr 2004, 6:01pm

Wow.. holy bumpage batman!

Geeky1

4 Apr 2004, 9:21pm

Mr.Kwitko, check your PMs!!

MJO

5 Apr 2004, 12:53am

Thrax, very true. Need to pay more attention in future.

Mackanz, naah... I'm putting the NF7-S back in it's case, and switching the cooling system around in the process. However, I did notice something... The 400w Antec I have is made by Channel Well Technologies... I forgot what the model was (I think it's a PP403-X), but it's whatever came in the SX1240.

As far as I know Channel Well Technologies (CWT) manufactures most, if not all, PSU's from Antec.

BTW: Good to hear you are okay. Fried Geeky doesn't sound all that appealing. :hair:

MJO

5 Apr 2004, 12:57am

Actually, its amperage that kills you, not voltage

Uh oh, then you have to be careful around a powered on PresHot.
It is some amperage going through a PresHot motherboard.

A 3.4 GHz PresHot pulls around 80A.

BTW: You could get a buzz from the old BNC network cables.
I had a tingling sensation in my fingers for several hours.
The worst thing is, that I accidentally touched it several times. In the wrong places that is, and at several occasions.

floppybootstomp

5 Apr 2004, 1:27am

Watts, amperage, I believe current is the word :D

Hurts, dunnit? DC much more painful than AC, but both can be lethal.

Had a few whacks off of TV sets meself. Numbed arm for 30 minutes or so. Ouch.

Glad you're OK there Geeky1.

Geeky1

5 Apr 2004, 2:39am

Yeah. It's been a while since I shocked myself tho (this time was the most recent one)... so, if you'll excuse me, I have to go jam a fork in an electrical outlet... :D

primesuspect

5 Apr 2004, 2:51am

Did you know that POTS lines carry 48v at ringtone and up to 100v when ringing?

Me and -tk both (independently) found out the fun way.... When punching down new POTS lines in a wiring closet! Wheee zap!

OverLoad

5 Apr 2004, 3:01am

question can you get a shock from the outside of a cable box?:confused:

primesuspect

5 Apr 2004, 3:17am

Probably not... But I wouldn't rule anything out.... :)

MediaMan

5 Apr 2004, 3:31am

Geeky

I've got a toaster and a bread knife with your name on it.

Lincoln

5 Apr 2004, 3:41am

Aranyic has a good electicity story to share... :nudge:

;D

EyesOnly

6 Apr 2004, 9:04am

Let's hear it then. :D All this talk about getting zapped almost makes me wanna replace my psu fan without turning it off first. :nudge: :Pwned: :necro: :confused: :eek:

edcentric

6 Apr 2004, 2:25pm

Keto, I used to rig car coils to door knobs. You can dump about 20kV out of one, at microamps of course. Ah, inductance and capacitance can be so fun.
Line voltages are not fun. I hate getting shocked from a high current source, It hurts so much worse.

Geeky1

6 Apr 2004, 5:04pm

I guess I just have an electric personality. I was at the Porsche dealership yesterday- I got zapped by a Boxster (guess it didn't like me... :-/ ;D) and by the door twice. Stupid static electricity.

RADA

6 Apr 2004, 5:17pm

HEY what's that glow I see coming out of the western sky? Is it a plane? The Moon?, aw no, it's just Geeky getting :Pwned: :hair: by his power supply! Always said you had an electric personality Geeky.

:bigggrin: RADA