(Topic ID: 350523)

How many volts did I just receive?

By king-pin

8 months ago


Topic Heartbeat

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  • 23 posts
  • 16 Pinsiders participating
  • Latest reply 8 months ago by Mr_Tantrum
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#1 8 months ago

I have just had my games room floor re-done and just finished moving all the machines back into position.
Before this I was replacing the varistor and thermistor because the game was blowing fuses on the power switch box.
Didn't realise that my friend who helped me set them back up had turned the power on at the socket.
When I grabbed the power box just now I got a decent boot, enough to make me let it go pretty quickly.
Just wondering how much voltage I received?
Thanks.

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#2 8 months ago

Been there done that!

#3 8 months ago

240 volts. Give or take 20 volts.

#4 8 months ago

I would have changed the line filter too. I have changed quite a few on machines after Getaway that have died.

#5 8 months ago
Quoted from Pinballpeople-au:

240 volts. Give or take 20 volts.

Thought so,.
Thanks

#6 8 months ago

not enough to kill

13
#7 8 months ago

It's not the voltage but the amperage you should be worried about.

#8 8 months ago

It’s not the fall you should be worried about, it’s the sudden stop at the bottom.

#9 8 months ago
Quoted from schudel5:

It's not the voltage but the amperage you should be worried about.

Good advice, he’ll get a charge out of that!

#10 8 months ago

I've shocked myself numerous times working on various projects. When it comes to the household 110V, while it is a little painful and very surprising, I actually kind of like the feeling I have afterwards - stimulated and wide awake. However, one time I was working on my electric stove that was 220V and thought I had flipped the breaker but accidentally did the wrong one. That flat out hurt and I hated the experience in every way.

#11 8 months ago

I bet it's probably enough to put you into a lethal cardiac rhythm. I wonder what the equivalent in joules would be?

With biphasic defibrillators, synchronized cardioversion is 50-200 joules. (used when you have a pulse but are in an unstable rhythm...uncontrolled Afib or SVT for example) If the shock is delivered during the wrong phase of the cardiac electrical cycle you can go into a lethal cardiac rythm VTach/Vfib.

Defibrillation (no pulse, Vfib or Vtach) is 120-200 joules. 200 joules = about 17amps.

Defibrillation is what you see on TV when they yell "the patient is flatlinned" and shout out "clear" and put electrical paddles on the patient's s chest and shock them.

Also, one more tidbit you all might find interesting, we do not shock when someone is "flatlinned"! I know, TV lied to you. The whole reason to deliver a shock is to disrupt erratic electrical activity in the heart so the hearts natural pacemaker can take over and resume normal cardiac rythm (called normal sinus rythm).

When you're "flatlinned"...(no one in the medical field says this, it's actually called asystole) there is no electrical activity in the heart (thus the flat line on the monitor) so there is nothing to shock. So we do "high quality CPR" until your heart goes into a shockable rhythm (less likely) or until the code is ended because we can't get you back (most likely). Once you're asystole there is a very slim chance of getting revived and the code is usually ended after several rounds of CPR with the patient remaining asystole.

#12 8 months ago

There are old electricians.

There are bold electricians.

There are no old bold electricians.

Voltage is no joke. Remove power. Then double check that power is removed.

Skin resistance saved you here. Just a bit more current and your muscles can lock, making it impossible to pull away.

Worse than that, your buddy, seeing you being electrocuted, might have tried to pull you away, and then both of you could have died.

I've had this exact situation kill multiple family members.

Be safe, then double check that you are being safe.

#13 8 months ago
Quoted from Foxxstone_80:

I bet it's probably enough to put you into a lethal cardiac rhythm. I wonder what the equivalent in joules would be?
With biphasic defibrillators, synchronized cardioversion is 50-200 joules. (used when you have a pulse but are in an unstable rhythm...uncontrolled Afib or SVT for example) If the shock is delivered during the wrong phase of the cardiac electrical cycle you can go into a lethal cardiac rythm VTach/Vfib.
Defibrillation (no pulse, Vfib or Vtach) is 120-200 joules. 200 joules = about 17amps.
Defibrillation is what you see on TV when they yell "the patient is flatlinned" and shout out "clear" and put electrical paddles on the patient's s chest and shock them.
Also, one more tidbit you all might find interesting, we do not shock when someone is "flatlinned"! I know, TV lied to you. The whole reason to deliver a shock is to disrupt erratic electrical activity in the heart so the hearts natural pacemaker can take over and resume normal cardiac rythm (called normal sinus rythm).
When you're "flatlinned"...(no one in the medical field says this, it's actually called asystole) there is no electrical activity in the heart (thus the flat line on the monitor) so there is nothing to shock. So we do "high quality CPR" until your heart goes into a shockable rhythm (less likely) or until the code is ended because we can't get you back (most likely). Once you're asystole there is a very slim chance of getting revived and the code is usually ended after several rounds of CPR with the patient remaining asystole.

Yeah I've had a lot of those cardioversions for afib. I was getting to the point where I was gonna ask them to just leave me awake for the shock so I could see what it's like, but I never had the guts to do it

#14 8 months ago
Quoted from Foxxstone_80:

I bet it's probably enough to put you into a lethal cardiac rhythm

It 100% is.

My welding engineer had (had!!) an old EM.

One day he was mucking around with it and grabbed something that was 230v (NZ line voltage)

Luckily for him, his wife came in the room at the time and saw it happening, and pulled the plug.

He had to go to the hospital and have his heart stopped and restarted to get it back into the proper rhythm.

If you grab something, the voltage can clench your muscles and you can’t let go. (If you are wary of an appliance for example, use the back of your hand to touch it as your arm muscles will contract, throwing your hand off it. That’s the theory anyway…)

If in doubt - unplug it.

rd

#15 8 months ago
Quoted from xsvtoys:

Yeah I've had a lot of those cardioversions for afib. I was getting to the point where I was gonna ask them to just leave me awake for the shock so I could see what it's like, but I never had the guts to do it

Trust me, you don't want to be awake for it.

Did you eventually get an ablation done?

#16 8 months ago
Quoted from Foxxstone_80:

Trust me, you don't want to be awake for it.
Did you eventually get an ablation done?

3 ablations. I’m pretty good for now.

#17 8 months ago
Quoted from xsvtoys:

3 ablations. I’m pretty good for now.

Three. Damn. I just had my first in November. Hope to not need any more. AFIB is no joke. Now back to the original subject matter

#18 8 months ago
Quoted from Mr_Tantrum:

I've electrocuted myself numerous times.

I don't think so! Electrocuted once and you're dead.

#19 8 months ago
Quoted from JethroP:

I don't think so! Electrocuted once and you're dead.

That word usage does bother me as well, especially since I'm an electrician, but if you do look it up, it does actually mean severe injury or death due to a shock.

So yeah, if he wasn't severely injured all those times, then he certainly shouldn't be using that terminology.

#20 8 months ago

I search electrocution vs shock, here's what I get:

Screen Shot 2024-01-22 at 7.13.41 PM (resized).pngScreen Shot 2024-01-22 at 7.13.41 PM (resized).pngScreen Shot 2024-01-22 at 7.14.23 PM (resized).pngScreen Shot 2024-01-22 at 7.14.23 PM (resized).png
#21 8 months ago

Reminds me of working in the farm when I was younger. Had an uncle that touched a box with a 440 short. 440 doesn’t let you go. Fortunately someone turned the power off. Still completely destroyed his bicep muscle on that arm. He taught me to touch those 440 boxes on the irrigation with the back of my hand before grabbing them. If they get ahold and no one is around to shut the power off, you’re dead.

#22 8 months ago
Quoted from JethroP:

I search electrocution vs shock, here's what I get:[quoted image][quoted image]

I hear ya, man. And I agree! Just telling you how it's defined by some... like these 2 entries:

Screenshot_20240122_220336_Google (resized).jpgScreenshot_20240122_220336_Google (resized).jpg
#23 8 months ago

Okay, so I experienced electrical shock and not electrocution.

Not exactly applicable, but . . .

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