Why rubber shoes (or crocs) don't prevent electric shock
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- čas přidán 4. 07. 2024
- In this video, we take a look at the curious case of getting zapped while seeminly isolated from the ground. It turns out in some cases, electricity doesn't need a conductive path.
(AKIO TV) MMXXIV
/ actual_akiotv - Věda a technologie
I can't believe this video only got 645 views. Intuitive and clear explanation of a widely misunderstood phenomenon. Great work and keep doing your thing.
Don't just touch it with your hand.
Drunk peeing against the electric fence. But the enlightenment came like a flash.
Afterwards, even when drunk, they knew not to pee there.
@@jensschroder8214 ouch 😂
Excellent video and explanation! So much makes more sense now and somehow college classes failed to even cover this. I had always assumed birds avoided the really high voltage lines due to step potential but capacitive coupling makes much more sense. It also explains why folks working on transmission lines from helicopters attach bonding lines and why those attachments do generate quite powerful sparks.
Very cool video explanation and pacing
tldw: rubber gloves ftw
Great video. Learned a lot :D
I’ll do you one better. With AC, you provided the RMS current flowing through the body. You might still get a fatal or harmful shock from the peak current if it’s flowing for long enough which, of course, depends on the frequency.
The human body can accumulate a static charge of up to 3000 volts, which is only discharged when you touch ground, so your argument that insulated shoes allow a current to flow through the body can't be right. You can only build up a maximum charge and then discharge it to earth. For rubber shoes to break down and pass current the voltage would have to be substantially higher.
@@ChucklesMcGurk If your body capacitance is charged up to 3kV, that charge leaves your body when you touch ground, creating a short burst of current.
In exactly the same way, charge flows *into* your body when your capacitance is 'empty' and you touch a 3kV wire, producing the same current except the other way, charging you up.
Stay away from high voltage? But i work with high voltage transmition, how am i going to do my job? 12:05
@@Koser_meg Well I can only guess what work exactly you do, but I'm sure you'll know for anything >1000V you'll usually want to keep some distance. I can't remember the name of the product but there's this long insulating stick these folks (perhaps you too) use all the time to manipulate switchgear etc. I'd say that counts as staying away.
@@AKIOTV yeah, we do use them when operating really high voltage yes. They are also used for checking if there is voltage on the line :)
we often work close with high voltage, but sometimes we get high voltage induction, wich is fun :)
Best part is raychem muffer, it's a thing that goes on a end of a high voltage cable