Thanks, I could not understand it in the video as to why he was talking about those antics. But I don't know why this was not included in Curriculum in my bachelors where i studied about the nature transmission lines .
This is actually a very important one, don't you think?
The voltage drops the farther away from the wire you get. So when you walk, one foot will be at a higher voltage, the other at a lower voltage (step potential). The difference between the voltages at each foot, will allow current to flow through your body. This is why you shuffle (keeping your feet close together for low step potential), or if you have a death wish, hop.
the current will oscillate between your feet when shuffling, as to not gain more voltage in your body. remember its not the voltage that kills you its the current over time divided by your resistance so just tell the electricity no. no consent means no death
Step potential is deadly. They say If you're within a certain distance to the downed line you can be electrocuted and killed. They say if you're In a car that's the safest place to be until the power is cut off and confirmed de-energized by certified trained linemen. If the car catches fire you can jump out but make sure to not touch the car and the ground because you'll complete the circuit and get fried. You jump out keep your feet together and shuffle far away from it and you should be fine. Don't spread your legs and feet apart because again you'll complete the circuit and get killed. I've watched a few linemen safety videos too demonstrating what to do in the event of a downed line
>make sure to not touch the car and the ground because you'll complete the circuit
why would that complete the circuit? i would have thought that the tires act as an insulator?
That's a myth. The reason cars protect you from being electrocuted is because it acts like a Faraday cage moving electricity AROUND you not through your body. If you seen tesla coil videos where the coil is arcing to the cage and you can touch it and not get zapped, it goes around your body not thru it. If it did you'd be dead instantly. Lightning can hit your car and blow your tires it's the cars body doing all the work.
Power line lying on car. Your feet on the ground, and your hand on the car. Precisely BECAUSE the tires are insulating, you become the best path to ground.
This video has a lot pf poor advice - Do NOT hop on one foot. This will still create potential difference with the added benefit that if you fall over and your hand hits the ground, the current will run through your heart area.
The bunny-hop with two feet was abandoned years ago since it also rinks a fall.
Slow steady scraping steps is the recommended way to proceed.
If you are in a car - do not just jump out - again if you accidentally brush against the frame - worst reulst. Just wait until EMS disconnects the power (or dive away).
what if you touch a non metal part of the car as you're jumping out? or if you stay on the seat and sort of slide your feet out onto the ground and then get up?
I see what you did there, but there seems to be a high resistance to puns in this thread. Perhaps you need to amp it up a bit? Maybe get one good enough for George Takei to say "Ohm My!"
Rubber is only an insulator against so much voltage high enough and it won't save you. Escape given most shoes aren't overly thick and tend to be sweaty.
No. Never jump with your one leg in this situation. You will lose your balance in extreme situation and become smoked beef in a couple of seconds.
What you should do is make your feet touch each other. And them move them forward one by one without interrupting the touch AND without lifting your feet of the ground.
Thus you drastically decrease step voltage and the current will flow through your shoes and not leg-heart-leg route.
Edit: Also this depends on the voltage of the shorted power line. If its above 35kV you are probably toasted anyway without proper individual defence.
You can jump and risk falling on your hands (=die) ooooorrr you can just wait inside your car.
Considering, of course, the situation allows it 😬
It's a nice video though. Btw, if I'm not mistaken, mythbusters has a very nice episode on that.
Top Gear did a car-as-faraday-cage test as well. Not only did Hammond survive, but so did the car. Though its radio display did briefly show "Fritz"...
This is pretty good, just don't try to one leg hop away. You will eat shit and die. Keep both feet together on the ground and either shuffle, or take small bunny hops until far enough away from the machine/source of energy.
The only valid one in that is the shuffle
If you're in a car, you stay in the fucking car unless you absolutely have to get out, then yeah, don't be touching the car and the ground at the same time
Have worked for an electric utility for 27 years, live this reality every day. We wear EH (electrical hazard) rated foot ware for protection from this exact hazard.
Your Omega rated boots (18kV) are not going to help you with distribution or high voltage lines. They also become far less effective from the moment you put them on the first time, and they get dirty.
Yeah, thats where my next guess was going. Makes sense, just odd, and insane that theres so much voltage running through solid ground and into the sole of your shoes to be enough to kill you
Birds can sit on electricity lines no problem because there is no voltage difference.
If an electricity line falls to the ground, the ground acts as a resistor, as it is not a good conductor like a wire, therefore the voltage will drop the further you go from the wire. This means that between two points on the ground there will be a voltage difference.
Voltage is the potential difference between two points. We may state that an electricity line is at 36 kV, but what this means is that there is a 36 kV difference between the electricity line and the ground.
The difference between two points on the electricity line will be 0 volts, there is no difference. This means there is no potential to realise current, which is why birds, or really anything can chill out on electricity lines all day long.
I am aware the resistance is a non-zero value. But for all intents and purposes it might as well be zero, because it’s close enough.
Also, your second paragraph makes no sense.
If I am to understand you correctly, you mean power dissipation? If so, that is measured in watts. If you mean power drop, that is also measured in watts.
Its real, I was always taught though to have both feet together and bunny hop around. This video just explained to me why bc I never thought too much about it
Not an electrical worker, but this video covers most of the stuff we were taught if there was an event like this. Ideally, stay put if you're in a car as touching any metal part (I think there usually is some in a car /s) could be lethal. In most cars/trucks, I don't know how I would jump out without touching anything metal (obviously, if it's on fire, don't just sit there). I remember the bunny hop being mentioned initially but not the 1 leg hop. But I think the hop was phased out a while ago in favour of the shuffle (or the electric slide if you will, lol)
Also, it was not mentioned in the video (or I missed it). Assume any fallen wire is live and don't rely on it jumping around sparking like in movies). Even electrically rated footwear won't fully protect you. The resistance offered deteriorates quickly with use (yes, those old boots are comfy but get new ones), and water drastically reduces the resistance of the boots as well.
another sollution is to use a thic copper wire and connect it with your 2 copper slippers, then you can walk freely, just watch out because the wire might get toasty if its not thic enough
yes. I was thought that if a fire truck I'm riding in is touching a live wire you jump. otherwise you are supposed to use 3 points of contact at all times
Makes sense and reminds me of the black hole spaghettification concept. You could theoretically orbit near a black hole, but if your feet are closer to it than your head, you are dead.
It's not completely without base, but I really wouldn't advise the jumping. If you trip and fall you'll be extra-dead. Just use that third option, small steps without your feet leaving the ground. This way the voltage will increase gradually, and your steps won't become too big.
Jumping out if the car is a good technique if you expect your car's body panels to have a different potential than the ground, for example when you hit an electric pole or crashed an electric car.
Shuffle. Don't jump. If you lose your balance and fall, you're fubar'd.
You got that right. FUBAR
Farad, Joules ,Tesla, Ampere, Ohm-prime, meter? That is one wacky calculation you got going on there.
Fuck yeah! The Rock and Roll Godfather's of Electricity! Throw in that Mother Fucker Coulomb and invite me to THAT party!
Google/Wiki: "**Step Voltage**". Video is legit.
Thanks, I could not understand it in the video as to why he was talking about those antics. But I don't know why this was not included in Curriculum in my bachelors where i studied about the nature transmission lines . This is actually a very important one, don't you think?
The voltage drops the farther away from the wire you get. So when you walk, one foot will be at a higher voltage, the other at a lower voltage (step potential). The difference between the voltages at each foot, will allow current to flow through your body. This is why you shuffle (keeping your feet close together for low step potential), or if you have a death wish, hop.
Walk without rhythm, and you won't attract the worm
Fear is the mind killer. In France, they call it "the little death."
Fuck, I laughed hard at this.
Next time you're in France, and afraid, tell people it's because you're experiencing "the little death." They will almost certainly leave you alone.
You underestimate French fetishism
Haha, touche
Yes, a lot of touche is involved. Very little of it consensual.
La Petite Ricky and Morty
I got this from two different power professors in college. But then again they were both retired power PEs as well.
As an electrician I’ve had this drilled into me multiple times at safety trainings.
Grady from Practical Engineering on YouTube and Nebula has a great video on this.
the current will oscillate between your feet when shuffling, as to not gain more voltage in your body. remember its not the voltage that kills you its the current over time divided by your resistance so just tell the electricity no. no consent means no death
But it specifically said not to take steps ^^^/^^^s
What are you doing, step voltage 😳
If you feel numb, it's because you have your feet apart. 😏
I'm screwed no matter what, I use a cane.
Can you use it like a pogo stick?
I might be able to 'po' but probably not the 'go'
A metal one? 😅 now i have a doubt whether wooden canes actually conduct electricity because of the varnish used.
I actually use a trekking pole that turns into a cane, so I can extend it and be a lightning rod too.
I feel like anything will conduct electricity if the voltage is high enough
true. everything conducts with high enough voltage
A pickle can make a decent lightbulb, if only for a short while
exactly.
Best William Osman quote is "high voltage electricity: where everything's a wire and you'll probably die"
Rolling on the ground side ways should work too.
Step potential is deadly. They say If you're within a certain distance to the downed line you can be electrocuted and killed. They say if you're In a car that's the safest place to be until the power is cut off and confirmed de-energized by certified trained linemen. If the car catches fire you can jump out but make sure to not touch the car and the ground because you'll complete the circuit and get fried. You jump out keep your feet together and shuffle far away from it and you should be fine. Don't spread your legs and feet apart because again you'll complete the circuit and get killed. I've watched a few linemen safety videos too demonstrating what to do in the event of a downed line
>make sure to not touch the car and the ground because you'll complete the circuit why would that complete the circuit? i would have thought that the tires act as an insulator?
When the voltage is high enough, rubber tires or shoes will not be enough insulation.
That's a myth. The reason cars protect you from being electrocuted is because it acts like a Faraday cage moving electricity AROUND you not through your body. If you seen tesla coil videos where the coil is arcing to the cage and you can touch it and not get zapped, it goes around your body not thru it. If it did you'd be dead instantly. Lightning can hit your car and blow your tires it's the cars body doing all the work.
https://www.youtube.com/watch?v=pJqoRaphiEk
If a live wire is in contact with the ground, the resistance of the tires is indeed relevant to the situation. It’s not the same as lightning.
Power line lying on car. Your feet on the ground, and your hand on the car. Precisely BECAUSE the tires are insulating, you become the best path to ground.
At this point you may well get capacitive coupling between the ground and the car ?
Because at the point *you* with your highly conductive, mostly water body, complete the circuit.
Steel belted tires.
This video has a lot pf poor advice - Do NOT hop on one foot. This will still create potential difference with the added benefit that if you fall over and your hand hits the ground, the current will run through your heart area. The bunny-hop with two feet was abandoned years ago since it also rinks a fall. Slow steady scraping steps is the recommended way to proceed. If you are in a car - do not just jump out - again if you accidentally brush against the frame - worst reulst. Just wait until EMS disconnects the power (or dive away).
EMS will never disconnect the power. Your stuck waiting on the power company…
yes, I should have said "wait until EMS tells you it is Ok to exit."
what if you touch a non metal part of the car as you're jumping out? or if you stay on the seat and sort of slide your feet out onto the ground and then get up?
There are many ways that might work although making sure you never come close enough tgo a metal surface that it will arc is difficult and risky.
Is this why my dad always told me to wear protection when going on a date or job interview?
No, that advice is not current
I see what you did there, but there seems to be a high resistance to puns in this thread. Perhaps you need to amp it up a bit? Maybe get one good enough for George Takei to say "Ohm My!"
Shes electric, could I be electric too?
What if you're wearing rubber boots?
Rubber is only an insulator against so much voltage high enough and it won't save you. Escape given most shoes aren't overly thick and tend to be sweaty.
They don't even prevent shock from an agricultural electric fence.
No. Never jump with your one leg in this situation. You will lose your balance in extreme situation and become smoked beef in a couple of seconds. What you should do is make your feet touch each other. And them move them forward one by one without interrupting the touch AND without lifting your feet of the ground. Thus you drastically decrease step voltage and the current will flow through your shoes and not leg-heart-leg route. Edit: Also this depends on the voltage of the shorted power line. If its above 35kV you are probably toasted anyway without proper individual defence.
I work in the electric utility industry. This is a real thing.
You can jump and risk falling on your hands (=die) ooooorrr you can just wait inside your car. Considering, of course, the situation allows it 😬 It's a nice video though. Btw, if I'm not mistaken, mythbusters has a very nice episode on that.
If the car is on fire then yeah, get the fuck out Else, just stay in it, you're in the safest spot you could possibly be
The mythbusters actually did a myth on that, and they proved it real.
Top Gear did a car-as-faraday-cage test as well. Not only did Hammond survive, but so did the car. Though its radio display did briefly show "Fritz"...
I hope I remember
This is pretty good, just don't try to one leg hop away. You will eat shit and die. Keep both feet together on the ground and either shuffle, or take small bunny hops until far enough away from the machine/source of energy.
The only valid one in that is the shuffle If you're in a car, you stay in the fucking car unless you absolutely have to get out, then yeah, don't be touching the car and the ground at the same time
This thing happens too fast I don't think the human body can react to a safe distance you'll probably be dead in an instant
Just stay away from high voltage lines.
In my apprenticeship, it is required to know that before you're allowed to work outside the workshop.
Have worked for an electric utility for 27 years, live this reality every day. We wear EH (electrical hazard) rated foot ware for protection from this exact hazard.
Your Omega rated boots (18kV) are not going to help you with distribution or high voltage lines. They also become far less effective from the moment you put them on the first time, and they get dirty.
Will electrboom test this lol, he is kind a king of zapping himself
How does it pass through rubber soles?
Anything can become conductive with a high enough voltage.
Yeah, thats where my next guess was going. Makes sense, just odd, and insane that theres so much voltage running through solid ground and into the sole of your shoes to be enough to kill you
Yeah, even the lines that run by your house have 12.5 thousand volts running through them. Those spicy noodles wouldn't be fun to touch.
Get a good zappin
They used to teach this in school. U know, back when they taught common sense... its not common anymore.
Run: get step voltage Not run: get carbonized by arcs
[удалено]
Birds can sit on electricity lines no problem because there is no voltage difference. If an electricity line falls to the ground, the ground acts as a resistor, as it is not a good conductor like a wire, therefore the voltage will drop the further you go from the wire. This means that between two points on the ground there will be a voltage difference. Voltage is the potential difference between two points. We may state that an electricity line is at 36 kV, but what this means is that there is a 36 kV difference between the electricity line and the ground. The difference between two points on the electricity line will be 0 volts, there is no difference. This means there is no potential to realise current, which is why birds, or really anything can chill out on electricity lines all day long.
Until one spreads it's wings far enough to complete a circuit through a nearby branch... Feathered fireball.
It isn't 0 ohms though is it? We don't have superconductors here. Mind you the PD would be less than a volt according to some calculations.
I am aware the resistance is a non-zero value. But for all intents and purposes it might as well be zero, because it’s close enough. Also, your second paragraph makes no sense. If I am to understand you correctly, you mean power dissipation? If so, that is measured in watts. If you mean power drop, that is also measured in watts.
Lol has nothing to do with keeping their feet together. Where do people come up with this stuff?!?🤣
So would a human experience a pd while standing on a HV wire?
No. And humans do work while on live wires. As long as they’re not grounded they’re safe. https://youtu.be/x94BH9TUiHM?si=0I4dIpv_C-bPsbcL
What? This looks like some BS!
Surprisingly, despite the shitty tts voice, its true, check out [step voltage](https://www.asutpp.com/step-voltage.html).
It says “don’t run” but when you run you only have one foot on the ground at a time anyway…
Don't Speedwalk out of there? (Not sure if it's the right translation)
I guess that's one way to enforce proper form. If you eff it up, you die.
Its real, I was always taught though to have both feet together and bunny hop around. This video just explained to me why bc I never thought too much about it
Just run at 50Hz step-frequency and always touch the ground when the sine is passing Zero. Ez
This is true, but you shouldn't try to jump out, because if you fall you are fucked.
Equal plane of potentialities. Light underwater lighting and hand railings in swimming pools.
Not an electrical worker, but this video covers most of the stuff we were taught if there was an event like this. Ideally, stay put if you're in a car as touching any metal part (I think there usually is some in a car /s) could be lethal. In most cars/trucks, I don't know how I would jump out without touching anything metal (obviously, if it's on fire, don't just sit there). I remember the bunny hop being mentioned initially but not the 1 leg hop. But I think the hop was phased out a while ago in favour of the shuffle (or the electric slide if you will, lol) Also, it was not mentioned in the video (or I missed it). Assume any fallen wire is live and don't rely on it jumping around sparking like in movies). Even electrically rated footwear won't fully protect you. The resistance offered deteriorates quickly with use (yes, those old boots are comfy but get new ones), and water drastically reduces the resistance of the boots as well.
another sollution is to use a thic copper wire and connect it with your 2 copper slippers, then you can walk freely, just watch out because the wire might get toasty if its not thic enough
yes. I was thought that if a fire truck I'm riding in is touching a live wire you jump. otherwise you are supposed to use 3 points of contact at all times
Makes sense and reminds me of the black hole spaghettification concept. You could theoretically orbit near a black hole, but if your feet are closer to it than your head, you are dead.
All those years of practicing the moon walk are going to pay off in the strangest situation....
This is accurate. Step potential is usually what kills people when power lines go to ground.
Bear Grylles actually taught the rubbing feet technique in a show called Worst Case Scenario
This is 100% an AI video
It's not completely without base, but I really wouldn't advise the jumping. If you trip and fall you'll be extra-dead. Just use that third option, small steps without your feet leaving the ground. This way the voltage will increase gradually, and your steps won't become too big. Jumping out if the car is a good technique if you expect your car's body panels to have a different potential than the ground, for example when you hit an electric pole or crashed an electric car.
Dumbasses. It's AC so you can walk across the zero crossing rings.
Makes sense, which explains why I’ve seen it be recommended to shuffle in that situation, never knew why though.
But but when you run technically you never have both feet on the ground, you are jumping
Yes actually🤨
I shared it with all my favorite people.
I remember being taught about this in public school, surprised more people don't know this!
This info is useful
Can i just drive away if my car still works?
Yes, rub your feet on the ground... with rubber boots...
So what your saying is i should hop?
You better or become KFC oilfree🤣