well i didnt see a flash here but,at my industrial workplace i did see it in person.the guy who goofed up had his hands really messed up.it looked like he was pulling off white latex gloves but it was skin.that was the brightest light i had ever ever ever seen.the guy lived but didnt have a job anymore,he wasnt wearing any of the PPE.none.
It shows the proper operation to energize high voltage switchgear. When that equipment fails it like being next to a mortar shell going off and over 10000 degrees F.
want to play with something dangerous, short the output of a 450 kw, 450khz HARTLEY OSCILLATOR, RUNNING AT A PLATE VOLTAGE OF 35KV, 40 AMPS!...
this power it packs a massive punch but really how much juice can you produce in a simple 60hz wave.... try 450,000 hz, with both the potential to arc through air, and cause RF burns through arc suits. don't forget the possibility of xray radiation as well.
high voltage is childs play, till its produced at RADIO FREQUENCY!
@xboxoxzx You really have no idea what you're talking about. Arc flash is all about energy containment (or risk of it not being contained). Switchboards are rated at a fault level in kilo amps (kA) for a given time or in MVA. This isn't a competition to see who can do something more dangerous. Electricity at power frequencies often kills people and needs to be respected for what it is - a massive stored energy source.
SVP ne lisez pas ou vous serez piégés comme moi. Bon désolé ...En 1945,une jeune fille nommée lata kulu vint en Amérique dans un bateau gris venu d' Afrique. Un homme étrange la tua en gravant le mot "LATUALATUKA" dans son dos. Maintenant si tu as lu ce message elle viendra pendant une pleine lune dans ta maison et volera ton âme à moins que tu ne suives ces instructions : réécris ce message en tant que commentaire dans 3 vidéo Désolé moi aussi je me suis fait piéger
This comment has received too many negative votesshow
ths guy is a pussy... be a man throw the switch without the shit on.... All you idiots on here commenting are retards! u know nothing about electric stfu!
@Zavy20 Considering you couldn't even conjugate 'electric' to 'electricity' properly, it's obvious you don't work in industry. You'll never find a more safety-conscious group of people than MV/HV electrical techs. Had that breaker tripped from an unresolved fault, that tech would have died trying to close that breaker.
Also, learn to use your shift key. Your comment reads like it's from a marginally literate 13 year old.
Wow, a lot of comments by what sounds like drunk and crackhead electricians. Don't want to hear no boo hooing when it finally happens to you. The only thing you'll be hear is the screaming of your own tortured soul. Good luck with that.
I install the HVL's and starter switches for 4160 compressor motors and pull and terminate 5kv and 15kv cable from substation swithes and S & C boxes and into 15kv transformers with 12460 and before these units go online for the customer we test every motor and switch many times and I have never used that suit...but we do have one!
The right way to wear the gear, is fully zipped up!!! And your right Nivicoman if the blast did happen and the door didn't do it's job, he would be toasted from the backside!
Actually the arcflash energey levels are higher at 480V than 4,160, though the shock hazard is significantly higher with 4,160... calculate it and see ine incident energy levels and caloric rating of the flash...
@droyal1288 Is there lower impedance and therefore more available fault current on 480 than at 4160? I've even heard of 208 blowing the lugs right out of a 1200 amp breaker.
Para se fazer a manutenção em subestações, ou conjunto de disjuntores de alta tensão, tem que ter 2 ou 3 pessoas, porque é muito arriscado, mesmo usando todos os equipamentos de proteção individual. Esta seria a melhor forma para realizar este tipo de trabalho.
I've had 480 Volt, 2000 Amp arc flash on me, totally exposed so I definetly understand the potential of arc flash and shock. You just want to act like you know it all and impress people with your vulgar language. Though, that sounds about right for a 19 year old ausy punk.
@BruceJAX actully fuck cunt your the illiterate Fucktard, it's called a high voltage fixed switch used for an incomer it is not designed it make or break load, it simply disconnects
@devosbi yeah I'm a sparky mate, I can safely say I'm more aware than most people here of the risks associated with working with both A.C and D.C power
Fucking dickheads on here calling themselves electricians, get a fucken apprenticeship and learn how electricity really works instead of wikipediaing it. DONT MAKE UP SHIT YOU DEADSHIT!!
@c10h15n68 LOL so could a AAA battery if fired out of a gun at someone's head. Seriously though even that 1.5 volts from that AAA battery could be deadly if somehow applied directly to one's heart causing arrest. Open wounds are known to render normally nonlethal voltages lethal due to better conduction through most tissue.
Actually it's a starter not a breaker. The funny thing about it is High Amperage equipment has more of an arc flash potential then High Voltage. It looks to be about a 25 cal AF suit, which if he was wearing it correctly would probably suffice (would really have to see the calculated values). ie. 480 V, 2000 Amp is MUCH greater potential then 4160, 600 Amp, course depends on a lot of other factors such as the upstream protective device and others. Try working on 243,000 Volt like I have :-)
@BruceJAX try 330 kv mate your such a big man arnt ya dosent matter what voltage your working on electricity will fucking kill your arse no matter what, VOLTAGE is the pressure that ionises the air what make it arc. so yes kiss me where the piss comes out, and another thing HIGH VOLTAGE yards usually have a greater Earth Fault potential and Therefore can supply more current due to the higher voltage. ohms law fucktard
@jacobclark73 Someone has issues. I did say it was a HIGH VOLTAGE starter, so guess your the illiterate fucktard. And where did I say electricity wouldn't kill you? And of course the voltage determines the physical length of the arc. As far as the eart ground potential, I think the size of the transformer feeding this equipmentg would have more to do with it. My comment is that PPE would "probably" suffice, if he wore it right.
@jacobclark73 Also, the concrete floor and hallway sure doesn't look like it's in a switchyard, more like a substation room. And it sure doesn't look like any of the 330 kv starters I've worked on, looks more like a 5 kv or possibly a 15 kv starter. Besides...doesn't the title say "arc flash 4160 volt". I just did an arc flash analysis and calculated one just like that to be CAT 2. How many hundreds of these have you opperated??
Yeah I remember when I had to wire up 6 or 7 power stations in one week. Those crazy arc flashes never bothered me. I used to lick live wires while standing in water with no shoes on just for kicks! Pussies...I would cook a hot dog with a taser gun and eat it back in those days...
@thezentrixter Tasar puts out voltage with minimal current, current cooks things. Try putting your hotdog on a live bus and then put your hand on it to see if that cooks! Either way youll still be a deadshit
about 12 months ago i worked at a zic plant, i used to walk around on an electroplating system that had 26000 amps running through it every day. yea, it made me nervous..lol
I am electrical operator in a utility-scale power plant. To those who say its the volts that kill you- You are wrong. One amp will kill you. Volts, you can have a serious amount of Volts. 4160VAC is common in utility scale operation on the auxiliary equipment. Our generators put out 12kV to a step up transformer that puts out 138,000 volts AC with thousands of Amps. The gear may protect you from the arc-blast burn, but at some levels it is simply to allow an open-casket funeral.
We have always been taught to 'make dead', never denergize equipment and assume it to be safe. From stories from linesman in the industry, you will find LV DC can be much more dangerous, HV shocks will send you flying, lose limbs and cop serious burns from entry and exit wounds but a LV DC shock will make you silent as a mouse, leaving you hooked up for much longer before anyone realises.
A lot of people in here with their wikipedia degree in everything though lol
Volts have nothing to do with shocking you. The shock you feel come from the number of amps in a given circuit. Did you know that with static electricity it takes 50,000 volts to make the hair on your arm stand up? Thing is, there are no amps to back it up so you feel no shock. It takes less than 1 amp to stop your heart. most 115v house outlets are 15 amp circuits.
@UMakeMeROFL Being an electrician i know it takes 50 milli amps (half an amp) to kill you. Have a saying in the trade it's the volts that jolts, the mills that kills. I assume you live in America with 115v sockets (outlet) at 60Hz which is actually safer than the uk of 230v 50 Hz as a defribulator works at 60Hz.
@UMakeMeROFL Its the energy that kills you, not the current. You can happily survive a high current shock, or even not notice if the duration is short.
@aptsys You are wrong in every sense of the word. Any more than 70-100mA taken across the chest a you will be in v-fib. Voltage is the push, the ability to jump air gaps and penetrate inadequate insulation. Amperage or Current is the volume or amount. That is what does the damage. Hence the old hot dog cookers that you could plug into the wall and cook your hotdog with current (Now outlawed).
@Phoenixyzf I'm afraid not. We design defibrillators at work, and constant current drivers do not have reliable results on the heart, hence why we design them to output a set energy (joules) in a specified period of time.
@aptsys So your telling me current is not what does the damage?? You need to check your sources. Voltage means nothing without the current. I have a Van DeGraff generator that produces 400KV of static electricity. I can touch it all day with no risk of injury. I have the background for this, I'm a licensed electrician and a safety instuctor that teaches NFPA 70E (Arc Flash).
@Phoenixyzf Perhaps you should go back to your books.
1 Joule = 1 W.s = 1 I.V.s
I and V are closely linked as you know - the voltage must be high enough to allow an appropriate current to pass through the heart, and the current must be maintained for a sufficient period for the appropriate amount of energy to be delivered to the heart.
Your Van De Graaff generator probably only discharges over a 1ms period, yet with a high voltage and consequently high current during that time.
@Phoenixyzf If you could sufficiently control an impulse from a non current limited 400kV HV source - i.e. deliver 400kV for a similar amount of time it takes for the Van De Graaff generator to discharge you could also "touch it all day with no risk of injury"
You should also remember ohms law! You say "Voltage means nothing without the current" (sic) but also current means nothing without voltage! Just having a high current source available presents no danger if the voltage is low.
@aptsys You’re referring to medical devices and I'm referring to the electrical system we use every day. When is that last time you looked at a piece of electrical equipment in a home, commercial or industrial facility (like in the video) and saw a rating in joules? Ohms law demonstrates the inverse relationship between I and E. When you raise one you lower the other.
@aptsys A car battery is 12v however, it has a rating, on average, of about 900CCA. The battery still poses a danger to life and health but the voltage is so low that there is not enough EMF to easily defeat the body’s natural insulation. ie. skin. The potential for injury is there but less likely to occur.
@aptsys Check out Charles F Dalziel. He was one of the pioneers of studying the effects of current in the body. You are correct in the sense of the AED. I'm not arguing that. Remember the injury triangle: Current, Path and Time.
@aptsys You are wrong in every sense of the word. Any more than 70-100mA taken across the chest a you will be in v-fib. Voltage is the push, the ability to jump air gaps and penetrate inadequate insulation. Amperage or Current is the volume or amount. That is what does the damage. Hence the old hot dog cookers that you could plug into the wall and cook your hotdog with current (Now outlawed).
I don't know if anyone mentioned this but just as an FYI 24 volts can kill you as retarded as it sounds even a lil shock can reach your heart and stop it. Don't ever take electricity lightly.
It is all relative to the size of the feeding transformers. My 13.8 gear at work is actually more safe than the 480. Even though the 13.8 gear has a 5MVA transformer and the 480 has 2.5MVA
reminds me of plants and shitty places ive worked. no good training shitty ppe training. its all good until its all bad. he faces it but then turns around sideways to use both hands to close breaker atleast he side saddled it a bit,but 4160 would it matter?
It does appear to be backwards. We use 40 cal suits on a daily basis where I am at and the zipper is supposed to be in the front. Plastic zipper and velcro over it.
Hopefully the protective relaying is calibrated and checked. If all works as supposed to, he'll never see any flash. we had a (very lucky) individual use a ground device on the wrong side of 1,3800 and just tripped the bus out.
@tercel97 I was told of a maintainance worker who in attempting to ascertain why the building was without power use a Fluke 87 on what he thought was the 480 side of the 13.8/480 pad mount. Kind of didn't go well metering 13.8 with that DMM. He got away with just minor burns somehow.
To the electricians and and utility personnel out there: I'll stick to my job and pay my Edison bill every month so you can keep getting the salaries you earn for dealing with this stuff. 480 at 1000 amps is plenty enough for me to work with.
khm. our company has good equip. but our EM wear only rub-gloves, anti-flammable suit (lol, just ordinary worksuit) and use HV rod for operations on 6-10-35-110-150kV apparats. i hate this.
All that for racking in a GE Limit Amp? I have racked in 100s of them, with the door closed level PPE 4? Looks more level 2 and the 4160 usaully has a lower short circuit delivery than 480 with a 2500 to 4000 KVA X-former.
People moaning about him turning away, if within the second he shuts it off theres no arc, then nothing is going to happen. It's instant, and its really hot and its like being punched in the chest really hard. The worst part about Arc flashing is the shit it blows up, shrapnel coming at ya very quickly.
Why isn't his suit fully zipped up? Especially since he turns his back to the breaker and if the son of a bitch does blow up the blast will go right through the opening and blast him.
@heresteven: The right way to wear safety gear is fastened properly, obviously. This is compacency which can lead to injury only slighty less severe than not wearing such gear. Like the welder who holds his eye gear on his head by hand for a "quick touch up" and gets a jolt to his retima when it slips one day.
@Nivicoman It isn't really critical that the back isn't closed - if you get hit by an arc fault blast, it usually comes at you in one direction, not all directions. So I would assume he planned on facing the possible arc fault from the front. The problem here is that this PPE is designed to be removed fast, because after an arc blast, the PPE can get very hot, or even burst into flames, because it absorbed the arc energy. You need to remove it quickly! Could he do it here? I think not!
@Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
@metermatch Yes, if that breaker closed into a solid fault I'm sure it wouldn't just trip but explode itself in the process. A solid fault would probably cause way in excess of it's interrupting rating and BLAM! Then again the place where this was taken sounds like they go through the checklists and verifying everything before giving the all clear to close the breaker not just ALRIGHT, LET 'ER RIP!
@Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
@Nivicoman@Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
@Nivicoman He doesn't turn his back to the breaker. He's beside the breaker he's switching, not in front of it. Normally you use the "left arm rule" to do this, but those switches are hard to pull facing the gear, so he turns his back to pull up with his right arm.
Having said that.. where's the fricken arc flash?? boring video.
@nilocke Looking closer I can see that's the case. Thanks for clearing that up.
Even the 1000 amp 480 volt breaker that supplies my work station is very stiff. The fact that it's handle is pretty short doesn't help in operating it each morning and afternoon.
@Nivicoman - hell yeah.. 600 Volts is enough to break through the resistance of human skin (dry skin with no perspiration) once that skin barrier is broken your insides conduct massive current
Worker turns back to switch but suit isn't fully closed.
Long coat. Old Style. Is it ASTM F1506 rated to the hazard calculated? Probably not.
Are the pants to the hazard and rated? Who knows. It is a good example of doing things "mostly right" which can work but wouldn't use for training. Note the t-shirt with logo so it is not arc rated and exposed fully on back.
and 2 minutes later, arc happened!!
Mohim8k2 3 days ago
I liked the part with the arc flash
teknokracy 3 days ago
well i didnt see a flash here but,at my industrial workplace i did see it in person.the guy who goofed up had his hands really messed up.it looked like he was pulling off white latex gloves but it was skin.that was the brightest light i had ever ever ever seen.the guy lived but didnt have a job anymore,he wasnt wearing any of the PPE.none.
yaryar1976 6 days ago
Vader called; he want his lightsaber back.
thecockcheese 1 week ago
you owe me 1 arc flash now!
cryoberg 1 week ago
NO FLASH :( ... well luckily for them...
OrgyComplexFan 1 week ago
It shows the proper operation to energize high voltage switchgear. When that equipment fails it like being next to a mortar shell going off and over 10000 degrees F.
Phrankenstein88 1 week ago
Yeah what are these retards arguing about? Video sucked, lets move on.
wolf1010 2 weeks ago
FLAG VIDEO for misleading title.
SeberHusky 2 weeks ago 7
@SeberHusky Already did this before seeing your comment haha.
TheDarkFalcon 1 week ago
want to play with something dangerous, short the output of a 450 kw, 450khz HARTLEY OSCILLATOR, RUNNING AT A PLATE VOLTAGE OF 35KV, 40 AMPS!...
this power it packs a massive punch but really how much juice can you produce in a simple 60hz wave.... try 450,000 hz, with both the potential to arc through air, and cause RF burns through arc suits. don't forget the possibility of xray radiation as well.
high voltage is childs play, till its produced at RADIO FREQUENCY!
xboxoxzx 2 months ago
@xboxoxzx Moron.
rbarraud 2 months ago
@rbarraud... gupta gupta....
xboxoxzx 2 months ago
@xboxoxzx You really have no idea what you're talking about. Arc flash is all about energy containment (or risk of it not being contained). Switchboards are rated at a fault level in kilo amps (kA) for a given time or in MVA. This isn't a competition to see who can do something more dangerous. Electricity at power frequencies often kills people and needs to be respected for what it is - a massive stored energy source.
eddiej1970 2 months ago 2
This has been flagged as spam show
SVP ne lisez pas ou vous serez piégés comme moi. Bon désolé ...En 1945,une jeune fille nommée lata kulu vint en Amérique dans un bateau gris venu d' Afrique. Un homme étrange la tua en gravant le mot "LATUALATUKA" dans son dos. Maintenant si tu as lu ce message elle viendra pendant une pleine lune dans ta maison et volera ton âme à moins que tu ne suives ces instructions : réécris ce message en tant que commentaire dans 3 vidéo Désolé moi aussi je me suis fait piéger
I'm sorry
mtristepin 3 months ago
This comment has received too many negative votes show
ths guy is a pussy... be a man throw the switch without the shit on.... All you idiots on here commenting are retards! u know nothing about electric stfu!
Zavy20 3 months ago
@Zavy20 Some people prefer not to die in a ball of fire.
mcavic 3 months ago 3
@Zavy20 Considering you couldn't even conjugate 'electric' to 'electricity' properly, it's obvious you don't work in industry. You'll never find a more safety-conscious group of people than MV/HV electrical techs. Had that breaker tripped from an unresolved fault, that tech would have died trying to close that breaker.
Also, learn to use your shift key. Your comment reads like it's from a marginally literate 13 year old.
Lusankya 2 months ago
You need to crowbar the line to make this more interesting.
nakayle 3 months ago
Wow, a lot of comments by what sounds like drunk and crackhead electricians. Don't want to hear no boo hooing when it finally happens to you. The only thing you'll be hear is the screaming of your own tortured soul. Good luck with that.
sirkredab 3 months ago 2
should be standing on a high volt mat.
bossou5555 3 months ago
it's all? i am waiting for a fire and nothing
venca381 4 months ago
Can't have cameras in the plant.
downthecrapper 4 months ago
You might as well wear nothing.
Tzimnewman3 4 months ago
no arc....no flash....w...t...f.........
mharrop396 4 months ago
Where's the arc flash? The video says arc flash so I was expecting to see an arc flash!
BankaiIchigo12345 5 months ago 67
@BankaiIchigo12345 Looks like the Arc Flash tripped the switch that's why the Brave dude went in there to reset the switch. Respect is due.
scrumdown2007 3 months ago 2
@scrumdown2007 Why so serious son =D
kylestrangerful 3 months ago
@BankaiIchigo12345 He's wearing it.
DarthBismarck 3 months ago
@BankaiIchigo12345 We was robbed.
dougspair 1 day ago
I install the HVL's and starter switches for 4160 compressor motors and pull and terminate 5kv and 15kv cable from substation swithes and S & C boxes and into 15kv transformers with 12460 and before these units go online for the customer we test every motor and switch many times and I have never used that suit...but we do have one!
cdeleone5 5 months ago
that suit isnt needed ¬.¬ id do it without gloves, ts insolated plastic :L
nuttyboffin 6 months ago
try 12470 thats when the fun really begins
punkrockford 6 months ago
Why don't you get your control room to switch breakers? or use the protection and control panels? Don't they have SCADA or remote access in that sub?
geddez912 7 months ago
@geddez912 SCADA is the way forward, we use it in a hospital to restore the power after an outage. we can get 5MVA available in 18 seconds
bobbj77 5 months ago
The right way to wear the gear, is fully zipped up!!! And your right Nivicoman if the blast did happen and the door didn't do it's job, he would be toasted from the backside!
EwaWireman 7 months ago
The arc flash was me clicking the dislike button
MoreLikeCappuccino 7 months ago 2
@MoreLikeCappuccino LOL
bobbj77 6 months ago
damn..... this video is full of nerdy comments XD
kylestrangerful 7 months ago 22
@kylestrangerful Dangerous Job Nerdy is good. Respect to the man for going in there. learn Electrics Physics to have an Appreciation.
scrumdown2007 3 months ago
Comment removed
kylestrangerful 3 months ago
It all depends on your load capacity. Besides, Electricity is so unpredictable, Its basically all Theory.
NCTClion1684 7 months ago
Actually the arcflash energey levels are higher at 480V than 4,160, though the shock hazard is significantly higher with 4,160... calculate it and see ine incident energy levels and caloric rating of the flash...
droyal1288 7 months ago
@droyal1288 Is there lower impedance and therefore more available fault current on 480 than at 4160? I've even heard of 208 blowing the lugs right out of a 1200 amp breaker.
Nivicoman 6 months ago
Para se fazer a manutenção em subestações, ou conjunto de disjuntores de alta tensão, tem que ter 2 ou 3 pessoas, porque é muito arriscado, mesmo usando todos os equipamentos de proteção individual. Esta seria a melhor forma para realizar este tipo de trabalho.
macedoadonias1 7 months ago
its 4160,,, if it blows your screwed....
NCTClion1684 7 months ago
Whew! That was close!
virginiaorganbuilder 7 months ago
I've had 480 Volt, 2000 Amp arc flash on me, totally exposed so I definetly understand the potential of arc flash and shock. You just want to act like you know it all and impress people with your vulgar language. Though, that sounds about right for a 19 year old ausy punk.
BruceJAX 8 months ago 2
@aptsys nope but there's plenty of electrical trade principal books that have the evidence to prove that your a total deadshit.
jacobclark73 8 months ago
@BruceJAX actully fuck cunt your the illiterate Fucktard, it's called a high voltage fixed switch used for an incomer it is not designed it make or break load, it simply disconnects
jacobclark73 8 months ago
@devosbi yeah I'm a sparky mate, I can safely say I'm more aware than most people here of the risks associated with working with both A.C and D.C power
jacobclark73 8 months ago
Fucking dickheads on here calling themselves electricians, get a fucken apprenticeship and learn how electricity really works instead of wikipediaing it. DONT MAKE UP SHIT YOU DEADSHIT!!
jacobclark73 8 months ago
A 12V Car battery could be absolute deadly. You only need to throw the heavy battery of someone's head :-D
c10h15n68 8 months ago
@c10h15n68 LOL so could a AAA battery if fired out of a gun at someone's head. Seriously though even that 1.5 volts from that AAA battery could be deadly if somehow applied directly to one's heart causing arrest. Open wounds are known to render normally nonlethal voltages lethal due to better conduction through most tissue.
Nivicoman 7 months ago
Actually it's a starter not a breaker. The funny thing about it is High Amperage equipment has more of an arc flash potential then High Voltage. It looks to be about a 25 cal AF suit, which if he was wearing it correctly would probably suffice (would really have to see the calculated values). ie. 480 V, 2000 Amp is MUCH greater potential then 4160, 600 Amp, course depends on a lot of other factors such as the upstream protective device and others. Try working on 243,000 Volt like I have :-)
BruceJAX 8 months ago
@BruceJAX try 330 kv mate your such a big man arnt ya dosent matter what voltage your working on electricity will fucking kill your arse no matter what, VOLTAGE is the pressure that ionises the air what make it arc. so yes kiss me where the piss comes out, and another thing HIGH VOLTAGE yards usually have a greater Earth Fault potential and Therefore can supply more current due to the higher voltage. ohms law fucktard
jacobclark73 8 months ago
@jacobclark73 Someone has issues. I did say it was a HIGH VOLTAGE starter, so guess your the illiterate fucktard. And where did I say electricity wouldn't kill you? And of course the voltage determines the physical length of the arc. As far as the eart ground potential, I think the size of the transformer feeding this equipmentg would have more to do with it. My comment is that PPE would "probably" suffice, if he wore it right.
BruceJAX 8 months ago
@jacobclark73 Also, the concrete floor and hallway sure doesn't look like it's in a switchyard, more like a substation room. And it sure doesn't look like any of the 330 kv starters I've worked on, looks more like a 5 kv or possibly a 15 kv starter. Besides...doesn't the title say "arc flash 4160 volt". I just did an arc flash analysis and calculated one just like that to be CAT 2. How many hundreds of these have you opperated??
BruceJAX 8 months ago
Yeah I remember when I had to wire up 6 or 7 power stations in one week. Those crazy arc flashes never bothered me. I used to lick live wires while standing in water with no shoes on just for kicks! Pussies...I would cook a hot dog with a taser gun and eat it back in those days...
thezentrixter 8 months ago
@thezentrixter 6 or 7 power stations in one week, pfft. sounds like you probs couldnt even wire one GPO in a year.
jacobclark73 8 months ago
@thezentrixter Tasar puts out voltage with minimal current, current cooks things. Try putting your hotdog on a live bus and then put your hand on it to see if that cooks! Either way youll still be a deadshit
jacobclark73 8 months ago
wank
506jimbob 8 months ago
good
TYMENIOUS 9 months ago
the voltage is not what you should worry about , its the amperage !
zachtac 9 months ago
push the red button.
hellzone100 9 months ago 2
about 12 months ago i worked at a zic plant, i used to walk around on an electroplating system that had 26000 amps running through it every day. yea, it made me nervous..lol
123perrin 9 months ago
I am electrical operator in a utility-scale power plant. To those who say its the volts that kill you- You are wrong. One amp will kill you. Volts, you can have a serious amount of Volts. 4160VAC is common in utility scale operation on the auxiliary equipment. Our generators put out 12kV to a step up transformer that puts out 138,000 volts AC with thousands of Amps. The gear may protect you from the arc-blast burn, but at some levels it is simply to allow an open-casket funeral.
bhdw13 9 months ago
Forget electrical shock, the blast and intense heat from the arc is what will really fuck you up
devosbi 9 months ago
@devosbi Their both going to fuck you up you deadshit, thats why you wear your arc flash PPE and "Test Before you Touch" always!
jacobclark73 8 months ago
@jacobclark73
We have always been taught to 'make dead', never denergize equipment and assume it to be safe. From stories from linesman in the industry, you will find LV DC can be much more dangerous, HV shocks will send you flying, lose limbs and cop serious burns from entry and exit wounds but a LV DC shock will make you silent as a mouse, leaving you hooked up for much longer before anyone realises.
A lot of people in here with their wikipedia degree in everything though lol
devosbi 8 months ago
We joke the suit won't save your life, it'll just ensure there's a complete body for your funeral.
CCWSig 9 months ago
@CCWSig lol exactly
Fourteen88SoCal 9 months ago
The plant I work at has 69,000 incoming volts, they use breakers that are filled with an inert gas to prevent arcing phase to phase.
UMakeMeROFL 9 months ago
Volts have nothing to do with shocking you. The shock you feel come from the number of amps in a given circuit. Did you know that with static electricity it takes 50,000 volts to make the hair on your arm stand up? Thing is, there are no amps to back it up so you feel no shock. It takes less than 1 amp to stop your heart. most 115v house outlets are 15 amp circuits.
UMakeMeROFL 9 months ago
@UMakeMeROFL Being an electrician i know it takes 50 milli amps (half an amp) to kill you. Have a saying in the trade it's the volts that jolts, the mills that kills. I assume you live in America with 115v sockets (outlet) at 60Hz which is actually safer than the uk of 230v 50 Hz as a defribulator works at 60Hz.
ntfclad1985 9 months ago
@ntfclad1985 50 milliamps is 1/20 of an amp. 500 milliamps is half an amp.
AltRage 9 months ago
@UMakeMeROFL Its the energy that kills you, not the current. You can happily survive a high current shock, or even not notice if the duration is short.
aptsys 9 months ago
@aptsys You are wrong in every sense of the word. Any more than 70-100mA taken across the chest a you will be in v-fib. Voltage is the push, the ability to jump air gaps and penetrate inadequate insulation. Amperage or Current is the volume or amount. That is what does the damage. Hence the old hot dog cookers that you could plug into the wall and cook your hotdog with current (Now outlawed).
Phoenixyzf 8 months ago
@Phoenixyzf I'm afraid not. We design defibrillators at work, and constant current drivers do not have reliable results on the heart, hence why we design them to output a set energy (joules) in a specified period of time.
aptsys 8 months ago
@aptsys So your telling me current is not what does the damage?? You need to check your sources. Voltage means nothing without the current. I have a Van DeGraff generator that produces 400KV of static electricity. I can touch it all day with no risk of injury. I have the background for this, I'm a licensed electrician and a safety instuctor that teaches NFPA 70E (Arc Flash).
Phoenixyzf 8 months ago
@Phoenixyzf Perhaps you should go back to your books.
1 Joule = 1 W.s = 1 I.V.s
I and V are closely linked as you know - the voltage must be high enough to allow an appropriate current to pass through the heart, and the current must be maintained for a sufficient period for the appropriate amount of energy to be delivered to the heart.
Your Van De Graaff generator probably only discharges over a 1ms period, yet with a high voltage and consequently high current during that time.
aptsys 8 months ago
@Phoenixyzf If you could sufficiently control an impulse from a non current limited 400kV HV source - i.e. deliver 400kV for a similar amount of time it takes for the Van De Graaff generator to discharge you could also "touch it all day with no risk of injury"
You should also remember ohms law! You say "Voltage means nothing without the current" (sic) but also current means nothing without voltage! Just having a high current source available presents no danger if the voltage is low.
aptsys 8 months ago
@aptsys You’re referring to medical devices and I'm referring to the electrical system we use every day. When is that last time you looked at a piece of electrical equipment in a home, commercial or industrial facility (like in the video) and saw a rating in joules? Ohms law demonstrates the inverse relationship between I and E. When you raise one you lower the other.
Phoenixyzf 8 months ago
Comment removed
Phoenixyzf 8 months ago
@aptsys A car battery is 12v however, it has a rating, on average, of about 900CCA. The battery still poses a danger to life and health but the voltage is so low that there is not enough EMF to easily defeat the body’s natural insulation. ie. skin. The potential for injury is there but less likely to occur.
Phoenixyzf 8 months ago
@aptsys Check out Charles F Dalziel. He was one of the pioneers of studying the effects of current in the body. You are correct in the sense of the AED. I'm not arguing that. Remember the injury triangle: Current, Path and Time.
Phoenixyzf 8 months ago
@Phoenixyzf :)
aptsys 8 months ago
@aptsys Depends if your in the vulnerable period or not, read some fucking books.
jacobclark73 8 months ago
Comment removed
aptsys 8 months ago
Comment removed
aptsys 8 months ago
@jacobclark73 Any need for foul language?
aptsys 8 months ago
This has been flagged as spam show
@aptsys You are wrong in every sense of the word. Any more than 70-100mA taken across the chest a you will be in v-fib. Voltage is the push, the ability to jump air gaps and penetrate inadequate insulation. Amperage or Current is the volume or amount. That is what does the damage. Hence the old hot dog cookers that you could plug into the wall and cook your hotdog with current (Now outlawed).
Phoenixyzf 8 months ago
why the hell do you americans have so many voltages, its crazy. and BLACK actives WTF....
oblanob 10 months ago
@oblanob hey, at least we use a different set of colors for AC than we do for DC. Not blue and brown for everything. Really though, just be safe!
krauler 9 months ago
I don't know if anyone mentioned this but just as an FYI 24 volts can kill you as retarded as it sounds even a lil shock can reach your heart and stop it. Don't ever take electricity lightly.
jomama4200 10 months ago
@jomama4200 Another person who knows what their talking about, top stuff mate.
jacobclark73 8 months ago
I work on back up generators and i deal with 480 most of the time. 480 gets more people killed then any other voltage.
punkrockford 10 months ago
@punkrockford Your working with the wrong voltage mate, try 330 Kv. That will make you piss blood out of your arse.
jacobclark73 8 months ago
480 is actually more dangerous.
It is all relative to the size of the feeding transformers. My 13.8 gear at work is actually more safe than the 480. Even though the 13.8 gear has a 5MVA transformer and the 480 has 2.5MVA
barnetod 10 months ago
reminds me of plants and shitty places ive worked. no good training shitty ppe training. its all good until its all bad. he faces it but then turns around sideways to use both hands to close breaker atleast he side saddled it a bit,but 4160 would it matter?
doberfag 10 months ago
It does appear to be backwards. We use 40 cal suits on a daily basis where I am at and the zipper is supposed to be in the front. Plastic zipper and velcro over it.
Hopefully the protective relaying is calibrated and checked. If all works as supposed to, he'll never see any flash. we had a (very lucky) individual use a ground device on the wrong side of 1,3800 and just tripped the bus out.
tercel97 10 months ago
@tercel97 I was told of a maintainance worker who in attempting to ascertain why the building was without power use a Fluke 87 on what he thought was the 480 side of the 13.8/480 pad mount. Kind of didn't go well metering 13.8 with that DMM. He got away with just minor burns somehow.
Nivicoman 10 months ago
What a breaker, 4160 at what amperage? My 480 1000 amp breaker is pretty loud on closing and opening.
Nivicoman 11 months ago
To the electricians and and utility personnel out there: I'll stick to my job and pay my Edison bill every month so you can keep getting the salaries you earn for dealing with this stuff. 480 at 1000 amps is plenty enough for me to work with.
Nivicoman 11 months ago
khm. our company has good equip. but our EM wear only rub-gloves, anti-flammable suit (lol, just ordinary worksuit) and use HV rod for operations on 6-10-35-110-150kV apparats. i hate this.
Kanycmka 11 months ago
I came here looking for 4160-volt arc flash but I don't see any?
r0ckt3hc4sb4h 11 months ago 2
All that for racking in a GE Limit Amp? I have racked in 100s of them, with the door closed level PPE 4? Looks more level 2 and the 4160 usaully has a lower short circuit delivery than 480 with a 2500 to 4000 KVA X-former.
picksboy 1 year ago
People moaning about him turning away, if within the second he shuts it off theres no arc, then nothing is going to happen. It's instant, and its really hot and its like being punched in the chest really hard. The worst part about Arc flashing is the shit it blows up, shrapnel coming at ya very quickly.
jackdaknife 1 year ago
Why isn't his suit fully zipped up? Especially since he turns his back to the breaker and if the son of a bitch does blow up the blast will go right through the opening and blast him.
Nivicoman 1 year ago 19
@Nivicoman i don't know. what is the right way to wear it?
heresteven 1 year ago 3
@heresteven I imagine it needs to be fully zipped up in back.
Nivicoman 1 year ago
@heresteven: The right way to wear safety gear is fastened properly, obviously. This is compacency which can lead to injury only slighty less severe than not wearing such gear. Like the welder who holds his eye gear on his head by hand for a "quick touch up" and gets a jolt to his retima when it slips one day.
RyuDarragh 1 year ago
@heresteven Breaker has already been racked in and closed, he did nothing.
jacobclark73 8 months ago
@heresteven If you don't know how to wear the gear then maybe your too stupid to flip a light switch.
cheeseshoes 6 months ago
@Nivicoman I believe you are correct. I think is't un zipped and looks like there might be velcro un fastened.
TheDirtRoadNinja 1 year ago
@Nivicoman It isn't really critical that the back isn't closed - if you get hit by an arc fault blast, it usually comes at you in one direction, not all directions. So I would assume he planned on facing the possible arc fault from the front. The problem here is that this PPE is designed to be removed fast, because after an arc blast, the PPE can get very hot, or even burst into flames, because it absorbed the arc energy. You need to remove it quickly! Could he do it here? I think not!
metermatch 11 months ago
@Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
metermatch 11 months ago
@metermatch Yes, if that breaker closed into a solid fault I'm sure it wouldn't just trip but explode itself in the process. A solid fault would probably cause way in excess of it's interrupting rating and BLAM! Then again the place where this was taken sounds like they go through the checklists and verifying everything before giving the all clear to close the breaker not just ALRIGHT, LET 'ER RIP!
Nivicoman 11 months ago
This has been flagged as spam show
@Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
metermatch 11 months ago
@Nivicoman @Nivicoman I would also say that in this video, this breaker shoud be operated remotely if possible. If no remote controls, and no way of using a "chicken cord" to get back, you could always stand to the side and close the breaker by using a hot stick from a distance. If that breaker closed into a solid fault, you may have a very bad day!
metermatch 11 months ago
@Nivicoman He doesn't turn his back to the breaker. He's beside the breaker he's switching, not in front of it. Normally you use the "left arm rule" to do this, but those switches are hard to pull facing the gear, so he turns his back to pull up with his right arm.
Having said that.. where's the fricken arc flash?? boring video.
nilocke 8 months ago
@nilocke Looking closer I can see that's the case. Thanks for clearing that up.
Even the 1000 amp 480 volt breaker that supplies my work station is very stiff. The fact that it's handle is pretty short doesn't help in operating it each morning and afternoon.
Nivicoman 7 months ago
4160 volts. Gad I get nervous with 480.
Nivicoman 1 year ago 19
@Nivicoman - hell yeah.. 600 Volts is enough to break through the resistance of human skin (dry skin with no perspiration) once that skin barrier is broken your insides conduct massive current
killershiller1 7 months ago
@Nivicoman Im cacking it with 11kv
bobbj77 6 months ago
Worker turns back to switch but suit isn't fully closed.
Long coat. Old Style. Is it ASTM F1506 rated to the hazard calculated? Probably not.
Are the pants to the hazard and rated? Who knows. It is a good example of doing things "mostly right" which can work but wouldn't use for training. Note the t-shirt with logo so it is not arc rated and exposed fully on back.
nfpa70e1 1 year ago