Here's What To Do After Finding Hot Connectors On Overhead Power Lines
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- Опубликовано: 1 май 2017
- This video shows a typical scenario using infrared inspection of an overhead transmission line to identify a hot splice and then the proper correction of that hot splice using a ClampStar engineered mechanical shunt.
NOTE: At the 3:41 mark there's a mistake in the narration. He should have said 27 degrees Celsius, not Fahrenheit.
Most of the U.S. power grid was constructed 40-70 years ago. And connectors are the weak link in the system. ClampStar can be used to protect overhead connectors, effectively extending the life of aging overhead assets.
More ClampStar videos:
1) Learn how ClampStar can prevent Wildfires: • A Wildfire Risk & Miti...
2) Swingset Electrocution: • Swingset Electrocution
3) PPL Haverfield ClampStar CSR 1631 Installation: • PPL Haverfield ClampSt...
4) ClampStar Repair Unit (CRU) Transmission Installation: • ClampStar Repair Unit ...
5) ClampStar & Air2 team up on an uprate project to install ClampStar shunts: • ClampStar & Air2 team ...
Visit classicconnectors.com/ For more information. 
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I have read a lot of comments asking how the pilot is able to keep the helicopter so still. Allow me to explain, as I am a seasoned pilot with over 30 years of experience. In situations like this, the combined weight of the lineman's and pilot's testicles helps to stabilize the aircraft.
Hahahha :D
david esktorp good thing I'm not a power line worker because then I'd bring 500 pounds of testicle
That is the best technical explanation I have read yet .. thank your for that insight .. It seems that Periodic weighing of the testicles of both men is probably crucial in order to make any adjustments that may be needed on the Aircraft itself to fine tune the balance. ..
Dude you are hilarious...
Wait...so you're saying the pilot and engineer have elephantiasis of the testicles? Must've been uncomfortable. :S
Idk how i got here but power lines and heights are two of my biggest fears, this guy is a god damn champ.
lmao this is hilarious
In another video, one of these helicopter-riding linemen says, "I've only ever been afraid of three things: electricity... heights... and women. And I'm married, too." :-) So yes, such workers have all the fears that one would expect them to have. But they learn how to over-ride those fears. "A coward dies a thousand times before his death, but the valiant taste of death but once.", to quote Shakespeare's play "Julius Caesar".
Robbie Hatley yes exactly, we have respect for the height but we learnd to life with this !👍🏻
Yeah, sitting here with my hands sweating!!
Being on a building and looking down, isn't the same as being on a helicopter looking down. The perspective to the ground is different. I noticed this when I went skydiving for the first time and you have to step out of the plane and put your foot on the wheel in preparation for the static line jump.
WOW! A Do it yourself High Tension Line Repair video! Just what I've needed! I've been waiiting for a long time for one of these!
You're well on your way, son! :D Here's your conductive suit to go along with it. www.vidaro.com/kv-gard-flight-suit
The video just describes someones job.. It’s entertainment (for a selected group of people)
funniest thing i've seen all day
Do u guys know how much is it to rent a small helicopter for 4 hours at home depot?
GET TO THE CHOPPAAAA
These pilots and linemen always amaze me. Because of these brave fellas you have power to your home. We tend to take it for granted, but there is a lot of effort into keeping the lights on.
That was one of the most informative, clearly narrated, and absolutely fantastic videos I've seen on RUclips. I'm no electrician, but I'm guessing this product sells itself.
NICE COMMERCIAL
ophello I bought one.
Just watching this video, you realize how many different things can go wrong and how fast it can happen. These guys have SKILL!!
What an incredibly talented pilot. A pilot that can keep a helo that steady in those brisk winds is absolutely amazing.
I do not work in this exact industry, but my job requires me to understand transmission lines and with 20 year history as a Telco lineman, this looks like a very solid product and a great solution. Well done video as well.
this is not for the faint of heart and short of temper. Bravo pilot and lineman.
As a former residential pole climber, I found this most impressive.
I’m in the process of being hired to comed as a overhead technician, I am so fuckn nervous, I know they will teach me everything but having no experience going into this field is frightening, any tips?
well done gents. it's these types of guys that do jobs like this that make our way of life possible.
indeed.....God bless everyone 🙏work for make our live better
Not only the pilot but the working guys just unbelievable skills. I hope they make a well diservd living
My cousin did this kind of work, I will always be in complete awe of the skills these guys have.
Pretty cool..bad ass pilot there!
I’ve been looking for this video everywhere, thanks! I now know what to do when I find hot connectors on my overhead powerlines
What could possibly go wrong here? I really hope these guys are WELL PAID for this high risk task. R-E-S-P-E-C-T
Now i know what to do next time i'm in this typical scenario. Thanks RUclips.
these are truly skilled workers !!!!
These guys have one of the most badass jobs. I would love to do this.
Where was the camera ?…
Lot of trust put in the pilot !…
Great job and lot of confidence from the pilot too.
The brave worker is not afraid of heights.
I get a little weazy just watching the video.
Unreal. Well done men. Great video.
Great! Now I know what to do, I am going to try this.
Good to know, thanks. I have forwarded this information to the Norwegian transmission system operator, Statnett.
Great video, and good commentary, and thankfully not overshadowed by lousy music you get on some videos. Subscribed.
These guys deserve every penny they get. Note to electrician -- don't cheat with the pilots wife....
Raptorman0909 they are married to each other , so it can’t happen
Note the helicopter is attached to the line for the duration of the operation. If anything happens to the guy installing the bypass the pilot is also doomed.
pretty sure that connection is a tear away...too much tension and it snaps so as to not destroy the heli
Leonard Milcin, there is no problem to just fly away anytime, also without disconnecting that...pliers. and the worker is always ready, he doesnt tangle up with anything during working, he is literally always ready to just being pulled away of everything
I think its too low for this job
Anyone who is in aviation definitely has mad respect for that pilot.
Myself included. I can’t wait to start flying
Very cool video!
The counter weight on the other side of the chopper is to balance the weight of the BIG PAIR of the line man.
Thankfully with have skilled men like the lineman and the pilot who have the courage to take on a job like that.
How much are they, I really want one (in blue)..... Not sure what for? I don't own a pylon? Great Video...
This looks like a pretty fun job. Fun as in thrilling.
Love the sheering screws
He has to sit outside because his balls wont fit through the helicopter door.
true dat
Seriously
Yes sir I agree... I climb and assemble cell phone towers for a living... and the highest I ever been was on 1131 ft but I don't think I could do this kind of work I don't play with electricity.. I tip my hat to them.. they got nerves of Steel..
4th video in a row ive seen a comment like this
LOL! Indeed!
I’m wondering what the mechanics of the repair. Does this work by giving less resistance due to the added conductivity?
i hope that team gets paid a shitload flying a chopper like that is ungoldy hard and being that close takes balls of steel
350k a year.
I'm in Lincoln NE and a few years back the were doing high power repair. Pretty cool stuff. This is where I could get stupid, they used a five blade Hughes helicopter with tail rotor maybe a 500D ?? That pilot kept that thing pretty steady. Fun to watch. at a distance.
What about the specific scenario of the cable parting while the lineman is clipped on, with both ends suddenly heading away and down. Assume the clip is caught on something like the splice and hangs on. Does the wire between clip and helicopter have a breakaway accessory? A sudden tug would be notagoodthing.
Impressive.... I know the lineman is probably safe with all the gear but still I imagine it takes some stones to do that job and amazing skill of that pilot. Nice work gentlemen!
Nope, that gear will do nothing if the helicopter drifts too close to another phase and causes a line to line fault. Talk to people that have worked with transmission repair for a decade or two and they can probably name a person who died from that either form a bad pilot or a strong gust of wind. Sure they might fall to the ground after the fault but they are dead before they hit.
Wow that's some wicked flying skills ..
That clampstar looks like it works pretty good. Clampstar!!!!!!!!!!!!!!!!!!
What is the voltage differential between the two sides of the hot splice?
Can I order one from the website? I have a high voltage line next to my house and in my thermal scope it's hot, I think I can fix it myself
Unreal. Real hero
Looks like a fun job 😎
This is a really cool product
how did he grab the wire with two hands? Would it run some of the current through his body?
Just wondering what they make an hour/yearly..?
Great work - on we groundlings are afraid of 110 V AC :-)
Where is the diaper storage located?
Amazing pilot. Very hard to hover like that even 10 ft off the ground much less 2 ft from the transmission line.
You could NOT pay me enough to do these jobs. Thank God we have people that have nerves of steel! No pun intended.
That guy has more guts then I have to do something like this.
I didn't see any anti-ox compound applied. Are the clamps pre-loaded? Aluminum joints have a bad habit of oxidizing and becoming resistive.
Orbiting Eyes, that’s an excellent question! All ClampStar units are pre-loaded with a proprietary antioxidant compound known as CC Squared.
You can find any DIY video nowadays on RUclips, it is amazing.
Well that was easy, wasn't it. My wife has been looking for a change of career direction, I think I've now found just the thing.
i hope she has big balls
Can you get an application for my ex wife?
On a daily basis, i probably need about 99% of the time those kind of skills. 😂
But thx for sharing anyway, its really interesting :D
REMEMBER ME, I WAS YOUR 40K subscriber
Amazing 🥺
This is the source of the "wage gap" (note: wage gap doesn't exist, an EARNINGS gap exists)
beautiful
I'm going to try this at home.
Great job! I wonder how they fix a high resistance problem when it is in a line in the middle of the other two.
People commenting in another similar video said the space between the phases is more than you think, and also, the heli's rotor is kept above the height of the wires, and the work platform is underneath the heli.
does the helicopter comes with the clamps?
This Pilot is Top Notch!
That has to be the most dangerous job in the world!😲 well done👍👍.
Meet them both!
Harverfied Aviation which I seen in action at a DZ where the two MD-500 was starting to get the line journeyman to their location
amazing copter skillz
and that sitting out guy gave iron balz
I feel qualified to install these if I got a few more safety courses
How many clamps before the Powerline becomes a Clampline?
Not going to happen. There are never that many splices to begin with, and most don't fail. Only the ones that _do_ fail (develop high resistance and hence high power loss and high temperature which shows up as white on infrared cameras) are clamped. The vast bulk of each line consists of segments of thousands of feet of unbroken conductors with splices between segments.
How do you get that first time under your belt? And I have never seen these jobs advertised.
I learned something today
Woot?! dat pilot godlike skill :O
Thats one nice MD 500.
How often do utilities run inferred inspection on all the conductors they own? Once a year?
Hello Bill Zang, Thanks for the question. Most utilities will conduct infrared inspections on overhead transmission lines once per year or once every other year depending on the age of the conductor. Inspection requirements vary for each utility.
Hold my beer.
Indeed.
I thought that's how accidents start out.............
very interesting
Wouldn't there be a voltage differential across the bad connection? Heat is being generated because of voltage drop across the bad splice. I'm guessing the voltage drop wasn't high enough to warrant any bonding before attaching the splice?
You are correct. According to Southwire's chart for that "Lapwing" ACSR cable is rated to handle 1354 amps max. Since the rest of the wire is cold on the IR camera, it is safe to assume current was much less than that. For example, lets say current was 400 amps and a guess for the heat dissipated in the bad splice was around 200 watts (it was warm, not searing hot), the voltage drop across the bad splice would have been 500 millivolts.
Was the black discoloration on the old splice caused by months/years of heat cycling?
Once the voltage drop across a connection reaches 0.3V (yes, that is 3/10ths of one volt!) the aluminum will exceed 650°C and the splice will melt. Actually, it is unlikely to get that high (0.3V) before the connector let’s go mechanically. If you can’t handle 0.3V, probably ought be in a different profession - and that would not include auto mechanic, as you would have to wear a full set of gloves and sleeves to change a battery!
Looks a bit heavy, I suppose that could limit potential uses, but still very cool nonetheless. That pilot and lineman were both amazing.
What a job that is.
So these devices just provide a low resistance alternative for the current flow?
ClampStars act as an electrical and mechanical shunt to prevent wire-down incidents caused by failing splices and other overhead connectors. If ClampStars are not installed and the splice or connector failed, the line would come down and possibly cause, things like; wildfires, electrocutions and other damage. Google "swingset electrocution" to see a video demonstration of a failed splice. Also checkout this video: ruclips.net/video/u9xe273PFg0/видео.html
@@ClampStars I see. Can't say I've heard of a mechanical shunt before though, but hey, these are some interesting concepts you have presented. Thanks for the explanation.
I hope I never have too see those big lines that close!
That goes double for pilots of light aircraft. I attended a power line safety meeting for pilots presented by our local public utility and they brought a display board with samples of various high-voltage cables. When you see the size of those cables, you realize that a Piper or Cessna flying into one might as well fly into a brick wall.
@@Milosz_Ostrow For size reference, a 4/0 wire is just a bit under 1/2" thick. A 477MCM ACSR cable is about 5/8" across, while a 2000MCM cable is roughly 2 inches across...
So, running into a brick wall is definitely a good analogy here.
Thankyou
nice 7/8 time signature in the outro rythm :-P
Amazing vid. But there's a temperature unit mismatch in the voice commentary: the graph shows temperature values in centigrades, but the commentary says that after installing a ClampStar, the temperature fell to 27°F (-3°C) that seems unrealistically low temperature even in winter conditions.
Reposted from the video description: NOTE: At the 3:41 mark there's a mistake in the narration. He should have said 27 degrees Celsius, not Fahrenheit.
How does that helicopter even get off the ground? I mean, the pilot & lineman must have some HUGE balls! Seems that would be too much for the aircraft to take off!
0:43 Great visibility out of that helicopter. They even made the instrument panel narrow so the pilot can see downwards over his feet.
that's normal for md500
Dream job!!
Is the line energized while it's being worked on?
Yes, that is the main advantage of this repair. It can be performed while the line is still live
Where do I sign up
I'm gonna buy myself a clampstar clamp for Christmas
I love how the dude just clips his *Plugin drill* onto the power line and just goes to town.*
The clip is attached to the helicopter to make the helicopter's charge the same as the line so that the lineman doesn't get electrocuted by a static shock. The drill is plugged in to a power source on board the helicopter.
woun´t the contact resistance rise over time due to corrosion? if so, how much will it rise?
It can but they tend to use anti oxidation compounds on the areas that make contact. Also, they polish the aluminum before applying the shunt so that when it is tightened down it isn't a concern. Once you make a mechanical contact like that it is good to go for decades.
Once the voltage drop across a connection reaches 0.3V (yes, that is 3/10ths of one volt!) the aluminum will exceed 650°C and the splice will melt. Actually, it is unlikely to get that high (0.3V) before the connector let’s go mechanically. If you can’t handle 0.3V, probably ought be in a different profession - and that would not include auto mechanic, as you would have to wear a full set of gloves and sleeves to change a battery!
All involved have balls of steel 😮 😂😂😂
Challenge work and very dangerous 👍👍
3:30 That graph gives another meaning for "hot" power lines.
Do they shut down the line, while repairing, because of the temperature ?
The video show he never needs to touch the connector. The heat might be kind of nice on a cold day.
They never do outages for transmission lines unless they are fixing an outage on a transmission line.
Stopping power on transmission lines can result in literally billions of dollars in losses--they don't do that unless they have to.
No it can't.
I know of transmission lines that get opened every day. But outages are not necessary for this kind of work.
what kind of resistance is involved it looks like at least mega-ohms. 100 deg Celsius is boiling water so 300 deg Celsius is 3 times that or 636 deg F. no wonder the lit up the flir.
it bypasses the splice electrically?
My Car's plug wires have a few abrasions causing shorts; I am going to use Clampstars!
Respect ✊