Only line men can open the mmmmm doors

@@hughsgarbagetrucks Some idiots will force their way in.

You should maybe pin this comment atleast for the safety info in the first paragraph.

Thanks for the reminder Doug! I had intended to do that when initially posted 👊👊

@@Bobsdecline it's Dev actually not Doug. No problem, glad I could help

Interesting because as a former electrician, they hate yall. Desk jockeys that know what they were taught in school but don't know crap about the real world. Just in case you ever wondered

@@Splizacular The only reason this stuff exists in the real world (and you have a career) is because of "desk jockeys" like him. He's showing you respect so how about you do the same instead of being an insecure asshole.

@@Splizacular we dont hate them just think some of them are ghey, so i rip on my best friend for being an EE and he calls me a hammer swinging knuckle dragger, its great

@@Splizacular I worked in commercial construction as an electrician and we didn't hate them. But we cussed'em a lot.

I remember walking past the padmount in my parents back yard every day to hop on the school bus. I also mowed the grass around it. When there was service, I saw it opened. One end was the 10kV side with removable high voltage fuses that could be used to isolate the next transformer east/west/south, the other end of the box was the 400V side powering the neighborhood with much smaller isolation distances and heavy gauge cables to the various roads. It is on my parents lot because the house was electrically heated, thus being on a contract which allowed the power company to do that without leasing or buying the 100+ ft² of land for pad and access. In recent years, it was replaced with a new model that I never saw inside, probably because it was over 30 years old. I did however see some of the underground cables which were similar gauge on both sides, probably to allow energy passing through on the high side. Despite all those observations, I never saw them use side access for cover operating with hot sticks. Until seeing the fuse clip in this video, I always associated hot sticks with work on the 132kV and higher long distance overhead lines.

I know a guy who is banned from our property. He had a 3 phase 120/208 wye padmount failure job so just had to do an in and out. Replace the padmount. We’ll he did but he never read the name plate on the new unit. When the apprentice close in first cut out he heard popping and buzzing noises coming from the building. So he stopped. And the foreman said shut them all in it’s getting late. Long story short the installed a 277/480 padmount and sent 277/480 into a building that only needed 120/208. I’m sure that was a big bill for the company. People are idiots. Read your name plates on existing and new pots, take rotation of an existing rotation is known or find a piece of equipment that can be checked before fully sending to entire building. On a padmount I’ll leave secondary leads off then energize the unit check my rotation and voltages on the ferrils. De energize and make my connections then send it. Same on an overhead pot. Never assume that someone in the factory or the shop did their job right. As a lineman I am the last stop before sending the power into the building. So it’s up to me to verify and be certain that I am sending proper voltage and rotation into a customer. That’s why we get paid the big bucks. Any idiot can plug wires into bushings, it’s know why and how to do it properly and assuring no damages to the customers property and me and my men go home safe. Bottom fucking line

@@linehandibew6205 Why do you misspell the letter Y that visually describes the wiring of a star configuration transformer?

@@johndododoe1411 because there called wye transformers or a wye delta… do some research, everything will come up as “wye”

@@johndododoe1411 because that’s how it’s actually written out lol. Guess you know nothing about transformer theory? Search transformer connections. Wye/wye wye/delta. It’s actually the proper terminology. Get educated on the terminology before you make criticisms on something you don’t know about bud

"It took four calls before someone understood what we were saying." That right there is a serious issue. What if that was a downed wire on a car? Or someone being shocked by a downed line? Or that padmount smoking or arcing? Too many power companies fail miserably in training thier customer service operators in basic terminology on the very service the company provides. This not only wastes manhours but can be an issue that causes loss of lives or property. You might want to call FPL again, speak to a customer service manager, and refer them to this video and comment thread. It could end up saving someones life or property.

heh, I remember walking somewhere in the city and seeing water come up... I walked over and saw a little cap from city heating. Saw a cop coming by and told that cop that a city heating pipe was leaking there. 2 days later I saw there a whole dig site to solve it. ( such leaking can cause sinkholes, large issues etc)

@@DataStorm1 It's an extremely common problem with almost every customer service department that has gone woke and feels that a person's skin color/whatever mental disorder, rather than their funtionality, is most important in hiring them. I once called a place only to get run around by such a dimwit that she finally said to call the 800 number online and ask them my questions. I said, "I did". She asked what they said and I replied, "You are who picked up the phone and this is that conversation right now.".

@@tcmtech7515 lol, ouch.

The EPA was called out because some of the older transformers contained oil that contained PCB's, which have now been banned because it was found to cause cancer.

We used to have those, they definitely aren't ideal. As far as I know, all of them have been replaced in our province. I still see them sometimes on private owned systems. If my memory serves me correctly, we call them transclosures

City of Fort Collins Colorado still has lots of those on their system, really the only thing that needs to be changed is the high side bushing to accept an underground elbow. I know they had a major problem with them burning up in the summer time because they are intended to be hung off a pole and get air cooling, doesn't work as well inside a box or in a vault.

Live front

@@motarted1735 you can actually take a termination for a riser to the HV bushings. So there's no real need to modify the Bushings.

I think that logo was owned by NSP, now part of Xcel energy

In Ontario we have Zap! the safety bird. He is not used anymore except on the warning labels for these green boxes. His depiction is so crude and he is so long forgotten that often people have no idea what he is supposed to be. I encourage you to look up pictures of him because words can't describe how poorly drawn he is.

@@michaelc.3812 Not sure if Ready Kilowatt had copyright or not, but it was used where I grew in metro New York, and by Philadelphia Electric Company when I started with them in 80's.

Starting in the 1980s they had Louie the Lightning bug as a Public Service Announcement in the United States and Canada aimed at children animated by Bob Kurz and voiced by Jack Sheldon. Ready Kilowatt was just a local one to a specific company, where Louie was nationwide in both USA and Canada.

en.wikipedia.org/wiki/Reddy_Kilowatt

Those are real men doing that work.

most hazardous job in the nation. we lost a brother in my local a few months ago, and one got blown up underground. this happens in our trade. even with 3 layers of fr clothing and arc shield, guy down in the vault still required cadaver burn grafts. ive had guys with engineering degrees get sick of the office and try to hack it in our field that just couldn't make it. it often requires a different type of spatial intelligence that simply cannot be taught

My sister in law is an electrical engineer working on transmission systems. My natural curiosity leads me to ask her a bunch of questions that she doesn't know the answer to. It's cool seeing how much respect she has for the lineman in her company.

How subtle lol. Just had to say they may not have a PhD.... condescending m0r0n.

Degree is meaningless compared to hands on experience these guys have, I guarantee you they have more knowledge than 90% of all electrical engineer PHD or Bachelors holders.

Mine was a lineman too. In Kansas. Wichita, specifically. He drove the main road.

I've seen a bunch of firefighter or fire buff videos from places like NY, and seeing them responding to wires arcing underground or through manholes is crazy! The sights and sounds are insane!

Jacksonville represent! The workers for JEA are top notch!

@@JHolderman0 I can agree. I own a small business that does contract work for Power companies all over the south east. JEA is impressive in every aspect. The culture of JEA employees is the same all over north FL. Somehow they have achieved a high level of professionalism and keep a welcoming atmosphere.

It was asinine that they would purposely short out their equipment like that. That demonstration probably cost them hundreds of thousands of dollars! If they really need to demonstrate that, do it once, record it onto video and use the video to train new employees.

@@mharris5047 they probably weren't shorting it out, but turning it off. The arcs will dance for a while as the air switch operates. Lots of cool vids on it.

Fun fact, Africans in Africa steal the oil and cook with it

whât yôuř frênd wãs rêĕchinğ fõr

@@MeaHeaR Maybe to open the door from inside? Like on a car door? Maybe?

@@uploadJ yes true 👍 I never thought of that thanxx

@@MeaHeaR The afterlife apparently

@Version 33 Typical Internet fake bullshit.

that's why it's called a widowmaker

Our live fronts all have barriers, as well as a barrier between the the cable and the doors

This one on the video is a CSA unit (canadian standard), no barriers between compartments. Padmount transformers designs in the US (IEEE/ANSI standards) do require the barrier between compartments.

Same here in India. But don't think they are remotely connected.

same in western australia

In NA we generally avoid ring circuits at all costs, over the distances involved there is nearly certainly going to be a potential and/or phase angle difference between any two given branches even if they are all of the same gross voltage and even if they're all from the same substation transformer, simply due to the different lengths of wire.

@@44R0Ndin It's actually common in the US for Padmount transformers to have a high side switch that will isolate the pass-through connections from the windings. Maybe 70% of the ones I've worked on have had them. The three position ganged-switch, Andy, is present in a separate device that is usually located near the transformer it feeds, which are not always present(as shown in this video). In this case, the fused cut-outs can be pulled to open the circuit from source. But this does not ground the circuit that was opened. Also, that interior is dirty. Annual cleaning will clear out those spider webs and dust from the semi-con material. I would also much prefer pulling the loadbreak elbow rather than pulling the bay-o-net fuse on a live transformer. The LB elbow has an arc-interrupting prong that is designed to help extinguish any resultant arcs from breaks during load. The fuse does not.

Did you notice they used the British phase colours on the HV side?

Whats the reason they keep you "contained within the fences" where you bad at one time?

@@Ivansgarage He is obviously the guy building the box that's inside the fence. That box is dangerous as explained in the video.

The buzz the transformer reacting to the 60 Hz or 50 Hz electrical frequency (depending on the standard in your country). The core changes its magnetic field at 60 cycles per second, which causes it to vibrate relative to the steel cabinet.

a 347/600 volt system is actually quite rare in North America, I think only Canada uses it and even then parts of Canada use 277/480. But in both Canada and the US the 347/600 and 277/480 systems are only used in commercial and industrial installations. Residential systems use either 120/240 for split phase power or 120/208 systems for three phase power. Most Residential settings use the 120/240 split phase systems, but occasionally a farm house or more commonly, a large scale apartment block will have 120/208.

@@ryuukeisscifiproductions1818 depending on where you are, you can also get a 3phase 240V Delta, with a 120V tap. Very common in Chicago and the surrounding areas.

@@ryuukeisscifiproductions1818 347/600 volt is apparently used by textile mills in the Southern USA. I know that I purchased a small 1kVA step-down transformer on Ebay with a 600V primary and a 120/240V secondary from a US seller, so someone, somewhere in the USA did or does use 600V.

@@ryuukeisscifiproductions1818 Unless you are in NYC I am surprised that you have run into 208 volt electrical systems. From what I have heard the rest of the country has residential buildings on 240.

@@mharris5047 Most larger apartment blocks are supplied with 120/208 overall with individual units using two out of three phases. And yes occasionally a Farm will use three phase power, though it is actually quite common for farm irrigation systems to use an open delta 208 supply. Also depending on the Power Company, residential Three phase power can be requested.

Funny story, after watching your video the other night, I got flagged down by a customer for part power at their factory. Primary tested good, turns out the had a blown fuse inside the padmount. I watched the troubleshooter open the fuses just as you explained. For the record, I’m in Substation Ops and the padmount is “outside the fence”. OHL works on padmounts.

As a kid, Owen County RECC had Reddy Kilowatt.

Probably plenty of would-be copper thieves have met their end across the terminals of one of these (in one way or another).

Which of their many factories?

@@johndododoe1411 Australia 👍

Me too. I was usually standing there with a 2x4 to knock him loose if he got hung up (electrocuted!)

Power company only. Police can't do anything without their assistance, and as equipment owners, they would be the victim in any formal police report.

The one time where contacting the police would be a good idea: if you need assistance with crowd control, to keep people away from the danger.

Louie looks much cooler than the bird thing we got in Ontario!

for some odd reason people get entice when they see danger sign and they will break in, versus a green box.

Awesome! Thanks for the sub Allan! 👊👊

Canada is Red/Black/Blue for L1, L2, and L3. USA is Black/Red/Blue for 208Y120.

@@brnmcc01 Thanks. Even though there is no listed standard in the US, most would do it black/red/blue and figured Canada the same, guess not.

What determines using Delta or Wye on the primary vs secondary? It seems like the Delta / Wye is the most common configuration, I don't recall seeing many Delta / Delta or Wye / Wye transformers. I'm curious of what the advantage is.

This unit appears to be a GrdY (internally grounded Wye) primary. Not delta. You can see the H0 decal beside ground bus bar.

@@joegutteridge4317 You are right, I stand corrected. Good eye!!

I get some more content on the fuses for sure! It would be more accurate to say the pressure is more a result of abnormal operation... While pressure is expected, it's a result of air expansion with heat and off gassing. Too much pressure may be an indication of a problem

Way back in the day I worked for a company that builds transformers. The pole mount units we charged with nitrogen, 5psi if I recall not much. I do not know if the pad mount units were also but I think they were.

@@Bobsdecline some transformers have a nitrogen blanket on top of the oil in the head space usually 0-5 psi.

Like to see. Copper bandits hit that one

Always looking for new people in this field of work. Check Eaton, Siemens, ABB or Schneider websites, for jobs. All training and security stuff is included.

@5:31 you can see the three incoming MV shielded cables on the left. In this case it looks like they are using the copper shield to directly bond to ground. In most cases they will spring on an AL braid onto the shield under the termination and bring that out to bond to ground. In both cases they have a drain line brought up to loop onto the semi-con of the Load-Break elbow bushing's dedicated drain line hole. It's hard to see on these because the tags hanging from the capacitive tap cover. On the B side of the High side the bushing covers have AL or Copper drain lines grounded on the copper bus that runs horizontal on the middle bottom of the XFRM. For the Secondary of the XFMR, they are using White, Red, Black and Blue to denote Neutral, and each phase. You can also peek the X0 ground strap between X0 and X1 cables (white and red marked). Also another frame ground strap in the bottom right. The bare coppers are your leads to a ground rod, or part of a bare copper ground grid or to UFER. This is the far bottom left. The insulated copper on the bottom right that is hard to see is brought out with the other low side conductors. It looks insulated, but could be the shadow.

I assume you mean 25A 400V 3 Phase? If that's the case, it is 17.3kVA. That's equivalent to 72A at 240V. North America is really 240V: kzfaq.info/get/bejne/oLOdiNKLzZmsoWg.html

@@matthewbeasley7765 On split phase, the equivalent of 3x25A on 3x230V is 2x75A on 2x115V. Which might round to 72A if that's their standard fuse size.

@@johndododoe1411 Do it again, but use 240/120V instead of 230/115V. The standard nominal voltage is 120V, not 115V in North America.

That's an excellent idea for a video! An great information to cover! Def gonna do that👊👊. I took a screen shot of this also and will cred the idea. 🍻 Cheers!

​@@Bobsdecline Thanks so much, I'm sure there's more to it than I can think of on my own, since I'm just an auto mechanic. EDIT: Oh and I'm sure you already know this too, but rodents especially cause plenty of chaos in the engine bay of a vehicle too, simply because of their instinctual desire (and physical need) to gnaw on just about anything in order to keep their teeth trimmed back. Either Honda or Toyota even makes special electrical tape (pretty standard 600 volts rated stuff) with capsaicin in the plastic and adhesive in order to deter rodents from chewing on the wires, great thing is that it will work on any vehicle since other than the spicy chemical it's just ordinary electrical tape. END EDIT The closest thing I get to working with that kind of high voltage is the secondary side of the ignition coils on a gasoline engine, or the occasional hybrid vehicle. So far I've never really had reason to actually get into the high-power electrical side of a hybrid vehicle, all I usually need to do to them is brakes, suspension, and oil changes and for that you don't really need to disconnect the battery pack or anything like that, but if/when I do I'm gonna do it right and wear the recommended PPE for it. Full EV's and plug-in hybrids are also getting more and more common, eventually I'm probably gonna have to start working on those too, but the same approach applies, I'm gonna protect myself appropriately to do the job the right way.

Oh I can tell you all about outages from suicidal squirrels. We have an average of 1-2 a year here because they love to climb on the pole pig in our backyard. For whatever reason the transformers on the spur that feeds the three block cul-de-sac I live on are fused so anytime a squirrel meets its maker the whole whole line trips out. Makes a lovely smell too and sometimes like last time a mess when it happens. Mentioned to the lineman last couple times that either fusing the pigs or putting squirrel guards on them might not be a bad idea but nothing has been done.

You'd think in the year 2022, we'd have figured out how to outsmart the squirrels by now... every time I hear that, it sounds like a lame excuse / cover up for "we don't do any preventative maintenance, only reactive maintenance after something broke - just blame it on a squirrel - people still buy that line"

@@gorak9000 What rodents lack in intelligence they more than make up for in determination. Hard metals and concrete are just about the only two things that can truly keep out a rodent, because they're literally able to (eventually) chew thru pretty much anything else, given enough time.

Generally that's a self-clearing fault if across the HV terminals. Dang squirrel gets vaporized.

We used to call them "pimple chasers" as it was an entry level manufacturing job. I was one. We built large GE transformers in Pittsfield, Ma.

Standards organizations like those numbered labels, notice the inside panel uses them. But for practical work, single letters are easier to get right. I was raised with phases being R, S and T, while the other ends of motor windings being U, V and W. color coding has been inconsistent my whole life, with new standards being arbitrarily changed multiple times in the 50+ year lifetime of installed cables.

In Australia they call them after colors, red blue and yellow phase iirc. So there is no “world standard”

@@Engineer9736 Fun fact: There is - it‘s the british (colonial) countries and the rest of the world…

In an urban area, absolutely! Rural..... There would be thousands of unused tap points that still wouldn't cover every possible build zone. We've got a lot of wide open space around here! Thanks for the comments and for watching! 🍻

I try n make content for both the general public and fellow trade workers. I was actually a little worried that I didn't dive into quick enough with this particular vid. I appreciate the feedback very much! Thanks for taking the time 👊

As good a reason as any! 👊🤝

Awesome! Thanks for leaving the comments as well! 👊👊🍻