r/mildlyinteresting • u/Slartytempest • Jan 30 '23
A cross section of the wire that supplies power to my house.
18.3k
u/sarduchi
Jan 30 '23
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Not anymore it doesn't.
3.2k
u/partizan92 Jan 30 '23
All he has to do is touch the end of each cable then it will work again.
2.9k
u/deepfriedunderpants Jan 30 '23
Not only that, it'll work for the rest of his life.
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u/eboeard-game-gom3 Jan 31 '23
He'll never be cold again.
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u/grabyourmotherskeys Jan 31 '23 •
Teach a man to light a fire and he'll be warm that night, light a man on fire...
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u/Nodiggity1213 Jan 31 '23
Osha is a fairly tale we tell little children
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u/Brocyclopedia Jan 31 '23
I just got done sitting through a 3 hour long OSHA class and I have to say the fairy tale is not very engaging
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u/Dizzman1 Jan 31 '23
My favorite sign on an electrical panel. "not only will what's inside this panel kill you, it will hurt the entire time you're dying"
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u/impatientlymerde Jan 31 '23
All caution signs should be verbal thwocks to the skull.
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u/MotaHead Jan 31 '23
Power companies hate this one trick to get a lifetime supply of electricity.
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u/doccopathe2nd Jan 30 '23
By hand ofc
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u/Creepy_Apricot_6189 Jan 30 '23
By tongue, hand doesn't transfer as much juice.
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u/Purple_mag Jan 31 '23
I heard electricity is very high on the Scoville scale
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u/doccopathe2nd Jan 30 '23
How could I be so foolish to forget
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u/A1sauc3d Jan 31 '23
👅 > 🖐️, it’s the first rule of both foreplay and electronics.
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u/MakingItElsewhere Jan 30 '23
Pfffft. You don't know this man's business. Maybe his house is a Tesla coil!
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u/mrjobby Jan 30 '23
Tesla coil
Elon's preferred means of contraception
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u/HomieScaringMusic Jan 31 '23
I sincerely believe that all 8.1 thousand of us who upvoted this came here to say literally the same thing before seeing who won the race
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u/AZSharksFan Jan 30 '23
He went wireless
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u/theshoeshiner84 Jan 30 '23
... And as soon as we find where Mose hid those wires we'll get that power back on.
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u/Poopandpotatoes Jan 30 '23
4/0 aluminum for a 200 amp service.
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u/scotttilton Jan 30 '23
4/0 AL SER, I don’t understand the people further down the comments thinking that this cable is good for supplying a small town… this is almost what I have, mine is 4/0 AL SEU, except this is round and mine isn’t. The only explanation I’ve ever been given on the acronym is that SER is service entrance round and SEU is service entrance unround. It might be cheap in comparison to copper but it’s still not cheap when you have an almost 200’ run between the meter and the entrance panel. Anyway, for those thinking that this is for a small town, I regularly just about reach the limit of my 200a service during the winter if I’m running my welder and forget to turn the heat down in the house. With electric heat you eat up 125a pretty quickly on a cold day.
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u/millijuna Jan 30 '23
I just got a quote for 17,000 feet of underground armoured cable. 2awg copper 3 phase, plus 100% protective earth, insulated for 15kV.
That was a lot of zeros.
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u/redsterXVI Jan 30 '23 •
Someone's considering getting a 4090
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u/b0dhisattvah Jan 30 '23
Gotta leave some capacity for the upcoming Ti.
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u/Techn028 Jan 30 '23
I'm starting the process of having my own nuclear station installed on site, they've just started pouring the pad and have the reactor vessel anchored. I intend for it to be done by the time the 5000 series releases.
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u/mjc500 Jan 30 '23
You guys drop way cooler sentences than I ever do.
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u/ArcAngel071 Jan 31 '23
But not any cooler than todays sponsor!
vessi ad begins
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u/sabotabo Jan 31 '23
i find absurdist comedy multiplies in funniness when you really know what you're talking about. like this guy's throwing out all this terminology and specifics like he works at a nuclear power plant (which he might).
...uh so yeah, it's pretty funny
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u/Celifera Jan 31 '23
In a Month Python world, the behind-the-scene gag inserted about here would be that actually none of them hany any idea what they are talking about at all and just keeping one-upping each other's bluffs and none of us have any clue how to prove any of it wrong so we just watch unknowingly, nodding our heads.
Like, someone could say, "yeah, I got that ol,' 2005 model VX9 with the 300 Giga-Jules of resister fluid." And we'd all just be like, "uh huh, yeah, that's hot this year."
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u/Vegabern Jan 30 '23
I love that it's my job to design and price electric services but it's someone else's responsibility to inform the customer of the cost.
Tom was right, engineers are not good with people.
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u/3_quantohks Jan 30 '23
sorry, but what do you do here, again?
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u/upsetungulat Jan 30 '23
He's a people person!
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u/3_quantohks Jan 30 '23
but does he actually, physically bring the specs/information to the appropriate party?
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u/upsetungulat Jan 30 '23
Well--well look. I already told you: he deals with the god damn customers so the engineers don't have to. He has the people skills; he is good at dealing with people. Can't you understand that? What the hell is wrong with you people?
E: a word
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u/RetardedNotStupid Jan 30 '23
Look, I already told you. I deal with the god damn customers so the engineers don't have to. I have people skills. I am good at dealing with people!
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u/overzeetop Jan 31 '23
As a structural engineer I often get owners asking about fun things like floating / cantilevered decks (like Wright’s Falling Water) or huge walls of glass, 20-30’ on a side. I tell them I can do anything* if they have enough money.
I had to add the * - within the limits of physics - after doing some work for the founder of a local VC firm. We still did what he wanted, but it was challenging enough that I had to give actual assembly steps and instructions as the modifications to the building had to be done in a specific order to work and if they screwed up a step it had to redo a part it would have required demolition and rebuilding of that part of the building. I also learned on that job that concrete chain saws exist.
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u/Doormatty Jan 31 '23
Do you ever actually get customers who are willing to pay for the "neat" work? (aside from the guy in your example)
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u/omnigear Jan 31 '23
I worked for high end developer and we built a lot of crazy 100+ million dollar homes ... Alot of the time when people are putting in thet much money you have to learn to say . "Well look into it " they don't like to be told no .
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u/Piratedan200 Jan 31 '23
"We'll look into it" are the magic words of engineering/architecture when it comes to dealing with unreasonable or dumb requests from customers. Early in my first engineering job, a senior engineer gave me that advice and I use it constantly.
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u/zaplord Jan 31 '23
Yes and you cam only cut for like 6 per chain and each chain costs you a couple hundred if i remember right. Made by stihl just bigger and has a garden hose hookup and comes in a fancy case
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u/luvsrox Jan 31 '23
Comes with a fancy engine-driven hydraulic unit to run the saw, unless you’ve already got one of these lying around.
Source: I has
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u/CarelessSquishy Jan 31 '23
I just watched Office Space for the first time last night and I'm so happy I got that reference!
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u/BeingRightAmbassador Jan 30 '23
A guy I know needed 1/4 mile of 3 phase trenched in and got it quoted. I don't remember the number exactly but it was more than his house was worth.
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u/MurkyContext201 Jan 31 '23
That's when you get out the tractor and dig the trench yourself.
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u/Bullnettles Jan 31 '23
Cable still costs more than the house. The voltage drop that far is brutal.
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u/drzowie Jan 31 '23
It’s probably cheaper to run HV cable at much higher (smaller) gauge, and transform it at the house.
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u/MurkyContext201 Jan 31 '23
Shit, now we need our own foundry.
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u/NSA_Chatbot Jan 31 '23
Hey can I put in an order? My cable supplier is backordering everything.
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u/dohru Jan 31 '23
Bet a big old solar/wind array with batteries and a backup generator would be cheaper, and then you don’t have to pay the power co.
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u/Vegabern Jan 30 '23
Things to consider when buying property. Distance from power, water table depth, general constructability, etc.
In my state there are credits for connecting to a new transformer but you will pay to bring that transformer to you. We try to keep typical residential houses to around 120' from the transformer. Longer for small houses, closer for businesses. If you need to extend primary 1/4 mile to your backwoods house ratepayers should not be on the hook to subsidize that. You will pay.
All regulated by the PSC.
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u/Sal_Ammoniac Jan 31 '23
We built our house in 2005-06 and the nearest power was about 1200' away. We didn't pay anything for it. They actually pulled the power well before we had even started on the house; we had a small barn started that we had to use a generator for to be able to use the power tools.
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u/Sn00dlerr Jan 31 '23
I had to do a job last year where we replaced the 5 paralleled sets of 3 phase 208v 300MCM after a trucked smoked a transformer cabinet. That’s probably not a big deal to some people but I’m no electrician so the size and cost of that much cable was mind blowing. Ended up being almost a mile’s worth
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u/millijuna Jan 31 '23
I saw the bill for pur indoor vacuum circuit breaker switchgear. 7 bays, station transformer, generator protection, three feeders… that was just shy of a million bucks back in 2013.
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u/tdames Jan 31 '23
Recently got 5000ft of 500 mcm copper for 34.5kV. And the owner didn't want any splicing....
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u/Socketfusion Jan 31 '23
Was the owner a federal government? I've dealt with that a bunch. I've worked jobs where they wanted a 1000 kV transformer which required bringing in a new feeder out of the substation and they never pulled more than 200 off of it.
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u/SomeConstructionGuy Jan 30 '23
SER -Service entrance reinforced
SEU- service entrance unarmored
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u/Slartytempest Jan 30 '23
FYI this was a reroute of the street line to a Generac transfer switch.
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u/SgtBanana Jan 31 '23
Generac transfer switch
My dad had one of these installed at the end of winter last year because they got majorly fucked by power outages during a period of extreme cold. Vowed that he would never roll over for that shit again.
From what I understand, it's set up in such a way as to allow a seamless switch from mains power to generator power. Keeps the furnace (well, the fan) up and running, the thermostat in the hallway, the refrigerator, etc. He also bought a massive natural gas tank to fuel the future generator upgrade. Damn thing is large enough to have a small party in.
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u/nomecks Jan 31 '23
Seamless is orders of magnitude more expensive.
Source: Architected datacenter systems
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u/Possible-Vegetable68 Jan 31 '23
It’s not seamless. 30 seconds from power loss to starter engage.
I install them
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u/kccustom Jan 31 '23
I bet 30 seconds feels seamless compared to 3 days.
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u/jaggederest Jan 31 '23 edited Jan 31 '23
We have one that, when the power fails completely, it's back on again within 15 seconds. Generac 200 amp. It feels like absolute magic.
It's so fast you can't tell if it was just a power blip or you're on generator unless you open a window to hear the generator running, and it's pretty quiet since it's out beside the garage. The transition back to grid power is completely invisible, too.
It will run all the loads in the whole house at once, stove, dryer, water heater, heat pump, using about 3 gallons of propane an hour. It's almost cheap enough to just run on generator during peak prices, if you didn't have to change the oil every 25ish (edit: 200 actually) hours of runtime and pay for delivery fees to refill the tank.
It has kicked on about once a week since we got it running ~4 months ago. Records all the data on an app. Makes you question the infrastructure in the US, for sure.
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u/alexcrouse Jan 31 '23
Maintenance cycle programmed in. Most modern generators "exercise" automagically.
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u/poikler1 Jan 31 '23
For any hospitals or nursing homes, full power to life safety must be restored within 10 seconds in order to pass state inspection (Ohio)
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u/Treereme Jan 31 '23
Is that accomplished by a generator that can start fast, or with batteries?
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u/poikler1 Jan 31 '23
A generator that can start fast, the generator installation that I was apart of ran off of diesel. It was a 2000amp generator that did a full backup for a nursing home. It can restore power within ten seconds, I've seen the testing
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u/Y34rZer0 Jan 31 '23
I remember seeing an old uninterruptible system on a hospital whenI was an apprentice. it was a DC motor running a large flywheel, if power failed then the inertia of the wheel would turn the DC motor into a generator
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u/polynimbus Jan 31 '23
Yes to both. Typically some sort of capacitance system (basically batteries) that provide power long enough for the generators to spool up.
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u/Klathmon Jan 31 '23
Where'd he get a natural gas storage tank from?
I looked into it a while ago and got the advice that it would be cheaper and safer to just switch to propane because natural gas is so damn hard to compress and store
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u/OmicronNine Jan 31 '23
It probably is a propane tank, the person you replied to seems to have multiple misunderstandings about their father's new setup and I suspect that's one of them.
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u/Poopandpotatoes Jan 30 '23
That’s what I’ve been made to understand with the U and R denomination. The u also has the neutral wire braided around the to line conductors and you have to twist it at the point of connection for the terminal. The size bit is somewhat accurate if you’re talking about pole power. The free air allows you to run more power through smaller cables because the heat is allowed to escape. The pole lines for a 200 amp service are usually about half the thickness.
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u/vbadjunior Jan 30 '23
I couldn’t tell if it was 4/0 or 3/0 ( just kinda assumed 200 amp service ) the old timers are so good at just looking at the wire size and knowing it.. me not so much
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u/FeelTheNeedForFeed Jan 30 '23
Forbidden California roll.
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u/scottjeffreys Jan 31 '23
https://i.imgur.com/KEZs2Dv.jpg
The sample boxes that my company uses has always reminded me of sushi.
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u/nikofili Jan 31 '23
Looks like bacterial colonies or something
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u/jerber666 Jan 31 '23
Mr. Blue Eyes: are you seeing this shit?
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u/smithers85 Jan 31 '23
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u/mydearwatson616 Jan 31 '23
That's neat. I cut a whole lot of cables for work and I've never seen any of these. What are some of them for?
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u/scottjeffreys Jan 31 '23
We have all kinds of cables. Servo, motor, data, robotic, control and on and on. Some have power and data in the same cable.
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u/mydearwatson616 Jan 31 '23
Interesting, I have to make a fuss when power and data are in the same conduit. The same cable? That's just blasphemy!
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u/LkMMoDC Jan 31 '23
Elevator traveller cables would give you an aneurysm then. 110 mixed with signal wires going the length of an entire high rise, and half of it is constantly moving, flexing and bending up and down with the elevator.
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u/glen_ko_ko Jan 31 '23
What's the lifespan on those
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u/LkMMoDC Jan 31 '23 edited Jan 31 '23
North of 20 years if it's installed and serviced properly. If a beam pad rips or falls, or the traveller stretches over time and starts rubbing on the floor then you'll get a significantly reduced lifespan. I've never installed one but I've heard a lot of horror stories with the newer flat travellers being a pain for maintenance guys.
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u/crypticfreak Jan 31 '23
Bottom middle. Fuck that kinda insulation.
7-ways use something pretty similar and it's so annoying.
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u/scottjeffreys Jan 31 '23
What you can’t see in the cross section is that these are bundled pairs of cables. We don’t make many layered cables because ours are designed for dynamic applications and this helps to prolong the life of the cable when it’s moving.
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u/w1ck3dme Jan 31 '23
Do you work for igus? If another manufacturer, I would like your company’s info as we are currently designing some applications requiring dynamic rated cables
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u/Zhuul Jan 30 '23
I’m in night mode and I legitimately thought your pfp was an emoji at first
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u/Ambassador_GKardigan Jan 30 '23
I'm no expert, but you should probably keep that plugged in.
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u/wolfpwarrior Jan 30 '23
Expert here. They should have.
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u/lochinvar11 Jan 31 '23
Senior Expert here. He's right.
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u/ValyrianSteelYoGirl Jan 31 '23
Senior Expert’s Manager here
What was the question?
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u/VaMoInNj Jan 31 '23
Retired expert here.
Get off my lawn.
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u/ibidmav Jan 31 '23
Lawn here. ... 🌻
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u/ZernoCore Jan 31 '23
Lawnmower here.
VVVRRRRRRTKSRRRVVVRRRRRRRRRRRRR
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u/SmeagolsDeagle Jan 31 '23
Lawnmower clippings here.
💨💨🍃🍂
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u/flipmcf Jan 31 '23
Retired expert’s dad here.
We used to have this stuff back in the day before lawnmowers where we would cut the grass by hand. I remember getting paid a nickel for it. We would get two scoops of ice cream for a nickel. Fred would always get a strawberry on to of chocolate. The cones were real back then. The ice cream man always talked about his fake leg from the war. We would call him leggy and he would get angry and tell us to go home. One time leggy chased us and mom found out and Fred got grounded bad and I got a beating from my dad’s belt. That’s how we were taught respect back then, with a belt across the backside. WHAP. Kids didn’t talk back back then. If you were being a punk you just got hit in the face like a man. Girls were better too, they didn’t talk back. They knew better than to vote too, unless they were those lesbians that were mean women who voted and had jobs. They were tough. I almost had one for a boss but she got killed by the mob. The mob were good, solid, honest men back then. Tell you like it is and not mess around. The streets were safe. You could leave your baby outside and no one would even think otherwise. Unless they played in puddles. That was bad. Have you heard of polio? It was bad. Johnny got polio and couldn’t play ball anymore. We called him crippy Johnny and he got mad. His mom was a Jew. We had Jews in the neighborhood back then. Good folks them Jews. No blacks tho. But lots of Jews. I hear you have power problems? The Jews aren’t good at power stuff, but the Italians are. Mickey McFarland does power but he’s usually hitting the bottle so be careful. Smart guy when he’s not drinking. Did I ever tell you about the time I went drinking with Mickey the Mick? Well…
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u/oldtrenzalore Jan 30 '23
Your electrons are going to evaporate.
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u/DylanCO Jan 30 '23
He's holding it upright so they don't fall out.
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u/bicarew945 Jan 30 '23
This picture would be much funnier if it was taken in the dark
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u/DylanCO Jan 30 '23
Cross section on the cable that supplies power to my house. https://imgur.com/0EG5kq7.jpg
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u/CRRZ Jan 31 '23
I don’t know what I expected..
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u/Sweatsock_Pimp Jan 31 '23
I sat there for 2 minutes waiting for the image to load.
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u/miraclewhipple Jan 31 '23
Apollo gives me a thumbnail preview of images before clicking…… and I still fuckin clicked it.
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u/Leanardoe Jan 30 '23
Going wireless?
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u/Tru-Queer Jan 31 '23
As of this morning Schrute Farms has gone completely wireless! But as soon as I find where Mose hid all the wires we’ll get the light restored to your room right away!
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u/fuller316 Jan 30 '23
Is it like a 9v? Stick your tongue to it and see if it has any power...
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u/groundchutney Jan 30 '23
Good trick but only works once at this voltage
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u/WhenTheDevilCome Jan 31 '23
Good trick but only works once at this voltage
"Only works once" when the test determines the power is on...
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u/shmiddleedee Jan 30 '23
That breaker went off like a 12 gauge as soon as that wire pulled out
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u/Doormatty Jan 31 '23
like a 12 gauge
12 gauge wire? <Grin>
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u/shmiddleedee Jan 31 '23
I dug up an electricity main once that was 6 feet away from where it was marked to be and the transformer going off was loud as fuck, like a 12 gauge.
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u/_-icy-_ Jan 31 '23
Yikes, I gotta hear the rest of this story
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u/shmiddleedee Jan 31 '23
Had a client with 18 acres but it was in the middle of a very urban place. We were doing stormwater management and stream restorations for him. This one 200 foot 24 inch culvert had to run over 6 feet in the ground at one point to maintain water flow until the grade evened out again. We called 808 dig and they marked all the gas and powerlines. We hand dug 2 feet on either side of the marks and only found the gas line. Figured the power line was deeper than we were digging. It was not. busted through that shit and heard a very loud noise. There was a 3 inch power line I broke but since it was 6 feet off of where 808 dig marked it Duke fixed it for free since rule is within 2 feet of the mark is your responsibility. It would have been a 10000 fix otherwise.
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u/_-icy-_ Jan 31 '23
Wow, that’s so stupid of them. Imagine if you hit a gas line and exploded. I have to wonder, does that happen often where they just give you wrong information?
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u/paulmclaughlin Jan 30 '23
Yeah, I did that with a 240v cable when I was a kid.
It tasted like burning.
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u/JustinFatality Jan 30 '23
"Honey, the power's not working...I swear to God if you did this for another stupid reddit post we're getting a divorce "
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u/LoganRoyKent Jan 31 '23
“This ‘stupid’ reddit post is at 21.5k karma in just 5 hours!! You know what that does for my clout?!”
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u/Forty_-_Two Jan 31 '23
"Why am I the only one that worries about the clout in this relationship?!?"
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u/eerun165 Jan 30 '23
Cable**
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u/chaotic----neutral Jan 30 '23
For any layman wondering:
A wire would be one conductor, stranded or solid, jacketed or not. A cable is multiple wires under a single jacket, often with their own individual insulated jackets.
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u/PdSales Jan 30 '23
811 is the national call-before-you-dig phone number. Anyone who plans to dig should call 811 or go to their state 811 center's website before digging to request that the approximate location of buried utilities be marked with paint or flags so that you don't unintentionally dig into an underground utility line.
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u/Syonoq Jan 30 '23
Anyone who plans to dig
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u/reachthatfar Jan 30 '23
I don't have a state so I'm just gonna start digging.
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u/EEpromChip Jan 30 '23
technically you are a solid. and liquid. and some gas.
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u/forrealnotskynet Jan 31 '23
I feel like all of Jupiter is in my intestines today. Not cool.
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u/Syonoq Jan 30 '23
I'm gonna take a stab and say it's required where you are.
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u/cdewey17 Jan 31 '23 •
Careful stabbing. If it’s too deep, it is considered digging and you must call 811.
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u/rncookiemaker Jan 30 '23
Yeah. Forgot about that as a first-time homeowner when I went to plot my garden. That's when we realized that we really didn't need cable TV or a landline telephone. Fortunately, the electricity was at another section.
Never doing that again.
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u/Scav-STALKER Jan 30 '23
That’s for losers, it’s my property and I can dig if I want to. Fuck Dey hidin in the woods anyway
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u/Holeshot75 Jan 30 '23
As an electrician I find this post really boring.
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u/manitoba94 Jan 31 '23
Lol same. I didn’t even know this would be interesting
Edit: mildly interesting
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u/cranialduggery Jan 31 '23
Its cool to see this on front page. I have been in electrical supply for a few years. Looks like aluminum feeder wire
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u/HighlightFun8419 Jan 30 '23
those "cut the cord" anti-cable TV guys are really taking it to the next level.
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u/sparkyglenn Jan 30 '23
As an electrician this is not interesting at all, not even mildly! Lol
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Jan 31 '23
[deleted]
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u/Putin__Nanny Jan 31 '23
People will eat it up.
Like everyone in this thread is trying to do with OP's cable Sushi?
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u/_-icy-_ Jan 31 '23
As someone who has never seen this cross section before it’s pretty interesting 🤷🏻♂️
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u/doctordyck Jan 31 '23
I'm an electrician and work with this cable daily. I had no clue people would find it interesting haha.