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Why aren't electrical lines insulated so that you can't get shocked like that if you touch them? And why isn't there some sort of breaker or fuse system? I only know about electronics wiring so I'm sure there's a good reason, but everything I make has some sort of built-in short protection and all my wires are insulated so you can touch them and there's no risk of them touching each other and even if they do the short-protection kicks in and protects everything.
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Jun 14, 2017 20:11
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| # ? May 17, 2024 18:24 |
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You'll be alright but the guy you hit is hosed either way
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Jun 14, 2017 20:13
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The rubber insulation adds a bunch of weight and cost that isn't seen as necessary since the wires are usually way out of reach. Insulation will be added where it's more likely that someone could get near the wire, like at the junction to your house. Also for the higher voltages, the amount of rubber you'd need would start to get ridiculous, especially when just hanging the wires in the air provides all the insulation you need.
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Jun 14, 2017 20:20
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Snowglobe of Doom posted:
  
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Jun 14, 2017 20:24
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Sagebrush posted:The rubber insulation adds a bunch of weight and cost that isn't seen as necessary since the wires are usually way out of reach. Insulation will be added where it's more likely that someone could get near the wire, like at the junction to your house. Yeah at that point it'd be cheaper and easier to bury the lines. oh god this is beautiful. Please tell me this is from security escorted patients like prisoners with a guard.
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Jun 14, 2017 20:24
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GnarlyCharlie4u posted:Yeah at that point it'd be cheaper and easier to bury the lines. Watch out, it's got a gun and knows how to use it!
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Jun 14, 2017 20:28
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This is AMERICA, and you will NOT stop me from defending myself if any TERRORISTS try to interrupt my MRI.
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Jun 14, 2017 20:28
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Baronjutter posted:Why aren't electrical lines insulated so that you can't get shocked like that if you touch them? Because that would be gently caress-all heavy. These are high-voltage lines, a little bit of plastic like on the 120V wires in your house isn't going to do the trick. quote:And why isn't there some sort of breaker or fuse system? There are. But again, these are high-voltage lines, the entire point of them is to carry a lot of current, so the interrupters are sized appropriately. If they were sized to prevent the amount of current flow that would kill a human being they'd be useless for power transmission. Even the breakers in your home panel will allow way more than enough current flow to kill you, the point of breakers is to prevent fires, not save the lives of people who put themselves between the hot side and ground. Phanatic fucked around with this message at 20:34 on Jun 14, 2017 |
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Jun 14, 2017 20:29
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Phanatic posted:Because that would be gently caress-all heavy. These are high-voltage lines, a little bit of plastic like on the 120V wires in your house isn't going to do the trick. Yeah that's what I figured, the insulation would need to be like an inch thick, and the tolerances on any sort of "fuse" to protect a human would cause normal usage to instantly trip the system. Electricity is terrifying and I don't like to mess with anything over 12v
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Jun 14, 2017 20:31
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Correct me if my guess is wrong, but wasn't that dude completely hosed and dead pretty much instantly so it wouldn't have been worth even trying?
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Jun 14, 2017 20:34
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GnarlyCharlie4u posted:Please tell me this is from security escorted patients like prisoners with a guard. I read the case report on the top one, the pistol in the holster. It was an off-duty cop going into the machine who put his Colt 1991 on a filing cabinet before going in. It actually fired even with the safety on because the magnetic field pulled the firing pin block up and the force of the gun hitting the side caused the firing pin to fly forward and strike the primer.
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Jun 14, 2017 20:35
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Why don't we just use these as airport security machines?
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Jun 14, 2017 20:35
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Second Amendment rights have gone too far!
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Jun 14, 2017 20:46
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blugu64 posted:Why don't we just use these as airport security machines? I would love to go get all my fillings ripped out whenever I take a flight
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Jun 14, 2017 20:52
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Quick and dirty. 
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Jun 14, 2017 20:52
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EVIL Gibson posted:I would love to go get all my fillings ripped out whenever I take a flight
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Jun 14, 2017 21:19
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EVIL Gibson posted:I would love to go get all my fillings ripped out whenever I take a flight Right, that's why they don't let you have an MRI if you have any metal fillings
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Jun 14, 2017 21:20
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Gobbeldygook posted:Your fillings are not magnetic. Lookit this fancy guy with his fancy fillings. Sorry I'm a filling plebian 
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Jun 14, 2017 21:28
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e: nvm
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Jun 14, 2017 21:29
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It'd be a good excuse for me to never fly again. "Sorry, don't wanna have my arm ripped apart due to the plates and screws in it."
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Jun 14, 2017 21:56
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Machine shop workers, welders, etc. are all under extra scrutiny when the decision is made whether or not to MRI. Particularly if they are from other countries with less strict safety standards, or god forbid mariners. My friend's dad worked on grinders on an Indonesian freighter in his youth and never wore safety glasses. They wouldn't give him an MRI because they were worried about undetected metal slivers or other fragments in his eyes being pulled out.
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Jun 14, 2017 22:02
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It's a good thing kidney stones aren't ferromagnetic.
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Jun 14, 2017 22:04
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Sagebrush posted:Right, that's why they don't let you have an MRI if you have any metal fillings Yes they do. If you have metal pins or fillings in your body, you're fine. Those objects are too small for the magnetic forces to overcome the fact that they're lodged securely in your body. You may feel a bit of pressure around that area, but that's about it. The main disadvantage of metal in the body during an MRI is that it can disrupt the scan if they are near the area being targeted by the scan.
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Jun 14, 2017 22:05
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An MRI sounds like the perfect quick-and-easy way of dislodging all those fidget spinners stuck in all those anuses that I've been reading about.
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Jun 14, 2017 22:07
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Bloody Hedgehog posted:Yes they do. If you have metal pins or fillings in your body, you're fine. Those objects are too small for the magnetic forces to overcome the fact that they're lodged securely in your body. You may feel a bit of pressure around that area, but that's about it. The main disadvantage of metal in the body during an MRI is that it can disrupt the scan if they are near the area being targeted by the scan. I know sarcasm is hard to read over the internet but 
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Jun 14, 2017 22:08
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https://www.youtube.com/watch?v=yox9CKYh7EU So, just how much hyrostatic pressure is likely to be on those plywood sheets?
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Jun 14, 2017 22:46
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Rahul posted:https://www.youtube.com/watch?v=yox9CKYh7EU I was just gonna post this, disaster waiting to happen, his shoring is weak as hell since it's done on the corners.
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Jun 14, 2017 22:49
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Glagha posted:I know sarcasm is hard to read over the internet but plus he's wrong anyway because amalgam fillings are nonmagnetic, and the only chance of them being moved by a magnetic field would be through some sort of induced reactance which would be even more vanishingly tiny of an effect
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Jun 14, 2017 22:52
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That thing terrifies me because I have a hard time thinking of anything more horrifying than dying buried alive under 6 feet of sand.
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Jun 14, 2017 22:52
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Glagha posted:That thing terrifies me because I have a hard time thinking of anything more horrifying than dying buried alive under 6 feet of sand. How soon people forget manure pits
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Jun 14, 2017 22:55
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That's some thick sand, any beach I know you dig more than a few feet and you'll hit water. What was the point of that huge hole he covered up with tiny cat-sized holes? I couldn't watch with sound.
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Jun 14, 2017 22:57
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Glagha posted:That thing terrifies me because I have a hard time thinking of anything more horrifying than dying buried alive under 6 feet of sand. How about 7 feet of sand?
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Jun 14, 2017 22:58
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Glagha posted:That thing terrifies me because I have a hard time thinking of anything more horrifying than dying buried alive under 6 feet of sand. At least it'll be relatively quick. If I remember correctly, the weight of all that sand will instantly push the air out of your lungs and you'll black out probably within seconds. It'll be a pants-shittingly terrifying few seconds. Imagine being stuck in a box until the air runs out instead.
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Jun 14, 2017 23:07
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Phanatic posted:Aluminum itself will burn given enough encouragement, and it's entirely possible that a fully-involved structure fire qualifies. Igniting aluminium takes a lot of encouragement - like being covered in burning jet fuel. The plastic filling burns readily when exposed to even a small flame, as happened to the Lacrosse Building. A discarded cigarette on a balcony started a small fire, which spread to the cladding's plastic core, and climbed most of the height of the 23-storey building in about 10 minutes.
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Jun 14, 2017 23:17
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I love how they just left it there, on a beach... to be hosed with by kids or whomever.
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Jun 14, 2017 23:20
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not your typical rally occupational hazard but kinda person being killed by a car!!! https://fat.gfycat.com/AcrobaticDeepArrowcrab.webm
Somebody fucked around with this message at 04:04 on Jun 20, 2017 |
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Jun 14, 2017 23:29
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LifeSunDeath posted:not your typical rally occupational hazard but kinda I learned early in life to look both ways before crossing the street or race track.
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Jun 14, 2017 23:32
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Gobbeldygook posted:Your fillings are not magnetic. I guess if your a poor who can't afford iron fillings
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Jun 14, 2017 23:39
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How could he not hear it coming, you can literally hear these cars from like a kilometer away. Must've ruined the time pretty badly
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Jun 14, 2017 23:40
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| # ? May 17, 2024 18:24 |
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mobby_6kl posted:How could he not hear it coming, you can literally hear these cars from like a kilometer away. the video i got it from said it was intentional. So yah, they all must have had...a bad time.
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Jun 14, 2017 23:48
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