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 New USCSB video https://www.youtube.com/watch?v=WZmUVQMh9qM https://en.wikipedia.org/wiki/2017_Arkema_plant_explosion
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Nov 15, 2017 16:49
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https://www.theguardian.com/uk-news/2017/nov/15/recycling-company-apologises-after-trial-over-shredder-deathquote:A recycling company has apologised after an agency worker was dragged into an industrial waste shredder and killed.
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Nov 15, 2017 16:51
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Rad-daddio posted:What's the round thing under the glass, a Flux Capacitor? It's where an electric meter would go. The meter is removed and jumpered right now, free electricity (for now)
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Nov 15, 2017 17:00
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Improbable Lobster posted:Having some sort of black powder incinerator next to a bunch of illegal fireworks would ve a bad idea They were soaking them in drums of diesel and burning them but it was taking too long. Not sure why taking them apart would have been any faster. Feeding them into an incinerator would have been pretty safe assuming they didn't pack enough for it to detonate..hahahaa. The whole operation was in the middle of nowhere and the fireworks stored in an old bunker which was the only 2 things they did right.
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Nov 15, 2017 17:04
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oohhboy posted:They were soaking them in drums of diesel and burning them but it was taking too long. Not sure why taking them apart would have been any faster. Feeding them into an incinerator would have been pretty safe assuming they didn't pack enough for it to detonate..hahahaa. Fireworks seem the simplest possible thing to get rid of. One match and the problem is solved. You even get a fun show to enjoy.
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Nov 15, 2017 17:12
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spog posted:https://www.theguardian.com/uk-news/2017/nov/15/recycling-company-apologises-after-trial-over-shredder-death There's a term for the condition of the body afterwards: morselized. 
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Nov 15, 2017 17:20
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I would expect taking apart fireworks to have something to do with them being indeterminately old (so can't guarantee they'll blow up from normal use) and full of who knows because of the salts and metals used to color the discharge. You can run across exhaust emissions issues really fast if you aren't 100% sure what you're burning
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Nov 15, 2017 17:21
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Just dig a huge hole, throw all the fireworks in, stick a tube down and cover it all up with dirt, then toss a match down the tube. Maybe I should go into the bomb disposal business.
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Nov 15, 2017 17:26
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spog posted:Fireworks seem the simplest possible thing to get rid of. That was literally the first thing I thought that would have been safer since anything else would be safer. When the video got to the bit about the drums being too slow I though "Why don't they get a couple big garbage skips?" to leverage economies of scale. zedprime posted:I would expect taking apart fireworks to have something to do with them being indeterminately old (so can't guarantee they'll blow up from normal use) and full of who knows because of the salts and metals used to color the discharge. You can run across exhaust emissions issues really fast if you aren't 100% sure what you're burning Representative sampling would have been enough. But the plan was take them apart one at the time. I don't think pollution, gassed or killed was a concern they had if they had any. Mozi posted:Just dig a huge hole, throw all the fireworks in, stick a tube down and cover it all up with dirt, then toss a match down the tube. Might detonate from being confined like that. Open pit with a roof for shrapnel. Dig/cover remains to dispose of pollution.
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Nov 15, 2017 17:31
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oohhboy posted:That was literally the first thing I thought that would have been safer since anything else would be safer. When the video got to the bit about the drums being too slow I though "Why don't they get a couple big garbage skips?" to leverage economies of scale.
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Nov 15, 2017 17:56
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Pigsfeet on Rye posted:There's a term for the condition of the body afterwards: morselized. I prefer homogenised. As in Industrial Mouse homogenizer.
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Nov 15, 2017 17:59
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haveblue posted:I think it's saying more that a child of that size and in that relative location didn't trip the truck's sensors. And/or that the automated systems are programmed to not cause a full emergency stop in the event of a small animal running in front of the truck. That the small animal happens to be human isn't something the system could be reasonably expected to identify.
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Nov 15, 2017 18:07
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oohhboy posted:Open pit with a roof for shrapnel. Dig/cover remains to dispose of pollution. People died doing that too, they mention that in the video.
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Nov 15, 2017 18:56
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https://www.youtube.com/watch?v=qc_z4a00cCQ&t=71s
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Nov 15, 2017 19:13
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Sigourney Cheevos posted:People died doing that too, they mention that in the video. Crap, I guess I missed it. Still better than incinerating the entire crew. Then there was the EOD disposing explosives by explosion in an air base that got someone killed.
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Nov 15, 2017 19:46
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Avenging_Mikon posted:Dude had better reaction times than a computer. I think his reaction time was probably a negative number - he saw the bus, put his foot on the brake, and stared at the back corner of the bus as his speed gradually came down. He was already braking, his reaction was quantitative (apply more pressure) rather than qualitative (move foot to pedal) when his cynical / heroic mind saw the first hint of motion. Still absolutely awesome, though. Volvo should put him in a simulator for a month and have their computer learn everything it can from him.
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Nov 15, 2017 20:37
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oohhboy posted:Crap, I guess I missed it. Still better than incinerating the entire crew. Fragmentation from steel base plates is no joke. Frontal-and-overhead protection is mandatory for a reason. http://nation.time.com/2011/03/09/monumental-air-force-fragmentary-stupidity/ As for fireworks, disposal by setting them off as intended is sketchy. You don't know the condition/quality of the explosives; They may not go off as intended, or go off in ways less safe than the burning or detonation methods used by most folks. edit: fixed link. ChickenHeart fucked around with this message at 22:02 on Nov 15, 2017 |
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Nov 15, 2017 21:08
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Re: fireworks disposal, you need to think outside the explosion. Put them in a barrel, push the barrel off the side of a ship. Now it's the ocean's problem.
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Nov 15, 2017 21:23
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Yes, it's like a lava lamp.
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PittTheElder posted:Re: fireworks disposal, you need to think outside the explosion. Put them in a barrel, push the barrel off the side of a ship. Now it's Poseidon's problem.
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Nov 15, 2017 21:27
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ChickenHeart posted:Fragmentation from steel base plates is no joke. Frontal-and-overhead protection is mandatory for a reason. Your link is broken, dude.
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Nov 15, 2017 21:29
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http://nation.time.com/2011/03/09/monumental-air-force-fragmentary-stupidity/
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Nov 15, 2017 21:29
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PittTheElder posted:Re: fireworks disposal, you need to think outside the explosion. Put them in a barrel, push the barrel off the side of a ship. Now it's the ocean's problem. an old classic https://www.youtube.com/watch?v=HY7mTCMvpEM
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Nov 15, 2017 21:30
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The gently caress is with that pseudo-star-wars text bullshit at the end?
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Nov 15, 2017 21:33
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Jeoh posted:
Budget cuts are hitting hard 
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Nov 15, 2017 22:15
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PittTheElder posted:Re: fireworks disposal, you need to think outside the explosion. Put them in a barrel, push the barrel off the side of a ship. Now it's the ocean's problem. Static-inducing container; steel ship; you've just sent those underpaid workers to a watery grave, young man.
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Nov 15, 2017 22:17
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ExecuDork posted:I think his reaction time was probably a negative number - he saw the bus, put his foot on the brake, and stared at the back corner of the bus as his speed gradually came down. He was already braking, his reaction was quantitative (apply more pressure) rather than qualitative (move foot to pedal) when his cynical / heroic mind saw the first hint of motion. Sure, but I think the filming driver was flashing lights and honking as well, which probably helped to alert the driver early. Also, it's common in driver's ed in Norway to teach keeping your foot on the brake when passing anywhere near a bus, because of exactly this kind of situation. Lots of narrow roads and dumb pedestrians. I very nearly failed my driving exam for passing a stopped bus too quickly, in a very similar situation.
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Nov 15, 2017 22:26
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Platystemon posted:I agree that it’s unlikely to slash or impale any particular person dude driving on the interstate while trying to pass an 18 wheeler that's skirting the road lines with those loving spikes is one of the most nervewracking things
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Nov 15, 2017 22:33
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Three-Phase posted:Look just be glad you don’t need to install the stuff we had at work (5kV 500kcmil armored triplex). That cable has about the same diameter as a small coffee can. (That’s more under NESC - National Electrical Safety Code for high voltage installations.) At the base I'm analyzing now there's two feeders with three sets of armored triplex 500mcm at 12.47kV going from a substation switchgear to a separate switchgear. They have their own dedicated duct system. Looks hilariously overstuffed for just two feeders. Pander fucked around with this message at 22:38 on Nov 15, 2017 |
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Nov 15, 2017 22:36
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This was actually good for the environment. The lake is naturally alkaline, but runoff from agricultural irrigation raised the level of the lake and diluted it. The sodium disposal pushed the lake’s chemistry something like 1% in the right direction, IIRC.
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Nov 15, 2017 22:42
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Nov 15, 2017 22:56
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H̵̞̥̤͇͓̖̤̮̃̾̈͌́͘͞Ȩ̨ͣ̇ͤ̾̑̃̒ͬ̐͋̇̈͟͏̪̪͓͙̮̭̦̦̩̘̙̗̤̣ͅ ̹͔̩͙͍ͪ͑̅ͮ̆ͥ̃͡Cͮͫ̐̓͒͏̶̶̶͓̪̹͕̮̫͉̟͎͙͎̦̠͜Ọ̲̥̲͎͚͉͈̼͓̈́͒͊ͭͮ̋͝M̸̨̭̳̫̞̿ͨ͌̆̈̓̒ͭ̿͋̔ͭ͋͒̀E̸̡̮̦̬̺̼͙̓̓̆̌̈ͭͨ̑͘ͅS̶̶̛͙̘̩̖̰̤̰̼̤̺̗̰͕̖ͩ̇̒ͣ͌́ͅ
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Nov 15, 2017 23:07
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Jeoh posted:
I'll be honest: I'm over the moon that they finally found a company to make a video about whose internal processes weren't absolute garbage, which apparently knew what it was doing, and which appeared to care for the wellbeing of the staff. I clicked expecting "Workers were paraded into a giant electrified hamsterwheel to keep the coolant pumps operating, because right-to-work-state-that's-why, and then water levels rose and zapped them all". Instead got treated to competent decisions and sound thinking.
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Nov 15, 2017 23:52
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ITS ALIVE
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Nov 16, 2017 00:20
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My rear end in a top hat felt like that when i was racing home to take a poo poo.
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Nov 16, 2017 00:21
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im guessing it's the entrance to a ponton bridge or pier that has been (badly) repaired?
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Nov 16, 2017 00:56
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Synthbuttrange posted:Budget cuts are hitting hard Still has that soothing narrator though. More is less when it comes to safety and training videos- they clearly and consicely got the message across and they don't need to make it look like a Michael Bay film.
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Nov 16, 2017 01:56
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Pander posted:I'm guessing nuclear plant safety class? Emergency 4160 or something? 3x 500kcmil at 12.7kV - pretty decent bit of power. I shot from the hip here - 35MVA? (35 megawatts at unity power factor) The one very important thing about these HV cables is that for runs in a plant between equipment, the cables have to be armored and the conductors shielded. However once you are inside a piece of equipment, like a transformer, switchgear, or motor splice compartment, you can use unshielded cable. It’s basically just a conductor surrounded by very thick rubber. The problem is that the unshielded conductors must be routed and treated as if they were bare since they don’t have any shielding. That means, ideally: - One cable must not touch another cable - One cable must not touch the side of a cabinet I’ve seen multiple instances when working on equipment modifications and upgrades where HV cables were touching the side of the switchgear and there were these strange “burn marks” on the paint - we suspect corona discharge. Eventually the insulation will fail and you will get a phase-ground fault to the cabinet. A couple of years ago we had a fault inside a switchgear. Small 10kV cable (like the ones for a neon sign) going from the potential transformer high-voltage fuses to the potential transformer (used to measure the bus voltage) sort-of vaporized. The wires were gone and in the cabinet we found burn marks and shredded outer jacket. There was a short (corona suspected) and the copper just vaporized. The high voltage fuses blew so that limited the physical damage. The floor guys said there was “a loud pop”. Three-Phase fucked around with this message at 03:14 on Nov 16, 2017 |
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Nov 16, 2017 03:02
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Forgot to post this awhile back. These littler Merlin-Gerin breakers are rated to interrupt up to 10,000 amps of current. This is what can happen to a circuit breaker if you exceed the interrupting capability: https://youtu.be/9_KrpSM1qZU It’s the electrical equivalent of shooting a bulletproof vest with a fifty-caliber. (To be fair with a capacitor discharge that is DC which is much, much harder for a breaker to safely interrupt than AC.) Three-Phase fucked around with this message at 03:22 on Nov 16, 2017 |
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Nov 16, 2017 03:20
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Collateral Damage posted:I really don't get why they were storing and keeping the black powder. If the goal was disposal, why not just burn it off continuously? Burning a handful of black powder at a time is (mostly) harmless. Storing a barrel full of it is just asking for a fatal explosion. What I wanna know is why they didn't use the built-in mechanism for getting rid of fireworks and just put on a hell of a show. Or just soak 'em longer. Or ask literally anyone who had ever had to do this before how they went about it. Keiya fucked around with this message at 03:26 on Nov 16, 2017 |
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Nov 16, 2017 03:21
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Three-Phase posted:3x 500kcmil at 12.7kV - pretty decent bit of power. I shot from the hip here - 35MVA? (35 megawatts at unity power factor) I mostly deal with ampacity (distribution studies focused on ampacity, short circuit, arc flash, and coordination) so I more care about its derated ampacity of 870A. The most any one feeder on that circuit had ever drawn was about 250 amps. I think that's about 18 MVA at unity (actual pf around 0.90 in the summer). quote:A couple of years ago we had a fault inside a switchgear. Small 10kV cable (like the ones for a neon sign) going from the potential transformer high-voltage fuses to the potential transformer (used to measure the bus voltage) sort-of vaporized. The wires were gone and in the cabinet we found burn marks and shredded outer jacket. There was a short (corona suspected) and the copper just vaporized. The high voltage fuses blew so that limited the physical damage.
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Nov 16, 2017 03:41
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