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Wedemeyer posted:Wow that's like the seventh woman stuck in an elevator in china. Linked Article posted:The property managers told the Beijing Youth Daily that the elevator cab was returned to the first floor and taken out of service after workers had “confirmed” that no one was inside. But police investigators said workers simply shouted to check whether anyone was inside and did not open the cab to perform a visual inspection, the news magazine Caixin reported. 
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Mar 7, 2016 06:08
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Sammus posted:I can't speak for OSHA, but I can for MSHA violations. And the answer is yes. The majority of violations will be little things that can be fixed in under an hour, and they will be. Then you get some fines that are pretty serious, but the company will fight tooth and nail to not pay. Then if you're really unlucky you get some massive fines that can shut the entire place down until it gets fixed. I can speak to the OSHA violations based on job experiences with larger government contractors over the past 15 years. It's quite common to get hit with multiple violations. I'd be more surprised if someone got away with fewer than 20 of them. OSHA has many finely grained violations and categories. That makes it really easy for an inspector - who is there for just that reason - to find something, anything, pretty much anywhere. The few OSHA inspections I can remember always resulted in 35-100 violations. That's for rather large working environments, though - several hundred square miles big and a few thousand workers. An inspector would only pick one building/job site at a time, though. The attitude is this: Pretty much anything can be made even safer. Or at least more tedious.
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Mar 7, 2016 19:58
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H110Hawk posted:http://loweringthebar.net/2016/03/has-your-boss-ever.html This is amazing. From the questioning of the boss, it seems clear that 'fireable offenses' are anything that the Boss has not done himself. "Not-fireable offsenses", on the other hand, are clearly all poo poo he's done before. Setting fires on purpose? No biggie. Small explosions? Don't worry about it. making GBS threads in a co-workers lunch box? Look, these pranks happen literally everywhere. making GBS threads in the direction of a co-worker during field work? It might be fireable, but only if it goes on for a while. Not properly communicating with the boss about those explosions? YOU'RE FIRED!!!
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Mar 7, 2016 21:12
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suffix posted:I saw this in another thread and just want to commend their safety conscious conduct. They should be under fume hoods for soldering. Lady in the green shirt is terribly under-dressed for the job. I don't see ground planes and/or wrist straps. 5/10 Edit: quote:Also they are holding the hot metal part of the iron. lol how did I miss that. 2/20 TotalLossBrain fucked around with this message at 03:58 on Mar 8, 2016 |
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Mar 8, 2016 02:51
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ghostter posted:i used to hotbox a room wih a couple guys soldering for hours on end with no ventilation and a broken ac in a tiny room th e middle of a kids ride called boo blasters listening to the spooky music and screams of kids through the wall. i would emerge from it and a crowd of 100 ppl and kkids would stare at me stumble across the 600v tracks with my tool kit and wink at wendy at the exit. i wouldnt wink if it was anyone else the rest werent sexy. I wasn't commenting on the goodness of requiring fume hoods for soldering, only that it is indeed required. I used to teach Electrical Engineering classes at a local state university campus. We have had to eliminate all soldering from classes/labs because getting fume hoods was impractical/too expensive.
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Mar 8, 2016 20:23
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Phanatic posted:I can't find anything supporting this as a requirement. There are requirements for maximum allowable concentrations of things like lead, toxic fumes, etc., and you might need to have a fume hood or other ventilation to keep the concentrations below that limit, but I don't believe fume hoods are a requirement. Now that you mention it, I don't know if it is an OSHA requirement. Every place I've worked for in the past ten years made it mandatory to have some active ventilation directly at the soldering station. Those employers have been private industry, a state school, and a government contractor-ran National Laboratory. At the state school, I saw the transition from "safety googles only" to "we don't have fume hoods, no more soldering" happen around 2010.
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Mar 8, 2016 21:05
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Manifest posted:Saw this on campus the other day, I thought this thread would enjoy it. What's the problem? (Other than those boards knocked into the water?) The genset is sitting on a fuel tank. It's not a problem for the tank to be in contact with water, but it shouldn't be a permanent thing. Also, what is that blue thing being held down by sand bags?
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Mar 11, 2016 02:04
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JB50 posted:Im guessing its all a walkway for someone to open the panels and look at stuff inside the generator. In which case they probably turn off the power to it (or not). There shouldn't be any power to it in most situations - it's a backup generator. The only power source may be a 12V or 24V battery. Line voltage is upstream of an automatic transfer switch.
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Mar 11, 2016 02:08
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JB50 posted:Dont they usually have a line coming in so it knows when the power goes out to turn on? Yes, that's part of the ATS, which I haven't seen as part of the genset. The ATS or genset starter circuit should definitely be locked out if it will be worked on.
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Mar 11, 2016 02:21
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FIRST TIME posted:Does it really matter what's in that cabinet? It's OSHA alright, just probably not for electrical reasons. Someone doesn't want to get their feet wet.
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Mar 11, 2016 02:36
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Gorilla Salad posted:I swear there used to be a bunch of images going around the web of some sort of junction box which was literally crammed full of snakes having a snake orgy. Some kind of mud wasp? Similar to mud daubers, my favorite OSHA bug. Bit of a backstory: The Hanford site in Washington State is where all plutonium production happened in the Cold War years. As you might expect, the place is a mess of a radioactive wasteland. Very expensive cleanup has been going on since the 90's. Something the cleanup people are working with are 'fixants' - they affix contamination onto a surface. Say you have an underground valve pit for radioactive waste and it has radioactive dust all over everything. Trying to clean it (well) in place is crazy, so you spray a fixant on it. Sometime in the mid/late 90's, a new fixant was looking very promising. It kept contamination levels down and was easy to apply and work with. A few months after first use, however, stray bits of radioactivity were picked up in the nearest town, Richland, which is about 15 miles away. This increased over the summer. After some sleuthing, the culprit was found to be the mud dauber wasp. The new fixant contained glucose and the mud daubers took a liking to it. Then they'd spread out and build nests elsewhere. After a few months, they had finally gotten far enough away to be noticed. The contamination was cleaned up and a different fixant used.
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Mar 14, 2016 06:20
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The contamination problems at Hanford are usually tied to tumbleweeds (because they have very deep roots in an early part of their life cycle and suck a lot of nasty out of the ground), mice (because they eat everything), rabbits, and wasps. Every animal that is killed on the reservation - over 550 square miles - is brought to a lab to be autopsied, stored, and eventually disposed of at the local rad waste processor. There's a herd of elk nearly 1,000 strong on site. They get hit by cars regularly. I worked on site for a few years. It was the most miserable work experience I've ever had. Everyone is a WASP with conservative mindset. While sucking on the government teat, it's quite amazing. I am glad I got out of there.
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Mar 14, 2016 20:54
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Hah, I didn't notice that when writing it. To be fair, the middle-aged white guys are really good at tracking contamination everywhere. In 2004, I watched Bill Nye being made to take off his pants because an HP (Health-Physics tech, deals with radiation & contamination) detected a speck of contamination on it after he tried exiting the refueling floor at the Columbia Generating Station nuclear power plant. He was doing recording for some future show.
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Mar 14, 2016 23:28
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Here's a great read with regards to criticality accidents. The term refers to a situation in which the neutron balance in a nuclear material is severely out of whack, in a very bad way - more neutrons produced than neutron absorbed, leading to an uncontrolled chain reaction. Usually the reaction will fizzle out because the geometry gets blown out (literally) or some neutron poison is introduced. If the criticality is energetic enough, it will produce Cherenkov radiation. It's like a sonic boom, but for energetic particles. The particle in question will travel faster than the phase velocity for the medium it is traveling in. If you see it, you're likely going to die. This is what killed Harry Daghlian in 1944 and Louis Slotin in 1945, likely the very first radiation victims of nuclear weapons. Anyways, it's a great and ghastly read. E: I probably got Cherenkov details all wrong, as pointed out by helpful goons below. TotalLossBrain fucked around with this message at 01:35 on Mar 15, 2016 |
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Mar 15, 2016 01:18
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haveblue posted:If nuclear materials are submerged in more than a few feet of water, you can stare at the cool blue glow all day with no problems. I should have added "without a few feet of water shielding". But then again, I messed up the details about it anyhow. TotalLossBrain fucked around with this message at 01:36 on Mar 15, 2016 |
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Mar 15, 2016 01:31
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Here's a nice OSHA. For reference, the kid is about 5'9"-5'10". I guess it's fine, but I've certainly never seen a pole that low to the ground before. 
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Apr 11, 2016 23:56
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The rail line is actually in the drop behind the pole.
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Apr 12, 2016 06:48
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fyodor posted:That's interesting about getting separated from your formation but how does that even happen when they are so close to each other? The mysteries of flight are unknowable!! Not sure if you're being serious or facetious, but here are a few reasons why formations separated. 1. They were long flights with hundreds of planes taking off from multiple airfields over several hours. They would meet at pre-determined rendezvous points. Now consider that radio silence and no lights were often required and navigation happened via manual instruments and you start realizing how tough it is to actually keep the formation. 2. Multi-engine planes (like all or nearly all WWII bombers) could develop trouble with one or more engines and start falling back. Or a landing gear wouldn't retract fully or the gear doors don't close - not enough to abort perhaps, but certainly enough to fall out of formation. 3. Bombers taking off from Britain had a fighter escort for only a short while. During much of their flight over the continent, they were unprotected except for by their on-board weaponry. Attacks by German fighters or FLAK could damage a plane enough to take it out of formation, but not enough to cause a crash.
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Apr 19, 2016 19:12
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El Gar posted:How long till all the hydroelectric dams break open? That probably depends a lot on when in the year people disappear. If the spill gates are fully open, they might last a while. If they are closed, the first decent spring melt will overflow the dams and cause rapid erosion over the top. *Not a dam engineer.
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Apr 21, 2016 23:28
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Gabelstapler. Fork-stacker, really.
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Apr 28, 2016 20:16
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That's a pretty common setup. Some are single bolt, some are dual. The singles are easier to adjust.  vv Both pieces somewhat interlock with ridged surfaces. So when that single bolt fell out, there was probably enough holding force there to prevent wiggling and tipping you off. Instead, it waited and bucked you off. 
TotalLossBrain fucked around with this message at 22:35 on Apr 28, 2016 |
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Apr 28, 2016 22:20
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The Locator posted:Today's safety lesson - you should actually maintain your bicycle periodically, including checking tension on critical fasteners. No, let's go with a Huffy instead. For safety.
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Apr 28, 2016 23:32
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EugeneJ posted:Shoving an egg up your rear end and getting it back out without breaking it should be an olympic sport No it shouldn't.
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May 3, 2016 05:17
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I like that Piasecki has that project on their website, but makes absolutely no mention of what happened. In fact, they seem to continue to swoon over it? http://www.piasecki.com/heavylift_pa97.php
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May 10, 2016 17:32
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Hot Karl Marx posted:lol shut the gently caress up. When poo poo goes wrong, who dies? The operator, so yeah, i think its in our best interests to know what is going on. If you were smart you would know the people pushing operators to cut costs and use short cuts are the management cause we get paid by the hour and don't care how long things take. Stop acting like your 10x as smart as the the people operatering the equipment cause you guys don't have to to maintenance or repairs either and that poo poo is designed by a retard most of the time. osha.txt Hubis posted:In what situation would knowing how far above the maximum load rating the ideal failure point was be useful? When operatering the equipment.
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May 11, 2016 15:26
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That's quite the wake.
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May 12, 2016 14:53
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Karma Monkey posted:What is that? Wires that were seriously nicked by the dumbass stripping the insulation off it. A very likely point of failure in the near future, especially if that set of wires experiences any motion. And then you have live conductors just having off into space. Edit: Also it looks like one of them doesn't even go into the terminal block and stops just short of it.
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May 12, 2016 15:27
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Phanatic posted:Skin depth in copper at 60 Hz is almost a centimeter. All that wire is carrying current. 8.4 mm to be exact (depending on a couple complex factors). So a wire can be almost 3/4 inch thick and most of it will be carrying current. However, the pictured wires are stranded, not solid. Each strand is its own solid wire, but much smaller than 8.4 mm. So really the whole wire is carrying current, regardless of how thick the bundle is. 
TotalLossBrain fucked around with this message at 22:56 on May 12, 2016 |
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May 12, 2016 22:53
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Phanatic posted:It's for sufficiently-low values of "nuclear waste" and "emergency evacuation." No released contamination/activity has been detected. Tunnel with old contaminated poo poo collapsed. That's pretty much all. I imagine they'll put a couple tons of dirt on it and worry about it later. There isn't any nuclear material in those tunnels. They are these old railroad tunnels that were built next to a giant radiochemical processing plant. Whenever they'd have a bunch of hot equipment (contaminated), they'd shove it into these tunnels. They're a few hundred feet long and very shallow.  Circled is the entrance to the tunnel. I've seen various news comment sections worry about the jet stream spreading untold amounts of radioactive doom all the way to Massachusetts. It's hilariously dumb. DOE Update: quote:As we noted in an earlier CNS message, the Hanford Site’s 200 East Area is under a take cover after an Alert was declared. Here’s an update from Hanford at 10:37: Edit: Pic of tunnel and collapsed area: https://twitter.com/AnnaKingN3/status/862025311713501184 TotalLossBrain fucked around with this message at 20:30 on May 9, 2017 |
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May 9, 2017 20:06
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DirtRoadJunglist posted:It's probably nothing to be alarmed about in the moment, but it does give us yet another example of a Hanford structural fuckup. That place is a disaster waiting to happen, though the worst that could probably happen is a major release of radioactivity into the Columbia River. They've already had problems with waste meeting groundwater in some of the underground storage facilities. And insects. Wasn't it ants carrying radioactivity around the city some decades ago? Mud wasps - and I am pretty sure that was the only incident like that. Occasionally techs find contaminated tumble weeds, rabbits, and rats. But that's pretty rare. The single shell tanks have been past their design life for decades. The double shell tanks are just now passing their design life span and at least one of them has started leaking. Groundwater movement to the river is very well monitored. The existing contamination of the Columbia didn't come from leaking tanks. It was a result of operating a bunch of plutonium production reactors with open-loop, single-pass cooling from the river.  14k curies released each day in the heyday of operations.But you're right - the tanks are falling apart with the vitrification plant still at least a decade from operating. And even when it starts, there's no guarantee it will work. There are some, umm problems.
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May 10, 2017 00:25
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Phanatic posted:Sorry, that's nonsense. He was the governor of Texas, where Pantex is located, you can bet the governor of the state where our nuclear weapons are actually manufactured is aware of the DOE's role in that. The very day he was nominated, he stated that he was eager to "safeguard our nuclear arsenal." What you're referring to was a false story, a claim from an unnamed source with nothing to back it up and plenty to contradict it: There is a whole lot more to DOE's nuclear role than weapons, which is what Pantex is (which is also still active, another rarity in the DOE complex). The far larger part is cleanup and remediation at former sites all over the country. From what I've seen (local media, internal memos), he knew zilch about that part of DOE's mission. However, he seems eager to learn about it and doesn't seem to be doing as badly as the rest of Trump's picks, so there's that. Not that it's a high bar to clear. TotalLossBrain fucked around with this message at 03:31 on May 10, 2017 |
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May 10, 2017 03:23
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SniperWoreConverse posted:yeah but wouldn't it have only needed to get keyed in once and then be ok? I mean obviously not because it blew the gently caress up, but I would have thought after the first time it would be fine. Opening the breaker is like putting the transmission into neutral but the motor is still going. And now that it's unloaded it will speed up quite a bit. A single degree of phase difference corresponds to just 46 microseconds. As the Wiki article notes, the only reason it took 3 minutes to blow that 2.25 MW genset was that they stopped after each open/close cycle to briefly assess damage. Had they not paused the whole thing would have been over in seconds. I work in the field and know/have worked with the guys who ran that attack.
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Sep 9, 2018 05:50
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Groda posted:This can't possibly be universally true. Enercon's ring generator turbines have all those poles to run closer to 50 Hz. The reason for Enercon's high number of poles is the gearless design. Other wind turbines uses gearboxes to bring the generator speed up higher than the blade speed. Generally speaking, you want to drive a generator at a decent speed. If you're turning a generator slower, then having a higher number of poles is a good thing. But gearbox or not, wind turbines do not operate at a fixed speed (very well). They operate within a fixed range of wind speeds which turn the rotor at different speeds. The output from this is DC. Big semiconductor inverters turn that back into grid-frequency AC.
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Sep 9, 2018 20:55
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Responsible firearms owners, no doubt. Something caught my attention in the article: quote:The remote area, 160 kilometres from Seattle, is close to land in Oregon where armed anti-government activists seized and occupied the wildlife refuge headquarters for more than a month. The two areas are over 400 miles/ 650 km apart, or 7 hours of driving
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Sep 11, 2018 21:55
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The only thing that article really says it's that the hunters denied shooting at firefighters and that they were instead repeatedly shooting at bears and kept missing. Imo there is no conflict between the first and second article.
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Sep 11, 2018 22:37
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Relentless posted:Here's a bit more balanced article: Eh like any Yakima county official is going to do anything about good ole boy stuff lmao Qualifier: I live a couple counties over and that county is as redneck as it gets.
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Sep 12, 2018 00:18
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Synthbuttrange posted:http://www.abc.net.au/news/2018-09-25/old-ammunition-explodes-after-being-collected-on-nsw-beach/10301674 I do not understand why people do this poo poo. I'm reading a book about the X-15 plane right now and it has a short section in it about a guy finding an old 88mm shell and keeping it around on his farm. Some time later he and another guy are working on a fence and they only have one hammer. So, guy goes looking for a suitable object to substitute for a hammer and starts hammering on the fencing nails with an old, unexploded artillery shell. Of course it goes off, maiming both of them terribly. Just....WHY? What about "use an old, unexploded shell as a hammer" seems like an idea worthy of consideration?
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Sep 25, 2018 03:24
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I wonder what he expected would happen.
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Sep 26, 2018 17:25
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It'll be like that scene in Contact when Jake Busey blows up the alien teleporter.
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Sep 26, 2018 22:06
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