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Micr0chiP posted:Not osha because it was in my home but my small triple outlet, that is connecting 2 power strips (3 outs+4 outs) started sparkling and melting, im glad i was awake and heard the sparkling or else things could get ugly. Let me make sure I understand this. You used an adapter that turns one outlet into three outlets. You then plugged two power strips into that adapter, turning one outlet into eight outlets total. I then assume you plugged up to eight things into those outlets. You're lucky your whole house didn't burn down because you overloaded the circuit. You buffoon. You absolute president. You complete fool.
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Dec 19, 2020 03:33
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Sentient Data posted:How can you test them aside from intentionally creating an overload? Even "just" creating a short with a fused connection that has a slightly higher rating than the breaker still seems super unsafe The breaker can be removed from circuit for testing.
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Dec 19, 2020 03:50
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vortmax posted:Let me make sure I understand this. You used an adapter that turns one outlet into three outlets. You then plugged two power strips into that adapter, turning one outlet into eight outlets total. I then assume you plugged up to eight things into those outlets. While you shouldn't plug multiple adaptors into each other, I doubt they overloaded the circuit, it was probably all small loads totaling far less than the circuit's rated 1440 watts. Speaking of, lovely cheap adaptors will 100% turn themselves into piles of slag with only a few hundred watts power under a high resistance connection, far less than the trip setpoint of the circuit breaker. An AFCI would theoretically have detected and stopped this condition, but that's not guaranteed. If you have a bunch of poo poo to plug into one outlet I would recommend purchasing one high-quality power strip that meets your requirements. NEVER plug a space heater into a power strip, adapter, or extension cord, those will burn those piles of poo poo up quick fast and in a hurry. Platystemon posted:The breaker can be removed from circuit for testing. An electrician's probably just going to replace the breaker, given the cost of labor vs parts here.
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Dec 19, 2020 04:22
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Elviscat posted:An electrician's probably just going to replace the breaker, given the cost of labor vs parts here. I was going to say that the entire panel can be repopulated for less than the callout fee, but those plugs look to be from a land where RCDs, where present, are built into breakers. Those are more expensive.
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Dec 19, 2020 04:37
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Yeah, I thought it looked Euro but not British, it's hard to tell with all the melty bits.
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Dec 19, 2020 05:27
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Daisy-chaining plugs means you're adding more high-resistance connections in between the house wiring and the actual load, so even if all the things you're plugging in combined don't nominally exceed the circuit rating, the extra resistance can mean that they're seeing less voltage than expected, and pulling more current than they nominally would. Those triple-plugs are especially dubious because, while a power strip will have a fuse to ensure that the combined loads aren't exceeding the rating of the power strip, the triple-plug typically has nothing at all to protect it if the loads you're plugging into it combine to exceed the plug's rating. They're a bit of a safety disaster in they're own right, but you're really just asking for it if you daisy-chain other stuff off them.
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Dec 19, 2020 05:37
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EvenWorseOpinions posted:Related, recip planes occasionally have the cabin air heat exchanger crack and let exhaust directly into the cabin. “Cabin air heat exchanger” is a hilariously fancy way of saying “shroud over the exhaust manifold.” Also, the potential danger of cracked manifolds letting CO into the cabin pales in comparison to the alternative, the Janitrol combustion heater. Those things give me the willies. All the CO danger, plus it’s a fuel line run directly into the people compartment!
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Dec 19, 2020 05:54
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MrYenko posted:a fuel line run directly into the people compartment! This is an Australian car from the early 60s. Lightburn Zeta posted:There was also no fuel pump. The Lightburn Zeta relied on a gravity feed instead. The tank was located behind the dashboard. There was no proper fuel gauge either. A bypass in the gravity feed directed fuel to a clear tube in the dash that indicated how much fuel you had, assuming you were on level ground The tube was glass, by the way.
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Dec 19, 2020 06:23
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A good old fashioned sight-glass, nothing wrong with that, tried and true system.
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Dec 19, 2020 06:27
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The Trabant was gravity fed, but at least the tank was under the bonnet.
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Dec 19, 2020 06:33
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Dec 19, 2020 06:40
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kazmeyer posted:Oh, Jesus, that reminds me of a story. Oh god, working around aviation I'm dreading the day I eventually have to take high altitude training. Almost as much as the underwater egress training that's coming once normal travel and stuff are generally safer 
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Dec 19, 2020 06:43
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Elviscat posted:NEVER plug a space heater into a power strip, adapter, or extension cord, those will burn those piles of poo poo up quick fast and in a hurry. Speaking of space heaters and power strips, if you haven’t seen the CPSC Twitter account, it is a hell of a thing for a US government agency: https://twitter.com/uscpsc/status/1339633133285720064
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Dec 19, 2020 06:45
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A true welders tool
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Dec 19, 2020 06:45
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So this was the earliest Omni-Tool in the Mass Effect universe. A pipe wrench/hammer/screwdriver/socket set. Plenty of room for a pry bar on there somewhere, maybe that's the next phase.
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Dec 19, 2020 06:54
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Micr0chiP posted:Not osha because it was in my home but my small triple outlet, that is connecting 2 power strips (3 outs+4 outs) started sparkling and melting, im glad i was awake and heard the sparkling or else things could get ugly. Why didn't you know this was a bad idea? Not trying to insult or attack you, just curious. The whole situation with these and daisy chaining them causing a fire is a trope that has been in TV and movies my whole life. Any lazy writer needs a house fire and it's either this or a lit cigarette. Lots of fire safety PSAs mentioned this as a kid. So I thought it would be common knowledge. Did you never see that stuff or just dismiss it as TV magic, or just not take it seriously? Or maybe a cultural difference with where you live?
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Dec 19, 2020 08:41
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Elviscat posted:If you have a bunch of poo poo to plug into one outlet I would recommend purchasing one high-quality power strip that meets your requirements. What I don't understand is why the extension cord is not okay but the wall socket is? So the cord adds length and resistance. But why doesn't the wall socket's wiring? They can't make thicker cords that would be okay? (Or maybe they do and they're expensive?)
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Dec 19, 2020 08:47
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itskage posted:What I don't understand is why the extension cord is not okay but the wall socket is? So the cord adds length and resistance. But why doesn't the wall socket's wiring? They can't make thicker cords that would be okay? (Or maybe they do and they're expensive?) You can get heavy duty extension cords - often they're bright orange, weatherproofed, and have their own built-in RCD, and they're intended for running mains-powered tools on a construction site. Unless you're explicitly going out of your way to get one of those, you don't have one. The big problem is that the extension cord has absolutely no protection to prevent you from overloading it - if you have an extension cord rated at 5A, and you plug a 10A load into it, it'll happily pull way too many amps while the extension cord heats up, smolders, and eventually burns.
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Dec 19, 2020 09:12
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itskage posted:What I don't understand is why the extension cord is not okay but the wall socket is? So the cord adds length and resistance. But why doesn't the wall socket's wiring? They can't make thicker cords that would be okay? (Or maybe they do and they're expensive?) They do, and they're expensive, basically. Heat dissipation rises with the square of current, so putting 15A through a 5A cord is 9 times more heat.
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Dec 19, 2020 09:39
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itskage posted:What I don't understand is why the extension cord is not okay but the wall socket is? So the cord adds length and resistance. But why doesn't the wall socket's wiring? They can't make thicker cords that would be okay? (Or maybe they do and they're expensive?) Like the poster above me, it's kinda generalized advice. You want the minimum number of lovely spring-tension only connections (plug-into-outlet) since each presents more risk. Furthermore, the wall outlet uses a thermoset resin, that's good at staying hard when it gets hot, to hold the spring contacts against the blade (or cylinder) of the male plug, extension cords use a mor malleable plastic or rubber that's more likely to deform and allow those spring contacts to move away from the blade and create a high resistance connection and/or arcing (arcing deposits carbon on the metal contacts, creating a cycle that leads to total failure), the high load and cyclic nature of a space heater is basically worst case scenario for this. Splitter-adapters and power strips range from "good" to "literally criminal" in build quality and plastics construction. Some power strips use heavy gauge wire and industrial outlets, some use hopes, prayers, and an assumption that nothing that draws more power than a laptop will ever be plugged in. If you have the experience to evaluate these factors, then you can decide if you have a an extension cord (etc) that you can plug a space heater into, I have a bunch of 12 and 10 gauge cords for power tools that would easily do the job. I've also replaced a ton of outlets, power strips etc that were burnt to a crisp. To anyone without that experience the advice is just "don't do it" because that's the safe thing to do, and typing out all this nuance takes time and might not be communicated well.
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Dec 19, 2020 09:40
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I'm laughing at that rocky flats nuclear nightmare post because in 2016 I applied to work at the cheapskate company that bought their front office/visitor center building that still exists. During the interview, the owner was showing me all the offices the FBI raided when poo poo went down, and bragging about how cheap he got it. The building was super oversized for the company so there were entire 10-cube farms totally unlit with 1 or 2 employees using lamps in their workspace, yet nobody had rearranged the cubes to be bigger than 6'x6'. It had the exact same feel as the salt mine offices in Portal 2. They were offering $60k for a senior level mechanical engineer. No health insurance, no 401k, no vacation your first year, 1 week for the next 4. I walked away wondering how they had any employees at all, I guess people with low self esteem gotta work somewhere.
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Dec 19, 2020 10:07
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occluded posted:I started an engineering degree this year and have learnt so goddamn much from reading this thread, I love it. https://www.youtube.com/watch?v=TjSxVBW3Vx8 (Yes I know this isn't a steadicam but it should make your butt cheeks clench just the same)
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Dec 19, 2020 10:23
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Nuclear nightmares are great. It's almost 2021 and nobody knows what to do with the waste. In Germany they had the glorious idea to test storage solutions by dumping waste in an old salt mine. A salt mine they knew (but denied) had brine inflow and would start deforming immediately. It was supposed to be storage for low to medium waste, but there's a ton of undocumented waste in there, in disorderly dumps. They used drums which immediately started corroding (brine…) and leaking. The entire site has to be excavated (at taxpayer's expense, naturally). The English Wikipedia article for Asse II doesn't mention (or has been scrubbed of) most of the really damning things, like the 28kg of Plutonium they much later "remembered" they had dumped there, or that they had a "revenue" of 900k by letting the private sector dump their waste there, with cleanup costs estimated to be at least 2 billion, or that the last year of operation when everyone knew it was unsafe accounts for a quarter of all the dumped waste, hastily thrown in and buried and documentation destroyed.
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Dec 19, 2020 11:09
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Dillbag posted:https://www.youtube.com/watch?v=TjSxVBW3Vx8 We bought a Steadicam Merlin and threw it in the bin 2 hours later. Get what you pay for. Humphreys fucked around with this message at 11:45 on Dec 19, 2020 |
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Dec 19, 2020 11:33
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i'd buy one  Antigravitas posted:Nuclear nightmares are great. It's almost 2021 and nobody knows what to do with the waste. nuclear'd be great if it wasn't for the people responsible for it in most cases
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Dec 19, 2020 12:12
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Antigravitas posted:Nuclear nightmares are great. It's almost 2021 and nobody knows what to do with the waste. would you say that Asse II closed due to illegal dumping of radioactive waste?
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Dec 19, 2020 12:21
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If it were illegal, it would've been made legal.
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Dec 19, 2020 12:38
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Antigravitas posted:Nuclear nightmares are great. It's almost 2021 and nobody knows what to do with the waste. Another private-sector success story!
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Dec 19, 2020 12:41
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Whooping Crabs posted:would you say that Asse II closed due to illegal dumping of radioactive waste? Booooo. BOOOOO
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Dec 19, 2020 12:41
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We should dig the fuel out of the ground with a Bagger 288 and dispose of the radioactive waste in the atmosphere, IMO.
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Dec 19, 2020 13:01
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MrYenko posted:“Cabin air heat exchanger” is a hilariously fancy way of saying “shroud over the exhaust manifold.” A little bit more terrifying than the byproducts or precursors to combustion on those; "Two occurrences of failure of the affected heaters prompted this action. In one case, an explosion resulted and the baggage compartment door was blown off the airplane. In the other case, a fire occurred in the baggage compartment while the airplane was in flight.". I seem to recall learning in AP school there being issues of the shroud being breached and sending a a jet of fire into whatever important avionics happened to be nearby in some of the aircraft where the heater was situated in the nose. I didn't think they really used those any more but I haven't ever really worked with recip twins
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Dec 19, 2020 14:55
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Antigravitas posted:Nuclear nightmares are great. It's almost 2021 and nobody knows what to do with the waste. I guess the Germans really still haven't found the final solution to store their waste.
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Dec 19, 2020 15:27
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As a citizen with zero knowlege of nuclear waste management, the only thing I have ever come up with as a foolproof way to dispose of nuclear waste on Earth is to bury it at the edge of a subduction zone. Even if the technology existed to dig that deep in any safe way, the cost would still probably outweight current clean-up protocols...though even then, you still have the waste to deal with.
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Dec 19, 2020 16:25
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So dump it in the ocean. Got it.
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Dec 19, 2020 16:28
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CRUSTY MINGE posted:So dump it in the ocean. Got it. Volcano. I mean, come on.
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Dec 19, 2020 16:32
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Car batteries go into the ocean, preferably into a subduction zone, they'll eventually come back out the mantle through volcanos, and become stars.
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Dec 19, 2020 16:34
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madeintaipei posted:Volcano. I mean, come on. Volcanoes are a product of subduction zones. Subduction zones are in the ocean. Feed nuclear waste to the ocean so the earth vomits it back out a volcano.
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Dec 19, 2020 16:43
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CRUSTY MINGE posted:Volcanoes are a product of subduction zones. Yes, all valid and correct points. The ritual though. I wanna see Job Bluth dispose of nuclear waste. "See? It's gone. I may have committed some light crimes against humanity."
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Dec 19, 2020 17:13
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This whole derail reminds me of the DDT dumpsite off Catalina Island that was reported about recently. https://www.latimes.com/projects/la-coast-ddt-dumping-ground/ Definitely feels like a Bluth blunder.
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Dec 19, 2020 17:33
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Humphreys posted:I guess the Germans really still haven't found the final solution to store their waste. you can’t use the word "Endlösung" any more, so
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Dec 19, 2020 19:56
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