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Which one leads to Mid-World?
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Dec 8, 2019 04:18
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| # ? May 29, 2024 19:05 |
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I'm useless, unwanted windows stacked in the yard.
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Dec 8, 2019 04:36
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peanut posted:I'm useless, unwanted windows stacked in the yard. Those are for the greenhouse, I'm sure.
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Dec 8, 2019 04:43
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What the gently caress. Is this something randomly discovered in a regular home with an amazingly bad install of something? How would that ever happen in the first place? It surely isn't something intentionally built.
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Dec 8, 2019 14:33
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nielsm posted:What the gently caress. 
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Dec 8, 2019 14:44
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Allow me to be the first to say aaaaaaaahhhhhhhhhhhhh!
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Dec 8, 2019 14:50
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I assumed that was intentionally fabricated for some sort of test or report purpose, because I couldn't even imagine it occurring in the wild. 
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Dec 8, 2019 15:07
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I'm trying to imagine how I'd phrase myself in the call to the emergency services. Electrical short circuit, glowing red hot gas line, imminent water heater explosion and death of everyone in the house shrapnel radius. Where would you even start?
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Dec 8, 2019 15:44
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Megillah Gorilla posted:I'm trying to imagine how I'd phrase myself in the call to the emergency services. What amazes me is the inspector took a picture. I feel like I would be more looney toons style ran away zoom lines and my 911 call would involve equal parts screaming and the words minimum safe distance. I know it's "stable" in that without air it won't ignite, but so is old crystallized tnt so long as it never experiences a shock.
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Dec 8, 2019 15:50
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The third tweet down gives the picture source, it's from the homeowner before she called emergency services. ENERGIZED NEUTRAL EFFECTS ON CORRUGATED GAS SUPPLY LINES Apparently her home got the neutral energized.
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Dec 8, 2019 15:53
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Hot gas flows super smooth.
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Dec 8, 2019 16:25
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Megillah Gorilla posted:I'm trying to imagine how I'd phrase myself in the call to the emergency services.
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Dec 8, 2019 16:35
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MRC48B posted:The third tweet down gives the picture source, it's from the homeowner before she called emergency services. This kids is why you don't play with unfused sources. That includes her first noting a "shower of sparks" raining down from her service line. Forget the main breaker, I repeat my statement about looney toons zoom lines.
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Dec 8, 2019 16:43
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My Lovely Horse posted:"Turn off the main breaker" makes a solid case for itself. For a bit more Ahhhhh!!! that would have limited impact on this because: MRC48B posted:Apparently her home got the neutral energized.
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Dec 8, 2019 16:49
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My Lovely Horse posted:"Turn off the main breaker" makes a solid case for itself. In this case, with neutral shorted, that's not gonna help 
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Dec 8, 2019 16:50
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Basically, take wooden-handled lob shears to the service drop to save your house* *don't do this
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Dec 8, 2019 17:39
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Ornamental Dingbat posted:Hot gas. Plasma powered hot water heater.
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Dec 8, 2019 18:08
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You know, I'm still ok with Norway's weird "two or three live phases to the wall, no neutral, provide your own ground" system. When you know both phases are live you avoid that entire class of "but that's not supposed to happen" problems ... or at least you notice the problem early. And of course, all phases have breakers. (The downside is that there is no easy way to get 400V out of it; the highest you can cobble together is the normal 230V phase/phase. I'm not an electrician, and I don't know how they provide higher voltages to people that require them.) We also don't have piped gas, which seems sort of comforting given the only time we hear about it is when something explodes. I assume that's mostly reporting bias - nobody talks about how exciting it is that most water heaters and furnaces didn't vaporise the surrounding house(s) today. 
Computer viking fucked around with this message at 19:01 on Dec 8, 2019 |
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Dec 8, 2019 18:59
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lol @ petrostates that don’t have piped gas for themselves
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Dec 8, 2019 21:17
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Ok, I'm dumb. Neutral gets energized and completes the circuit with ground if you shut off the main breaker since neither of those would be protected?
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Dec 8, 2019 21:52
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stealie72 posted:Ok, I'm dumb. Neutral gets energized and completes the circuit with ground if you shut off the main breaker since neither of those would be protected? Yes. Pole hot to pole neutral to you panel neutral bar to panel ground hopefully to actual ground. Due to the other stuff that has other paths to ground and the basically unlimited power all of your stuff gains potential.
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Dec 8, 2019 22:00
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https://twitter.com/cat_beltane/status/636918889155305472 couple more pics in that thread
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Dec 9, 2019 03:05
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That's a sidesaddle scenario
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Dec 9, 2019 13:38
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I imagine closing the trapdoor helps a lot
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Dec 9, 2019 13:40
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Seems handy if the pipes get clogged.
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Dec 9, 2019 13:44
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2/2 ranch house. Excellent plumbing access.
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Dec 9, 2019 13:54
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The freedom of swinging your legs while you poop.
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Dec 9, 2019 14:23
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If your nightmare hole is under it then you are using the toilet wrong.
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Dec 9, 2019 14:27
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GotLag posted:I imagine closing the trapdoor helps a lot I could never, ever relax on a toilet like that, even with a trapdoor and a safety harness. I'd rather try to poop in a truckstop restroom with a busted doorlock in the shady part of town.
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Dec 9, 2019 14:28
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Default Settings posted:I've read a study comparing the different ways of drying hands in bathrooms, and how much they contribute to the spread of germs. That study was funded by a paper-towel company. Shockingly, a study funded by Dyson came to the opposite conclusion.
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Dec 9, 2019 17:21
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Sounds like an unaffiliated party, such as a fifth grader doing a science fair project, ought to look into this.
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Dec 9, 2019 20:09
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You say that like we want/need dryers that blow air hot enough to sterilize. That wouldn't end well. Edit: Oops, wrong quote button.
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Dec 9, 2019 20:19
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HelloIAmYourHeart posted:Sounds like an unaffiliated party, such as a fifth grader doing a science fair project, ought to look into this. If I remember right, a fifth grader who noticed a lot of complaints from her classmates about the hand dryers being painfully loud did do a study on her own to see how loud they were. Turns out, most hand dryers are well above the maximum decibel level permitted! And the companies don't test them in conditions similar to where they'll be used; they get tested in soundproof rooms.
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Dec 9, 2019 20:50
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tinytort posted:If I remember right, a fifth grader who noticed a lot of complaints from her classmates about the hand dryers being painfully loud did do a study on her own to see how loud they were. https://www.today.com/parents/13-year-old-publishes-study-showing-hand-dryers-are-too-t159424
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Dec 9, 2019 20:54
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I'm thinking about that energized gas line and it occurs to me that shutting off the main gas to the house could make the situation more dangerous. With a loss of pressure, air could enter the gas line from the end of an appliance unless there's some kind of backflow prevention? Obviously the gas, however hot, can't ignite until there's oxygen available, so keeping the line full of pure gas with no oxygen is paramount. Also, if that hot water heater's burner is on, that keeps a flow of cooler gas running through the red hot energized section of corrugated piping, which should actually cool it a little? It's one of those cases I think you'd have to study in lab conditions to be certain which action is less dangerous.
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Dec 9, 2019 21:04
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Jaded Burnout posted:https://www.today.com/parents/13-year-old-publishes-study-showing-hand-dryers-are-too-t159424 Yep, that's the one I was thinking of.
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Dec 9, 2019 21:09
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If you really want to spend far too long on the topic: https://www.theguardian.com/society/2019/apr/25/hand-dryers-paper-towels-hygiene-dyson-airblade quote:Hand dryers v paper towels: the surprisingly dirty fight for the right to dry your hands
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Dec 9, 2019 21:28
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Leperflesh posted:I'm thinking about that energized gas line and it occurs to me that shutting off the main gas to the house could make the situation more dangerous. With a loss of pressure, air could enter the gas line from the end of an appliance unless there's some kind of backflow prevention? Obviously the gas, however hot, can't ignite until there's oxygen available, so keeping the line full of pure gas with no oxygen is paramount. Also, if that hot water heater's burner is on, that keeps a flow of cooler gas running through the red hot energized section of corrugated piping, which should actually cool it a little? There are no real conclusion to be drawn on what the "correct" move would be in the wild. You've correctly identified that the gas, while contained in the line is way below it's UEL even though it's also way above its ignition temperature. Flowing gas may have a cooling effect, but that probably doesn't matter and you can't control if it's flowing or not with any safe and reliable means. What really matters is how long it's going to be contained. And for that, every different hose, length of hose, exact temperature, the number of times it's been bent, how much it's been bent, etc, etc, etc, etc are going to matter more than anything else. Basically un-knowable details of the particular material and its installation. So you just shut off the gas. And if possible, vent from another port or appliance. Hell, that's emergent enough to justify doing some real damage outside (cutting outside-accessible piping with something like a hydraulic tool) in order to get gas out of the lines inside.
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Dec 9, 2019 21:53
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Natural gas flow rates are Not High. The pressure required for domestic appliances is measured in fractions of a PSI.
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Dec 10, 2019 02:00
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From a spare bedroom we’re working on: (Folded up paper spacing the light switch from the box)  Bonus: the light switch is installed upside down.
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Dec 10, 2019 17:15
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