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Zopotantor posted:There's a guy across the street on the roof, doing something unspeakable to a chimney. I can't see any PPE. http://www.bbc.co.uk/news/uk-england-london-33729664
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Jul 31, 2015 11:42
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Three-Phase posted:Is that a power/energy metering unit? The ones I've seen you connect line and load side, but you never do something like that where the insulator is punched through... Yeah it's a power meter. I've never actually seen them installed but the design is so retarded I saved this. The manual doesn't even mention armored cables.
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Jul 31, 2015 11:54
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Nalesh posted:I'm just reminded of this video 
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Jul 31, 2015 12:17
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Assassin's Creed: Homeowner looking good.
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Jul 31, 2015 12:28
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Nalesh posted:I'm just reminded of this video Of course he's Scottish. Of course he is. 
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Jul 31, 2015 13:34
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Kremlin Kremlin posted:
How do you even get the screw in there without getting electrocuted or causing a fire or something.
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Jul 31, 2015 15:53
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I'm assuming that it's balanced on the hydraulic arm so if nothing else it's not going to unexpectedly fall on him unless he does something stupid like disconnect all the hydraulics so the arm has no strength in it.
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Jul 31, 2015 15:57
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tacodaemon posted:And yeah, that last pic shows the door by the stage that the volunteer bouncers wouldn't let people exit through. To be fair, it does have a sign saying to keep it closed at all times.
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Jul 31, 2015 16:16
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Drone_Fragger posted:I'm assuming that it's balanced on the hydraulic arm so if nothing else it's not going to unexpectedly fall on him unless he does something stupid like disconnect all the hydraulics so the arm has no strength in it. Or if whatever the arm is resting on gives out.
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Jul 31, 2015 16:17
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fisting by many posted:The hook is the wrong way. du -hast posted:How do you even get the screw in there without getting electrocuted or causing a fire or something. Every drill has a plastic cog in the transmission. Although this part is prone to breaking, it helps you not getting electrocuted or loving up the drill/battery if you should "accidentally" drill into a power source.
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Jul 31, 2015 16:53
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Hydraulic pressure loss is a common failure on these systems, in which the guy is pretty much toast.
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Jul 31, 2015 16:56
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Absorbs Smaller Goons posted:Hydraulic pressure loss is a common failure on these systems, in which the guy is pretty much toast. Typically a slow bleed over time as the machine is turned off, but still you wouldn't catch me under that fucker unless it was on some solid chocks. Fuuuuck that.
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Jul 31, 2015 16:59
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Drone_Fragger posted:I'm assuming that it's balanced on the hydraulic arm so if nothing else it's not going to unexpectedly fall on him unless he does something stupid like disconnect all the hydraulics so the arm has no strength in it. The shape and metal of the arm give it strength, its not an inflatable tube, this guy is like 100% safe. Slow bleeds only happen if the arm is suspended and even then in cataclysmic failure the arm wont descend faster than the oil moves anyway so you've got a good 15 minutes to get out of the way. This thread sometimes has trouble telling the difference between their own fears and danger
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Jul 31, 2015 17:14
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Jul 31, 2015 17:39
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This is the kind of stuff that happens to me.
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Jul 31, 2015 17:52
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What did he think was going to happen anyway? If he cleared the top of the roof, it was just gonna slide off the other side.
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Jul 31, 2015 17:59
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DemonToadGoat posted:The shape and metal of the arm give it strength, its not an inflatable tube, this guy is like 100% safe. Slow bleeds only happen if the arm is suspended and even then in cataclysmic failure the arm wont descend faster than the oil moves anyway so you've got a good 15 minutes to get out of the way. This is a very large scale version of getting under a car supported only by a hydraulic jack without using jack-stands except in this case the car and jack are both parked on dirt so even if there isn't a sudden hydraulic failure (15 minutes? If a seal/hose releases it would descend about as fast as if the operator pulled the lever in the cab so more like a few seconds) the guy is still relying on the dirt to not shift.
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Jul 31, 2015 18:03
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bitcoin bastard posted:What did he think was going to happen anyway? If he cleared the top of the roof, it was just gonna slide off the other side. Maybe he thought the roof was rough enough that friction would keep the sheet in place?
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Jul 31, 2015 18:07
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Cat Hatter posted:This is a very large scale version of getting under a car supported only by a hydraulic jack without using jack-stands except in this case the car and jack are both parked on dirt so even if there isn't a sudden hydraulic failure (15 minutes? If a seal/hose releases it would descend about as fast as if the operator pulled the lever in the cab so more like a few seconds) the guy is still relying on the dirt to not shift. Yeah, that's definitely not the right way to do whatever it is he's doing under there. There's the very real possibility that something bad could happen and if it did, it would be because of stupidity, not just a freak accident that nobody could have foreseen or prevented.
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Jul 31, 2015 18:14
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bitcoin bastard posted:What did he think was going to happen anyway? If he cleared the top of the roof, it was just gonna slide off the other side. I'm assuming he expected the edge of it to catch on the top edge of the plywood below it. Yesterday I had to mix up a batch of formalin for fixing purposes. I had a few milliliters of excess so, being new to this workplace, I asked where to chuck it and not a soul in the lab knew. Thankfully I found the lab coordinator and he pointed me to the hazardous liquids disposal 
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Jul 31, 2015 18:37
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Cat Hatter posted:This is a very large scale version of getting under a car supported only by a hydraulic jack without using jack-stands except in this case the car and jack are both parked on dirt so even if there isn't a sudden hydraulic failure (15 minutes? If a seal/hose releases it would descend about as fast as if the operator pulled the lever in the cab so more like a few seconds) the guy is still relying on the dirt to not shift. Yup, if a hydraulic line blows for the arm (there are two pistons for the main arm to move up and down so he MIGHT be okay) it will bleed out very quick due to it being under load. There's also the second arm and the bucket holding him and those also have hoses which can blow/fail.
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Jul 31, 2015 21:56
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FIRST TIME posted:Yeah, that's definitely not the right way to do whatever it is he's doing under there. Bitch, what do you know about hoes? https://www.youtube.com/watch?v=Je9FEuzVn_k https://www.youtube.com/watch?v=SSfl6XPKFYA DemonToadGoat fucked around with this message at 22:02 on Jul 31, 2015 |
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Jul 31, 2015 21:56
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DemonToadGoat posted:The shape and metal of the arm give it strength, its not an inflatable tube, this guy is like 100% safe. Slow bleeds only happen if the arm is suspended and even then in cataclysmic failure the arm wont descend faster than the oil moves anyway so you've got a good 15 minutes to get out of the way. -a dude who doesn't work anywhere near heavy equipment
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Jul 31, 2015 22:12
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DemonToadGoat posted:Bitch, what do you know about hoes? https://www.youtube.com/watch?v=S6BJnjpdY6I
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Jul 31, 2015 22:15
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DemonToadGoat posted:Bitch, what do you know about hoes?
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Jul 31, 2015 22:48
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Aug 1, 2015 01:40
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Center of gravity, how does it work?!?!?!
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Aug 1, 2015 01:41
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Pvt Dancer posted:Yeah it's a power meter. I've never actually seen them installed but the design is so retarded I saved this. The manual doesn't even mention armored cables. Reminds me - one of the things I commonly work on are current transformers - basically it's like a big torus and it puts out a small amount of current proportional to a big amount of current flowing through the hole in the torus. (Like 1200 amps through will generate 5 amps out.) Generally there's not a lot of voltage on the secondary. However the really dangerous part is that for an ideal current transformer, it will generate up to an infinite voltage to keep that five amps going out. So if you ever open the secondary circuit, the electricity will arc across instantly. It's generally limited to a few hundred or thousand volts, but it's still a serious electrocution hazard if you open the circuit. They make special test circuits that short out the current transformer circuit on purpose - that's safe. We had a guy at work accidentally disconnect one a long time ago, and he was pretty brave - he jammed it back into place, had a coworker hand him a screwdriver, and he very carefully re-landed the now scorched wire. 
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Aug 1, 2015 01:52
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DemonToadGoat posted:The shape and metal of the arm give it strength, its not an inflatable tube, this guy is like 100% safe. Slow bleeds only happen if the arm is suspended and even then in cataclysmic failure the arm wont descend faster than the oil moves anyway so you've got a good 15 minutes to get out of the way. Until he removes the engine and the center of mass changes and it falls on him. Check and MATE. (but also yeah this is pretty much true, if theres enough weight on the arm to force the oil out if he disconnects the hydraulics it means it's going to fall away from him anyway).
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Aug 1, 2015 02:16
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It's essentially a four bar linkage*. Those are inherently unstable. The only thing that keeps it from folding in on itself is the force of the hydraulic fluid. Remove the fluid pressure, remove the force holding everything in one orientation. *ground, body, boom, stick
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Aug 1, 2015 02:22
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Hijo Del Helmsley posted:Of course he's Scottish. Agitated Scot has got to be the least-intelligible dialect of English on the face of this planet.
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Aug 1, 2015 02:28
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Drone_Fragger posted:Until he removes the engine and the center of mass changes and it falls on him. Check and MATE. (but also yeah this is pretty much true, if theres enough weight on the arm to force the oil out if he disconnects the hydraulics it means it's going to fall away from him anyway). What? The arm is forming an archway over him and extends out of frame behind his back. If you remove half an archway it falls inward, not outward. If he'd already reached the tipping point it would have already flipped upside down or the counterweight would be resting on the ground, which it isn't.
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Aug 1, 2015 02:42
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if an excavator falls in the woods and crushes the idiot who went under it and nobody is around to hear him, does he scream?
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Aug 1, 2015 03:00
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So THAT'S how construction workers are born.
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Aug 1, 2015 03:13
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tacodaemon posted:
The sign says "KEEP DOOR CLOSED AT ALL TIMES". Seems to me like they did their jobs.
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Aug 1, 2015 04:15
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Centripetal Horse posted:Agitated Scot has got to be the least-intelligible dialect of English on the face of this planet. Seriously, sound like drunks with mouthfuls of marbles
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Aug 1, 2015 04:23
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DemonToadGoat posted:The shape and metal of the arm give it strength, its not an inflatable tube, this guy is like 100% safe. Slow bleeds only happen if the arm is suspended and even then in cataclysmic failure the arm wont descend faster than the oil moves anyway so you've got a good 15 minutes to get out of the way. "Don't walk under suspended loads" is a fairly common safety meeting topic.
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Aug 1, 2015 05:01
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Mak0rz posted:Yesterday I had to mix up a batch of formalin for fixing purposes. I had a few milliliters of excess so, being new to this workplace, I asked where to chuck it and not a soul in the lab knew. Thankfully I found the lab coordinator and he pointed me to the hazardous liquids disposal You in parasitology? Histology? And what was everyone else doing, just dumping it down the sink?
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Aug 1, 2015 07:42
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Centripetal Horse posted:Agitated Scot has got to be the least-intelligible dialect of English on the face of this planet. It helps if you're drunk, seriously
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Aug 1, 2015 08:24
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p sure youre no true scotsman unless youre balancing on the line between alcohol poisoning and coma
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Aug 1, 2015 12:45
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