How To Wire A New Garage For Electric-Car Charging: What You Need To Know | 19mm Momentary Push Button

Chassis floats with just 2. My folks lived in the middle east before my dad retired and I visited them in 2013. You could feel 50hz on the refrigerator door handle. Touching their aluminum iMac gave a nastier jolt. I remember my dad telling me, “yeah, don’t touch that” after trying to plug in a USB stick.

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Halogen lamps hate being run at substantially less than full power! The additive (bromine or iodine) is used to keep the inside of the bulb clean and regenerate the filament, but it corrodes the filament if it’s not hot enough.

You did reply to the Gurubuckaroo comment, just a few interjections managed to find their way in first. Does mess up smartarsed replies occasionally, shame when it’s a particularly funny one. On busy articles, I often find posts popping up between pressing “reply” and “post comment”.

Theres a homebrew 80vdc @150amp supply in my cnc converted bridgeport, that runs the entire dc rail for the steppers and other stuff, its always scared me slightly because I know that the big transformer its based on has a mag field and when it collapses and it has some massive smoothing capacitors to boot, so I have masses of isolation distance everywhere the dc side runs and I disable the transformer with a dedicated switch while working in the cabinet of it. I had a stepper driver supplied directly off the rail go bad and it just had a large hole where it used to be. I just imagine that was a bit of me if I get tempted to get sloppy with it. I’ve never put much thought into getting electrocuted by a welder, I’ve tickled my finger with my 3 phase tig set more than a few times getting too close and giving a nice easy starting path to the startup pulse. Maybe I should, I’ve got a massive 3 phase 380v transformer tig that can do 375amp dc, that tends to throw all the breakers out while its saturating its massive transformer with the inrush current… I try to treat mains voltage with the respsect it deserves. Its a killer, but if you take sensible precautions and steps you can avoid it being you it happens to.

I did this to my 3D printer quite awhile ago. I made my printer bed from 1/2 inch thick aluminum for thermal mass. I went to walmart and bought a $6 clothes iron. The iron had a cast aluminum foot with the integral ceramic heating element. I took the iron apart and cut the element out from the foot with a bandsaw. I applied some thermal grease to the cutout heating element and screwed it to the underside of the thick build plate. I attached the thermister sensor a ways away ftom the heating element so i would read the build plate rather than the element. i used a solid state relay for control. For safety i ran a ground wire to the build plate and fused the mains. It works great!

I don’t know, disassemble an induction heater, use the encased induction coil, feed it with mains, put a metal plate on it, and you got a safe but cumbersome heated bed using mains.

Keep in mind that extension cords running from a generator can power anything that plugs into a wall socket, but not hard-wired appliances such as a furnace, sump pump or central air conditioner. If you want to run any of those during an outage, you will need to have a licensed electrician install a manual transfer switch (it looks like a mini circuit breaker) next to your main electrical panel. A heavy-duty cord from the generator plugs into the switch and allows you to power select circuits in your home. Prices vary depending on your market. In Neale’s case, she paid about $1,200 for the switch and installation, more than for the generator, which cost about $550.

I had a job testing these once, and I can confirm that standard failure mode for overcurrent is some kind of explosion. Usually it was a puff of flame and dust down the leg, but occasionally we’d get a TO220 blown in half

Electricity can and will kill you. dead. it doesn’t care if it’s dumping into you from an AC or DC source or at what frequency. A little tickle to one person may be the correct amount at the right time to drop another who has a heart defect they didn’t and will never know they had. “Freezing on circuit” and all the other bullshit people wax on about is meaningless when you are dead. And electricity will grab you and tear out your soul before you have a chance to fucking realize you are dead. If you honestly don’t know what you are doing, then shut the fuck up and stay the hell back. A dead “know it all” knows nothing. Turn off your fucking ego because it’s going to get you killed. Period. Use common sense to keep yourself alive, if you have none, stay the fuck away from electricity.

In the US, sharing neutrals between circuits is generally prohibited in the National Electrical Code, 200.4, which says, essentially, “Don’t share neutrals, unless we say somewhere else in the code that you can.” That bit was added in 2011, though other parts of the code cast a penumbra that seemed to say that sharing neutrals was verboten before 2011. In 2011, it became clearly prohibited.

All this stuff makes me think it might be time to get a Faraday cage installed around my heart. Or maybe a big shunt from shoulder to shoulder.