In Japan, People Get Charged Up About Amping Down | Circuit Breaker Parts

Why do the US still use 110v mains and 20A room circuit breakers? Those currents are dangerous, not the volts.

Quite often, when I was in the Air Force as a Cable Dawg, I would get zapped while doing copper cable cut splices for mission critical systems. Meaning they were left powered and came back on one by one as they were spliced. -48v DC is very tingly when it runs through a crimper and into your arm…

I was in sixth or seventh grade, playing with a transformer with a 540 V secondary, when I accidentally grabbed one cllp lead too many. The current was flowing from one hand to the other, and I could not let go. Eventually–I’m sure the subjective time was much greater than the actual time–I was able to use my legs to knock myself off of the lab stool onto the concrete floor. Hitting the floor felt so good!

The plug-in Kia Niro has an 8.9 kWh battery (vs. 1.6 kWh in the regular car). You can quickly estimate the amount of kWh you used in the week as long as the battery was fully drained every time you plugged the car in (it’s fully drained if the gasoline engine kicks in) and you know how many times you charged the car.

You could make a multimeter that had an internal switch for volts / amps. But I think electricians wouldn’t trust it. So it’d be a useless feature, as well as, probably, increasing the shunt’s resistance. And be another point of failure somewhere dangerous. Etc! Nobody wants a multimeter that killed their mate.

Centered to the right of the lens in the photo above is the lens release button, while the depth-of-field preview button is positioned snugly at the bottom left corner of the lens mount. A small plastic panel in the handgrip conceals the infrared remote control sensor at top, and the self-timer lamp beneath. Directly beneath the shutter button and power switch is the control dial, used to make adjustments to exposure and variables and menu options.

I often say this, and I will say it again: just because a thing is often done poorly, foolishly or dangerously does not in and of itself preclude it from being done properly.

You like many others here can wallow in their own baseless opinions, meanwhile millions including myself very safely charge up using 120 volts almost every night. I usually use a higher voltage for the BOLT, but the ELR mostly just charges on 120 the same as most VOLTS.

You just described Capitalism in general ….. Every corporation I worked as an engineer for did those exact same things all the time and that was over 20 years ago before China even became a player …. American automobiles in the early 80’s are an even better example

220 volt +/- 10% isn’t really a good design standard. As it doesn’t live up to the requirements within the EU to start with.

No, Britlish, which is some modern bastard concoction. It’s well known that we in the colonies (American, that is) speak English that’s closer to the “original” than what the British warp the air with.

Yeah really though. It’s kind of embarrassing. I’m an engineer and work in big industry (usually minerals, bulk material handling, oil and gas, doing a big robotics project right now for a wood products plant, etc.) and this would be an afterthought. No one would even question it. I mean really a no brainer. People use electric blankets on their bed. I really don’t get it. It really shows how amateur hour most of the people who comment on this site are.