Kojima shows off a new Death Stranding trailer at E3 | 25 Amp Circuit Breaker

The gate resistor will eventually short to the trace after so many cycles. It may take a while, but it will eventually happen. We had that problem years ago with a product. Resistor has to be lifted up above the trace. Traces and such seem fine for 120VAC for low current loads. Wouldn’t pass muster overseas.

TRIACs have very low junction voltage / resistance especially when compared to the load they are driving. When they are overloaded they heat causing the the junction voltage to increase rapidly causing exponentially more power to be dissipated by the TRIAC instead of the load. This whole process seems to take about a nanosecond and ends with a small amount of the plastic casing still attached to the legs.

Remembers me of an incident when my mother asked me to fix the extension cord for the electric lawn mower – “please check the cable, the garden worker complained the mower does not work”. I opened the socket type end of the cable, saw a dislodged contact spring and wanted to reseat it. Then I had to feel the other end was still connected to 230VAC mains. It just did not think of thisbefore… But luckily it just stung a little. I pulled the plug and continued my work.

The importance of inspection isn’t so much the wires popping off as heating up. Any signs of discoloration of the crimp terminals or wires, or any fog or smoke and you should disconnect *everything* immediately and stop using it until or unless it is repaired and ALL heat damaged components replaced and THROWN AWAY.

The Battery operated Snow Blowers you see advertised are just toys… Just figure out how big the battery is and the trivial amount of work it could do.

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.

120V comes with a nice plug (NEMA 5-15P) that is smaller than EU’s and you can fit more of them onto a power bar. There are always two outlets in a wall receptacle. Unless you have wet fingers, 120V won’t kill you (usually). Ask most kids that stuck things in the wall outlet and have lived to tell their tale… it is very common. Aluminum wire for branch circuits in homes was all but banned three decades ago or more. I think you have embellished things a bit. Look up the history why Europe went 50 Hz, instead of a higher frequency like 60 Hz… your lower 50 Hz results in heavier transformer cores. Find out why Japan is 100V, and the country is split 50/60 Hz! There is always politics, and not pure technical reasons.

The IEC61010 category ratings on an Agilent multimeter. Medvedev [CC BY-SA 3.0], via Wikimedia CommonsYour instruments such as multimeters, oscilloscopes, and their probes will all carry an appropriate safety rating for maximum voltage, surge voltage, and current. In modern equipment this will be denoted by specified classes each with their associated voltage defined under IEC 61010, though you may find older equipment with IEC348 or other national standard ratings (Fluke publishes a handy PDF explaining these standards in detail if you would like to know more). These ratings are important in ensuring that the instrument keeps you safe as you use it.

Yeah, the US connector system is a mess. I just installed a system that’s supposed to use a NEMA 6-20 plug, but the building services people installed a NEMA L6-20 receptacle (locking version). Same electrical specs, but they don’t mate. Back to lopping off the plug and wiring my own g-d connector… Arrgh.

I can’t speak for 75 mph, but the EPA for the regular hybrid Niro is high 40s to 50 mpg highway. Since this car uses the same Atkinson cycle 1.6L engine, I’d expect about the same fuel economy.

But they’d have to be in the same phase for it to work. If they’re in opposing phase, they’ll just push and pull against each other.

That works, it’s a couple of hours work with an RFM12B. And it’s write-only, so you can’t read the status (so no confirmation it actually turned on/off).