Here’s a sure red flag the home contractor you’re considering is untrustworthy | 220v Contactor Relay

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.

Good call, light bulbs and heating elements don’t need perfect smooth precise 12vDC, as long as it’s in the ball park you’re good.

It’s not that simple according to National Electrical Code (NEC) NFPA 70 for several reasons. Here are some additional factors to be considered:

But at the end of the training it says “you can ignore all of this if you are troubleshooting”. If you are afraid of live circuits, stay at your desk where it is safe…

Usually called a Residual Current Device (RCD) or Earth Leakage Circuit Breaker (ELCB). Usually set on 30mA, but they take a small time to trip, which is dependent on how much current is leaking into the poor unfortunate 3D printerer. Much better than nothing, but not 100% guaranteed to save your life. I’d sooner leave mains voltage alone for things I’m tinkering with. I only mess with the mains for simple jobs, and then I’m very cautious.

As for anti-static grounding, proper setups aren’t ‘hard grounded’. For reasons of safety they have resistances in the megohm range, (usually distributed resistance), between the technician and ground.

This makes no sense when you’re designing a heater. The higher the current, the hotter the wire will be. That’s why power companies transmit power at high voltage in the first place: they want to minimize heating. 120 watts flowing through a wire does NOT mean that 120 watts of heat are dissipated in it. You’ll get a much more efficient heater at lower voltages and higher currents.

It’s not easy to get that many amp-turns out of such a feeble source. You can wind arbitrarily many turns in a coil and create ridiculous magnetic fields, but the series resistance grows to the point that adding more turns decreases the current and diminishes the field.

Keep in mind that for a circuit to have a rating above 60°C (140°F), the wire as well as the breaker, disconnect lugs, and connection lugs in the equipment must all be rated at a temperature at or above the temperature rating being used. If any portion of the circuit utilizes non-metallic (NM) cabling — often known by the trade name Romex® — it must be rated at 60°C (140°F) according to article 334.80 of the NEC.

Maximum video length is 29 minutes or two gigabytes per clip, whichever limit is reached first — although if SteadyShot is enabled, this limit is slashed to just nine minutes per clip, likely due to sensor heating issues when using the sensor-shift stabilization mechanism. Full HD videos are recorded using 17Mbps AVCHD compression, while the lower resolutions are saved with MP4 compression, at a bitrate of 12Mbps for 1,440 x 1,080 pixel video, or 3Mbps for VGA video. Movie capture is started and stopped with a dedicated Movie button located just to the right of the electronic viewfinder, within easy reach of a thumb press.

Note: Not all certifying agents offer online lookup, and some have a lag time for posting new certificates. If you are unable to find a certificate online, contact the certification agency or supplier for further verification.

Thanks for letting me know about the typo and qualifier on the 208V part. I’ve updated it in the article.