This robot uses AI to find Waldo, thereby ruining Where’s Waldo | Circuit Breaker Parts

https://www.ul.com/newsroom/publicnotices/ul-warns-of-solid-state-relay-with-counterfeit-ul-recognition-mark-release-13pn-52/

Depends how far north you are – direct sunlight isn’t required for them to produce useful heat. If you’ve got a months long night then they’re no use though.

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And another actually bigger reason for using DC instead of AC is when one wants x amount of mega watts of battery backed power, and converting that from DC to AC to DC again is rather inefficient, compared to just sending out the DC directly.

During service calls, being able to identify undersized conductors can help resolve compressor start issues or intermittent trips of breakers or fuses. Knowing appropriate and inappropriate breaker and conductor sizes will save you and your customers time and money.

Just three months after launching the NEX-3 and NEX-5 single-lens direct-view (SLD) cameras, Sony offers up yet another interchangeable lens alternative to the traditional DSLR, with the Alpha SLT-A33, and its closely-related sibling the SLT-A55. Instead of being mirrorless, the new digital cameras employ a "translucent mirror," more commonly known as a pellicle mirror. This advanced translucent mirror remains fixed in place during operation, allowing most of the light to reach the imaging sensor, while a small percentage is reflected to a dedicated autofocus sensor.

By not distributing the three wires and only distributing two you try to limit the possible potential between neutral at the sub and neutral at the house by using multiple earths anywhere you can so in this case when lightning strikes the local ground potential rise applies to the ground and to the local end of the neutral/earth wire. Massive currents may flow through that neutral/ground and eventually through the low value resistor at the substation but under no circumstance other than network failure is it possible to get a neutral ground potential of significance with a premise. The low value resistor at the sub limits the current to one that the network can handle.

I had my own suggestions further up in the comments here, and I’d like to believe I expressed them respectfully, and TJ addressed them. And, as is appropriate, the article text has an exhortation to not play with HV power without due care.

Did you keep records so that you actually know you repaired 15,000 TVs? I don’t believe it, and if it is not true then I doubt your other statements on this evidence alone. People should classify their statements as to fact, fiction, or opinion, not just leave them in an ambiguous interpretive limbo.

I believe two-man saws bite both directions. And if they don’t, then pretend that they do for the analogy.

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.

This plate is too likely to touch the user. It’s sensible to have a certain fear of mains voltages, makes you pay attention when you’re working with it. The DC power suggested would come from the printer’s existing PSU, pay a little bit extra for a few more amps, the overall wattage isn’t high. Much less than I presume you’d use in industry. Thanks to power-hungry graphics cards, high-power PC PSUs are cheap.