Can Google AMP make the web faster without taking over the web? | 25 Amp Circuit Breaker

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

You’ll notice that there’s a single general lighting circuit that’s warmer than the other breakers in this panel; again, it’s only a small increase in temperature, so I’m not concerned. If it were much warmer, I might question why.

Only thing I can think is that it will send more current to high resistance loads like a human body, where lower voltage will send less. That’s the only thing inherently more dangerous about higher voltage, no?

Ah, sō desu ka… Time to get some more iron in my diet, if I’m going to continue this dangerous hobby.

Which part is wrong? Lets use the IEC definitions of the different systems for clarity and you can educate me with some links to regs where I’m wrong, since I don’t do this for a living or have formal certifications in it. I’ve just a couple of years back installed 380v 3 phase into my barn conversion in mainland France myself and its most definitely a terra terra (TN) earthing system I put in. I had a inspection to get my certificate (certificate du consuel) to connect from a inspector, who during his 3 hr inspection tested the impedance to ground of my independant earth with a megga tester then checked all the earth pins in every socket for spec of impedance back to my earth point, all of which are wired star back to the main consumer unit (ring main is illegal here). We get presented 3 phase wires + a neutral as tails into our main consumer unit from the RCD device (called a disjoncteur) belonging to EDF (supply company) and its not permitted to bond neutral to your own earthing system under the regs.

I’m renovating my basement, and putting in a 240V line to my garage. Just for something to do, as I don’t have an EV.

Translucent mirror (redux). As noted previously, adopting a translucent mirror design has allowed Sony important benefits in terms of autofocus, burst shooting, and body size, and conceivably the removal of one more mechanical component could improve camera reliability, as well. There’s no such thing as a free lunch, though, and the translucent mirror design does have some clear disadvantages as compared to existing SLR and SLD designs. Perhaps most significantly, light entering the lens is shared between the autofocus and image sensors at a fixed ratio. In the Sony A33, about 70% of the light makes it to the imaging sensor, while 30% is reflected to the autofocus module. With a traditional SLR, all the incoming light arrives at the image sensor once the mirror is raised, and the same is true of an SLD camera whenever its shutter is open. With less light arriving at the sensor for an equivalent aperture, a translucent mirror camera must either lower its shutter speed, raise its sensitivity (and along with this, the levels of noise, or the amount processing to mitigate it), or some combination of both. An increase in sensor gain to compensate for the loss may explain why we see slightly higher noise levels from the A33 versus the A560, which share the same sensor.

Heck, as I said, when I have needed to do this in the past I just used a multimeter, a terminal block, and no relaying whatsoever (ah, being perhaps complacent “qualified personnel”, eh?)

One possibility (on contactors) is to have a split pole with a copper ring one one half. This is similar to a shaded pole motor. The current which is induced in the copper ring (shorted winding) is out of phase with the current in the main winding and smooths out the zero crossings. Another possibility, mostly used on valves, is to rely on the inertia of the core, here the dampening effect of the fluid also helps. The device is just not fast enough to follow the 100Hz (or 120Hz in some oversea countries) ripple.

I definitely knew at the time touching bare wires wasn’t a good idea, especially not good to put yourself in a circuit, and have no idea what came over me at the time. Likely my fortune came from the fact I was in series with 20 odd low brightness bulbs so didn’t get to enjoy much current. No humans were harmed in this odd experiment.

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Engineering types have been known to reduce “Preventive Maintenance” in the large “Mains” switch panels in an attempt to save budget funding. A close friend stepped up to a sadly neglected switch panel, pushed the dis-connect and the panel door blew off in his face. It seems that dust is conductive, and will explode if a large spark is present. The good news, he is alive, and was promoted to avoid a lawsuit. :cheers: