Lenovo’s retro ThinkPad 25 laptop leaks | 25 Amp Circuit Breaker

I had the same shock at 8 years old I put my finger in a lamp socket with no bulb, Living in UK I was treated to 240v. I have never had a mains shock since (thankfully). i have had lots of other shocks though mainly non discharged capacitor’s/

Even if you do go ahead and try to solve your electric issues by yourself, don’t shut off only your electric panel’s main circuit breaker, which is usually the top switch. Turning that off before all the miniature circuit breakers (the smaller switches that control a specific outlet or part of the home) means the entire load of electricity suddenly has nowhere to go, which could overload the panel—and that’s an expensive fix. Shut off each individual circuit first, then turn off the main breaker.

Receive News & Ratings Via Email – Enter your email address below to receive a concise daily summary of the latest news and analysts’ ratings with our FREE daily email newsletter.

Just curious, what size pump do you have? The Sonoff claims 10A per channel, but my 1HP pump needs a 40-50A relay to safely deal with cold-start current. Unless the relays are overspec’d I’d be worried about literally burning out those contacts pretty fast.

Ultimately under-rating won’t solve the problem. The Chinese scammers are already putting below-rated parts in, because they assume most users will under-rate anyway, so they’ll get away with it. If, in response to that, you under-rate even more, and this becomes mainstream, what do you think will happen? They’ll just take it into account, same as ever, and the 75A parts you’re putting 40A through, because you want to be careful, will only contain 20A triacs.

The Residual Current Circuit Breaker is a tad expensive, and is probably overkill for most hobbyists. A Ground Fault Circuit Interrupter outlet, (GFCI), is cheaper to buy, cheaper to have installed, and a *knowledgeable* do-it-yourselfer can install his or her own. If you are knowledgeable about electrical wiring and codes, but don’t want to change an outlet in your house, you can buy a GFCI outlet and some regular outlets and make your own ground-fault-protected power bar, as a correctly wired GFCI outlet can protect additional regular (cheap) outlets as well. Alternatively, I’ve also seen GFCI units that plug in overtop of regular outlets and add protection to them.

And this AC vs DC case when it comes to skin effect, is a reason for why some Data centers use DC distribution, as most server products uses switch mode power supplies and therefor has an internal bridge rectifier.

You won’t always have to group them together through the app, either. If a Sonos device is playing AirPlay 2 audio, you can just push and hold the play button on an older Sonos speaker to have it automatically pick up that same source.

A path is the key. To be thrown across a room and to be banged up, ie bashing into a wall, must have been a low current high voltage event that made a path!

> and some apartments are fed with 208V 3-phase, which provide three phases of 120V to neutral, or 208V phase-to-phase.

Since the translucent mirror only reflects enough light to provide for the autofocus sensor, not an optical viewfinder as most pellicle designs permit, Sony has adopted full-time live view in the Alpha A33 and A55. In place of the optical viewfinder from a traditional SLR, the SLT cameras have an electronic viewfinder with 1,152,000 dot resolution. The EVF LCD is time-multiplexed — that is to say, it shows each color in sequence at every pixel location, rather than the separate, adjacent color dots of most electronic viewfinders. This makes it harder to distinguish individual pixels. The Sony SLT-series cameras also sport a wide-aspect 3-inch LCD with 921,600-dot resolution. Taking full advantage of the camera’s full-time live view shooting, the super-slim LCD tilts 180 degrees vertically, and swivels 270 degrees for easy viewing from most any angle. The cameras also include TruBlack technology borrowed from Sony’s picture frames.

The only powertrain available to test was the new, higher-powered 2.0-litre hybrid, designed to offer eco-conscious buyers who like a bit more performance an alternative to the resolutely fuel- and CO2-focused 1.8-litre. Mated to a six-speed auto, there are two standout features: chiefly, that the link between the accelerator position, revs and actual performance are better matched than ever before, with the CVT-esque disconnect between them now greatly – if not entirely – reduced, and secondly that, so long as you are happy to let the gearbox run as an auto, rather than play with the mostly superfluous wheel-mounted paddleshifters and try to act out your inner F1 driver fantasy, there is strong, smooth performance on offer.