Battlefield V’s creators: female characters are ‘here to stay’ | 25 Amp Circuit Breaker

“OK, you hold that small bulb across that plug, I’ll connect this 9v battery across the live & neutral pins…”

You are right, of course. I should have used “shock” instead of “electrocution”. English is my secondary language…

My post outlines the PME system. There are older systems that do run an earth / ground but they are being removed as and when they need attention. The US system is different but the number of countries using the US system is much less than the number of countries that use a similar system to the UK. I am UK based and UK trained.

Before we begin, we must begin with an obligatory disclaimer: handling mains voltage can be very dangerous. Do not do so unless you are qualified! You could burn your house down. (Without the lemons.) That being said, [TJ] has created an interesting dev board for controlling mains voltage over WiFi with the now-ubiquitous ESP8266 module. At only 50mm x 25mm, it is easily small enough to fit inside a junction box!

Second was with an old (illegal) CB amp that I was converting to HF, and I touched an unshielded feed inductor of some sort, the aftermath from the RF burn was worse than that time I grabbed the wrong end of an iron with my fingers.

Burst depth for the Sony A33 is seven Raw or Raw+JPEG frames, and 16 Fine or 20 Standard JPEG frames in a burst. That’s quite a bit less than the A55, which can capture twenty Raw or Raw+JPEG frames, while JPEG shooters can expect 35 Fine or 39 Standard-compression frames, but in our experience, the Sony A33 makes up for this deficit somewhat by clearing its buffer much faster. This means that although the A55 will get you more shots in a burst, the A33 will be ready to start another burst much sooner.

Also power the unit directly from the mains ( http://ww1.microchip.com/downloads/en/appnotes/00954a.pdf ) with the ability to power the unit directly with DC when (re)programming the ESP8266

Lenovo’s previous ARM-powered device was a 2-in-1 detachable tablet / laptop hybrid, but the new Yoga C630 is more like a traditional laptop that also flips over to become a tablet in the traditional Yoga style. Because it’s more of a clamshell-like laptop, you also get a polished aluminum design, and the build quality you’d expect from a laptop. Lenovo is equipping the Yoga C630 with a 13.3-inch FHD IPS touchscreen that also supports an optional stylus. There’s 4GB or 8GB of RAM, and 128GB or 256GB of storage. Ports include two USB-C and a headphone jack.

If you do not know the exact value of each cost, you could enter an estimated percentage based on the cost of goods.

You are correct and if you design this type of solution you already know this. With PCB design, the alternatives are heavier copper, wider traces, plating up copper in the areas that carry heavy current or a combo of any of the three. But you can only go so far with these solutions. Hack apart a known good SSR and I bet they use the exact same solution.

I use these kinds of SSRS in high current applications driving kilns. we protect ourselves quite happily by having a contactor in the line. The SSR when it fails fails ON and the contactor is help closed all the time but overtemp or any other kind of alarm will release teh contactor and break teh circuit. My recommendation – and no one wil ever get to the bottom of the comments on this feed – is to add a contactor in series which is help closed and opened in an alarm condition. Then the SSR can fail to its heart’s content and you’re good. The SSR is of course much better at switching on and off than the relay which will fail eventually from on/off transients. As usual – YMMV

And use a power circuit with a differential circuit breaker so if you touch live wire it will disconnect.