16-channel solid-state power controller for military and aerospace applications introduced by DDC | Circuit Breaker Parts

This. An isolation transformer can be a very useful thing, but also very dangerous. If you touch ONE end no problem, but if you touch both ends you will get cooked and the RCD will NOT trip. Or more directly: An isolation transformer does NOT allow you to switch off your brain! And NEVER connect a scope to such a transformer.

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!

I have never seem a ‘cooked’ TRIAC or a TRIAC that is not working properly unless it has exploded.

I would like to add that it’s not just electricity you need to worry about. There could be other energy sources present from things like air, springs, hydraulic, etc that could pose a safety risk when you remove the electricity.

Snap! Didn’t even get the first instrument lit. I began to investigate. Wiring size, check. Dimmer output side breaker, still on. Go further down the line and find that the electrician had indeed taken care of it. He re-did my calculations, which at full nominal load looked like a 15 amp breaker on the input side of the dimmer would work just fine. What they didn’t realize is that when you bring an instrument or instruments (depending on the circuit) to full on, you go beyond even 20 amps for just a moment, then it goes down to about 13 amps.

So, for the assumptions I made here, it’ll cost about the same amount of money out of your pocket to use electricty to propel your Niro and it does to use gasoline. If electric rates are higher than 15 cents/kWh (easily possible, at least here), then it’s more expensive to use the battery. There may good reasons to get the plug-in version of the Niro instead of the regular hybrid version, but saving money doesn’t appear to be one of them.

One nice thing about the Sony A55 and A33′s electronic viewfinder is that the Fn menu is also available in the viewfinder display; you can make many camera settings without taking your eye from the viewfinder eyepiece. As I became more familiar with the camera’s controls, this led to a very efficient shooting style, although it would take more than the few days I’ve had with the camera thus far for this to become second nature.

I love the concept and the build. But does potting with epoxy resin have enough strength to hold magnets in place? I did not see any mechanical fastners holding magnets in place . If epoxy cracks I see magnets pulling out of metal bracket and failure .Over to someone with engineering experience please.

I’m always a little torn over really small camera bodies, as it can be uncomfortable to twist my longer-than-average fingers around a small handgrip. That said, I really didn’t find the smallish grip on the Sony A55 too objectionable. The design of the front grip naturally encourages my middle and third fingers to curve downward, my pinkie to fold underneath the body, and to carry the weight of the camera on my middle finger, between the second and third knuckle. My customary two-handed SLR grip, with one hand on the lens’ zoom ring made for a comfortable and secure hold.

Sega announced on its Twitter account today that the release of its Mega Drive Mini, a miniature version of its classic console, would be delayed until sometime in 2019. The Mega Drive Mini’s release was originally slated to coincide with the console’s 30th anniversary in Japan, but its global availability was unknown. Now, the company has confirmed that the miniature console will be released as the Mega Drive Mini in Japan and Europe and as the Genesis Mini in North America.

Have to be ohnest I would never ever consider a SSR for such an application even if it was a genuine unit form a reputable supplier. this is a perfect example where a relay should be used, tried, tested and ought to fail somewhat gracefully if it came to it. Not snarking at the OP, but any situation I have used an SSR its been massively over-specced for the load im driving, i dont think I could sleep well at night with an SSR controlling tens of amps at hundreds of volts.

Electricity is complicated and dangerous. If you don’t know what you’re doing, you could start a fire or get electrocuted—sometimes fatally. Pretty much anything beyond plugging something into the wall should be left to a professional. The cost of my visit is nothing compared to the price of your safety. Here are 12 more home improvement projects you should never DIY.