Tom Baker is turning his long-lost Doctor Who movie script into a novel | 19mm Momentary Push Button

Rob, where would anyone ever get 10,000V from? Or even 1,000? Short of lightning strikes, these voltages don’t exist in the home, or in many factories. Why do those voltages matter?

I probably ought to be dead, or have some scars at least, but apparently I’m a very resistant person.

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I use mains power for my bed on both of my 3D printers. It’s controlled from RAMPs exactly the same as a 12v bed would be with the exception that the signal from the RAMPs board is used to trigger a solid state relay. I use a standard silicon heat mat: https://www.google.com/search?q=3m+heat+mat&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjawpmuoOPJAhVFtIMKHXC1AO0Q_AUICCgC&biw=960&bih=557

While contrast-detection AF systems these days are much faster than they used to be, phase-detection AF generally still has the edge in terms of outright speed. It also involves less hunting around the point of focus, since phase-detection systems can determine both the focus direction and the required adjustment. On the flip side, though, contrast-detection systems generally offer more precise focusing, since the image sensor itself is responsible for confirming the point of focus, without any reliance on the lens’s focus drive and AF sensor alignment being perfectly in spec.

McConnell, however, has said he doesn’t see any threat of Trump firing Mueller, and he indicated Tuesday that he would “probably block” the bill from coming to the floor if Flake pushed it a second time. On the other hand, Majority Whip John Cornyn has previously signaled that there could be an openness to considering the legislation to keep things moving on judicial nominees, especially as the Senate seeks to wrap business up toward the end of the year.

Don’t describe the kind of ceiling fan or light fixture you’re looking for and expect me to find one that fits your vision perfectly. Go to the hardware store and pick up your own items so you can guarantee they’re what you want. Just get in touch with me before you buy it in case it won’t fit correctly. Plus, find out what electricians wish you knew about batteries.

I’m not claiming this is a new phenomenon (I’ve done some stupid things with electricity myself, before the www was even invented) but we know that the media isn’t always rational about these matters.

If you can tell me the relation between MOC max or peak amps values and the switched power done by the MAINS BT137 Triac I will be more than happy to hear….

It must be completely fine, and I actually prefer IEC equipment (that is double-listed) for many applications, but whenever I have visited Europe, the general level of electrical safety (and the way things are wired) has often seemed a lot sketchier. Then again, they benefit from three phase just about everywhere, and their distribution network is nicely balanced. The NEC and life safety codes in general in the US seem comparatively highly conservative but I suppose I don’t particularly mind. Would your experience agree?

(So your distribution wire can be thinner, and so cheaper, mainly because you have less current, but also because you can have a slightly higher voltage drop with less consequence !)

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