Zone out to the longest continuous timelapse made in space | 220v Contactor Relay

*Using approved LO/TO procedures which include verifying the energy sources are removed/disappated and safe

The best tip for buying a portable home generator: Don’t wait until the lights go out. Whether you live in a place at the mercy of snowstorms, hurricanes, heat waves or an outdated electric grid, a power outage can range from an annoyance to life-threatening.

Although we bumped into each other on job sites, we had different employers. I knew his family and I wasn’t about to ask them about the details of course.

Bryan Orr is an HVAC and electrical contractor in Orlando, Florida. He is the founder of HVACRSchool.com and the HVAC School Podcast. He has been involved in technician training for 15 years. 

As always, in terms of refinement, petrol or diesel drivers need to recalibrate their minds, not least because the near silence (bar wind noise) below 2000rpm stands in contrast to the engine noise that intrudes thereafter. At a cruise the peace is notable, while if you push on the arrival of engine noise is a momentary surprise rather than a permanent irritation. A sub-8.0sec 0-62mph time underlines that this is a reasonably pacy hatch too.

Didn’t have to purchase any EVSE. My 2016 Volt came with one, that was L2 capable. You only needed to make a pigtail. It’s actually a Clipper Creek. So, for about $60, I installed a NEMA L6-20 outlet, with 20amp double-pole breaker, and 8 ft of 10-4 wire that I had left over. $20 got me a permit.

Being in the controller business I’ve been presented more than one friend’s design with insufficient cooling. One friend even mounted his SSR to a decent heat sink then mounted the entire assembly inside his housing with no air circulation. His response was “it will work” and he’s had two SSRs fail that I know of. At least in his case, the steel housing kept the “magic smoke” contained!

We’re pleased to report that the EVF in the Sony A33 provides better dynamic range than most, and does a decent job of preserving highlight detail in high-contrast scenes. The slight distraction caused by the "rainbow" effect is relatively easy to ignore most of the time. Sony specs the EVF as having 1,440,000 dots, of which 1,152,000 are effective in the viewfinder display. We believe that the company is following precedent here, by reporting a dot count as if each pixel constituted three separate color dots, rather than being time-multiplexed. If that’s the case, the actual pixel resolution would be 480,000 total pixels, of which 384,000 are effective in the final image.

Does matter since he runs it on DC, even so the lamination are already welded at the factory, its how the transformer is assembled.

You also need to insure that the hot line is completely isolated from the neutral line other than via the intended switching and power supply paths. Insuring that is a hell of a lot easier when you use registered isolating components to do it.

Theres a homebrew 80vdc @150amp supply in my cnc converted bridgeport, that runs the entire dc rail for the steppers and other stuff, its always scared me slightly because I know that the big transformer its based on has a mag field and when it collapses and it has some massive smoothing capacitors to boot, so I have masses of isolation distance everywhere the dc side runs and I disable the transformer with a dedicated switch while working in the cabinet of it. I had a stepper driver supplied directly off the rail go bad and it just had a large hole where it used to be. I just imagine that was a bit of me if I get tempted to get sloppy with it. I’ve never put much thought into getting electrocuted by a welder, I’ve tickled my finger with my 3 phase tig set more than a few times getting too close and giving a nice easy starting path to the startup pulse. Maybe I should, I’ve got a massive 3 phase 380v transformer tig that can do 375amp dc, that tends to throw all the breakers out while its saturating its massive transformer with the inrush current… I try to treat mains voltage with the respsect it deserves. Its a killer, but if you take sensible precautions and steps you can avoid it being you it happens to.

Always pay attention to the safety warnings, and never underestimate the stupidity of anyone, most importantly your self.