Looking Mains Voltage In The Eye And Surviving | 25 Amp Circuit Breaker

I suppose the other point of note is that compared to 220/230/240 Euro voltages, residential 240 is not 240 to ground. The only things that have such high voltages to ground are either corner-grounded 240 deltas (which are exceedingly rare) and 480/277Y systems (which admittedly I do a lot of work with). I also really like how in the US we have such an extensive system of completely non-interchangeable, unique connectors for all the different voltage and phase combinations that one might find (thanks, Harvey Hubbell!)

If you’re commenting on my mention of clothes-dryers and stoves that was merely editorial. Plus, my house has one on the stove but I don’t particularly want to pull the stove out and unplug it so you can charge your car.

You really should drop the 110/240 volts statements and use 120/240 volts for residential installs. I don’t think 110 volts has been used since Thomas Edison.

Due to its diminutive stature, most photographers will find that the grip only accommodates two fingers, with the index finger resting on the shutter release button above, and the little finger curling beneath the bottom of the camera. This might seem a little crowded, but with the light, plastic-bodied 18-55mm kit lens, handling is nonetheless good, with the combination feeling extremely well balanced. Using larger, heavier lenses, the grip size is too tiring for single-handed shooting, so the photographer’s left hand will need to serve double duty, adjusting zoom or focus while simultaneously taking up the weight of the lens itself.

You did reply to the Gurubuckaroo comment, just a few interjections managed to find their way in first. Does mess up smartarsed replies occasionally, shame when it’s a particularly funny one. On busy articles, I often find posts popping up between pressing “reply” and “post comment”.

Overall, there’s little question that the Sony A33 has the best video AF of any interchangeable-lens camera currently on the market, but if you plan on doing much video recording, I’d suggest you also plan on buying an accessory external microphone to record the audio.

The main benefits of the RGC..32 include the fact it has the highest amperage rating of any 17.8 or 22.5mm wide solid state switching devices available on the market, DIN rail spacing over 22.5 mm platform, optional cage clamp power terminal for wires up to 3 AWG size, and energy savings due to lower power dissipation.

In air conditioning, we are given a gift by equipment manufacturers on the equipment data tags: the minimum circuit ampacity (MCA) and MOCP or max fuse/max circuit breaker rating.

It’s not voltage that kills you, it is current acoss the chest ie heart. Hence so called medical coils of the 19th century and high frequency tesla coils and drawing arcs to your skin that do not kill you. I knew a TV engineer that tested high voltage triplers for CRT TV’s by drawing an arc to his finger. The path is the issue and the current available.

The second was in an industrial setting, working on repairing a 480v-supplied welder in a hard-wired installation. Plant electrician assured me the circuit was locked & tagged out. I trusted him. Sprayed some contact cleaner on the mains relay to start, and took 480v up the spray and into the can (and my hands holding it). That was an unusual sensation.

And even today people give the advice of plugging a computer in the wall and grabbing the metal case as you’re working inside it. Bad idea – if the PSU has failed, you may very well have live voltages in the boards.

Japan is odd for another reason. The two “halves” of the country are on different frequencies. I believe the West is at 50 Hz and the East and North is 60 Hz. They have a collection of DC interconnects in the middle of the country to facilitate power sharing across this otherwise intransigent gap. Since the shutdown of Fukushima, those interconnects have been under quite a bit of strain, but that’s a whole ‘nother story.