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The easiest way to revolutionize your computer’s audio | Circuit Breaker Parts

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That’s also a mistake in the article, because the house ground doesn’t exactly ground the house. It just grounds the appliances. You can still have thousands of volts between a table and the wall socket ground in a thunderstorm. Even on a normal day, you have about 100 Volts per meter in potential difference just from atmospheric charges, which is why it’s a bad idea to ground the computer you’re working on unless you also ground the table, the chair, the floor and yourself.

Finally, only consider charging units that have been tested and certified for safety by an independent source like Underwriters Laboratory (UL). And if you’re having a charger installed outdoors, make sure it’s rated for that purpose.

A clean filter is vital to a well-functioning air conditioner. During the summer it is good to check your filters once a month. If you have pets, leave windows and doors open, or have allergies, you may need to change your filter more often.

Chances are almost anything you would want to power on and off through a Smart Plug will work. Lights — whether incandescent, LED, or fluorescent — are compatible as long as they are standard devices intended for use in the home (something like a street lamp or traffic light probably won’t work) and should work flawlessly. Audio-visual equipment should work provided it doesn’t need a power cycle through the built-in switch, and other smart devices like cameras or home hubs should work just fine.

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But even so, you’re not likely to be arrested for adding your own electrics, I dunno that it’s actually illegal. Charging money for it would be different. But I can imagine insurance companies would hold it against you. Any excuse, of course. You’ll have to check the teeny-weeny print in your policy, and the extra documents they didn’t send you. But it’s not impossible for someone to fuck up mains wiring and burn their house down, and that would be their fault.

The US had the luxury of a relatively new infrastructure to deal with, just like our cars we built roads to fit the cars Europeans built cars to fit the roads, high RPM small displacement, VS low RPM large displacement in US. Power in Europe had to be retrofitted into 300 year old buildings, much easier with higher voltage-thinner wires, if you have ever been over there they also run their plumbing on the outside in old buildings because there is nowhere to put it inside the walls.

> and some apartments are fed with 208V 3-phase, which provide three phases of 120V to neutral, or 208V phase-to-phase.

Level 2 charging systems come in two basic varieties, plug-in portable and wall-mounted units that are hard-wired directly to a home’s electric service. If you don’t have a closed garage and you’ll be charging the vehicle outside, local codes may require a fixed-mount unit. Otherwise a portable charger requires no professional installation, assuming you’ve added the 240-volt service line. This type can come in handy if you own two homes or will be staying with friends or family in another town and want to take the unit along for charging at your destination.

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I use a contactor with my sonoff, 1kw pool pump. The sonoff is seriously under specced for switching a pool motor.

Remember that, across the same resistance, power goes up with the square of voltage; 120v RMS can deliver 100x the wattage of a 12v supply, and 240v delivers 400x.

> those who haven had the opportunity to study electricity or had made the effort to study it. Can’t let Darwin wipe them out when they happens to the target market… Even worse is that there are people that want to build printers on their own, but are not qualified to wire stuff to line voltage safely.

My friend died of electrocution while on the job. Our mains voltage here is 240V (single phase) or 415V (three phase) and not very forgiving.


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