The instructions for a wireless headset I bought said to insert the AC adapter into a 110 volt outlet. I have a pretty high quality power strip. Would that work? How do I know what a 110 volt outlet is? Thanks.
If you live in the USA, then those things on the walls that have two little vertical slits and an adjacent round little hole are "110 volt outlets". Those things with only one vertical slit and an opposing round little hole are called women.
Your TV has a plug. It is plugged into an outlet, probably on the wall. That's the 110 volt outlet. Pull the TV plug out of the wall and look at the two metal prongs. Your AC adapter has two metal prongs that look the same as the TV plug. Put the AC adapter plug with two metal prongs into the wall where the TV was plugged.
The opposite end of the AC adapter fit into the wireless headset.
There are no 110 volt outlets, and there haven't been for over 50 years.
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It seems like old-timers refer to it as 110, and now it seems to be more commonly known as 120. At one time I thought the standard was 117 VAC, and I've also heard 115 and 125. Yet a three phase source with 120 VAC L-N is always called 208, AFAIK, even though the actual P-P voltage may vary from
200 to 225. Similarly, 480 VAC is sometimes called 440 or 460, but the L-N is always referred to as 277, which corresponds to 480 / sqrt(3). I have also heard it explained that the voltage source is described with the higher number, such as 120, 240, or 480 while the equipment nameplate is a lower number, such as 110 or 115, 220 or 230, or 440 or 460. Rather confusing. And the actual voltage can vary by 10-15%.
And the standard common NEMA 5-15 outlet
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is actually rated 125 VAC (maximum), and that is also the way fuses and circuit breakers are usually rated (125, 250, and 600 VAC are most common). These are also referred to as "Low Voltage", under 600 VAC. Then there is "Medium Voltage" 601-5000 VAC, and above that is "High Voltage", although I think there may be another class of "Very High Voltage" above 138 kV, used for transmission (as opposed to distribution).
The interesting tale I heard was that California in the 50s actually had 110v at the outlets and Leo Fender wound his guitar amplifier secondaries to give 550V on the plates of the 6L6's. Of course, if you took one of those amps with the 'California transformers' back East and ran it on 117V, it would really have a blusesy sound for a while, as the load line got pushed up into a groovy compression region. The Chief Engineer at Ace music in Miami made a good living for a couple decades replicating this setup for guitar players that could afford it and appreciate it.
Geese! You crack an old joke and someone takes offense! ;-)
The numbers have changed over the years as the distribution system was completed, with more substations. This keeps the secondaries shorter, and having a pole pig or pad mounted transformer per handful of homes makes the line voltage more stable.
The line voltage was as low as 90 volts at the end of a long line at times, but you rarely see those problems these days.
It is consistent to us. It's the outsiders who can't grasp the differences. Why use the same outlet for your electric shaver, and the electric oven, or dryer? You don't use the same plugs for three phase and single phase, so what's the difference?
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Yeah, you never know whne you'll need to power that 20' lathe with a
20 HP three phase motor in your living room.
Keep your system, but don't try to sell me on it.
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No but it sure would be nice to not need a 3 phase converter for my 5hp mill in the garage.
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OTOH, a VFD lets you adjust the speed, and straight three phase can't do that.
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