Can we stop calling it 220?
- Thread starter mrb
- Start date
creativecars
Well-known member
Yeah, 220, 221 Whatever it takes!! 
tfi racing
Well-known member
How about splitting down the middle and calling it 115 and 230,that way nobody is happy!
Gary S
Well-known member
Don't expect 220 and 110 to ever go away. In some rural parts of the country, that is all the voltage they get at the end of the line.
nominal voltages are still 120/240.....
I'm going to be installing some 118v plugs on the wall in my garage and will be running them with yellow wire.
Yeah, 220, 221 Whatever it takes!!
saw some job specs once that called for 243 Phase. (obviously a phone call was involved and the person on the receiving end did not know electricity)
Ford12508
Well-known member
It kind of irks me too. My boss always says "this is a 220V" and I say "This guy should really call the electric company if he is getting that much voltage drop"
I'll change just as soon as the 2X4 is called by its real dim's. Does this confuse you so that you cannot understand what is being talked about? The reality here is that until until the old die off and the youngsters take over you will run into people who use common old terms.
lg
no neat sig line
lg
no neat sig line
nate379
Banned
Thank You! I'm glad I'm not the only one!
I have lived in many houses all over the US over the years and I have NEVER seen anything close to 220v at the main.
I have lived in many houses all over the US over the years and I have NEVER seen anything close to 220v at the main.
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54FordPanel
Well-known member
Can we stop calling it "single phase" too?
Or am I alone in believing it's 2 phases?
Or am I alone in believing it's 2 phases?
actually it really is single phase. The phase does not refer to how many hot wires there are. There is a two phase system, but is mostly gone. I know there is still some in san francisco, and probably some old industrial areas. Two phase actually uses 4 wires. Look up Scott-T Transformer to see how two phase is connected to three phase.
Professur
Well-known member
For what little it's worth ... i'm still using my Club Price (as it was called here) member card.
OK, if we are going to go that far with it...
Then why is the + end/post of a battery the hot side which has an excess of electrons meaning it has a Negative charge! (I know the real answer, but it still confuses the heck out of high school physics students every year!)
Then why is the + end/post of a battery the hot side which has an excess of electrons meaning it has a Negative charge! (I know the real answer, but it still confuses the heck out of high school physics students every year!)
djjsr
Well-known member
I was working on one of my machines the other day that had 114V on each hot leg so I have 228 instead of 240. I want to call the power company and tell them to either send me the volts I'm missing or cut 5% off my bill.
Or maybe the meter slows down, in which case they can cut another 8 volts and it would be ok by me.
Or maybe the meter slows down, in which case they can cut another 8 volts and it would be ok by me.
There are set ups that are 120 phase to phase and 67 to ground. Not in residential. Then you got 208 3 phase, which gives you 120 single phase.
I used to do contracts with a utility, there is a pretty big + - then can give you for voltage.
I think the accepted delivery for 120/240 is +/- 10%. But 120/240 is still the best thing to call it.
For what it's worth, my Porsche engine is not really a boxer, in spite of its 180°-V architecture.
For what it's worth, my Porsche engine is not really a boxer, in spite of its 180°-V architecture.
i dont know about where you are, but here there is a somewhat narrow range of delivered voltage. +/- 3 % or something like that.
sometimes used in recording studios, they call it 'balanced power'. Also isolated hospital operating room power I think. So no phase is grounded.
ddawg16
Well-known member
Well...it really depends on how you look at it.....if it's 220/221 (love that line from "Mr Mom")...and a neutral is involve....one leg of the 240 is actually 180 deg out of phase with the other leg.....
All depends on where you are measuring from......give me a 2 channel O-Scope and I could show you 2 different phases......
Yea...I know....I'm making it more complicated that it has to be....
But your right....it's single phase...
54FordPanel
Well-known member
Ok, single phase it is.
How about "3-way switches". I think they are 2-way switches; it either throws the power this way, or that way.
Anybody with me on that one?
How about "3-way switches". I think they are 2-way switches; it either throws the power this way, or that way.
Anybody with me on that one?
weegaz22
Well-known member
Agree on the 120, 240 v reference, not the old school way. And it is single phase with each hot referred to as a "leg."
The other thing that gets me is how so many people think that in a 240V circuit the ground acts as the neutral. No, the ground is the ground, it is not a neutral and will never be a neutral. A neutral is a CURRENT CARRYING conductor. You can get yourself a really bad burn off a neutral. (Do not ask me how I know this.) The ground is the safety valve, not a current carrying conductor. When you have a 4-wire 240V application, there are two 120V legs, a ground, and a neutral that supplies the return path on one of the
120V legs.
JimDon
The other thing that gets me is how so many people think that in a 240V circuit the ground acts as the neutral. No, the ground is the ground, it is not a neutral and will never be a neutral. A neutral is a CURRENT CARRYING conductor. You can get yourself a really bad burn off a neutral. (Do not ask me how I know this.) The ground is the safety valve, not a current carrying conductor. When you have a 4-wire 240V application, there are two 120V legs, a ground, and a neutral that supplies the return path on one of the
120V legs.
JimDon
MrMark
Well-known member
You're not, because it is 2 phases.
rsanter
Well-known member
not alone
I agree
110/120 single phase
220/230 2 phase
and then there is the 3ph that has several voltages to choose from
bob
Do you actually know this?
It was a few years ago, but I thought it was higher. I was thinking closer to 10, but I can't remember. I was an industrial customer too.
But for example power is wielded at 138000, 3% of that is 4kV. At 26kV its 780 volts.
Just googled. This is from Florida. 6.6%
What is a voltage fluctuation?
A voltage fluctuation occurs when there is a dip or spike in the electrical flow to your home. The state of Florida requires that utilities normally operate within a range of +/- 8 volts (112 - 128) from standard voltage (120), but FPL prefers to keep this range within +/-6 volts (114 - 126). Fluctuations of more than 6 volts may cause your lights to dim or brighten.
MrMark
Well-known member
However it is generated, two phases are created for the user, or the system wouldn't work electrically - and that's a fact. You can call it whatever you want, but there are two phases available for the user.
creativecars
Well-known member
I keep asking for a 3-way and all I get is lip service??
creativecars
Well-known member
I'm willing to learn, but the wife kinda has a problem with it. go figure..
Alchymist
Well-known member
120/240 is single phase. Get over it. If you need to addle your brain, why is a three way switch a single pole and a 4 way a double pole. Hint - count the number of terminals on a 3 way. What did you get?
As far as phase goes, figure out whats meant by 720 deg, and 843 deg compared to reference. Then you will understand phase.
As far as phase goes, figure out whats meant by 720 deg, and 843 deg compared to reference. Then you will understand phase.
Aceman
Well-known member
MrMark
Well-known member
What do you get when you put a load across two wires of the same phase and same amplitude?
Hint: the answer will reveal how many phases exist.
Hint: the answer will reveal how many phases exist.
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With complete and many thanks to the Mike Holt Electrical Forum:
"Re: Phase A and Phase B in single phase wiring diagrams
Let's just write this off to the "What's in a name" philosophy. Call it phases A and B, or call it hot wires 1 and 2, or call it red and black, or call it Peter and Paul; it does not matter. It's still single phase. And when you connect to a 2 pole breaker, it does not matter which wire connects to which pole.
Charles E. Beck, P.E., Seattle"
Thank you Mike Holt and Thank you Charles E. Beck, PE
"Re: Phase A and Phase B in single phase wiring diagrams
Let's just write this off to the "What's in a name" philosophy. Call it phases A and B, or call it hot wires 1 and 2, or call it red and black, or call it Peter and Paul; it does not matter. It's still single phase. And when you connect to a 2 pole breaker, it does not matter which wire connects to which pole.
Charles E. Beck, P.E., Seattle"
Thank you Mike Holt and Thank you Charles E. Beck, PE
MrMark
Well-known member
Charles E. Beck, needs to go back to school.
Have him answer the above question. 240V AC residential cannot exist without two phases.
Have him answer the above question. 240V AC residential cannot exist without two phases.