kulas44
Guru
"thats not how it works, thats not how any of this works" .
Pucker up, bet you are gonna find 25 amps each leg.
Ok boys, try this. Take your amp meter (you do have one dont you ?) and put it on the red wire, lets say it reads 15 amps. Then put it on the black wire, lets say it reads 20 amps. Then put the black AND red in the meter, it will read 5 amps. When you actually understand why you will have grasped the concept and will have had an "aha" moment. Until then ignorance is bliss.
Ok boys, try this. Take your amp meter (you do have one dont you ?) and put it on the red wire, lets say it reads 15 amps. Then put it on the black wire, lets say it reads 20 amps. Then put the black AND red in the meter, it will read 5 amps. When you actually understand why you will have grasped the concept and will have had an "aha" moment. Until then ignorance is bliss.
No one is disputing the name...but If I put a amp meter on the red wire and add it to the black wite...50+50=100...so you tell me...it seems like you won't be happy until or you really don't see that each wire can carry 50 amps to 2 separate busses.
Yes we get the name game.... but not the misunderstanding.....
The more I read this back and forth, the more I was getting confused. Then I read this:
The 50-amp 120/240-volt 3 pole 4 wire grounding ServiceThis 50-amp service has 4 wires with two 120-volt HOT feeds. It is a misconception that this 50-amp RV service is something special. This service is a STANDARD 120/240 50-amp 3 pole with 4 prongs used for numerous applications.
From this common service we can draw 120 or 240 volts. Each leg is 50 amps @ 120 volts. 50-amp X 120-volt = 6000 watts. But since there are 2 HOT 120-volt legs at 6000 + 6000 = 12,000 watts to use in the RV or 50-amp X 240-volt = 12,000 watts when used as a 240-volt service. Almost ALL 50-amp wired RV's use both sides of the service separately as 120 volt on each leg. Only a few mostly high-end coaches utilize the 240-volt from this same service.
The 50-amp 3-pole 4-wire service is superior to the 30-amp service because of the total amperage available.
30-amp 120-volt service = 3,600 watts
50-amp 120/240-volt service = 12,000 watts
If this is true you are both right. Each leg can provide 50 amps individually or they can both be combined into a single 240 volt AC feed and provide 50 amps. The reason for the 240 is to lower the wire gauge required. I claim no special knowledge on this. I was a forestry major.
Tom
50A 125/250>>> One 4 conductor cable with one ganged 50A breaker. The 50A from the black is the same 50A current going through the red at any particular instant. Some will go out the common neutral (White) depending on how the loads are set up but what goes out the neutral is not going out the red.
Black current = White + Red.
Red current = White + Black.
100 amps through the neutral = smoke
100A 125v is two 50A 3 conductor cables with two separate 50A breakers on board and the neutrals only connected on the shore post end so that you cannot put more than 50A down the neutral.
You still cannot measure 100 amps anywhere. All of this goes back to the very basics of alternating current theory. Either you get it or you dont. When you can walk through a 138000 volt substation and know the phase angle and rotation and calculate for phase shift thru the step regulators and the required capacitance for a decent power factor to get the power to the end user (large 3 phase motors that do not run backwards) then you can tell me I dont know what I'm talking about. I do know where you guys are coming from, I once had an electrical engineer tell me to lower the voltage so we would sell more electricity. He didnt grasp the concept either, ever, as far as I know.
Correct, you will not measure over 50a in any one conductor. But you will have two conductors capable of 50a each. For a total capability of 100a at 125v. Do you disagree with this???
Yes you are correct, sometimes I forget the smiley. But when it comes to electric service you only have the size of the breaker. The utility provider says its 50 amps with a pair of 50 amp breakers. They do not add it up and call it 100 amps. Its not 150 amps in 3 phase. ITS 50 AMPS. Unless of course its 30 amps Then its just 30 amps not 30 x 2. Its 2 30 amp circuits. Nowhere will an amp meter read over the amperage of whatever a correctly rated and operating breaker will handle. The only way to get 100 amps from a 125/250v circuit is with a transformer to convert from 250 volts to 125 volts. The resulting output will be "adding" and using both legs of the 50 amp breaker available. That still does not make your service a 100 amp service, still just 50.
Yes, I do dissagree. Its kinda like having a nice conversation with a fellow hot rodder about engine modifications, cams, forged or eurectic pistons, etc. And then he says he gained 20 horsepower by putting on a K&N air filter. I usually just walk away shaking my head.
Let's change it up a little.
What if my over sized Rocna and all chain rode made my shore-cords handle more amperage??
Thank you!!!! Note the cutout from the last para....