What happens if you plug a 50 Amp RV into 22V welder plug

All modern appliances have two hot, one neutral and one ground.

RoyB wrote:
Maybe this helps....

This is how a typical house is wired with a split phase (aka single phase) 3-wire 120V/240V service wiring.



Most residential and light commercial homes in U.S. have a single-phase 3-wire 120V/240V service. It consists of two inverted relative to each other lines and grounded neutral. Connecting an electric load between any line and the neutral yields 120 volts AC. Connecting between both lines yields 240 volts AC. The two 120V lines are derived from a step-down distribution transformer, which is usually mounted on a pole. Its secondary winding has a grounded center tap connected to neutral wire. The two end terminals are electrically “hot” with respect to the neutral. Note that both lines are derived from the same utility phase. That’s why such configuration is often called “split phase”. The three conductors go from the pole to your electric meter. From the meter they run to the panel containing the main service disconnect. From there the lines go to magnetic circuit breakers that protect individual branches. The branch breakers can be mounted in a separate distribution panel or can be incorporated into the main panel.

(This is from google search source)

Maybe someone can take this and explain how to use the 240VAC WELDER connection to be used for a RV50 AMP four wire connection where the RV 50AMP Shore Power cable can be plugged into this house system shown....

What confuses me is when installing the sub panel as shown below is where the "GREEN" Earth ground goes. Notice Earth ground is connected directly to the main panel shown above NEUTRAL Connection.. The Earth ground and the NEUTRAL are separated in the sub panel connections.


Roy Ken

Roy, the ground(green wire) in a sub panel has to be separate from the neutral per the NEC. It is the same way in all tt,5th,modular homes.

RoyB wrote:
qtla9111 - if that was responding to what I just posted you are probably right... I should get out of the mix I guess... I might want to wire in a sub-panel myself someday and right now I don't know what to do with the "GREEN" Earth Ground wires. Always been under the assumption you should only have one earth ground and in this case that would be at the meter location. We just had a lightning strike near miss here a couple weeks back so I got to watch the Power Company troubleshoot my NEUTRAL and EARTH GROUND connections. They found a LOOSE NEUTRAL GROUND connections and fixed that - all is normal again now in my house 120VAC circuits. My house is wired just like the top diagram in my other post...

INteresting at the least...

Roy Ken

Wasn't meant agaisnt you, I have problems with electricity. But reading this thread would confuse anybody. So many conflicting ideas.

Have the proper plug installed, whats it going to cost really??? you bought the rig and payed how much, now don't take a short cut when hooking it up
the best way to do this is hire an expert, someone who is licenced with a business and insurance so if he smokes your rig, his insurance will fix it.
if you smoke it who pays to fix it?


dam!! I have "3" 30 amp RV plugs around my place

Here is pretty good discussion of why the NEUTRAL WHITE CABLE is so important in a split phase 240VAC single phase circuit...

LOOSE NEUTRAL CONNECTIONS

good readings
Roy Ken

qtla9111 wrote:
Four pages, and to someone who knows nothing about electricity, this would confuse the heck out of them. What a mess.

If you know nothing about electricity I would just call an electrician and have them set it up for you. Install the proper breakers, outlets, and test it for you. It really is not that difficult, but with electricity and expensive equipment I would be extra careful. (and I know what I am doing)

A couple hundred bucks to an electrician, might save you thousands.

I am going to run a 50/30/15 amp line out to my camper. I only need a 15 amp outlet for the battery charger, (and fridge if needed) I am only running the line once so I will go ahead a run 50 amps. The cost is a lot higher, but I will be saving time and effort of doing the job twice.

As for the welder plug working with your rig, I would have to look at it, and put a meter on it be for I plugged my rig into it.

qtla9111 - if that was responding to what I just posted you are probably right... I should get out of the mix I guess... I might want to wire in a sub-panel myself someday and right now I don't know what to do with the "GREEN" Earth Ground wires. Always been under the assumption you should only have one earth ground and in this case that would be at the meter location. We just had a lightning strike near miss here a couple weeks back so I got to watch the Power Company troubleshoot my NEUTRAL and EARTH GROUND connections. They found a LOOSE NEUTRAL GROUND connections and fixed that - all is normal again now in my house 120VAC circuits. My house is wired just like the top diagram in my other post...

INteresting at the least...

Roy Ken

tvman44 wrote:
If it is a 4 wire receptacle with a ground, neutral & 2 hots it will work fine. If it is only 3 wire like most welding machines 2 hots & a ground it could be disastrous. :(

X2

Four pages, and to someone who knows nothing about electricity, this would confuse the heck out of them. What a mess.

Maybe this helps....

This is how a typical house is wired with a split phase (aka single phase) 3-wire 120V/240V service wiring.



Most residential and light commercial homes in U.S. have a single-phase 3-wire 120V/240V service. It consists of two inverted relative to each other lines and grounded neutral. Connecting an electric load between any line and the neutral yields 120 volts AC. Connecting between both lines yields 240 volts AC. The two 120V lines are derived from a step-down distribution transformer, which is usually mounted on a pole. Its secondary winding has a grounded center tap connected to neutral wire. The two end terminals are electrically “hot” with respect to the neutral. Note that both lines are derived from the same utility phase. That’s why such configuration is often called “split phase”. The three conductors go from the pole to your electric meter. From the meter they run to the panel containing the main service disconnect. From there the lines go to magnetic circuit breakers that protect individual branches. The branch breakers can be mounted in a separate distribution panel or can be incorporated into the main panel.

(This is from google search source)

Maybe someone can take this and explain how to use the 240VAC WELDER connection to be used for a RV50 AMP four wire connection where the RV 50AMP Shore Power cable can be plugged into this house system shown....

What confuses me is when installing the sub panel as shown below is where the "GREEN" Earth ground goes. Notice Earth ground is connected directly to the main panel shown above NEUTRAL Connection.. The Earth ground and the NEUTRAL are separated in the sub panel connections.


Roy Ken