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 โhotโ with respect to the neutral. Note that both lines are derived from the same utility phase. Thatโs why such configuration is often called โsplit phaseโ. 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
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 โhotโ with respect to the neutral. Note that both lines are derived from the same utility phase. Thatโs why such configuration is often called โsplit phaseโ. 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
This is typical camp ground pedestal connections for both 50A and 30A RV receptacles.
This is what is required to operate the 50A and the 30A RV Trailers connections.
These are the ways to measure the receptacles to insure it is ok to use for the Rv trailers....
RV 50AMP service measurements
RV 15A/20A/30AMP service measurements
Just my thoughts
Roy Ken
This is what is required to operate the 50A and the 30A RV Trailers connections.
These are the ways to measure the receptacles to insure it is ok to use for the Rv trailers....
RV 50AMP service measurements
RV 15A/20A/30AMP service measurements
Just my thoughts
Roy Ken
Here is the picture you want:
Your RV breaker panel is just like your house panel. You have two hot sides, the sides of the outlet plug, and a neutral in the middle. Nothing in the RV is connected to both hot leads, so the 240 v you see in the top left corner should never happens. You just have to double check to make sure that either side to the bottom center is only 120v. If you wire it wrong and one of those 120 v meters is reading 240 v, you will blow up anything you connect to it.
Each side is alternating 120 v current, from plus 120 to minus 120. When you compare that to the center neutral at 0 volts, the difference between the two wires is just that 120 volts plus or minus.
The key to 240 volts is that the two sides are 180 degrees out of phase. When one side is at plus 120 volts the other side is at minus 120 volts, so at their peaks, the differences between the two voltages is 240 volts. You are comparing the two sides to each other, not to the neutral or ground.
Your RV breaker panel is just like your house panel. You have two hot sides, the sides of the outlet plug, and a neutral in the middle. Nothing in the RV is connected to both hot leads, so the 240 v you see in the top left corner should never happens. You just have to double check to make sure that either side to the bottom center is only 120v. If you wire it wrong and one of those 120 v meters is reading 240 v, you will blow up anything you connect to it.
Each side is alternating 120 v current, from plus 120 to minus 120. When you compare that to the center neutral at 0 volts, the difference between the two wires is just that 120 volts plus or minus.
The key to 240 volts is that the two sides are 180 degrees out of phase. When one side is at plus 120 volts the other side is at minus 120 volts, so at their peaks, the differences between the two voltages is 240 volts. You are comparing the two sides to each other, not to the neutral or ground.
