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.
