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Old 05-19-2020, 09:47 PM   #2
Chuck v
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Join Date: Dec 2009
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To which pins of the regular 3-PRONG plug were each color wired? It may help us answer your question...


The four insulated wires of four different colors (Green is the ground wire and insulated and not bare copper...) in the cable would imply a 50 amp service, so if the wires used on the 3 prong plug were green to the U-ground lug, and white with red (or alternatively white with black) to the remaining to blades then that modification was only powering half of the potential loads in the trailer. The standard way to wire a 50 amp RV plug is shown below. The green wire goes to the round pin, and the white wire goes to the far blade...

Chuck
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File Type: jpg 50 amp RV service plug.jpg (38.9 KB, 11 views)
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