50 or 30 amp RV plug vs welder plug
Posted: Tue Oct 01, 2019 8:12 am
I'm not an electrician or electrical engineer.
I understand that a 240volt welder plug has only three prongs (I believe two hots and a common). Am I correct so far? If so, what about the ground? Does a welder not have a ground wire?
An 50 amp RV plug will have four prongs: a pair hots, a common, and a ground.
Lets say an enclosed utility trailer has a freezer, a couple of refrigerators, and a few outlets for food prep machinery. The trailer is used for cooking and preparing food. The trailer has a 30amp RV plug plugged into an onboard generator. The trailer owner has used an adapter to plug the trailer into a 50amp RV outlet.
I've been told ... NEVER, NEVER, EVER plug an RV into a welder outlet (using a homemade adapter) because the welder outlet has no grounding protection and this could/will cause serious problems for the equipment and devices plugged into.
I would like to be schooled on what the deal is with this. I believe the warnings are probably correct, but I don't completely understand the issued because the warnings. Is the risk there, but very unlikely to occur? Or is the risk very likely to occur?
I understand that a 240volt welder plug has only three prongs (I believe two hots and a common). Am I correct so far? If so, what about the ground? Does a welder not have a ground wire?
An 50 amp RV plug will have four prongs: a pair hots, a common, and a ground.
Lets say an enclosed utility trailer has a freezer, a couple of refrigerators, and a few outlets for food prep machinery. The trailer is used for cooking and preparing food. The trailer has a 30amp RV plug plugged into an onboard generator. The trailer owner has used an adapter to plug the trailer into a 50amp RV outlet.
I've been told ... NEVER, NEVER, EVER plug an RV into a welder outlet (using a homemade adapter) because the welder outlet has no grounding protection and this could/will cause serious problems for the equipment and devices plugged into.
I would like to be schooled on what the deal is with this. I believe the warnings are probably correct, but I don't completely understand the issued because the warnings. Is the risk there, but very unlikely to occur? Or is the risk very likely to occur?