Scott'n'Wendy
Senior Member
Because the breaker didn't see 30 amps or the breaker was faulty. The cord set did not have to see over 30 amps for a bad connection to melt down the plugs.Then why didn't the breaker trip?
Because the breaker didn't see 30 amps or the breaker was faulty. The cord set did not have to see over 30 amps for a bad connection to melt down the plugs.Then why didn't the breaker trip?
You can't know that with the info provided.If he was plugged into the 50 amp breaker with a 50 amp to 30 amp dog bone, then that probably would not trip the breaker. A 30 amp breaker should have tripped.
I said “if”.You can't know that with the info provided.
I will never let that one go! Nor the one where I misplaced a decimal point and lost 25 points on a Dynamics exam. I was super prepared. Exam question was a slightly modified version of a homework problem. A spinning disk with a rectangular bar pinned out near one edge. My work was perfect until the last step when I substituted the mass from the homework problem (10g) for the 100g on the exam. My answer was 10.8N. The correct answer was 108N. Got a 78 (a D) when I would have gotten 104 out of 100 with the decimal in the right place. Dr. Wong was a jerk.Time to let it go John...lol
He wanted current squared. That’s just a math function. Heat is a function of current and resistance. Period!What was his "correct" answer?
He wanted time in there as well?
. Got a 78 (a D) when I would have gotten 104 out of 100 with the decimal in the right place. Dr. Wong was a jerk.
I asked this question in post 10 but the OP has not responded to it.If he was plugged into the 50 amp breaker with a 50 amp to 30 amp dog bone, then that probably would not trip the breaker. A 30 amp breaker should have tripped.
So if you understand electricity, it's okay to use dogbones at both ends? Why would understanding help with the potential issues?If one doesn’t understand electricity, they should never use dogbones on both ends.
So if you understand electricity, it's okay to use dogbones at both ends? Why would understanding help with the potential issues?
Ya, what coglesby said. There are dogbone adapters available on amazon and similar sites that should not be available..... which leaves a #10 cord 'protected' by a 50 amp breaker.So if you understand electricity, it's okay to use dogbones at both ends? Why would understanding help with the potential issues?
Those are widely available and have a place when used properly. We don't even know if the OP used a dogbone - he's never said.Ya, what coglesby said. There are dogbone adapters available on amazon and similar sites that should not be available..... which leaves a #10 cord 'protected' by a 50 amp breaker.
With a 30A surge protector and a 50A coach I assumed he used a dogbone but I think the problem was corroded receptacle and plug.Those are widely available and have a place when used properly. We don't even know if the OP used a dogbone - he's never said.
There are non-code adapters out there that allow you to plug into a 50a service breaker and attach a 30a extension cord to it. It is not possible for such a device to be used properly. It is dangerous and there are lots of people who have them believe they are doing things properly with it but don't realize they have conditions for severely overloading their cord.Those are widely available and have a place when used properly. We don't even know if the OP used a dogbone - he's never said.
Easy to happen. Most electrical contacts are just plated with a thin layer of brass. The base metal will rust when the brass gets abraded. People grease them thinking it helps, but it just catches sand and turns into sandpaper.I’ve had this happen with no dogbone or extension cord because I let the plug prongs get corroded.
Yep. My bad! I was using 2 portable electric heaters (low setting) and electric "fireplace" to provide heat in cold South Carolina weather early January (2025). My "rig" is wired for 50amp (though I have only 1 roof-top A/C). You all know how heavy and cumbersome 50amp cables are. . . . I switched to 30amp, buying used cable & surge protection. Mistake! Thank the Lord I was present when this cable burned up-quickly turn off breaker with no subsequent damage. Lesson learned . . . 50amp more efficient and would have prevented possible tragedy.
CorYep. My bad! I was using 2 portable electric heaters (low setting) and electric "fireplace" to provide heat in cold South Carolina weather early January (2025). My "rig" is wired for 50amp (though I have only 1 roof-top A/C). You all know how heavy and cumbersome 50amp cables are. . . . I switched to 30amp, buying used cable & surge protection. Mistake! Thank the Lord I was present when this cable burned up-quickly turn off breaker with no subsequent damage. Lesson learned . . . 50amp more efficient and would have prevented possible tragedy.
Corrosion or loose connections would damage the plugs like that. Never good to double up plugs like that. Dog bones and surge protectors together are not good. Every extra connection can cause problems. Surge protectors arent worth the money just problems.Were your plugs were left out in the weather and got wet and then corroded adding significant resistance in the plug area?