30 amp to 15/20 amp adapters
I have seen many "dogbone" adapters that will plug into a 30 amp outlet allowing you to plug in any 110 cord or appliance. My concern is the circuit is rated for 30 amps. Unless you have a dead shor...
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If you mean an adapter like in the photo below, I find those are really problematic. They allow a 15 amp rated appliance or device to operate off a 30 amp breaker. Definitely not allowable by code if it was a hardwired situation within a building except for in the case of motors and welders. This adapter will not provide proper protection for wiring & downstream appliances, equipment & devices. I would say the only time they should be used is if you're stuck somewhere in hinterland and need a 15 amp recept. but there's only a 30 amp one there.
When it comes to RV adapters, it's a whole new world and you'll find ones that sometimes don't make sense compared to what's permitted in building systems. But why would you want an adapter like that? If you're in a CG, pedestals always have a 15/20 amp recept. (by code) and if you have a 30 amp RV, you wouldn't need any adapter.
Be aware that some 15 amp extension cords only have #16 gauge wire (allowed because they are in "free air"). A 16 gauge cord protected by a 30 amp breaker is a bad idea. I don't think there is such a thing as an off-the-shelf 15 amp/120 volt inline circuit breaker or fuse for outdoor use.
One thing to note about adapters and extension cords is that they aren't required to be UL or NEMA listed. Maybe that's why they can get away with selling an adapter like a 30 amp down to 15 amp.
When it comes to RV adapters, it's a whole new world and you'll find ones that sometimes don't make sense compared to what's permitted in building systems. But why would you want an adapter like that? If you're in a CG, pedestals always have a 15/20 amp recept. (by code) and if you have a 30 amp RV, you wouldn't need any adapter.
Be aware that some 15 amp extension cords only have #16 gauge wire (allowed because they are in "free air"). A 16 gauge cord protected by a 30 amp breaker is a bad idea. I don't think there is such a thing as an off-the-shelf 15 amp/120 volt inline circuit breaker or fuse for outdoor use.
One thing to note about adapters and extension cords is that they aren't required to be UL or NEMA listed. Maybe that's why they can get away with selling an adapter like a 30 amp down to 15 amp.
