Hi Kayteg1,
I've had 30 amp connections from cameco female in line plugs burn up when carrying a 15 amp load. The tines had been treated with deoxit. They are simply junk connectors.
Try to find Hubble connectors if you can afford the price.
Kayteg1 wrote:
I had too many RV plugs overheating when under heavier load (AC).
Splicing brings even higher risk of overheating and when you drop such cord in dry grass and you camp in California, next thing we hear about you is headlines
"Camper died in 4000 acres brush fire"
Even if you connect 2 cords with legal plugs, put the plugs in metal box.