Safe to use a 30 amp Extension on 50 amp trailer at home??

pianotuna wrote:
Monitor the voltage inside the RV. As long as it stays above 107 you are golden.

Voltage is everything! Measure the voltage inside your RV when the AC unit is running. Installing a permanent voltmeter in an RV is highly recommended so you can always monitor it in your travels or at home.

I'd also add to make sure plug blades are always kept clean and shiny to ensure a good connection.

I assume the receptacle is a TT-30R wired at 120 volts and not 240 volts...