Hello penwia
What gauge of an extension cord are you using. If you are nearby when it trips, feel the plug ends looks for a hot connection. Place the back of your finger on the breaker that’s tripping again looking for heat. Unable to keep your finger on the breaker, or hold the plug is the weakest link.
You could be over loading the circuit but not all at once, but incremental stages of loading will trip a circuit. A clamp on amp meter would help a lot.
Russ
What gauge of an extension cord are you using. If you are nearby when it trips, feel the plug ends looks for a hot connection. Place the back of your finger on the breaker that’s tripping again looking for heat. Unable to keep your finger on the breaker, or hold the plug is the weakest link.
You could be over loading the circuit but not all at once, but incremental stages of loading will trip a circuit. A clamp on amp meter would help a lot.
Russ