rlw999 wrote:
But the bigger question is, how did you backfeed it? If you don't have a transfer switch and you were able to feed 120VAC into the inverter, then it seems like you could also backfeed 120VAC from the inverter into the shorepower cable, which is a safety hazard for you and for the electrician that's working on restoring campground power and doesn't realize that you energized the "dead" circuit.
This! PLEASE, install a transfer switch or put in a receptacle fed by the inverter to accept the RV power plug. Carrying on with the current setup could leave someone injured or dead.