Finding out power requirements for plug replacement
Now, after some comments, my answer. The main problem of using 10A plug is not the current itself, because it can withstand a lot more current for a short period of time, but the circuit breakers (or fuses) in the main shield of the electrical installation.

After some conversation with the asker it becomes clear that in Brazil, the rated current of the circuit breakers depend on the count of the sockets connected in this circuit and 30A is not uncommon value.

So, my answer is: Yes, the inverter will work without any problems with 10A plug. There is no need to use rare special sockets.