Traditional Culture Encyclopedia - Hotel franchise - Room 98 of chain hotel uses electricity, air conditioner 1, electric water heater 1500, electric kettle, 500w, what capacity circuit breakers and wire diameters are needed for TV and lighting?

Room 98 of chain hotel uses electricity, air conditioner 1, electric water heater 1500, electric kettle, 500w, what capacity circuit breakers and wire diameters are needed for TV and lighting?

The air conditioner is about 800 watts+water heater 1500+ electric kettle 500, and the TV and lighting points are about 100 watts, with a total electricity consumption of about 2.9 kilowatts. The usual calculation method is: power/voltage = current (2900/220 =13.2a). The safe current carrying capacity of copper wire is 65438. The fuse should be selected to be 1.5 times higher than the current, that is, about 20 A. If there is anything wrong, please advise.