1)You’d better have a single line for the refrigerator instead of sharing a line with other electrical appliances.

Although the refrigerator power is small, due to it starts up frequently and the starting current is high. If it shares the same circuit with other electrical appliances, which may cause the other appliances to lose their power instantaneously. In addition, it will shorten the life of the appliances if you plug it for a long term.

2)Sure, considering the electric kettle is a type of pure resistance electrical appliance. If you still want to plug an electric kettle and a refrigerator on the same circuit, we suggest that the power of electric kettle should not exceed 1500 w.