The kitchen at home is empty without jumping, and the electric pen measures the socket, the zero lin

You mean to say. Only the kitchen in your house is out of power, and the kitchen branch switch is not jumping, but the zero loop above the empty open is also electrified? Answer.

If that's the case, it has nothing to do with the zero line in your kitchen, you look at the wiring on the zero line row, if other rooms can use electricity, then the total zero line must be good, all the zero lines of the socket load are connected together, and it is not difficult to see the direction of the zero line above the empty open when you check it.

The live wire and the neutral wire are connected to the live wire, and the neutral wire may be connected to the ground wire, so you need to hire a professional electrician to prevent danger.

Are you using electricity with other people? If so, if your meter is strung on someone else's meter, it may be that the neutral line of your neighbor's line has been dropped. And not your family's.

You should make the right method, first unplug all the electrical appliances on the socket to see if it is normal, when there is no electrical appliances you should use a tool to remove the empty opening and lower mouth line to see if the empty opening and upper mouth are normal. It is advisable to get an electrician to help with the danger.

It may be induced electricity, and the neutral line and the live wire are damaged somewhere above the empty opening, causing induced electricity.