A headlight was installed in the living room of the new house, but as soon as it was turned on after

If the lamp is fine, then according to your situation, you will drill the wire when drilling, and you have to change the wire or wiring again, if the wire is used through the pipe, you can find an electrician to pull out the wire and reconnect it or change the wire. If the wire is not pipe-through, then it can only be surface-mounted.

It should be a leakage or a short circuit. It's best to find an electrician to test the instrument. I used to have an electric kettle at home, and as soon as I plugged it in, the whole building tripped. Later, it was checked that it was caused by the aging and leakage of the kettle wire.

It can't be just on the wire, is it that the light is not connected correctly, and whether the light is too on, and your switch is too small

It is estimated that only one more open line can be pulled to replace the line that has been leaking. If you don't have professional knowledge, you can use the method of replacing the test one by one, tripping is not terrible, just be careful when wiring, remember to operate after power-off.