According to the capacity, insert a 40-watt straight clamp with a current of 0.2A, which will not overload. And overload tripping will take a short time to trip, not immediately.

If you insert a straight clamp and trip as soon as you turn on the switch, there are two possibilities.

1. It may be that the straight clamp is short-circuited, and it will short-circuit and trip as soon as the power supply is plugged in or the switch is turned on.

2. There may be a leak. If the main switch of your dormitory is equipped with a leakage protector, it will trip immediately.

3. Of course, it is also possible that there is something wrong with the cable tray or socket, and you plugged it in, resulting in a short circuit inside the cable tray or socket.