Some families may have encountered that the patch board on the ground was pissed by a dog. If you pay attention, you will find that the plastic of the wiring board and the plug inserted on it will emit the smell of plastic because of heat. If your dog is not trained to urinate at a fixed point, the probability of urinating on the wiring board is very high. The result is that the wiring board is short circuited. Now almost all families have short circuit protection, so when you go home, you will be very surprised why the power is off at home, but why can't you find the reason.
