Yanbian University sleeps four people. Four computers and a water dispenser are on at the same time. Can I use a humidifier over 30 watts? What is the maximum power limit?
If your dormitory is connected with 2.5 square copper wires, the maximum safe current is 2.5x5 =12.5a. Now, according to your existing maximum power 4x200+1500 = 2,300 watts, its overload current has reached 2300 ÷ 220 ≈10.5a. ..