1, overload or short-circuit: the fuse is blown due to dental veneer machine overload or short-circuit caused by the machine overload or short-circuit, when the machine is overloaded or short-circuit, the current will increase dramatically, exceeding the rated current carrying capacity of the fuse, resulting in the fuse blown.
2. Wrong power supply voltage: the dental tablet machine is connected to the wrong power supply voltage, which will lead to excessive current, the fuse capacity is not enough to withstand, resulting in a blown fuse.