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The causes of general machine tool electrical faults can be roughly divided into two categories:
(1) The natural development of faulty electrical components that are used for a long period of time will inevitably result in burning of contacts, mechanical wear of moving parts such as switches and motors, and natural phenomena such as insulation of various components and wires. These phenomena cannot be planned. Prevention or exclusion will affect the normal operation of electrical equipment.
(2) Man-made faults refer to failures in electrical equipment that are not subject to undue mechanical external forces, poor quality of components, improper operation, or other reasons.
The machine tool electrical equipment is composed of various switches, buttons, contactors and other components connected by wires. In the course of their operation, various kinds of faults often occur. When a fault is encountered, it is strictly forbidden to search for it without purpose. This will not only eliminate the fault quickly, but will also increase the fault and cause a serious accident.