As long as the electrical performance of products is involved, there will be fuses. Although the fuse may not attract everyone’s attention in the circuit, it plays a very important role. When the circuit fails or is abnormal, the current increases continuously. Moreover, the increased current may damage some important or valuable components in the circuit, and may also burn the circuit or even cause a fire. If the fuse is correctly placed in the circuit, the fuse will fuse itself to cut off the current when the current abnormally rises to a certain height and a certain time, thus protecting the safe operation of the circuit. This article will talk about the routine maintenance and possible faults of the fuse. For reference only.
1. Daily maintenance
As the fuse is placed in the fuse box, no special maintenance is required under normal circumstances. However, it should be noted that if the fuse box cover is lost, the fuse must not be exposed. To avoid short circuit of fuse. In addition, when covering the fuse, other materials shall not be used at will. Because insulation and high temperature resistance are fully considered for the material of the fuse box, covering the fuse with other materials at will may cause fire hazard.
2. Fuse introduction
At present, there are two cases of excavator fuse blowing. First, the load of electrical appliances is too large. Second, there is a short circuit in the circuit. The main reasons for the excessive load of electrical appliances are the disorderly modification of lamps or excavator equipment, the use of inferior cigarette lighter adapters, and the connection of high-power electrical appliances to cigarette lighters. Therefore, it is reminded that before changing the circuit, the power and maximum load of the original auxiliary electrical appliance of the excavator should be known in advance. For example, if the wattage of the modified headlight is higher than the factory setting value, the headlight fuse may be damaged. If the electric appliance of the excavator has not undergone any change and the fuse is blown, check whether the circuit is short circuited. Visually observe whether there is short circuit caused by aging of wire rubber and bare metal wires. In addition, during internal cleaning, avoid touching the electric wire.
