Now officially put into use in the citysmcCable branch box，Whether it is the neglect of some managers or after a long time of work, there will be more or less problems of varying degrees.
1equipmentSevere internal rust
initial equipmentsmcCable branch boxIt has been used for a long time, and the production material is mainly iron. In case of heavy rain, the rainwater willsmcCable branch boxIf the outside is scoured, an appropriate amount of water will enter the inside, which will inevitably cause rust and corrosion marks. In addition, iron materials are prone to rust under low temperature and high humidity.
In practice, most branch boxes are located in cable tunnels and passages. The temperature difference between day and night is large in winter, and water droplets will condense inside, which will directly cause corona phenomenon on some cable terminals due to humidity, and then generate carbon deposits, which will seriously damage the shell. Judging from the current situation, repairers still have no suitable solution for the long-term rusting of electrical equipment, which brings certain risks to the safety assurance of operators during operation.
2Unreasonable line selection
The selection of the line plays a vital role in the installation of the cable, and the installation personnel should choose the most appropriate and reasonable installation plan.samesmcCable branch boxThere are many users on the network, once the user line is defective, the entire line will be“one size fits all”， Branch box defects are often the same, and defects caused by this cause are difficult to clean. In order to avoid inconvenience caused by home inspection, the selection of lines must be prudent and reasonable.
3Poor operation and maintenance
equipmentsmcCable branch box Finally, the operators should carry out maintenance and protection on time, but in actual operation, the operation and maintenance personnel can only carry out surface treatment, which cannot meet the relevant specific requirements. Therefore, when there is a defect in the electrical equipment, the operator cannot find the problem in time. In the later stages of the operation of the branch box, the problem will become more serious,smcCable branch box Damage may even occur. In addition to the lack of serious inspection work, the equipment itself cannot cope with the blockage of the entrance and exit, and the problem of insufficient number of ventilation holes of the branch box cables that have been used for a long time has not been dealt with in time, which leads to poor operation and maintenance work and leads to branching The box was repeatedly defective.
