What should be paid attention to in the daily operation and maintenance of photovoltaic cables?

The normal operation of photovoltaic cables is closely related to the overall power generation operations because the ability of cable lines to function properly directly affects the production safety of enterprises and the safety of employees' lives. Therefore, it is important to understand the operation and maintenance of power cables, as well as to address any wiring issues that may occur.

In the power industry, the term "cable lines" actually refers to the wires used for transmitting electrical energy through cables. Typically, it consists of cables, cable joints or splices, and cable terminations. It also includes related infrastructure such as cable trenches, conduits, vertical shafts, tunnels, etc., for cable laying. The configuration of cable lines may be adjusted according to the specific requirements of the local geographical environment and construction needs.

Now that we understand the concept of laying photovoltaic cable lines, let's discuss some operational precautions for cable lines. Firstly, avoid keeping the lines in an overloaded state for an extended period of time, as this can lead to abnormal temperature rise, which can damage the cables and shorten their lifespan. Secondly, cable feeder protection devices should not be used for reclosing operations. After a feeder trip on a cable line, it is important not to neglect cable inspection, and it is advisable to conduct cable retesting before resuming operation after a shutdown.

During the entire maintenance process of photovoltaic cable lines, the main tasks involve three aspects: load monitoring, corrosion monitoring of cable metal sheaths, and insulation monitoring. These tasks ensure that the cable equipment remains in good condition and prevent sudden cable accidents.