The service life of photovoltaic cables is influenced by various factors, including environmental conditions, maintenance, and usage methods. Generally speaking, the service life of photovoltaic cables is between 10-25 years. However, this is only a rough estimate, and the actual service life may vary depending on specific circumstances.
In harsh environments such as high temperatures or strong ultraviolet radiation, the service life of photovoltaic cables may be greatly shortened. In addition, if the protective layer of the cable is not strong enough, it may also be severely damaged, thereby affecting its lifespan.
In order to ensure the normal operation of photovoltaic cables and extend their service life, it is recommended to regularly maintain, use and manage them reasonably, and make necessary repairs and replacements according to the actual situation. Meanwhile, selecting photovoltaic cables with better materials and higher quality is also the key to extending their service life.

To extend the service life of photovoltaic cables, the following measures can be taken:
1. Correct installation and use: The cable must be installed according to the prescribed installation method to avoid excessive tension and bending, as well as to avoid impact and scratching, ensuring that the cable is not mechanically damaged. In addition, the load of the cable should be within the specified range to avoid overload operation.
2. Keep the cable clean and dry: Regularly clean the dust and dirt on the surface of the cable to prevent moisture from entering the inside of the cable, and to avoid faults such as short circuits or electric leakage. Especially in humid environments, moisture-proof measures for cables should be strengthened.
3. Regular inspection and maintenance: Regularly inspect the cables, including whether the cable sheath is intact and whether the connectors are tightened. Promptly handle any issues discovered to prevent the problem from escalating. At the same time, conduct insulation resistance and voltage resistance tests on the cables to ensure their good performance.
4. Choose appropriate cable models and specifications: Based on the actual situation of the photovoltaic power generation system, choose the appropriate cable models and specifications to avoid cable overload or underload operation. Especially in high-temperature environments, cables that are resistant to high temperatures should be selected.
5. Strengthen safety protection: Set up protective measures around the cable, such as installing protective sleeves, setting warning signs, etc., to prevent the cable from being damaged by external forces or bitten by small animals.

In summary, measures such as correct installation and use, maintaining cleanliness and dryness, regular inspection and maintenance, selecting appropriate cable models and specifications, and strengthening safety protection can effectively extend the service life of photovoltaic cables. This not only improves the stability and reliability of photovoltaic power generation systems, but also reduces maintenance costs and the frequency of cable replacement.