Photovoltaic power generation, as a clean renewable energy, is gaining more and more attention by many countries around the world. As of 2021, China's installed PV capacity reached 306GW, surpassing that of the total of the EU and the US. 15 of the top 20 global PV industries are from China's PV supply chain, with China's global share in all processes exceeding 65%, while the number of patents related to Chinese PV modules reached 4089. As a photovoltaic cable for photovoltaic power generation collection and transmission, it has become a leader in the development of global photovoltaic cables with the blessing of China's strong supply chain.
Photovoltaic power generation is generally applied in the following places:
Building Roof
PV Power Plant
Corresponding PV Cable Application Places:
Common photovoltaic cable models are: PV1-F and H1Z2Z2-K.
PV1-F implementation standard is: 2 Pfg 1169/08.2007, which is the internal technical specification of TUV Rheinland. TUV Rheinland (Shanghai) uses this technical specification for the performance testing and evaluation of PV-cables. 2 Pfg 1169/08.2007 applies to single-core flexible cables (wires) with a maximum permissible DC voltage of 1.8 kV (core-to-core, non-grounded systems) for use on the DC side in PV systems. Notes: PV system: photovoltaic system (solar system); DC side: the part of the PV device between the PV cells and the DC terminals of the PV converter.
H1Z2Z2-K implementation standard is EN5018:2014. On the basis of the original PV1-F, the physical characteristics remain unchanged, and the electrical performance are much optimized, providing a more suitable DC connection cable for large inverters in the market.
Solar photovoltaic cables are generally laid outdoors and sometimes have to face harsh environments, so the temperature level in the standard is -45 ° C to 125 ° C, and the service life is 25 years. Therefore, it is difficult for ordinary silane cross-linking to perform this characteristic stably. In China, the majority of photovoltaic cable manufacturers use electron accelerator-irradiation cross-linking to produce photovoltaic cables. Manufacturers without such equipment often go to manufacturers with such equipment to process the irradiation process after receiving orders.
Polyethylene Polymer Chain Structure
Electron Accelerator Master Cylinder
Irradiation cross-linking uses high-energy electron beams generated by electron accelerators to bombard polyethylene links, opens polyethylene molecular chains with surface structure, and get grafting, thus it is changed into a three-dimensional structure of space to complete the cross-linking reaction.
In China, cable manufacturers with an output value of more than 100 million RMB (15.38M USD) can produce photovoltaic cables, and there are hundreds of such manufacturers, including nearly 100 manufacturers which possess electron accelerator irradiation equipment. There are many manufacturers that can produce and manufacture electron accelerators in China, and the irradiation processing of cables is only a part of the function. They are also committed to new material production, environmental protection, medical and health disinfection and food sterilization and preservation, etc. These technology is very mature.
There is a very strict set of procedures and regulations for the installation and use of electron accelerators. First, the site needs to be equipped with the necessary buildings for partition and protection. Second, in order to ensure people’s safety, equipment interlocking and alarm systems are required, and operators must work in accordance with the operating process. Third, the electron accelerator must be maintained regularly, and the operators must be equipped with the necessary monitoring equipment.
Electron accelerator irradiation equipment can also produce some high-performance cables. For example, China has developed a 70-year of service life high-performance wire, whose life can be as long as the service life of the house, with the characteristics of fireproof, flame retardant, low smoke and halogen-free, environmentally friendly. Such kind of wire is extruded and insulated and irradiated by electron accelerator.
Wire with 70 Years of Service Life
The Pink One Is High-Performance Wire
With China's strong manufacturing industry, we can provide photovoltaic cable solutions. We can provide turnkey of PV cable solutions. We provide a wide range of services from the design and construction of buildings(The building is special for irradiation cross-linking, 2 floors, wall is 1m thick, construction time is around 6 months in China), equipment selection, installation, commissioning, know-how transfer, and production of qualified products, training of your operators and workers, we will sent chief technician in side.