Against the backdrop of the global energy structure's accelerated transition to green and
low-carbon energy, photovoltaic power generation, as a representative of clean energy,
is changing the energy landscape at an unprecedented pace. As an indispensable "
blood vessel" in photovoltaic power generation systems, photovoltaic cables, with
their unique performance and reliability, have become a crucial link connecting
photovoltaic modules and inverters, ensuring efficient power transmission.
I. Unique Performance of Photovoltaic Cables
Photovoltaic cables are specifically designed for photovoltaic power generation systems,
and their performance far surpasses that of traditional cables. They utilize 125-degree
irradiated cross-linked low-smoke halogen-free flame-retardant polyolefin materials,
possessing excellent weather resistance and able to withstand the corrosive effects of
harsh environments such as ultraviolet radiation, ozone, acid rain, and salt spray. Within
a wide temperature range of -40℃ to 90℃, photovoltaic cables maintain stable electrical
performance and mechanical strength, ensuring long-term reliable operation under
extreme climatic conditions. Furthermore, their low-smoke halogen-free characteristics
effectively reduce the release of toxic fumes in the event of a fire, buying valuable time
for evacuation and firefighting.
II. Technological Advantages and Manufacturing Processes
The core advantage of photovoltaic cables lies in their irradiated cross-linking process.
Irradiation treatment of the insulation and sheath layers using an electron accelerator
forms a three-dimensional network molecular structure, significantly improving the
material's heat resistance, mechanical strength,and chemical stability. The application
of tin-plated copper conductors further enhances the cable's corrosion resistance
and conductivity, ensuring stable power transmission.
III. Selection and Installation Considerations
When selecting photovoltaic cables, matching must be made according to the project's
ambient temperature, voltage level, and wire diameter specifications. During installation,
DC-side cables must be secured using dedicated fire-resistant conduits, and joints must
be strictly waterproofed. Rooftop conduits should have bends to prevent rainwater
backflow. Avoid using non-standard "thin-gain" cables; ensure the wire diameter meets
national standards to prevent increased resistance and resulting power generation
efficiency loss.
Photovoltaic cables, with their superior performance and environmentally friendly
characteristics, have become the cornerstone of the safe operation of photovoltaic
power generation systems. With technological advancements and expanding market
demand, they will continue to provide efficient and reliable connection solutions for the
global energy transition, empowering the green energy revolution.
