The construction of cost-effective and profitable photovoltaic power plants represents the most important goal and core competitiveness of all solar manufacturers. In fact, profitability depends not only on the efficiency, or the high performance of the solar modules themselves but also on the accessories of the modules. Choosing high-quality solar cables can avoid unprofitable solar systems due to high repair and maintenance costs.

Usually, people do not regard the wiring system connecting the photovoltaic module and the inverter as a key component. In fact, solar systems are often used under harsh environmental conditions, such as high temperatures and ultraviolet radiation. In Europe, sunny days will cause the field temperature of the solar system to reach 100°C, and most rubber cables are not suitable. The rated temperature of the solar DC cable is 120°C (usable for 20,000 hours). This rating is equivalent to 18 years of use under continuous temperature conditions of 90°C; and when the temperature is lower than 90°C, its service life is longer. Generally, the service life of solar DC cables should reach more than 25 years.

Solar DC cables can be routed on the sharp edges of the roof structure during installation and maintenance. At the same time, the cables must withstand pressure, bending, tension, cross tensile loads, and strong impacts. If the cable sheath is not strong enough, the cable insulation layer will be severely damaged, which will affect the service life of the entire cable, or cause short-circuit, fire, and personal injury hazards.

The material cross-linked by radiation has high mechanical strength. The cross-linking process changes the chemical structure of the polymer, the fusible thermoplastic material is converted to the non-fusible elastomer material, and the cross-linking radiation significantly improves the thermal, mechanical, and chemical properties of the cable insulation material.