Solar pv cable are often exposed to sunlight, and solar systems are often used in harsh environments such as high temperatures and ultraviolet radiation. In Europe, sunny days can lead to on-site solar system temperatures of up to 100°C. At present, PVC is a variety of materials we can use, rubber, TPE and high quality cross-link materials. Unfortunately, the rated temperature is 90°C rubber cable, even though the rated temperature is 70°C PVC cable is often used outdoors. At present, the National Golden Sun project is launched regularly. In order to save costs, many contractors choose ordinary PVC instead of special cables for solar systems. Obviously, replacing PV cables with cables can greatly affect the service life of the system.
The characteristics of photovoltaic cable are determined by its special insulation material and sheath material, which we call cross-linked PE. After irradiation by the irradiation accelerator, the molecular structure of the cable material will change, so as to provide various aspects of its performance.
Resistance to mechanical load
Indeed, during installation and maintenance, cables may be routed at sharp edges of the roof structure and must withstand pressure, bending, tension, cross-stretching loads and strong shocks. If the cable sheath is not strong enough, the insulation layer of the cable will be seriously damaged, affecting the service life of the cable, or leading to the danger of short circuit, fire and personal injury.