The special DC cables for solar photovoltaic power plant power generation systems are often exposed to sunlight, and solar systems are often used under harsh environmental conditions, such as high temperature and ultraviolet radiation. In Europe, the field temperature of the solar system can be as high as 100°C on sunny days. At present. , The various materials we can use are PVC, rubber, TPE and high-quality cross-link materials, but unfortunately, rubber cables with a rated temperature of 90°C, and even PVC cables with a rated temperature of 70°C It is often used outdoors. At present, the National Golden Sun Project is frequently launched. In order to save costs, many contractors do not choose special cables for solar systems, but choose ordinary pvc cables instead of special DC cables for solar photovoltaic power generation systems. Obviously, this will Greatly affect the service life of the system.
The characteristics of the special DC cable for solar photovoltaic power station power generation system are determined by its special insulating material and sheath material, which we call cross-linked PE. After irradiation by an irradiation accelerator, the molecular structure of the cable material will change, thus Provide all aspects of performance.
The special DC cable for solar photovoltaic power station power generation system resists mechanical load. In fact, during installation and maintenance, the special DC cable for solar photovoltaic power station power generation system can be routed on the sharp edge of the roof structure, and the cable must withstand pressure, bending, tension, and crossing Tensile load and strong impact. If the strength of the special DC cable sheath for the solar photovoltaic power station power generation system is insufficient, the insulation layer of the special DC cable for the solar photovoltaic power station power generation system will be severely damaged, which will affect the entire solar photovoltaic power station power generation system dedicated DC cable Service life, or cause short circuit, fire and personal injury hazards. The materials cross-linked by radiation have high mechanical strength. The cross-linking process changes the chemical structure of the polymer, and the fusible thermoplastic material is converted into non-fusible elastomer materials. The cross-linking radiation significantly improves the solar photovoltaic power station Thermal, mechanical and chemical properties of DC cable insulation materials for power generation systems.
