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Difference between photovoltaic cable and ordinary cable

Difference between photovoltaic cable and ordinary cable


Guide: the characteristics of photovoltaic cable are determined by its special insulating material and sheath material. We call it cross-linked PE. After irradiation by irradiation accelerator, the molecular structure of cable material will change, so as to provide various performances.



Photovoltaic cables are often exposed to sunlight, and solar systems are often used in harsh environmental conditions, such as high temperature and ultraviolet radiation. In Europe, sunny days will result in a field temperature of up to 100 ° C for the solar system. At present, we can use various materials such as PVC, rubber, TPE and high-quality cross link materials, but unfortunately, the rubber cable with a rated temperature of 90 ° C and even the PVC cable with a rated temperature of 70 ° C are often used outdoors. At present, the frequency of national golden sun project is on the rise, many contractors do not choose the special cable for solar system in order to save costs, but Choose the ordinary PVC cable to replace the photovoltaic cable, obviously, this will greatly affect the service life of the system.



The characteristics of photovoltaic cable are determined by its special insulating 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 its performance in various aspects.


Mechanical load resistance:


In fact, during installation and maintenance, the cable can be routed on the sharp edge of the roof structure, and the cable must bear pressure, bending, tension, cross tensile load and strong impact. If the strength of the cable sheath is not enough, the cable insulation will be seriously damaged, which will affect the service life of the whole cable, or cause short circuit, fire and personal injury.