Photovoltaic cable, also known as special photovoltaic cable, is mainly used in photovoltaic power stations, with high temperature resistance, cold resistance, oil resistance, acid and alkali resistance, uv protection, flame retardant environmental protection, long service life and other advantages, mainly used in harsh climate conditions; Common models are PV1-F, H1Z2Z2-K.
Photovoltaic cables are often exposed to sunlight, and solar systems are often used under harsh environmental conditions, such as high temperatures and ultraviolet radiation. In Europe, sunny days will result in solar system site temperatures of up to 100°C. At present, we can use all kinds of material with PVC, rubber, TPE and cross-linked with high quality material, but unfortunately, the rated temperature of 90 ° C rubber cable, and even the temperature of 70 ° C rated PVC cable is also often used outdoors, the national golden sun project horse, there are many contractors in order to save costs, not to choose cable specially used for solar system, choosing instead to replace the ordinary PVC cable photovoltaic cable, obviously, this will greatly affect the service life of the system.
The characteristic of photovoltaic cable is determined by its special insulating material and sheath material, which is called cross-linked PE. After irradiation by the irradiation accelerator, the molecular structure of the cable material will change, thus providing its performance in all aspects.
The difference between photovoltaic cable and ordinary cable
1. Photovoltaic cable:
Conductor: Copper conductor or tin-plated copper conductor
Insulation: Irradiated crosslinked polyolefin insulation
Jacket: Irradiated crosslinked polyolefin insulation
2. Ordinary cables:
Conductor: Copper conductor or tin-plated copper conductor
Insulation: POLYvinyl chloride or crosslinked polyethylene insulation
Sheath: PVC sheath
3. It can be seen from the above that the conductor used is the same as the PHOTOVOLTAIC cable.
4. The insulation and sheath of ordinary cables can be seen from the above to be different from those of photovoltaic cables.
5. Ordinary cables are only suitable for laying in ordinary environment, while photovoltaic cables can be used for laying in harsh environment.