The difference between DC photovoltaic cables、power cables for solar、cable solar 4mm2 and ordinary cables on cable materials
1. Photovoltaic cable:
Conductor: Copper conductor or tinned copper wire Conductor Insulation: Irradiation cross-linked polyolefin insulation Sheath: Irradiation cross-linked polyolefin insulation
2. Ordinary cable:
Conductor: Copper conductor or tinned copper Conductor Insulation: PVC or XLPE Insulation Sheath: Polyvinyl chloride sheath (PVC)
The characteristics of photovoltaic cables 、h1z2z2、dc solar power cableare determined by their special insulation and sheath materials for cables. We call them cross-linked PE. After being irradiated by an irradiation accelerator, the molecular structure of the cable materials will change, thus providing seven aspects of performance. . Photovoltaic cables are constantly exposed to sunlight and solar systems are often used under harsh environmental conditions such as high temperatures and UV radiation. In Europe, sunny days can lead to solar system site temperatures of up to 100°C.
During installation and maintenance, the 1500v solar wire 、electrical wire for solar can be routed over sharp edges of the roof structure while the cables have to withstand compression, bending, tension, cross tensile loads and severe impacts. If the cable sheath is not strong enough, the cable insulation will be severely damaged, affecting the service life of the entire cable or causing problems such as short circuits, fire and personal injury hazards.