PV1-F 1*4
PV1-F 2*4
Photovoltaic cable
Solar technology will be one of the green energy technologies of the future. Solar energy or photovoltaic (PV) is becoming more widely used in China, and in addition to the rapid development of government-supported photovoltaic (PV) power plants, private investors are aggressively building factories and planning to put into production solar modules that are sold globally.
Photovoltaic cables, or PV-specific cables, have a conductor section of copper conductors or tinned copper conductors, insulation of irradiated cross-linked polyolefin insulation, and a sheath of irradiated cross-linked polyolefin insulation. Photovoltaic power station in a large number of DC cables need to be laid outdoors, harsh environmental conditions, the cable material should be based on the resistance to ultraviolet light, ozone, drastic temperature changes and chemical erosion, need to be moisture-proof, sunlight, cold, heat, ultraviolet resistance, some special environments need to be protected against acids and alkalis and other chemical substances.
Ordinary material cables used for a long time in that environment will lead to the cable sheath fragile, and even decomposition of the cable insulation layer. These conditions will directly damage the cable system, but also increase the risk of short-circuit cable, from the medium to long term, the possibility of fire or personnel injury is also higher, greatly affecting the service life of the system.
The advantages of photovoltaic cables compared to ordinary cables are:
Photovoltaic cables are often exposed to sunlight, and solar energy systems are often used under the premise of despicable environments, such as low temperatures and ultraviolet radiation. At home or abroad, good weather will result in solar energy systems on-site maximum temperature of up to 100 ℃.
General cable can be generally adopted in various types of materials are polyvinyl chloride (PVC), rubber, elastomer (TPE) and cross-linked polyethylene (
XLPE (XLPE) and other high-quality interwoven link material, but unfortunately the maximum rated temperature of ordinary cable work for 90, and even if the rated temperature of 70 ℃ PVC insulated cables are often used outdoors, but can not meet the high temperature, ultraviolet radiation, cold requirements.
Resistance to machine loads
Photovoltaic cable, in the placement and application, the cable can be wired on the sharp edges of the roof layout, while the cable shall be subjected to pressure, bending, tension, intertwined tensile loads and resistance to strong blow performance is superior to ordinary cables. If you use ordinary cables, the sheath anti-ultraviolet performance is poor, resulting in the aging of the cable sheath, thus affecting the service life of the cable, which can lead to short-circuit cables, fire and staff risk of injury and other issues presented. Photovoltaic cable insulation sheath after irradiation, with high temperature resistance, anti-ultraviolet radiation, oil resistance, cold resistance and other properties, service life of more than 25 years.
