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PV Cable Introduction
Photovoltaic cable is a kind of special cable used in solar photovoltaic system (PV system (photovoltaic system): photovoltaic system or solar system), which has characteristics of weather resistance, high temperature resistance, friction resistance, etc. The service life, the high-performance insulating material and sheath material after radiation crosslinking by the high-energy electron accelerator play an absolutely reliable insulating performance and mechanical performance.
According to different application environments, photovoltaic cables can be classified into:
(1). DC photovoltaic cable
Ø Series cable between components and components
Ø Parallel cables between strings and their strings to DC distribution box (converge box)
Ø Cable from DC distribution box to inverter
(2). AC photovoltaic cable
Ø Inverter to step-up transformer connection cable
Ø Connecting cable from step-up transformer to power distribution unit
Ø Connection cable from power distribution unit to grid or user
Photovoltaic cables are mainly used in outdoor environments, and can also be used to connect photovoltaic systems outside buildings and equipment within buildings. From the use of the environment performance requirements of the cable, photovoltaic cable integrates three requirements: First, the requirements of the cable flame retardant, usually this requirement is only proposed for the indoor cable; Second, the outdoor cable should have resistance UV aging, moisture resistance (including heat-resistant water hydrolysis, mildew resistance) and resistance to high and low temperature characteristics and other requirements; Third, indoor and outdoor cables will meet the requirements of resistance to thermal oxygen aging.