As far as photovoltaic applications are concerned, the materials used outdoors should be determined based on ultraviolet light, ozone, severe temperature changes and chemical erosion. The use of low-grade materials under this kind of environmental stress will cause the H1Z2Z2-K solar cables sheath to be fragile and even decompose the cable insulation layer. All these situations will directly increase the loss of the cable system, and at the same time the risk of cable short circuit will increase. In the medium and long term, the possibility of fire or personal injury is also higher.
The solar cable is an electron beam cross-linked H1Z2Z2-K solar cables with a rated temperature of 120°C, which can withstand harsh weather and mechanical shocks in its equipment. According to the international standard IEC216, the service life of RADOX® solar cables in outdoor environments is 8 times that of rubber cables and 32 times that of PVC cables. These cables and components not only have the best weather resistance, UV resistance and ozone resistance, but also can withstand a wider range of temperature changes (for example: from –40°C to 125°C).
In order to deal with the potential dangers caused by high temperature, manufacturers tend to use double-layer insulated rubber sheathed cables. However, the standard version of this type of cable is only allowed to be used in an environment with a maximum operating temperature of 60°C. In Europe, the temperature that can be measured on the roof is as high as 100°C.
The rated temperature of the solar H1Z2Z2-K solar cable is 120°C (usable for 20,000 hours). This rating is equivalent to 18 years of use under continuous temperature conditions of 90°C; and when the temperature is lower than 90°C, its service life is longer. Generally, the service life of solar energy equipment should reach 20 to 30 years or more.
Based on the above reasons, it is very necessary to use special solar cables and components in solar systems.
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