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When the photovoltaic cable in the operation process through a certain load current, will produce a certain amount of heat, with the increase of the cable load current, the cable surface temperature will be gradually higher, if not treated in time, the consequences can be imagined, such as PVC cable, to the core temperature of 70 degrees as the upper limit, the surface temperature will be 5-10 degrees lower, therefore, The surface temperature of photovoltaic cable is basically safe below 60 degrees. From the point of view of power maintenance, the lower the temperature, the better.
Rvv sheath line is an important part of our wire and cable. So it's not that Rvv sheath wires are not better than THHN wires and vice versa. What are the differences between the two, the two sheath lines are suitable for different applications, what are the differences between them?