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Usb interface power supply replacement power supply can not solve the problem?

Usb interface power supply replacement power supply can not solve the problem?

Answer:

Photovoltaic cable structure . the conductor: IEC, 5 types of stranded tinned copper . insulation: cross-linked low smoke zero halogen flame retardant polyolefin double insulation . sheath: cross-linked low smoke zero halogen flame retardant polyolefin two Differential solar panels are often used in harsh environmental conditions, such as high temperature and ultraviolet radiation. In Europe, sunny days will result in solar system temperatures up to 100 ° C. At present, we can use a variety of materials are PVC, rubber, TPE and high-quality cross-linked materials, but unfortunately, rated temperature of 90 ° C rubber cable, and even the rated temperature of 70 ° C PVC cable Also often used in the outdoors, obviously, this will greatly affect the system life. Anti-mechanical load. In practice, during installation and maintenance, the cables can be routed on the sharp edges of the roof structure, while the cables are subject to pressure, bending, tension, cross-tensile loads and strong shocks. If the cable jacket is not strong enough, the cable insulation will be severely damaged, thus affecting the life of the entire cable, or lead to short circuit, fire and personnel damage and other problems. The cross-link process changes the chemical structure of the polymer, the fusible thermoplastic material is converted to a non-fusible elastomeric material, and the cross-link radiation significantly improves the cable insulation material The thermal properties, mechanical properties and chemical properties,
Cable any position to do the branch, do not cut off the main cable
Cross-linked polyethylene is an insulating material, cable as it is insulated, is the cross-linked cable, power cable with cross-linked insulation, is the cross-linked power cable. In addition to cross-linked polyethylene insulation, there are PVC, rubber and other insulating materials made of cable cables. Therefore, the power cable is a kind of cable, and cross-linked cable is a kind of power cable.

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