How to maintain TUV DC Solar cable

1. The cable should not run under overload, and the lead package of the cable should not expand or crack.

2. The parts of the cables entering and leaving the equipment should be sealed well, and there should be no holes with a diameter greater than 10mm, otherwise they should be blocked with fire blocking mud walls.

3. In the place where the cable has too much pressure and tension on the equipment shell, the supporting point of the cable should be intact.

4. There should be no perforations, cracks and significant unevenness at the mouth of the cable protection steel pipe, the inner wall should be smooth, the metal cable pipe should not be severely corroded, and there should be no burrs, hard objects, and garbage. If there are burrs, use the cable after filing. The jacket is wrapped and tied.

5. The accumulations and garbage in the outdoor cable well should be cleaned up in time. If the cable sheath is damaged, it should be dealt with.

6. When checking the open ditch of the indoor cable, it is necessary to prevent damage to the cable and ensure that the bracket is grounded and the heat dissipation in the ditch is good.

7. The stakes along the direct buried cable line should be intact, and the ground near the path should not be excavated to ensure that no heavy objects, building materials and temporary facilities are stacked on the ground along the path, and no corrosive substances are discharged to ensure that the outdoor exposed ground cable protection facilities are intact.

8. Ensure that the cover plate of the cable trench or cable well is intact, there should be no water or debris in the trench, ensure that the bracket in the trench should be firm, whether there is corrosion or looseness, and the sheath and armor of the armored cable should not be seriously damaged. Rust.

9. For multiple cables laid in parallel, the current distribution and the temperature of the cable sheath should be checked to prevent the cables from burning out the connection points due to poor contact.

10. Ensure that the cable terminal is well grounded, the insulating sleeve is intact, clean, and has no traces of flashover discharge, and ensure that the color of the cable should be obvious. During maintenance, insulating gloves must be worn, and the operating tools used are produced by regular manufacturers.