Design of cables in the construction of photovoltaic power plants

Work process: material a transportation, storage - cable pipe laying and cable bridge installation - insulation resistance test before cable installation - cable laying.
1. Cable laying should be checked before the bridge is complete and paint integrity, cable type, voltage, specifications should be in line with the design, and product certification.
2. cable laying, in its terminal and cable bridge or cable trench should be left with a spare length.
3. When the cable is laid vertically on the bridge, the first and last ends of power cables and turns, joints should be fixed at both ends.
4. The bending radius of the plastic insulated cable is not less than 10 times the outer diameter of the cable.
5. cable laying, the cable should be led from the upper end of the disk, the cable should be avoided in the bracket and the ground friction drag, the surface of the cable shall not have mechanical damage.
6. cable laying should not cross, the cable should be neatly arranged, cable terminals, cable connections, cable wells should be installed at both ends of the signage, signage should indicate the line number (when the design is not numbered, then it should be marked with the model number, specifications and starting and ending locations), the sign should be clear, not easy to fall off. Signage specifications should be uniform, should be able to anti-corrosion, hanging firmly.
7. cable into the cable trench, building, disk (cabinet) and wear into the pipe, the entrance and exit should be closed, the mouth should be sealed.
8. Cable terminals and cable joints should be made before the production of a good check to ensure that the phase is correct, the use of insulating materials should meet the requirements.

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