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 consistent 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. cable in the bridge vertical laying, the first end of the power cable and turn, joints should be fixed at both ends. 4. plastic insulated cable bending radius is not less than 10 times the outer diameter of the cable. 5. cable laying, the cable should be drawn from the upper end of the disk, should avoid cable in the bracket and the ground friction and dragging, the surface of the cable shall not have mechanical 6. cable laying should not cross, 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, specifications, and the starting and finishing locations), the sign should be clear handwriting, not easy to fall off. Signage specifications should be uniform, should be able to anti-corrosion, hanging and mounting firmly. 7. cable into the cable trench, buildings, trays (cabinets) and through the pipe, the entrance and exit should be closed, and the mouth should be sealed. 8. cable termination and cable joints should be made before the production of a good check to ensure that the phase is correct, and the use of insulating materials should meet the requirements. 9. cable termination and cable joints should be made before the production of a good check, to ensure that the phase is correct, the use of insulation materials should meet the requirements.

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