10kV line construction plan, 110kV line erection construction plan

Hello, I am glad to answer for you (* 110kV line frame construction scheme cable laying: process: material 1 transportation, storage - cable pipe laying and cable tray installation - insulation resistance test before cable installation - cable laying.

1) Before the cable is laid, the completeness of the bridge and the integrity of the paint should be checked, and the cable model, voltage and specification should be in line with the spine design, and there is a product certificate. (2) When the cable is laid, there should be a spare length in its terminal and cable tray or cable trench. (3) When the cable is laid vertically on the bridge, the head and end of the power cable and the two ends of the turn and joint should be fixed.

4) The bending radius of the plastic insulated cable is not less than 10 times of the outer diameter of the cable. (5) When the cable is laid, the cable should be drawn from the upper end of the plate, and the friction and drag of the cable on the bracket and the ground should be avoided, and there should be no mechanical damage on the surface of the cable. (6) When laying cables, cables should not be crossed, cables should be arranged neatly, cable terminals, cable connections, cable wells should be installed at both ends of the signs, signs should indicate the line number (when the design is not numbered, the model, specifications and starting and ending locations should be indicated), the handwriting of the brand should be clear, not easy to fall off.

The specifications of the sign should be uniform, it should be anti-corrosion, and it should be firmly hung. (7) When the cable enters the cable trench, building, panel (cabinet) and penetrates the pipe, the entrance and exit should be closed, and the nozzle should be sealed. (8) The cable terminal and cable joint should be checked before production to ensure that the phase is correct, and the insulating material used should meet the requirements of 110kV construction specifications?

1. The full length of the cable trench should be equipped with a continuous grounding wire device, and the specifications of the grounding wire should meet the requirements of the specification. The metal bracket, the metal sheath and the armor layer of the cable should all be connected with the grounding device, which is to avoid the potential difference between the cable sheath and the metal bracket, so that the alternating current erosion or the unit difference is too high to endanger personal safety. 2. For cables laid in cable trenches that are not filled with yellow sand, bare armor or non-flammable outer sheath cables should be used for fire prevention.

3. If there is a joint on the cable line, in order to prevent the joint from failing to affect the adjacent cable, the joint can be protected with a fire protection repentance box or other fire prevention measures. 4. Cables can be directly placed at the bottom of the cable trench, and brackets can also be installed in the trench to increase the number of laying cables. 5. The cable is fixed on the bracket, and when the horizontal device is installed, the power cable and control cable with an outer diameter of no more than 50mm are supported every other time; Power cables with an outer diameter greater than 50mm, every other support.

Single-core cables arranged in a regular triangle should be fastened with straps at regular intervals. When it is installed vertically, it should be fixed at regular intervals. 6. The metal structures in the cable trench need to be galvanized or coated with anti-rust paint anti-corrosion measures.

7. The power cable and the control cable should be installed on the brackets on both sides of the ditch. If the conditions are not met, the power cable should be placed on the bracket above the control cable.

For 5 consecutive days, the average daily temperature is lower than 5 degrees, which should be the foundation of winter construction, and there is no concept of winter.