What are the standards for cable trench depth and width design? What is the general width and depth design? What is the length of the cable trough? What is the vertical distance between strata? Is there a limit to the height of the floor from the height of the floor and the bottom of the cableway? More
If the water pipe is installed above the cable tray, it is not easy to open the cover of the bridge when maintenance is required Some water pipes will be condensation or leakage, the water will drop in the bridge, may affect the normal operation of the cable, or even short-circuit accidents, there are security risks
This depends on how much voltage the high voltage line landing. The The The national standard is from the high-voltage line landing center radius of 8M outside the range is absolutely safe distance. What is the distance between the feet that will cause the electric shock to see how far you are from the center of the high voltage line drop center and how high is the voltage. If there is a high voltage line falling next to you should quickly close together feet or jump out of the 8M range.
Generally do not put the same line of the tube, the impact is: there are disturbed, there is the line aging faster
