Crossing and spacing: When cables cross each other, high-voltage cables should be placed below low-voltage cables. If one of the cables is protected by a pipe or separated by a partition within a range of 1 meter before and after the intersection point, the minimum allowable distance is 0.25 meters.
The distance from the heating pipeline: When the cable is close to or crosses the heating pipeline, if there are insulation measures, the minimum parallel and cross distances are 0.5m and 0.25m respectively.
Crossing with railways or roads: When cables cross railways or roads, they should be protected by conduits, and the protective conduits should extend more than 2 meters beyond the tracks or road surfaces.
Distance from the building foundation: The distance between the cable and the building foundation should ensure that the cable is buried outside the building's drainage system. When cables are introduced into buildings, they should be protected by conduits, and the protective conduits should also extend beyond the building's drainage.
