Safety measures when using power cables

1. When cables cross each other, the high-voltage cable shall be below the low-voltage cable. If one of the cables is protected by a pipe or separated by a partition within 1m before or after the crossing point, the minimum permissible distance is 0.25m.2. When cables are close to or cross with heat pipes, the minimum distances for parallel and cross are 0.5m and 0.25m respectively, if there is any insulation measure.3. The cables should be protected by a pipe when they cross with railroads or roads, and the protection pipe should be stretched out beyond the track or road surface by 2m.4. Cables The distance from the foundation of the building should be able to ensure that the cable is buried in the building outside the bulk water; cable introduced into the building should be protected through the pipe, the protection pipe should also be beyond the building outside the bulk water.5. Directly buried in the ground between the cable and the general grounding device should be spaced 0.25 ~ 0.5m; directly buried in the ground cable buried depth, should not be less than 0.7m in general, and should be buried in the permafrost layer below.

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