Four requirements for safe laying of wires and cables_Anhui Honglin Instrument Cable Co., Ltd.

Four requirements for safe laying of wires and cables

Author：hlyb Add Time：2016-03-09 16:04:39

In order to enable users to bury wires and cables more safely, we have the following requirements.

1. When wires and cables cross each other, the high-voltage cable shall be under the low-voltage cable. If one of the cables passes through a pipe for protection or separated by a partition within 1m before and after the intersection, the allowable distance of is 0.15m.

2. When the wires and cables are close to or cross with the thermal pipeline, if there are thermal insulation measures, the parallel and cross small distances are 0.5m and 0.15m respectively. When wires and cables intersect with railways or roads, they shall be protected through pipes, which shall extend 2m beyond the track or pavement.

3. The distance between wires and cables and building foundation shall ensure that cables are buried outside the building apron; When the cable is led into the building, it shall be protected through the pipe, and the protective pipe shall also exceed the apron of the building.

4. The distance between the cable directly buried underground and the grounding of general grounding device shall be 0.15 ~ 0.5m; The buried depth of cables directly buried underground shall generally not be less than 0.7m and shall be buried under the frozen soil layer.

According to the introduction of the above four points, we can see that the laying of wires and cables is very important, because in case of failure, maintenance is inconvenient, so our installers must act strictly.

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Four requirements for safe laying of wires and cables