Feb 25, 2023
1. Power system
The wire and cable products used mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber cables, overhead insulated cables), branch cables (replacing some busbars), electromagnetic wires and electrical equipment wires and cables for power equipment.
2. Information transmission
The wires and cables used in the information transmission system mainly include local telephone cables, television cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communication or other composite cables.
3. Instrument system
This part has applications in almost all other products except overhead bare wires, but mainly power cables, electromagnetic wires, data cables, instrumentation cables, etc
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1. Power system
The wire and cable products used mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber cables, overhead insulated cables), branch cables (replacing some busbars), electromagnetic wires and electrical equipment wires and cables for power equipment.
2. Information transmission
The wires and cables used in the information transmission system mainly include local telephone cables, television cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communication or other composite cables.
3. Instrument system
This part has applications in almost all other products except overhead bare wires, but mainly power cables, electromagnetic wires, data cables, instrumentation cables, etc.
Extended Information:
Cable safety requirements:
1. When the cables cross each other, the high-voltage cable should be under the low-voltage cable. If one of the cables is protected by pipes or separated by a partition within 1m before and after the intersection, the minimum allowable distance is 0.25m.
2. When the cable and the thermal pipeline are close to or crossed, if there are thermal insulation measures, the minimum distance between parallel and cross is 0.5m and 0.25m respectively.
3. When the cable crosses the railway or road, it should be protected through the pipe, and the protective pipe should extend beyond the track or road surface 2m away.
4. The distance between the cable and the foundation of the building should ensure that the cable is buried outside the loose water of the building; When the cable is introduced into the building, it should be protected through the pipe, and the protective pipe should also extend beyond the loose water of the building.
5. The distance between the cable directly buried in the ground and the grounding of the general grounding device should be 0.25~0.5m; The buried depth of cables directly buried in the ground should generally not be less than 0.7m, and should be buried under the permafrost.