Intelligent insulated overhead cable structure design

Strengthen the core of choice

Due to the long distance, large span aerial cable, we should first consider the cable has higher tensile strength, in the general line, we will with a steel strand as a strengthen core, but in recent years, steel strand has strengthened the core of the increasingly prominent, such as weight, the shortcomings of corrosion resistance is poor, the shortcomings of the testing. Finally, we choose the bar in carbon fiber as reinforced core and carbon fiber core has the following advantages:

1. High strength. In the same section, the core shaft is carbon fiber, the steel core is 2 times, and the steel core is 1 / 3 times.

2. Corrosion resistance. Carbon fiber core is used as insulating material, aluminum conductor can not react to avoid wire and electrochemical corrosion problems.

3. Low cost. Because of its high strength, it can increase the span, reduce the number of towers, increase the cost of laying efficiency and total tower, and reduce the cost of parts.

Light unit

The insulation of the aerial cable, which is mainly determined by the change in the optical fiber transmission optical signal, is the sickle of the insulation temperature, so must determine the fiber. We adopt the main structural form of the stainless steel tube light unit since it can be filled with grease and from corrosion protection, it can provide more protection than the long fiber and fiber radial compression. 

Because stainless steel pipe and the contact line surface do not produce a potential difference, so we do not consider the corrosion that occurred), but in copper conductor lines, coated stainless steel tube of a layer of copper layer potential to eliminate the difference.

Insulation selection

Insulated aerial cable, plays a very important role, for an ordinary PVC insulated, PE insulation material and a can of dilemma meet long-term sunshine, acid, alkali, and other harsh environmental conditions should be in the intelligent cable cross linked polyolefin insulation materials of radiation and thermal resistance, insoluble, melt, not combustion, high mechanical strength, heat resistance and distortion, good crack resistance.

With the increase in the level of industrial automation, With the increasing amount of aerial cable, cable fire accident probability increase. 

At present, it is commonly used in the traditional cable as the power transmission, the joint application of the software and the background of intelligent aerial cable, the insulation conductor temperature can be obtained by the sickle, the tension changes. At the same time, the alarm reminds us, of the line to protect the role of. At the same time, it is the photoelectric smart aerial cable and composite structure, to avoid the two construction and save the cost.