Intelligent overhead cable structure

Due to the long distance, large span Aerial cable, we should first think of the cable to have greater tensile strength, in ordinary wire, we will with steel strand as a reinforcing core, but in recent years, steel strand to strengthen the core of the drawbacks of the increasingly prominent, such as weight, the disadvantages of poor corrosion resistance; the detection of, finally we choose the bars at the carbon fiber as the reinforcing core, the carbon fiber core has the following advantages:

1. High strength. In the same section, the mandrel is carbon fiber is two times as strong as steel core, steel core and quality is 1/3 times.

2. Corrosion resistance. Carbon fiber mandrel is used as insulation materials, and aluminum conductors can not occur any reaction and avoid the electric wire and electrochemical corrosion problems.

3. Low cost. Due to the relatively high strength, can increase the span of laying, reduce the towering quantity, improve the laying of efficiency, and total tower costs, and accessories costs will be reduced.

light unit

The intelligent aerial cable is transmitted by the optical fiber in the optical element to the signal, so as to change the insulation temperature, so the optical fiber is determined. We adopt the light unit for stainless steel tubes, mainly because the structure form can be filled with grease to protect the fiber from corrosion and can provide much more than a long fiber, and fiber to provide radial compressive protection. Due to the stainless steel tube and wire surface contact does not produce a potential difference, so we do not consider the occurrence of corrosion, but when the conductor is a copper wire, stainless steel pipe coating a layer of the copper layer to eliminate potential difference,

Selection of insulation

Aerial cable for insulation plays a very important role, the general common insulating materials PVC and polyethylene insulation can not meet the long-term sunshine, acid, alkali, and other harsh conditions, so the intelligent cable should be the radiation cross-linked polyolefin insulation material with heat resistance, insoluble, does not melt, not combustion, high mechanical strength, heat distortion resistance, cracking resistance and excellent performance.