Manufacturing method of anti-lightning strike photoelectric composite cable for communication base station

Abstract

The invention belongs to the technical field of cables, and relates to a lightning-proof optical and electric compound cable for a communication base station. The lightning-proof optical and electric compound cable comprises a cable core, an inner sheath, an armor layer, an outer sheath and a ground layer, wherein the cable core is composed of an optical unit and an electric unit, the cable core is covered by a first protective layer, the inner sheath and a second protective layer, the ground layer is arranged outside the second protective layer, the armor layer is arranged outside the ground layer, the outer sheath is arranged outside the armor layer, and the face, making contact with the ground layer, of the armor layer is a film-free face. The lightning-proof optical and electric compound cable is characterized in that the ground layer is composed of ground conductors, filling bars and a winding layer spirally arranged outside the ground conductors and the filling bars in a covering mode, the ground conductors and the filling bars are distributed outside the second protective layer in a mutually staggered mode, the diameter of the each filling bar is no larger than that of the corresponding ground conductor, the winding layer makes contact with the ground conductors and keeps electrical communication with the ground conductors, and the armor layer is located outside the winding layer. The lightning-proof optical and electric compound cable mainly has the advantages of being easy to manufacture, high in production speed, lower in electrical resistivity of the ground layer, lower in maintenance cost and cost and lighter in weight.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a lightning protection photoelectric composite cable for a communication base station and a manufacturing method thereof. Background technique [0002] In the past 20 years, my country's information industry has grown at an average annual rate of 25%, ahead of other industries, and has become the first pillar industry in the industry. It is estimated that in the next 10 years, the information industry will double again. Among the products in the communication industry, special lightning protection optical cables for communication with higher safety performance will have a good market prospect. With the construction of the 3G network communication network, the lightning protection measures of the communication base station computer room will also be considered to avoid the power interruption of the communication base station and the computer room being caught on fire due to lightn...

AI Technical Summary

Problems solved by technology

However, they still have the following deficiencies: (1) the ground layer adopts the method of oblique wrapping, and the production speed is slow; (2) the armor layer only plays the role of armor, (3) after being struck by lightning, the part of the cable The grounding layer is blown, so that the inner sheath melts in the cable core interval and the insulated cores are integrated, making it difficult to separate the insulated cores; it can only be disposed of as waste

[0004] The above deficiencies increase the maintenance cost after the cable lightning strike

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