A kind of flame-retardant optoelectronic hybrid cable of coaxial electric unit and its manufacturing method

Abstract

The invention discloses a flame-retardant photoelectric hybrid cable with a coaxial electrical unit, which comprises an optical cable unit, a cable unit, and an outer protective sheath; the optical cable unit includes an optical cable core and a strengthening structure; There is a triangular groove with a support piece at the contact between the blocks; the support piece abuts against the elastic protective sleeve; the optical cable unit and the cable unit form a hybrid cable core by layer stranding; the invention also provides a coaxial electric unit A method for manufacturing a flame-retardant photoelectric hybrid cable, comprising the following steps: S1 preparing an optical cable unit; S2 preparing a coaxial cable unit; S3 preparing a data cable unit; S4 preparing a cable unit; S5 preparing a hybrid optical cable product; the beneficial effects of the present invention are: Use optical cable unit and cable unit to realize multi-signal transmission and high mechanical strength; use cable shielding layer and cable core to realize high mechanical strength; use non-hygroscopic protective layer to realize multi-signal transmission; use each protective cover to realize high mechanical strength.

Description

technical field [0001] The invention relates to the field of cable preparation, in particular to a flame-retardant photoelectric hybrid cable with a coaxial electric unit and a manufacturing method thereof. Background technique [0002] With the continuous development of modern networks, basic living consumption and entertainment can basically be paid for and obtained through the network, so network construction is also in full swing; as the main transmission route of network transmission, optical hybrid cables are deployed along with the network during the construction of these networks. As the density increases, the potential safety hazards are also more serious. At the same time, the increase in network density increases the risk of cable skin wear and internal structure breakage. [0003] The main components of the protective sheath or shielding layer of the cable are high molecular polymers. These high molecular polymers are generally flammable. Due to the great harm ca...

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Problems solved by technology

[0002] With the continuous development of modern networks, basic living consumption and entertainment can basically be paid for and obtained through the network, so network construction is also in full swing; as the main transmission route of network transmission, optical hybrid cables are deployed along with the network during the construction of these networks. As the density increases, its potential safety hazards are also more serious. At the same time, the increase in network density increases the risk of cable skin wear and internal structure breakage.

[0003] The main components of the protective sheath or shielding layer of the cable are high molecular polymers. These high molecular polymers are generally flammable. Due to the great harm caused by fire, people pay attention to the flame retardant problem of plastics. Existing plastic flame retardant The commonly used method is to add flame retardants to high molecular polymers, and most flame retardants contain halogens, which will release a large amount of smoke and hydrogen halide gas when burned, which are poisonous to the human body and caused by strong The suffocation effect on the equipment will also cause corrosion, thus increasing the possibility of secondary disasters in the fire

With the development of modern science and technology and the improvement of people's living standards, higher requirements are put forward for the safety, environmental protection and service life of wire and cable products; in the late 1990s, the application technology of domestic polymer materials and synthetic resin and The rapid development of its blending modification technology has actively promoted the cable industry to enter a new application era of materials. Low-smoke halogen-free flame-retardant materials are a new type that have emerged in recent years, and their performance meets the requirements of the IEC92-359 standard According to the regulations on thermoplastic materials, the low-smoke, halogen-free and flame-retardant injection molding materials produced have been widely used in public places where people are relatively concentrated, such as electromechanical, subways and high-rise buildings; however, most of the low-smoke, halogen-free, and flame-retardant injection molding It is very important to obtain an optical-electrical hybrid cable with high mechanical strength.

[0004] The existing photoelectric hybrid cable is suitable for broadband access network system as a transmission line. It is a new type of access method, which integrates optical fiber and power transmission copper wire, and can solve the problems of broadband access, equipment power consumption, and signal transmission. , but because the signal source is required to be single, it is impossible to transmit multiple signal sources, which cannot meet the increasing signal transmission requirements

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