CN207409296U - A kind of high intensity power communication cable - Google Patents

Abstract

The utility model relates to a high-strength electric communication cable, which comprises one or more cable cores, fillers, a flame-retardant and heat-insulating layer and an outer protective layer; the flame-retardant and heat-insulating layer is coated on one or more cable cores The outer periphery, the filler is located between the flame retardant heat insulation layer and one or more cable cores, the outer protective layer is covered on the outer periphery of the flame retardant heat insulation layer, and the cable core includes two conductors, tensile steel wire ropes and The cable core coating layer; the two conductors are twisted with each other, the tensile steel wire rope is located on both sides of the conductor and parallel to the communication cable, and the cable core coating layer is coated on the outer circumference of the two conductors and the tensile steel wire rope; The conductor includes a soft copper wire, a shielding layer and an insulating layer; the shielding layer is coated on the outer periphery of the soft copper wire, and the insulating layer is wrapped on the outer periphery of the shielding layer; the utility model has excellent performance and complete functions. It has good corrosion resistance, high temperature resistance, flame retardant, tensile and torsion resistance, and has good anti-signal interference ability.

Description

A high-strength power communication cable

technical field

The utility model relates to the field of communication cables, in particular to a high-strength electric communication cable.

Background technique

Communication cables are cables for transmitting telephones, telegraphs, fax documents, TV and radio programs, data and other electrical signals. Compared with overhead open wires, communication cables have large communication capacity, high transmission stability, good confidentiality, and are less affected by natural conditions. and external interference effects.

Communication cables are usually composed of multiple insulated wires or conductors twisted into a cable core and an outer sheath that protects the cable core from moisture and mechanical damage. This simple structure consists of mutually insulated wires and an outer sheath Communication cables have many disadvantages, such as being unable to withstand severe external environment erosion; short service life and easy to break under frequent laying, pulling, bending and twisting; poor anti-signal interference ability, unable to meet the needs of high-end automation equipment demand and so on.

Contents of the invention

Aiming at the above problems, the utility model provides a high-strength power communication cable, which is corrosion-resistant, has good tensile and torsion resistance, high mechanical strength, and has good anti-signal interference ability.

The utility model provides a high-strength power communication cable, which includes one or more cable cores, fillers, flame-retardant and heat-insulating layers, and outer protective layers; the flame-retardant and heat-insulating layers are coated on one or more cable cores The outer periphery, the filler is located between the flame retardant heat insulation layer and one or more cable cores, the outer protective layer is covered on the outer periphery of the flame retardant heat insulation layer, and the cable core includes two conductors, tensile steel wire ropes and The cable core coating layer; the two conductors are twisted with each other, the tensile steel wire rope is located on both sides of the conductor and parallel to the communication cable, and the cable core coating layer is coated on the outer circumference of the two conductors and the tensile steel wire rope; The conductor includes a soft copper wire, a shielding layer and an insulating layer; the shielding layer is wrapped on the outer periphery of the soft copper wire, and the insulating layer is wrapped on the outer periphery of the shielding layer.

As a further optimization of the utility model, the filler is polytetrafluoroethylene.

As a further optimization of the utility model, the flame-retardant and heat-insulating layer is a fire-resistant mica tape.

As a further optimization of the utility model, the outer protective layer is high-density polyethylene.

As a further optimization of the utility model, the diameter of the soft copper wire is 1.2 mm.

As a further optimization of the utility model, the shielding layer is a braided structure, and the braided structure covers the soft wire copper wire with a coverage of not less than 85%.

As a further optimization of the present invention, the insulating layer is silane cross-linked polyethylene.

As a further optimization of the utility model, the cable core coating layer is made of polyester material, and the cable core coating layer is double-layered.

The beneficial effects of the utility model are:

The utility model has excellent performance, complete functions, good corrosion resistance, high temperature resistance, flame retardancy, tensile resistance, anti-torsion performance, and good anti-signal interference ability.

Description of drawings

Fig. 1 is a schematic structural view of a high-strength power communication cable of the present invention;

Among them, the outer protective layer 1, the flame retardant heat insulation layer 2, the filler 3, the cable core 4, the tensile steel wire rope 41, the cable core coating layer 42, the conductor 43, the insulating layer 431, the shielding layer 432, and the soft copper wire 433 .

Detailed ways

Below in conjunction with specific embodiment the utility model is described in detail.

As shown in Figure 1, a high-strength power communication cable provided by this embodiment includes one or more cable cores 4, fillers 3, flame-retardant and heat-insulating layers 2 and outer protective layers 1; The thermal layer 2 is wrapped on the outer periphery of one or more cable cores 4, and the filler 3 is located between the flame retardant heat insulation layer 2 and one or more cable cores 4; the outer protective layer 1 is wrapped on the flame retardant the outer periphery of the heat insulation layer 2; the cable core 4 includes two conductors 43, a tensile steel wire rope 41 and a cable core cladding layer 42; the two conductors 43 are twisted to each other, and the tensile steel wire rope 41 is located Side and parallel to the communication cable, the core cladding layer 42 is wrapped around the outer circumference of the two conductors 43 and the tensile steel wire rope 41; the conductor 43 includes a soft copper wire 433, a shielding layer 432 and an insulating layer 431; The shielding layer 432 is wrapped around the outer periphery of the soft copper wire 433 , and the insulating layer 431 is wrapped around the outer periphery of the shielding layer 432 .

Preferably, the filler 3 is polytetrafluoroethylene; since there is a gap between the cable core 4 and the flame-retardant heat insulation layer 2, filling the filler 3 in the gap can make the shape of the communication cable more regular and can also The internal structure is more compact and firm, and PTFE has the characteristics of not adhering to any substance and having a low friction coefficient, which makes it unnecessary to overcome the stress of too much PTFE when the communication cable is bent and twisted, making the cable The overall performance of is increased with no negative side effects.

Preferably, the flame-retardant and heat-insulating layer 2 is a fire-resistant mica tape, which has excellent high temperature resistance and combustion resistance, and usually also has good flexibility, and there will be no harmful smoke even if it encounters an open flame. Volatile; if necessary, phlogopite refractory mica tape can also be used, which can also resist electric shock.

Preferably, the outer protective layer 1 is high-density polyethylene, which has good corrosion resistance and insulation properties.

Preferably, the wire diameter of the soft copper wire 433 is 1.2mm.

Preferably, the shielding layer 432 is a braided structure, and the coverage of the braided structure covering the soft copper wire 433 is not less than 85%, so as to ensure that the shielding effect meets the signal interference prevention requirements of high-end automation equipment. It should be noted that the term "coating" in the present invention refers to a coverage rate of 100% unless otherwise specified.

Preferably, the insulating layer 431 is silane cross-linked polyethylene, which not only has good insulation performance, but also has good heat resistance and mechanical strength. The use of silane cross-linked polyethylene in conjunction with the tensile steel wire rope 41, Make this cable have high-strength performance.

Preferably, the cable core coating layer 42 is a polyester material, and the cable core coating layer 42 is double-layered. Since the tensile strength of the steel wire rope is relatively high, the double-layer polyester material coating effect is better and more firm. In this embodiment, setting the tensile steel wire rope in the cable core is equivalent to increasing the strength of each single conductor, so that the strength of the entire cable can be maximized.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (8)

1. a kind of high intensity power communication cable, which is characterized in that including one or more cable hearts, filler, anti-flaming thermal-insulation layer And external protection coating；The anti-flaming thermal-insulation layer is coated on one or more cable heart peripheries, the filler be located at anti-flaming thermal-insulation layer and Between one or more cable hearts, the external protection coating is coated on anti-flaming thermal-insulation layer periphery, and the cable pericardium includes two conductors, tensions Steel wire rope and cable pericardium coating；Described two conductors are mutually twisted, the tensile steel wire rope be located at conductor both sides and with the electricity that communicates Cable is parallel, and the cable pericardium coating is coated on two conductors and tensile steel wire rope periphery；The conductor includes soft silk copper wire, shielding Layer and insulating layer；The shielded layer is coated on the periphery of soft silk copper wire, and the insulating layer is coated on the periphery of shielded layer.

2. a kind of high intensity power communication cable according to claim 1, which is characterized in that the filler is polytetrafluoroethyl-ne Alkene.

3. a kind of high intensity power communication cable according to claim 1, which is characterized in that the anti-flaming thermal-insulation layer is fire resisting Mica tape.

4. a kind of high intensity power communication cable according to claim 1, which is characterized in that the external protection coating is high density Polyethylene.

5. a kind of high intensity power communication cable according to claim 1, which is characterized in that the line footpath of the soft silk copper wire is 1.2mm。

6. a kind of high intensity power communication cable according to claim 1, which is characterized in that the shielded layer is tied for braiding Structure, braiding structure cover soft silk copper wire coverage and are not less than 85%.

7. a kind of high intensity power communication cable according to claim 1, which is characterized in that the insulating layer is crosslinked with silicane Polyethylene.

8. a kind of high intensity power communication cable according to claim 1, which is characterized in that the cable pericardium coating is polyester Material, the cable pericardium coating are bilayer.