Bird pecking prevention all-dielectric self-supporting optical cable

Abstract

The utility model relates to an anti-bird pecking all-dielectric self-supporting optical cable. The anti-bird pecking all-dielectric self-supporting optical cable comprises an optical cable core, an inner sheath, a reinforcing layer, a sheath layer and an anti-bird pecking comprehensive layer, an inner sheath is extruded outside the optical cable core, a reinforcing layer is twisted outside the inner sheath, a sheath layer is extruded outside the reinforcing layer, and an anti-bird pecking comprehensive layer is extruded outside the sheath layer; the optical cable core comprises a reinforced core wire, a loose tube surrounding the reinforced core wire, optical fibers and fiber paste located in the loose tube, and cable paste located in a gap between the reinforced core wire and the loose tube; the bird pecking prevention comprehensive layer is of an overall tubular closed structure and comprises a base body and reinforcing fibers located in the base body. The bird pecking prevention comprehensive layer structure provided by the utility model is arranged at the outermost layer of the optical cable, can integrally protect all structural units of the optical cable, and has good bird pecking prevention, bite prevention, tensile resistance and side pressure resistance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of optical fiber cable, concretely is a kind of bird pecking all dielectric self-supporting optical cable. BACKGROUND

[0002] In the communication line of power system all dielectric self-supporting optical cable (ADSS), there are more optical fiber breakage accidents, and many of them are caused by bird pecking on optical cable. In order to prevent the optical cable from being damaged by pecking, the structure of the optical cable is improved, and a bird pecking prevention layer is added inside the outer sheath. When the optical cable is pecked by birds, only the outer protective layer of the optical cable will be damaged in the early stage, and the cable core will not be damaged by birds, so as not to cause communication line failure immediately. However, over time, the outer protective layer of the optical cable is damaged, and the tensile strength of the optical cable will decrease, which may cause the whole optical cable to break. To solve this problem, the overall bird pecking performance of the optical cable needs to be improved.

[0003] Therefore, a new type of optical cable structure is needed to solve the above problems, and all structural units of the optical cable need to be protected from bird pecking. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the utility model provides a kind of bird pecking all dielectric self-supporting optical cable, it has the whole bird pecking layer comprehensive layer structure of full enclosure, with good bird pecking, tensile, lateral pressure resistance.

[0005] According to the technical scheme provided by the utility model, the bird pecking all dielectric self-supporting optical cable includes optical cable core, inner sheath, reinforcing layer, sheath layer and bird pecking comprehensive layer;The inner sheath is extruded on the outside of the optical cable core, the reinforcing layer is twisted on the outside of the inner sheath, the sheath layer is extruded on the outside of the reinforcing layer, and the bird pecking comprehensive layer is extruded on the outside of the sheath layer.

[0006] The optical cable core includes reinforcing core wire, loose sleeve around the reinforcing core wire, optical fiber and fiber paste in the loose sleeve, and cable paste in the gap between the reinforcing core wire and the loose sleeve.

[0007] The bird pecking comprehensive layer is a whole tubular structure, and the bird pecking layer includes a base body and reinforcing fibers in the base body.

[0008] Preferably, the material of the reinforcing core wire is glass fiber reinforced plastic.

[0009] Preferably, the material of the inner sheath is medium density or high density polyethylene.

[0010] Preferably, the material of the reinforcing layer is aramid yarn, which is distributed concentrically on the outside of the inner sheath.

[0011] Preferably, the material of the sheath layer is anti-electric mark polyolefin.

[0012] Preferably, the material of the matrix is an epoxy resin containing an anti-tracking agent, and the material of the reinforcing fiber is a glass fiber.

[0013] In summary, the utility model has at least one of the following beneficial technical effects:

[0014] 1. In the utility model, the bird pecking prevention comprehensive layer is a composite structure composed of high-strength glass fiber as reinforcing fiber and epoxy resin containing an anti-tracking agent as matrix material, which is coated around the sheath in an extrusion manner to form an overall tubular structure, which fully protects the cable core and can withstand large compression and tension, has high rigidity and hardness, is not moved by bird pecking, and can also prevent animal bites.

[0015] 2. In the utility model, the bird pecking prevention comprehensive layer is placed on the outermost layer of the optical cable, which can effectively protect all structural units of the optical cable, and the bird pecking prevention is more reliable.

[0016] 3. In the utility model, the bird pecking prevention comprehensive layer contains an anti-tracking agent, has good anti-tracking and anti-aging performance, and meets the requirements of 220kV and below voltage level lines in power systems. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the bird pecking prevention full-dielectric self-supporting optical cable.

[0018] Mark 1, optical cable core; 11, reinforcing core; 12, loose tube; 13, optical fiber; 14, fiber paste; 15, cable paste; 2, inner sheath; 3, reinforcing layer; 4, sheath layer; 5, bird pecking prevention comprehensive layer; 51, matrix; 52, reinforcing fiber. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0020] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0021] In addition, the meaning of "several" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0022] The utility model discloses a kind of bird pecking-proof full dielectric self-supporting optical cable. Refer to Figure 1 A kind of bird pecking-proof full dielectric self-supporting optical cable includes optical cable core 1, inner sheath 2, reinforcing layer 3, sheath layer 4, bird pecking-proof comprehensive layer 5;In the outside of optical cable core 1 extrusion inner sheath 2, in the outside of inner sheath 2 around reinforcing layer 3, in the outside of reinforcing layer 3 extrusion sheath layer 4, in the outside of sheath layer 4 extrusion bird pecking-proof comprehensive layer 5;

[0023] Optical cable core 1 includes reinforcing core wire 11, loose tube 12 around the outside of reinforcing core wire 11, optical fiber 13 and fiber paste 14 located in loose tube 12 and cable paste 15 located in the gap between reinforcing core wire 11 and loose tube 12, the material of optical cable core 1 is glass fiber reinforced plastic (i.e. GFRP material), and there are 6 loose tubes 12, and each loose tube 12 contains 12 optical fibers 13 of G652D model.

[0024] Reinforcing layer 3 is a plurality of aramid yarns concentrically twisted and distributed outside the inner sheath 2, and the number of reinforcing layer 3 is 12.

[0025] The material of sheath layer 4 is anti-electric mark polyolefin.

[0026] Bird pecking-proof comprehensive layer 5 is a whole tubular structure, bird pecking-proof comprehensive layer 5 includes base body 51 and reinforcing fiber 52 located in base body 51, the material of base body 51 is epoxy resin containing anti-electric mark agent, the material of reinforcing fiber 52 is glass fiber, the bird pecking-proof comprehensive layer is a composite structure composed of high-strength glass fiber as reinforcing fiber and epoxy resin containing anti-electric mark agent as base material, which is coated around the sheath in an extrusion manner to form a whole tubular structure, which fully protects the cable core and can withstand large compression and tension, has high rigidity and hardness, is not affected by bird pecking, and can also prevent animal bites.

[0027] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A bird-resistant, all-dielectric, self-supporting optical cable, characterized by: It includes optical cable core (1), inner sheath (2), reinforcing layer (3), sheath layer (4), bird pecking prevention comprehensive layer (5); the inner sheath (2) is extruded on the outside of the optical cable core (1), the reinforcing layer (3) is wrapped on the outside of the inner sheath (2), the sheath layer (4) is extruded on the outside of the reinforcing layer (3), and the bird pecking prevention comprehensive layer (5) is extruded on the outside of the sheath layer (4); The optical cable core (1) includes reinforcing core wire (11), loose sleeve (12) wrapped outside the reinforcing core wire (11), optical fiber (13) and fiber paste (14) located in the loose sleeve (12), and cable paste (15) located in the gap between the reinforcing core wire (11) and the loose sleeve (12). The bird pecking prevention comprehensive layer (5) is a whole tubular structure, and the bird pecking prevention comprehensive layer (5) includes base body (51) and reinforcing fiber (52) located in the base body (51).

2. The all-dielectric, bird-resistant, self-supporting optical cable of claim 1, wherein: The material of the reinforcing core wire (11) is glass fiber reinforced plastic.

3. The bird-pecking-proof all-dielectric self-supporting optical cable as described in claim 1, characterized in that: The material of the inner sheath (2) is high-density or medium-density polyethylene.

4. The all-dielectric, bird-resistant, self-supporting optical cable of claim 1, wherein: The reinforcing layer (3) is a plurality of aramid yarns concentrically twisted and distributed outside the inner sheath (2).

5. The all-dielectric, bird-resistant, self-supporting optical cable of claim 1, wherein: The material of the outer sheath layer (4) is anti-electric mark polyolefin.

6. The all-dielectric, bird-resistant, self-supporting optical cable of claim 1, wherein: The material of the base body (51) is epoxy resin containing anti-electric mark agent, and the material of the reinforcing fiber (52) is glass fiber.

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