CN204596510U - In, low pressure protection against rodents, anti-ant optoelectronic composite cable - Google Patents

Abstract

The utility model discloses a medium and low voltage rodent-proof and ant-proof photoelectric composite cable, which is characterized in that it comprises: a composite cable core located in the center, the composite cable core is wrapped around a cladding (5), and the The cladding (5) is externally extruded with an inner sheath (6), the inner sheath (6) is externally wrapped with an aluminum alloy wire armor layer (7), and the aluminum alloy wire armor layer (7) is externally extruded Outer sheath (8); the cable core includes a medium voltage insulated core (1), a low voltage insulated core (2), an optical unit (3) and a filler (4), and the medium voltage insulated core (1 ), the low-voltage insulated wire core (2), the optical unit (3) and the filler (4) are stranded to form the composite cable core. The utility model provides a medium and low voltage rodent-proof and ant-proof photoelectric composite cable, which can transmit electric power and light signals of different voltage levels at the same time, and also has the functions of bearing longitudinal tension, preventing rodents and termites.

Description

Medium and low voltage rodent-proof and ant-proof photoelectric composite cables

technical field

The utility model relates to a medium and low voltage rodent-proof and ant-proof photoelectric composite cable, in particular to a medium-low voltage optical communication composite rodent-proof and ant-proof power cable, which belongs to the technical field of cables.

Background technique

With the development of my country's electric power and communication industry, in the laying of cables, it is generally a single power cable of different voltage levels, and the laying of optical cables is more common, so the laying of lines is messy, manufacturing costs, installation and construction costs, and labor costs And the environment space is quite high; in addition, steel tape armor is often used for armoring at present. In this armoring form, the cable is not soft, which is not convenient for construction, and the cable bears small longitudinal tension, which is not conducive to use in environments with high drop; in many places , After mice and termites destroy the outer sheath, they directly destroy the internal structure, resulting in the interruption of power transmission and causing huge losses. Therefore, in order to improve the utilization rate of the line, reduce the cost, improve the progress of the project, reduce the length of the line, and ensure the service life of the cable, it is necessary

In order to make full use of resources, it is necessary to improve the structure and materials; further, it is necessary to solve the problem that the cable structure used in places with height differences can withstand longitudinal tension;

Utility model content

The technical problem to be solved by the utility model is to provide a medium and low-voltage photoelectric cable with different voltage levels for simultaneous transmission of electric power and optical signals, effectively ensuring the original characteristics of the cable, high utilization rate of the line, and reducing the cost of cable manufacturing, transportation and laying. Composite cable; further, the utility model also has the functions that the cable can withstand longitudinal tension, the cable has good flexibility, is convenient for construction, and is suitable for use in places with height differences. Further, the utility model also has the functions of preventing rodents and termites effect.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

The middle and low voltage rodent-proof and ant-proof photoelectric composite cable is characterized in that it includes: a composite cable core located in the center, the composite cable core is wrapped with a wrapping layer, and the wrapping layer is extruded with an inner sheath, so An aluminum alloy wire armor layer is wrapped around the inner sheath, and an outer sheath is extruded outside the aluminum alloy wire armor layer;

The composite cable core includes a medium-voltage insulated core, a low-voltage insulated core, an optical unit and a filler, and the filler is filled between the medium-voltage insulated core, the low-voltage insulated core, the optical unit and the wrapping layer After the medium-voltage insulated wire core, the low-voltage insulated wire core, the optical unit and the filler are stranded, the composite cable core is formed.

The medium voltage insulated core includes a first copper conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer and a metal shielding layer, the first copper conductor is located at the center of the medium voltage insulated core, and the first copper A three-layer co-extrusion method is used to extrude the conductor shielding layer, the insulating layer and the insulating shielding layer in sequence on the outside of the conductor, and the copper tape wrapped around the insulating shielding layer is a metal shielding layer; the number of the medium-voltage insulated cores is at least 3 roots.

The materials of the conductor shielding layer and the insulating shielding layer are both non-metal semiconducting materials; the material of the insulating layer is XLPE insulating material.

The low-voltage insulated wire core includes a second copper conductor and an XLPE insulation layer, and the XLPE insulation layer is extruded outside the second copper conductor; the number of the low-voltage insulated wire cores is at least three.

The optical unit includes a stainless steel tube, optical fiber and fiber paste, the optical fiber is placed in the stainless steel tube, and the gap between the optical fiber and the stainless steel tube is filled with fiber paste; the number of the optical unit (3) is 1 or more.

The material of the filler is PP rope or glass silk rope, which is distributed between the medium voltage insulated wire core, the low voltage insulated wire core and the optical unit and in the gap between the wrapping layer.

The material of the wrapping layer is polypropylene tape or non-woven fabric tape or glass ribbon.

The material of the inner sheath is rodent-proof and termite-proof polyvinyl chloride or rodent-proof and termite-proof polyethylene sheathing material.

The material of the aluminum alloy wire armor layer is aluminum alloy wire, the number of layers is double, and the armor form is double reverse armor.

The comprehensive outer sheath adopts rodent-proof, termite-proof polyvinyl chloride or rodent-proof double-layer sheath structure with nylon, extruded rodent-proof, termite-proof polyvinyl chloride sheath material or termite-proof polyvinyl chloride The vinyl sheath material is then extruded with nylon.

The medium and low voltage rodent-proof and ant-proof photoelectric composite cables provided by the utility model, the settings of the medium-voltage insulated wire core, the low-voltage insulated wire core and the optical unit make the utility model have the function of simultaneously transmitting electric power and optical signals of different voltage levels. The medium-voltage insulated wire core has a metal shielding layer, and the optical unit has a stainless steel tube, so that there is no interference between the three companies, so that the medium-voltage line and the low-voltage line can be transmitted together, and multiple cables are concentrated in one cable. At the same time, the power and optical signals of different voltage levels can be transmitted in one cable, which can greatly reduce the cost; the aluminum alloy wire armor layer is made of double-layer aluminum alloy material, which is made by adding iron, rare earth and other elements to aluminum and passing through It is made of alloy material formed after annealing treatment. It has the characteristics of creep resistance, high flexibility, strong ductility, low rebound, stable connection, double-layer reverse without torsion, and adopts the special double-layer reverse armor. In the form of armor, the armor layer is strong and tough, lighter than steel tape armor, easier to peel off, easy to install, can withstand longitudinal tension, no torsion, can be used in lines with large height drops, free of bridge installation, reduce costs, The cable has the advantages of high compression resistance, high impact resistance, high bending performance, light weight, and rodent resistance; the inner sheath adopts rodent-proof and termite-proof PVC or rodent-proof and termite-proof polyethylene sheath anti-rat and termite-proof; the comprehensive outer sheath adopts anti-rodent and anti-termite polyvinyl chloride or anti-rodent and anti-termite polyethylene sheath material, and a double-layer nylon sheath structure is added to make the cable Furthermore, it has the functions of anti-rat, anti-ant, and oil-resistant, and can be used stably and for a long time in a special environment; the utility model provides a medium and low-voltage anti-rat and anti-ant, which can simultaneously transmit power and optical signals of different voltage levels. , Withstand longitudinal tension, anti-rat, anti-termite and oil-resistant functions, especially suitable for use in mines, high-rise buildings, highways, subways, power stations, power plants and other places, can be buried, overhead, vertical or pipeline laying.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the medium and low voltage rodent-proof and ant-proof photoelectric composite cable includes: medium voltage insulated core 1, low voltage insulated core 2, optical unit 3, filler 4, wrapping layer 5, inner sheath, aluminum Alloy wire armor layer 7 and comprehensive outer sheath 8; wherein, medium voltage insulated wire core 1 is composed of first copper conductor, conductor shielding layer, insulation layer, insulating shielding layer and metal shielding layer, and medium voltage insulated wire core 1 is composed of The outside of the first copper conductor adopts a three-layer co-extrusion method to successively extrude the conductor shielding layer, insulating layer and insulating shielding layer. The material of the conductor shielding layer and the insulating shielding layer is non-metallic semi-conductive material, and the material of the insulating layer is XLPE insulating material. The outer wrapping copper tape of the insulation shield is metal shielding, the number of medium-voltage insulated wire cores 1 is 3; the number of low-voltage insulated wire cores 2 is composed of the second copper conductor with an extruded XLPE insulation layer, and the number of low-voltage insulated wire cores 2 is 3 root; the optical unit 3 is composed of stainless steel tube, optical fiber and fiber paste, the optical fiber is placed in the stainless steel tube, the gap between the optical fiber and the stainless steel tube is filled with fiber paste, the number of optical unit 3 is 1; the filler 4 is filled in the The gap between the voltage insulated core 1, the low voltage insulated core 2 and the optical unit 3, the filler 4 is made of PP rope; the medium voltage insulated core 1, the low voltage insulated core 2, the optical unit 3 and the filler 4 are stranded After being combined, the wrapping layer 5 is wrapped, and the material of the wrapping layer 5 is polypropylene tape; the wrapping layer 5 is wrapped with an inner sheath 6, and the material of the inner sheath 6 is anti-rat and termite-proof polyvinyl chloride; The exterior of the sheath 6 is an aluminum alloy wire armor layer 7, and the material of the aluminum alloy wire armor layer 7 is double-layer aluminum alloy wire, which adopts a double-layer reverse armor form; the outer extrusion of the aluminum alloy wire armor layer 7 Comprehensive outer sheath 8, the comprehensive outer sheath 8 is composed of rodent-proof and termite-proof polyvinyl chloride sheath material and nylon double-layer sheath material structure, after extruding rodent-proof and termite-proof polyvinyl chloride sheath material Extruded nylon.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that this design is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of this design. On the premise of not departing from the spirit and scope of this design, this design will also have Various changes and improvements all fall within the scope of the claimed design. The scope of protection required by the design is defined by the appended claims and their equivalents.

Claims (10)

1. in, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that, comprise: the compound cable core being positioned at center, the outside wrapped lapping layer (5) of described compound cable core, described lapping layer (5) outside extrudes sheath (6), the outside wrapped aluminum-alloy wire armour (7) of described sheath (6), described aluminum-alloy wire armour (7) outside extrudes comprehensive outer jacket (8);

Described compound cable core comprises middle pressure insulated wire cores (1), low-voltage insulation core (2), light unit (3) and filler (4), described filler (4) is filled in described middle pressure insulated wire cores (1), space between low-voltage insulation core (2) and light unit (3), is described compound cable core after described middle pressure insulated wire cores (1), low-voltage insulation core (2), light unit (3) and filler (4) are stranded.

2. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: described middle pressure insulated wire cores (1) comprises the first copper conductor, conductor shield, insulating barrier, insulation screen and metal screen layer, described first copper conductor is arranged in the center of described pressure insulated wire cores (1), described first copper conductor outside adopts three-layer co-extruded mode to extrude described conductor shield, insulating barrier and insulation screen successively, and the outside wrapped copper strips of described insulation screen is metal screen layer; The quantity of described middle pressure insulated wire cores (1) is at least 3.

3. according to claim 2, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: the material of described conductor shield and insulation screen is nonmetal semiconductive material; The material of described insulating barrier is XLPE insulating material.

4. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: described low-voltage insulation core (2) comprises the second copper conductor and XLPE insulating barrier, described second copper conductor outside extrudes described XLPE insulating barrier; The quantity of described low-voltage insulation core (2) is at least 3.

5. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: described smooth unit (3) comprises stainless steel tube, optical fiber and fine cream, and optical fiber is placed in stainless steel tube, is filled with fine cream in the gap between optical fiber and stainless steel tube; The quantity of described smooth unit (3) be 1 and more than.

6. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: the material of described filler (4) is PP rope or glass-silk rope, be distributed in middle pressure insulated wire cores (1), between low-voltage insulation core (2) and light unit (3) and and lapping layer (5) between gap in.

7. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: the material of described lapping layer (5) is polypropylene tape or nonwoven fabric belts or glass tape.

8. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: the material of described sheath (6) is protection against rodents, termite-proof type polyvinyl chloride or protection against rodents, termite-proof type polyethylene sheath material.

9. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: the material of described aluminum-alloy wire armour (7) is aluminum-alloy wire, the number of plies is double-deck, and shielded version be double-deck reverse armouring.

10. according to claim 1, low pressure protection against rodents, anti-ant optoelectronic composite cable, it is characterized in that: described comprehensive outer jacket (8) adopts protection against rodents, termite-proof type polyvinyl chloride or protection against rodents, increases the duplex sheath structure of nylon outward again, extrudes nylon again after extruding protection against rodents, termite-proof type pvc sheathing compound or termite-proof type polyethylene sheath material.