CN217086237U - Transmission power line - Google Patents

Abstract

The utility model provides a transmission power line, including a plurality of electric units and a plurality of light unit, power cord outside-in has laid high density polyethylene oversheath layer, irradiation crosslinked polyolefin inner sheath layer, copper wire in proper order and has woven shielding layer, filling layer, and electric unit and light unit are laid between copper wire woven shielding layer and filling layer, have solved for electrical equipment electric and broadband access signal transmission problem, have dampproofing, low temperature resistant-40 ℃, the wearability, weak acid and weak base corrosivity and weatherability resistant, have avoided the secondary wiring, and life can reach 70 years.

Description

Transmission power line

Technical Field

The utility model belongs to the wire and cable field, concretely relates to novel high performance 5G broadband network access system photoelectricity composite transmission power cord.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The power line is mainly used for connecting cables for power, electric devices, instruments and telecommunication equipment, and is used for transmitting electric energy in power transmission and distribution lines, and the optical fiber is mainly used for signal transmission and image transmission and is suitable for an optical fiber access network in a system. In the existing wiring mode, most of the electric unit transmission lines and the optical units are laid separately, so that the electric unit transmission lines and the optical units are easily influenced by low-temperature and humid environments under laying conditions, the service life of cables is influenced, secondary wiring is caused, and potential safety hazards and resource waste exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provided a transmission power cord, the utility model discloses cable collection transmission of electricity copper line, optic fibre in an organic whole, solved electrical equipment power consumption and broadband access signal transmission problem, occupation space is few, construction convenience practices thrift construction cost, has avoided the secondary wiring, has increased life.

According to some embodiments, the utility model provides a transmission power line adopts following technical scheme:

a transmission power line comprises a plurality of electric units and a plurality of optical units, wherein a high-density polyethylene outer sheath layer, an irradiation cross-linked polyolefin inner sheath layer, a copper wire braided shielding layer and a filling layer are sequentially paved on the power line from outside to inside;

the electric unit and the optical unit are laid between the copper wire braided shielding layer and the filling layer.

Furthermore, a plurality of cotton ropes are further arranged between the copper wire braided shielding layer and the filling layer.

Furthermore, the electric units are distributed between the copper wire braided shielding layer and the filling layer from the center to the outside in the circumferential direction.

Furthermore, an irradiation crosslinking polyolefin outer insulating layer and an irradiation crosslinking polyethylene inner insulating layer are sequentially paved on the electric unit from outside to inside.

Furthermore, a plurality of copper conductors are laid inside the irradiation crosslinking polyethylene inner insulation layer.

Furthermore, the copper conductors are distributed and paved from the center to the outside in the circumferential direction.

Furthermore, the copper conductor is formed by stranding a 7-core annealing circular copper wire structure, and the insulation color is black.

Furthermore, the irradiation crosslinking polyolefin outer insulating layer and the irradiation crosslinking polyethylene inner insulating layer both adopt a double-layer co-extrusion mode.

Further, the light unit includes the polyolefin oversheath, and inside adopts many G.657.A2 optic fibre, the optic fibre adopts insulating colour blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, cyan green.

Furthermore, the optical fibers are stranded into a cable and extruded with a polyolefin sheath.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an electricity unit and light unit combine, electricity unit adopts 2 types of conductors at the conductor structure, light unit adopts G.657.A2 optic fibre, insulation and oversheath have adopted irradiation crosslinked polyethylene and irradiation crosslinked polyolefin to extrude the structure, this product collection transmission of electricity copper line, optic fibre in an organic whole, electrical equipment inserts the signal transmission problem with electric and broadband in the electric wire netting system simultaneously, have dampproofing, low temperature resistant-40 ℃, the wearability, weak acid and weak base corrosivity of resistant, fire-retardant and weatherability. The occupied space is small, the construction is convenient, the construction cost is saved, the secondary wiring is avoided, and the service life is as long as 70 years.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic view of the internal structure of the transmission power line of the present invention;

the specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

Example 1

The utility model provides a transmission power line specifically provides a high performance 5G broadband network access system transmission power line, and this cable collection transmission of electricity copper line, optic fibre have solved electrical equipment power consumption and broadband access signal transmission problem in an organic whole, have dampproofing, low temperature resistant-40 ℃, wearability, weak acid and weak base resistance to corrosion and weatherability. The occupied space is small, the construction is convenient, the construction cost is saved, the secondary wiring is avoided, and the service life can reach 70 years.

Specifically, as shown in fig. 1, a high-density polyethylene outer sheath layer 1, an irradiation cross-linked polyolefin inner sheath layer 2, a copper wire braided shielding layer 3 and a filling layer 4 are sequentially laid on the power line from outside to inside, and an electrical unit and an optical unit are laid between the copper wire braided shielding layer 3 and the filling layer 4;

the electric unit is 13 main line core electric units, and optical unit 6 sets up to two. The electric units are distributed between the copper wire braided shielding layer 3 and the filling layer 4 from the center to the outside in the circumferential direction, and 2 optical units are directly paved between the copper wire braided shielding layer 3 and the filling layer 4.

An irradiation crosslinking polyolefin outer insulating layer 7 and an irradiation crosslinking polyethylene inner insulating layer 8 are sequentially paved on the electric unit from outside to inside. The insulating layer in the electric unit adopts a double-layer insulating structure of an irradiation cross-linked polyethylene inner insulating layer and an irradiation cross-linked polyolefin outer protective insulating layer, the double-layer insulating structure is a key structure of the electrical and mechanical properties of the power line, and the double-layer insulating structure and the conductor unit are used for power transmission of the cable.

A plurality of copper conductors 9 are laid in the irradiation crosslinking polyethylene inner insulation layer, and the copper conductors 9 are distributed and laid from the center to the outside in the circumferential direction. The conductor is composed of an oxygen-free copper rod with good conductivity and 7 annealed copper wires in a twisted mode, the conductor conforms to a 2-class circular copper conductor structure, the integral temperature resistance level of an electric unit can reach 90 ℃, and the short-time overload temperature can reach 250 ℃.

The copper conductor is formed by stranding a 7-core 7/1.03mm annealing circular copper wire structure, the insulation color is black, numbers 1# to 12# are identified, and the ground wire of the last layer of outer ring is yellow/green.

The irradiation crosslinking polyolefin outer insulation layer 7 and the irradiation crosslinking polyethylene inner insulation layer 8 are extruded outside the electric unit conductor 9 in a double-layer co-extrusion mode, the average thickness of the electric unit insulation is 0.9mm, and the thickness ratio of the inner insulation to the outer insulation is 1: 1.

The irradiation crosslinking polyolefin inner jacket layer is formed by extruding and coating a crosslinking polyolefin mixture material with high strength and mechanical property. The layer structure has the advantages of strong tensile strength and elongation at break, excellent performances of aging resistance, low temperature resistance, flame retardance and the like, and can meet the requirement of long-term stable operation of the cable in a complex installation environment.

The polyethylene outer sheath layer is formed by extruding and wrapping high-density polyethylene materials. The layer structure has the advantages of moisture resistance, low temperature resistance, wear resistance, weak acid and weak base corrosion resistance and weather resistance, and the service life of the sheath is prolonged.

The optical unit includes the polyolefin oversheath, inside adopts many G.657.A2 optic fibre, optic fibre adopts insulating color blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, blue green, optic fibre transposition cabling, crowded package polyolefin sheath. The polyolefin outer sheath protects the optical fibers from being damaged during cabling. The irradiation cross-linked polyolefin inner sheath layer is continuously extruded and coated on the outer side of the copper wire braided shielding layer. The copper wire braided shielding layer 3 is positioned on the inner side of the irradiation cross-linked polyolefin inner sheath, and the high-density polyethylene outer sheath layer is positioned on the outermost side.

The optical unit is formed by twisting 12 G.657.A2 optical fibers SZ into a cable core, and a polyolefin sheath is arranged outside the cable core. The layer structure is a key structure of signal transmission, and the unit is used for system broadband access.

The filling layer 4 adopts polyolefin filling strips, the phi 2.0mm filling strips are positioned in the gaps between the optical units and the electric units for filling, and the phi 3.5mm polyolefin filling strips are positioned in the middle of the electric units.

A plurality of cotton ropes 5 are also arranged between the copper wire braided shielding layer 3 and the filling layer 4. The shielding layer 3 is braided by adopting a 36-spindle braiding machine at the outer side of the cable-forming wire core, the braided structure adopts a 0.2mm bare round copper wire, the braiding density is more than or equal to 80 percent, and the overall flexibility of the cable and the effectiveness of signal transmission are ensured.

The shielding layer is braided by adopting a bare copper wire braided material, and is braided in a left-right cross manner, and the braiding density reaches over 80%. The main function of the braid layer is electromagnetic shielding, and the cable is prevented from being interfered by external electromagnetic environment.

The utility model discloses a transmission power cord, including 13 electric units and 2 optical units, irradiation crosslinked polyethylene inner insulating layer, irradiation crosslinked polyolefin outer insulating layer, the shielding layer is woven to the copper wire, irradiation crosslinked polyolefin inner sheath layer, high density polyethylene sheath outer sheath layer, 0+5 core electric units are located the center through the transposition, irradiation crosslinked polyethylene and irradiation crosslinked polyolefin insulation protective layer, photoelectric unit, the shielding layer is woven to the copper wire, irradiation crosslinked polyolefin inner sheath layer, high density polyethylene outer sheath layer from inside to outside with this range, this cable collection transmission copper line, optic fibre in an organic whole, solved electrical equipment power consumption and broadband access signal transmission problem, have dampproofing, low temperature resistant-40 ℃, wearability, weak acid and weak base resistance corrosivity and weatherability. The occupied space is small, the construction is convenient, the construction cost is saved, the secondary wiring is avoided, and the service life can reach 70 years.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (10)

1. A transmission power line is characterized by comprising a plurality of electric units and a plurality of optical units, wherein a high-density polyethylene outer sheath layer, an irradiation cross-linked polyolefin inner sheath layer, a copper wire braided shielding layer and a filling layer are sequentially paved on the power line from outside to inside;

the electric unit and the optical unit are laid between the copper wire braided shielding layer and the filling layer.

2. The transmission power line as claimed in claim 1, wherein a plurality of cotton ropes are further disposed between the shielding layer and the filling layer.

3. The transmission power line as claimed in claim 1, wherein the electrical units are distributed circumferentially from the center to the outside between the braided shielding layer of copper wires and the filling layer.

4. The transmission power line as claimed in claim 1, wherein the electrical unit is sequentially provided with an outer insulation layer of radiation cross-linked polyolefin and an inner insulation layer of radiation cross-linked polyethylene from outside to inside.

5. The transmission power line as claimed in claim 4, wherein the radiation crosslinked polyethylene inner insulating layer is internally laid with a plurality of copper conductors.

6. The transmission power line as claimed in claim 5, wherein the copper conductors are circumferentially distributed from the center to the outside.

7. The transmission power line of claim 5, wherein the copper conductor is formed by twisting 7-core annealed round copper wire structure, and the insulation color is black.

8. The transmission power line as claimed in claim 4, wherein the radiation cross-linked polyolefin outer insulation layer and the radiation cross-linked polyethylene inner insulation layer are extruded by double-layer co-extrusion.

9. The transmission power line of claim 1, wherein the light unit comprises a polyolefin outer sheath, and a plurality of g.657.a2 optical fibers are arranged inside the polyolefin outer sheath, and the optical fibers are made of insulating blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, and turquoise.

10. The transmission power cord of claim 9, wherein the optical fibers are stranded into a cable and are extruded with a polyolefin jacket.

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