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Photoelectric composite cable with high stable transmission performance

A photoelectric composite cable, a technology for transmission performance, applied to power cables including optical transmission components, power cables with shielding layers/conductive layers, power cables, etc., can solve the problem of poor shielding of external signals and easy internal structure Destroyed, low tensile strength and other problems, to achieve the effect of improving crack resistance, reducing deformation and wear, and improving tensile performance

Pending Publication Date: 2021-08-17
国网河南省电力公司西峡县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the patented photoelectric composite cable has poor shielding effect on external signals, low tensile strength, and the internal structure is easily damaged

Method used

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  • Photoelectric composite cable with high stable transmission performance
  • Photoelectric composite cable with high stable transmission performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , a photoelectric composite cable with high stable transmission performance, which includes an outer sheath 1, a tensile layer 2, an armor layer 3, a first shielding layer 4, an insulating layer 5 and a cable core from outside to inside, and the tensile layer is composed of aromatic The fiber is wound on the outer wall of the armor layer, which has high strength, high modulus, high temperature resistance, acid and alkali resistance, and improves the tensile performance of the photoelectric composite cable; the first shielding layer 4 is a graphite fiber layer, which shields external electromagnetic interference signals ; The insulating layer 5 is a medium-density polyethylene film, which not only has good insulation performance, but also has excellent waterproof performance.

[0027] The cable core includes a reinforcing core 10 and an electrical unit 8, an optical fiber unit 9, and a filling rope 7 arranged on the periphery of the reinforcing core 10. The ...

Embodiment 2

[0031] This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. Some differences are:

[0032] The outer sheath is made of anti-cracking material, and the anti-cracking material is made of the following raw materials in parts by weight: 22 parts of polyurethane, 15 parts of polyethylene terephthalate, 6 parts of ethylene-chlorotrifluoroethylene copolymer , 2.5 parts of silicone masterbatch, 3 parts of zinc stannate, 1 part of benzoyl peroxide and 0.3 part of triallyl isocyanurate, the tensile strength of the outer sheath obtained is 31.7MPa, and the tensile elongation is 530 %.

[0033] The second shielding layer 93 is a braided mesh of tinned copper wire, which is braided by a 16-spindle braiding machine with a braiding density of 90%, wrapped with aluminum foil Mylar on the outside, the wrapping direction is left, and the lapping rate of the wrapping is 50%.

Embodiment 3

[0035] This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. Some differences are:

[0036] The outer sheath is made of anti-cracking material, and the anti-cracking material is made of the following raw materials in parts by weight: 25 parts of polyurethane, 17 parts of polyethylene terephthalate, and 7 parts of ethylene-chlorotrifluoroethylene copolymer , 3 parts of silicone masterbatch, 5 parts of zinc stannate, 1 part of benzoyl peroxide and 0.5 part of triallyl isocyanurate, the tensile strength of the outer sheath obtained is 35.7MPa, and the tensile elongation is 545 %.

[0037] The second shielding layer 93 is a braided mesh of tinned copper wire, braided by a 16-spindle braiding machine, with a braiding density of 90%, wrapped with aluminum foil Mylar on the outside, the wrapping direction is left, and the lapping rate of the wrapping is 50%.

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Abstract

The invention belongs to the technical field of photoelectric composite cables, and particularly relates to a photoelectric composite cable with high stable transmission performance. The photoelectric composite cable sequentially comprises an outer sheath, a tensile layer, an armored layer, a first shielding layer, an insulating layer and a cable core from outside to inside, and the cable core comprises a reinforcing core, an electric unit, an optical fiber unit and a filling rope, wherein the electric unit is arranged at the periphery of the reinforcing core, and the electric unit and the optical fiber unit abut against the reinforcing core. The electric unit and the optical fiber unit are separated by the filling rope, the filling rope abuts against the electric unit and the optical fiber unit, and foamed polypropylene is filled among the reinforcing core, the electric unit, the optical fiber unit, the filling rope and the insulating layer. The optical fiber unit comprises an optical fiber, a protection tube arranged outside the optical fiber and a second shielding layer arranged on the outer wall of the protection tube, and optical fiber ointment is filled between the optical fiber and the protection tube. According to the photoelectric composite cable, the normal transmission of the optical fiber transmission signals is guaranteed, and the photoelectric composite cable is high in overall strength, excellent in tensile strength and wear resistance and is not prone to deformation.

Description

technical field [0001] The invention belongs to the technical field of photoelectric composite cables, and in particular relates to a photoelectric composite cable with high and stable transmission performance. Background technique [0002] Photoelectric composite cable is suitable for broadband access network system as a transmission line. It is a new type of access method. It integrates optical fiber and power transmission copper wire, and can solve the problems of broadband access, equipment power consumption, and signal transmission. At present, during the use of photoelectric composite cables, the electromagnetic waves generated by the current transmitted in the cables are likely to interfere with the transmission signals in the optical fiber cables, and the existing photoelectric composite cables have poor compressive and tensile strength, and are easily damaged during construction. [0003] The Chinese patent with the notification number CN213070657U discloses a metal...

Claims

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Application Information

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IPC IPC(8): H01B7/18H01B7/28H01B7/02H01B9/00H01B9/02H01B11/08H01B11/10H01B11/22G02B6/44C08L75/04C08L67/02C08L23/08C08L83/04C08K3/24
CPCH01B7/18H01B7/1895H01B7/1875H01B7/02H01B7/2806H01B9/005H01B11/22H01B9/02H01B9/024H01B11/10H01B11/1033H01B11/08G02B6/4432C08L75/04C08L2205/035C08L67/02C08L23/0892C08L83/04C08K3/24
Inventor 姚锐陈永高辉刘建平司国强刘阳平黄都刘爽
Owner 国网河南省电力公司西峡县供电公司
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