CN108627932A - Self-support cable - Google Patents

Self-support cable Download PDF

Info

Publication number
CN108627932A
CN108627932A CN201810674986.9A CN201810674986A CN108627932A CN 108627932 A CN108627932 A CN 108627932A CN 201810674986 A CN201810674986 A CN 201810674986A CN 108627932 A CN108627932 A CN 108627932A
Authority
CN
China
Prior art keywords
sheath
internal layer
cable
self
cable core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810674986.9A
Other languages
Chinese (zh)
Inventor
王东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Wei Lai Machinery Manufacturing Co Ltd
Original Assignee
Nanjing Wei Lai Machinery Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Wei Lai Machinery Manufacturing Co Ltd filed Critical Nanjing Wei Lai Machinery Manufacturing Co Ltd
Priority to CN201810674986.9A priority Critical patent/CN108627932A/en
Publication of CN108627932A publication Critical patent/CN108627932A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/44384Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Insulated Conductors (AREA)

Abstract

A kind of self-support cable, equipped with optical cable core, steel wire twisted wire cable core and sheath, it is characterized in that, the sheath includes outer protective sleeve and internal layer sheath, the internal layer sheath includes steel wire twisted wire sheath and cable jacket, steel wire twisted wire cable core is arranged in steel wire twisted wire sheath, optical cable core is arranged in cable jacket, it is connected by messenger wire between the steel wire twisted wire sheath and cable jacket, the outer protective sleeve is then wrapped in the outer surface of internal layer sheath, and the outer protective sleeve and internal layer sheath are polythene material.Self-support cable structural planning of the present invention is reasonable, has the advantages that light, suitable laying over long distances, and easy for construction, is suitble to promote the use of.

Description

Self-support cable
Technical field
The invention belongs to fields of communication technology, and in particular to a kind of optical cable.
Background technology
With the continuous development of network construction, the range of the network coverage is also constantly expanding, and optical cable is in addition to from underground and building It builds outside laying, there is also submarine layings, make somebody a mere figurehead situations such as being laid with.Self-support cable full name All Dielectric self-support refers to Optical cable itself stiffener can bear dead weight and external load, due to being to make somebody a mere figurehead to use on electric force pole tower, match so must have Optical cable is fixed on shaft tower by the pendant of set, furthermore the mechanical strength in order to improve its own, generally requires the reinforcement of setting center Part, therefore weight is laid particular stress on respect to ordinary optical cable.
Invention content
The technical purpose of the present invention is to provide a kind of light-weight novel cable, and technical solution is:
A kind of self-support cable is equipped with optical cable core, steel wire twisted wire cable core and sheath, which is characterized in that the sheath includes outer Layer sheath and internal layer sheath, the internal layer sheath include steel wire twisted wire sheath and cable jacket, and steel wire twisted wire cable core is arranged in steel In silk twisted wire sheath, optical cable core is arranged in cable jacket, passes through messenger wire between the steel wire twisted wire sheath and cable jacket Connection, the outer protective sleeve are then wrapped in the outer surface of internal layer sheath, are equipped in the internal layer sheath and gasket for packing is stranded in one The more optical cable units risen, the optical cable unit is made of dry type Loose tube and the optical cable core, the optical cable core by Using the multifiber composition that water blocking yarn is wrapped, the gap between optical cable unit, gasket for packing and internal layer sheath uses material water-proof material Filling, the material water-proof material includes water blocking yarn.
On the basis of said program, it is further improved or preferred scheme further includes:
The outer protective sleeve, internal layer sheath and messenger wire are polythene material.The dry type Loose tube is poly terephthalic acid Butanediol ester material.
The optical fiber is G.654 optical fiber.
The line density of the water blocking yarn is 200~1500m/kg
The outer diameter of the dry type pine set unit is 2.5~3.0mm.
The outer diameter for wrapping up the first jacket portions of optical cable core is more than the second jacket portions of wrapped wire twisted wire cable core, and described the The outer diameter of one jacket portions is 7.5mm, and the distance between the first sheath and the second sheath both ends are 14mm.
Advantageous effect:
Self-support cable structural planning of the present invention is reasonable, have the advantages that it is light, be suitable for long range aerial laying, and construct It is convenient, it is suitble to promote the use of.
Description of the drawings
Fig. 1 is the cross-sectional view of optical cable.
Specific implementation mode
For the technical solution that the present invention is furture elucidated, the present invention is done into one with specific embodiment below in conjunction with the accompanying drawings The introduction of step.
A kind of self-support cable as shown in Figure 1 is made of the part such as optical cable core, steel wire twisted wire cable core and sheath.
The sheath includes outer protective sleeve 1 and internal layer sheath 2, and the internal layer sheath 2 includes steel wire twisted wire sheath and optical cable Sheath, steel wire twisted wire cable core are arranged in steel wire twisted wire sheath, and optical cable core is arranged in cable jacket, the steel wire twisted wire shield It is connected by messenger wire between set and cable jacket, the outer protective sleeve 1 is then wrapped in the outer surface of internal layer sheath 2, the outer layer Sheath 1, internal layer sheath 2 and messenger wire are polythene material.
It is equipped with two optical cable units in the internal layer sheath 2 and 1 gasket for packing, three twist together, the optical cable list Member is made of dry type Loose tube and the optical cable core, and the optical cable core is by more using 4 groups wrapped of optical fiber of water blocking yarn 3 At the dry type Loose tube is polybutylene terephthalate (PBT) material(PET), internal layer protects for optical cable unit, gasket for packing Gap between set 2 is filled using material water-proof material, and the material water-proof material includes water blocking yarn 5.
The optical fiber is G.654 optical fiber, and the line density of water blocking yarn is 200~1500m/kg, and the dry type pine covers unit Outer diameter be 2.5~3.0mm, wrap up the first jacket portions of optical cable core outer diameter be more than wrapped wire twisted wire cable core second The outer diameter of jacket portions, the first jacket portions is 7.5mm, and the distance between the first sheath and the second sheath upper and lower ends are 14mm, the i.e. size of optical cable are 14 × 7.5mm, and cable weighs about as 59~62kg/km, and the present embodiment product is especially suitable for long range It is laid with.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, the present invention Claimed range is delineated by the appended claims, the specification and equivalents thereof from the appended claims.

Claims (6)

1. a kind of self-support cable, it is equipped with optical cable core, steel wire twisted wire cable core and sheath, which is characterized in that the sheath includes Outer protective sleeve(1)With internal layer sheath(2), the internal layer sheath(2)Including steel wire twisted wire sheath and cable jacket, steel wire twisted pair cable Core is arranged in steel wire twisted wire sheath, and optical cable core is arranged in cable jacket, the steel wire twisted wire sheath and cable jacket it Between connected by messenger wire, the outer protective sleeve(1)Then it is wrapped in internal layer sheath(2)Outer surface, the internal layer sheath(2)Inside set There are the more optical cable units twisted together with gasket for packing, the optical cable unit is by dry type Loose tube and the optical cable core structure At the optical cable core is by using water blocking yarn(3)Wrapped multifiber(4)Composition, optical cable unit, gasket for packing and internal layer sheath (2)Between gap using material water-proof material fill, the material water-proof material includes water blocking yarn(5).
2. a kind of self-support cable according to claim 1, which is characterized in that the outer protective sleeve(1), internal layer sheath (2)It is polythene material with messenger wire.The dry type Loose tube is polybutylene terephthalate (PBT) material.
3. a kind of self-support cable according to claim 1 or 2, which is characterized in that the optical fiber is G.654 optical fiber.
4. a kind of self-support cable according to claim 3, which is characterized in that the line density of the water blocking yarn be 200~ 1500m/kg。
5. a kind of self-support cable according to claim 3, which is characterized in that the outer diameter of dry type pine set unit is 2.5~3.0mm.
6. a kind of self-support cable according to claim 1 or 2, which is characterized in that wrap up the first sheath of optical cable core Partial outer diameter is more than the second jacket portions of wrapped wire twisted wire cable core, and the outer diameter of first jacket portions is 7.5mm, the The distance between one sheath and the second sheath both ends are 14mm.
CN201810674986.9A 2018-06-27 2018-06-27 Self-support cable Pending CN108627932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810674986.9A CN108627932A (en) 2018-06-27 2018-06-27 Self-support cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810674986.9A CN108627932A (en) 2018-06-27 2018-06-27 Self-support cable

Publications (1)

Publication Number Publication Date
CN108627932A true CN108627932A (en) 2018-10-09

Family

ID=63689251

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810674986.9A Pending CN108627932A (en) 2018-06-27 2018-06-27 Self-support cable

Country Status (1)

Country Link
CN (1) CN108627932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109683268A (en) * 2019-01-24 2019-04-26 通鼎互联信息股份有限公司 A kind of rat-and-ant proof type all-dielectric self-supporting optical cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109683268A (en) * 2019-01-24 2019-04-26 通鼎互联信息股份有限公司 A kind of rat-and-ant proof type all-dielectric self-supporting optical cable

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WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20181009