CN2300923Y - Non-metal type fire-resistant optical cable - Google Patents
Non-metal type fire-resistant optical cable Download PDFInfo
- Publication number
- CN2300923Y CN2300923Y CN 97235317 CN97235317U CN2300923Y CN 2300923 Y CN2300923 Y CN 2300923Y CN 97235317 CN97235317 CN 97235317 CN 97235317 U CN97235317 U CN 97235317U CN 2300923 Y CN2300923 Y CN 2300923Y
- Authority
- CN
- China
- Prior art keywords
- metal type
- optical fiber
- proof cable
- type flame
- fiber
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a non-metal type fireproof optical cable. The utility model is characterized in that the reinforcing elements of the non-metal type fireproof optical cable are all made of glass fiber or glass fiber added with plastic, and are squeezed and coated on the surface of the non-metal type fireproof optical cable by low-smoke halogen-free fireproof material. The utility model contains no metal material, so the interference rejection is enhanced. The adopted low-smoke and halogen-free material has high safety guard for human and equipment. In addition, the utility model has the advantages of easy manufacture and low cost.
Description
The utility model belongs to optical fiber, the optical cable field.Or rather, be the optical transmission line optical cable of fiber optic communication network.
Along with fiber optic cable communications are goed deep into to application fields, various users insert fiber cable network and carry out message exchange, and the anti-flammability and the fire-resistance property of optical cable more and more are subject to people's attention.To being used for occasions such as intelligent building, antitheft alarm radio station, hospital, switching room, tunnel, oil depot and military installations, it is very important that the fire performance of optical cable more seems.
At present, the flame-proof cable of external exploitation adopts metal reinforcement and radiator structures such as aluminum alloy framework, stainless-steel tube, steel strand wires or steel-tape armouring respectively, in addition thick again thermal insulation layer and heat-sink shell, thereby size is big, also heavier, not flexible.Owing to contain metal material, many occasions are arranged, its usable range also is restricted.
The utility model will provide a kind of nonmetal formation of using, compact conformation, and in light weight have the safe in utilization of strong anti-electric field interference, and the novel optical cable of excellent fire resistance energy is arranged.
The utility model is finished as follows: optical fiber reinforcement 3 of the present utility model, employing has the glass fibre of one deck polyacrylate-coated by some (can by 12 to 18 or more) surfaces, vertically parallel with optical fiber, evenly distribute around the fiber axis core.General structure is, by several (as figure be 6 also can be more) the outer optical fiber 2 that is surrounded by reinforcement 3 and optical fiber jacket 4, be centered around evenly, symmetrically central reinforce member 1 around, wrapped up by thermofin 5 and cable outer sheath 6 successively.Wherein thermofin 5 is by mica tape and glass tape, and with the compound heat-insulation layer that the form of wall constitutes, cable outer sheath 6 is by halogen-free low-smoke flame retardant material, is extruded in thermofin 5 surrounded surfaces equably; Central reinforce member 1 by the low-smoke non-halogen flame-retardant polymkeric substance, is extruded in and constitutes on the glass fiber reinforced plastics FRP surface; Optical fiber jacket 4 by halogen-free low-smoke flame retardant material, is extruded on the glass fiber yarn surface and constitutes, and the optical fiber 2 in the utility model can be tight tube fiber, also can be loose tube fiber, can also be fibre ribbon.
Accompanying drawing is the utility model structural drawing
The utility model is described in further detail below in conjunction with accompanying drawing.
Cable core of the present utility model adopts line mould assembly structure.Earlier manufacture single fiber cable with tight tube fiber, form cable core around then single fiber cable being stranded in central reinforce member 1, again with the mica tape of the suitable number of plies and glass tape so that the pattern of wall wrapped cable core around constitute thermofin, outside thermofin, extrude the low-smoke non-halogen flame-retardant outer jacket of suitable thickness at last thereafter.
The utility model is a non-metal type, so have fabulous anti-forceful electric power and anti-electromagnetic interference capability, size little (the utility model external diameter is 11mm only) is arranged simultaneously, in light weight, easy to process, the low cost of manufacture advantage has fabulous fire-resistance property, by the fire testing that the suggestion of IEC331 correction is carried out, the optical loss increment is less than 0.2dB after testing and ceased fire 15 minutes in 90 minutes; The used all material of optical cable is selected the low smoke and zero halogen material for use, thereby has the high person and device security guarantee.
Claims (8)
1, a kind of non-metal type flame-proof cable, formed by optical fiber, reinforcement, thermofin and sheath, it is characterized in that optical fiber reinforcement (3) has the glass fibre of one deck polyacrylate-coated by some surfaces, vertically parallel with optical fiber, center on the fiber axis core evenly distribute form:
By several outer optical fiber (2) that is surrounded by reinforcement (3) and optical fiber jacket (4), be centered around evenly, symmetrically central reinforce member (1) around, wrapped up by thermofin (5) and cable outer sheath (6) successively.
2, according to the non-metal type flame-proof cable of claim 1, described thermofin (5) is characterized in that by mica tape and glass tape, the compound heat-insulation layer that constitutes with the form of wall.
3, according to the non-metal type flame-proof cable of claim 1, described cable outer sheath (6) is characterized in that being extruded in thermofin (5) surrounded surface equably by halogen-free low-smoke flame retardant material.
4, according to the non-metal type flame-proof cable of claim 1, described central reinforce member (1) is characterized in that by the low-smoke non-halogen flame-retardant polymkeric substance, is extruded on the glass fiber reinforced plastics FRP surface to constitute.
5, according to the non-metal type flame-proof cable of claim 1, described optical fiber jacket (4) is characterized in that being extruded in by halogen-free low-smoke flame retardant material and constitutes on the glass fiber yarn surface.
6, according to the non-metal type flame-proof cable of claim 1, described optical fiber (2) is characterized in that tight tube fiber.
7, according to the non-metal type flame-proof cable of claim 1, described optical fiber (2) is characterized in that loose tube fiber.
8, according to the non-metal type flame-proof cable of claim 1, described optical fiber (2) is characterized in that fibre ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235317 CN2300923Y (en) | 1997-08-21 | 1997-08-21 | Non-metal type fire-resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97235317 CN2300923Y (en) | 1997-08-21 | 1997-08-21 | Non-metal type fire-resistant optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300923Y true CN2300923Y (en) | 1998-12-16 |
Family
ID=33946452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97235317 Expired - Fee Related CN2300923Y (en) | 1997-08-21 | 1997-08-21 | Non-metal type fire-resistant optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300923Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837951A (en) * | 2012-11-21 | 2014-06-04 | 陈下放 | Improved reinforced cable |
| CN103985445A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Separation-type lightning protection cable |
| WO2019179135A1 (en) * | 2018-03-23 | 2019-09-26 | 烽火通信科技股份有限公司 | Radiation-resistant optical cable and manufacturing method therefor |
-
1997
- 1997-08-21 CN CN 97235317 patent/CN2300923Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837951A (en) * | 2012-11-21 | 2014-06-04 | 陈下放 | Improved reinforced cable |
| CN103985445A (en) * | 2014-06-07 | 2014-08-13 | 吴俊� | Separation-type lightning protection cable |
| WO2019179135A1 (en) * | 2018-03-23 | 2019-09-26 | 烽火通信科技股份有限公司 | Radiation-resistant optical cable and manufacturing method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |