CN109116491A - A kind of nonmetallic flame-proof cable - Google Patents
A kind of nonmetallic flame-proof cable Download PDFInfo
- Publication number
- CN109116491A CN109116491A CN201811121880.2A CN201811121880A CN109116491A CN 109116491 A CN109116491 A CN 109116491A CN 201811121880 A CN201811121880 A CN 201811121880A CN 109116491 A CN109116491 A CN 109116491A
- Authority
- CN
- China
- Prior art keywords
- cable core
- layer
- cable
- nonmetallic
- flame
- 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
Links
- 239000010410 layer Substances 0.000 claims abstract description 42
- 239000000835 fiber Substances 0.000 claims abstract description 27
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- 239000013307 optical fiber Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 150000002738 metalloids Chemical group 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 13
- 238000004891 communication Methods 0.000 description 7
- 239000000779 smoke Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000002674 ointment Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
Abstract
The present invention discloses a kind of nonmetallic flame-proof cable, including the fiber unit containing refractory protection, metalloid core part, nonmetallic materials armor, cable core oxygen barrier layer, cable core refractory protection and special type flame retardant oversheath, fiber unit containing refractory protection is stranded in the outer surface of metalloid core part, constitute fiber unit twisted layer, nonmetallic materials armor is the outer surface that non-metallic sheath material is stranded in fiber unit twisted layer, constitute enhanced cable core, the outer wall of cable core is arranged in cable core oxygen barrier layer, constitute cable core first layer protective layer, the outer wall of cable core oxygen barrier layer is arranged in cable core refractory protection, constitute cable core second layer protective layer, the outer wall of cable core refractory protection is arranged in special type flame retardant oversheath, constitute cable core third layer protective layer.Optical fiber loose tube flame retardant coating protection, cable core three layers of fire resistance protection, guarantee flame-proof cable in thermal-flame last longer, it is ensured that flame-proof cable fire behavior occur when can the long period guarantee optical cable steady operation.
Description
Technical field
The present invention relates to field of communication technology, specifically a kind of nonmetallic flame-proof cable.
Background technique
Transmission medium of the communications optical cable as digital communication, has been widely used in each field of wireless communications.However due to
The application places of communications optical cable are different, different to the technical requirements of optical cable.Usually densely populated place (as: market,
Iron, tunnel etc.) and important place (such as: substation, power station, critical facility) the technical of fire resisting is proposed to communications optical cable
It can require.
Currently, the communications optical cable of low-smoke non-halogen flame-retardant oversheath, has certain fire resistance, but fire resistance grade is very
Low, since halogen-free low-smoke flame retardant material can also burn in flame, optical cable can only continue the fire resistance of a few minutes, cannot
Guarantee in thermal-flame (850 DEG C or more) last longer.
Optical fiber cable is used not only for communicating, it is often more important that transmits for data, data acquisition, security control, image pass
Defeated equal various functions.Therefore, once occur fire behavior wish optical cable can continue the larger time fire resistance (such as: 90 minutes and with
On), guarantee that the data transmissions of related setting continue for some time, the optical cable of current low-smoke non-halogen flame-retardant oversheath is difficult to carry on a shoulder pole
When this performance requirement.
Summary of the invention
To solve the above-mentioned problems, the invention discloses a kind of nonmetallic flame-proof cable, existing low-smoke non-halogen flame-retardant is solved
The optical cable of oversheath can not be in thermal-flame the problem of last longer guarantee optical cable steady operation.
The technical solution of the present invention is as follows: a kind of nonmetallic flame-proof cable, including fiber unit, non-gold containing refractory protection
Belong to central part, nonmetallic materials armor, cable core oxygen barrier layer, cable core refractory protection and special type flame retardant oversheath, is protected containing fire resisting
The fiber unit of sheath is stranded in the outer surface of metalloid core part, constitutes fiber unit twisted layer, nonmetallic materials armor
It is the outer surface that non-metallic sheath material is stranded in fiber unit twisted layer, constitutes enhanced cable core, the setting of cable core oxygen barrier layer exists
The outer wall of cable core constitutes cable core first layer protective layer, and the outer wall of cable core oxygen barrier layer is arranged in cable core refractory protection, constitutes cable core
The outer wall of cable core refractory protection is arranged in second layer protective layer, special type flame retardant oversheath, constitutes cable core third layer protective layer.
Further, the fiber unit containing refractory protection includes: that optical fiber, fiber paste, nonmetallic Loose tube and Loose tube are resistance to
Fire bed, Loose tube flame retardant coating are arranged and are connected to the outer wall of nonmetallic Loose tube.
Usefulness of the present invention: being protected, the protection of three layers of fire resistance of cable core by the flame retardant coating of optical fiber loose tube,
Flame-proof cable is effectively ensured in thermal-flame (850 DEG C or more) last longer (90 minutes or more), it is ensured that resistance to flame
Cable can guarantee optical cable steady operation in the long period when fire behavior occurs.
Detailed description of the invention
Fig. 1 is nonmetallic flame-proof cable structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the fiber unit of the invention containing refractory protection；
Wherein: 1, containing the fiber unit of refractory protection, 11, optical fiber, 12, fiber paste, 13, nonmetallic Loose tube, 14, Loose tube it is resistance to
Fire bed, 2, metalloid core part, 3, nonmetallic materials armor, 4, cable core oxygen barrier layer, 5, cable core refractory protection, 6, extraordinary resistance
Fire oversheath.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments
A kind of nonmetallic flame-proof cable, including fiber unit 1, metalloid core part 2, nonmetallic materials armour containing refractory protection
Fill layer 3, cable core oxygen barrier layer 4, cable core refractory protection 5 and special type flame retardant oversheath 6；
Fiber unit 1 containing refractory protection is stranded in the outer surface of metalloid core part 2, constitutes fiber unit twisted layer, tool
When body is implemented, the cable core of optical cable is fiber unit 1 by several containing refractory protection in a jointed manner by certain twisting pitch
It is stranded in the outer surface of metalloid core part 2, wherein metalloid core part 2 can be by FRP material or other nonmetallic materials structures
It can be regular twisted, informal twisted (bundle strand) or compound twisted (multiple to twist) at, above-mentioned stranded mode, direction of lay can be to
It is left or be twisted to the right；
Nonmetallic materials armor 3 is the outer surface that non-metallic sheath material is stranded in fiber unit twisted layer, is constituted enhanced
Cable core；
The outer wall of cable core is arranged in cable core oxygen barrier layer 4, cable core first layer protective layer is constituted, when it is implemented, in the appearance of cable core
Face extrudes certain thickness cable core oxygen barrier layer in a manner of high temperature and pressure, constitutes the first layer protective layer of cable core fire resistance；
The outer wall of cable core oxygen barrier layer 4 is arranged in cable core refractory protection 5, constitutes cable core second layer protective layer, when it is implemented,
The outer surface of cable core oxygen barrier layer 4 forms cable core in a manner of axial wrapped or axial longitudinal wrap using one or more layers refractory material
Refractory protection 5 constitutes the second layer protective layer of cable core fire resistance；
The outer wall of cable core refractory protection 5 is arranged in special type flame retardant oversheath 6, constitutes cable core third layer protective layer, specific implementation
When, in the outer surface of cable core refractory protection 5, in a manner of high temperature and pressure, extrude certain thickness special type flame retardant oversheath 6, structure
At the third layer protective layer of cable core fire resistance.
Fiber unit 1 containing refractory protection includes optical fiber 11, fiber paste 12, nonmetallic Loose tube 13 and Loose tube flame retardant coating
14, Loose tube flame retardant coating 14 is arranged and is connected to the outer wall of nonmetallic Loose tube 13.
It is arranged when it is implemented, optical fiber 11 can be placed in nonmetallic Loose tube 13 with nonmetallic 13 phase of Loose tube, is
It is further ensured that the performance of optical fiber 11, optical fiber ointment 12, optical fiber can be filled between optical fiber 11 and nonmetallic Loose tube 13
Ointment 12 complete cycle can be uniformly arranged between optical fiber 11 and nonmetallic Loose tube 13.Loose tube flame retardant coating 14 is arranged nonmetallic
The outer wall that Loose tube 13 is close to, to improve the fire resistance of Loose tube.
Optical fiber ointment can reduce moisture intrusion or cause the damage to optical fiber to optical fiber friction in fiber unit, also,
The mechanical performance that can guarantee optical fiber, prolongs its service life.In addition, the outer wall of Loose tube is close to flame retardant coating, further protect
The transmission performance of optical fiber and the fire resistance of Loose tube are demonstrate,proved, therefore, the fiber unit is functional, long service life.
Claims (2)
1. a kind of nonmetallic flame-proof cable, it is characterised in that: including fiber unit (1), metalloid core containing refractory protection
Part (2), nonmetallic materials armor (3), cable core oxygen barrier layer (4), cable core refractory protection (5) and special type flame retardant oversheath (6),
The fiber unit (1) containing refractory protection is stranded in the outer surface of metalloid core part (2), and it is twisted to constitute fiber unit
Layer, the nonmetallic materials armor (3) is the outer surface that non-metallic sheath material is stranded in fiber unit twisted layer, constitutes and increases
The outer wall of cable core is arranged in strong type cable core, the cable core oxygen barrier layer (4), constitutes cable core first layer protective layer, the cable core fire resisting
The outer wall in cable core oxygen barrier layer (4) is arranged in protective layer (5), constitutes cable core second layer protective layer, the special type flame retardant oversheath (6)
Outer wall in cable core refractory protection (5) is set, cable core third layer protective layer is constituted.
2. a kind of nonmetallic flame-proof cable according to claim 1, it is characterised in that: the optical fiber containing refractory protection
Unit (1) includes: that optical fiber (11), fiber paste (12), nonmetallic Loose tube (13) and Loose tube flame retardant coating (14), the Loose tube are resistance to
Fire bed (14) is arranged and is connected to the outer wall of the nonmetallic Loose tube (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121880.2A CN109116491A (en) | 2018-09-26 | 2018-09-26 | A kind of nonmetallic flame-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121880.2A CN109116491A (en) | 2018-09-26 | 2018-09-26 | A kind of nonmetallic flame-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109116491A true CN109116491A (en) | 2019-01-01 |
Family
ID=64856687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811121880.2A Pending CN109116491A (en) | 2018-09-26 | 2018-09-26 | A kind of nonmetallic flame-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109116491A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN104345415A (en) * | 2013-07-25 | 2015-02-11 | 上海斯瑞科技有限公司 | Polyethylene fiber composite tape armored cable |
| CN105842806A (en) * | 2016-06-01 | 2016-08-10 | 江苏永鼎股份有限公司 | High-strength, high-flame retardant and fire-resistant optical cable |
| CN105891981A (en) * | 2016-05-20 | 2016-08-24 | 江苏南方通信科技有限公司 | FRP (fiber reinforce plastic) rod armored nonmetal rat-proof optical cable and manufacture process thereof |
| CN208984842U (en) * | 2018-09-26 | 2019-06-14 | 江苏通光光缆有限公司 | A kind of nonmetallic flame-proof cable |
-
2018
- 2018-09-26 CN CN201811121880.2A patent/CN109116491A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345415A (en) * | 2013-07-25 | 2015-02-11 | 上海斯瑞科技有限公司 | Polyethylene fiber composite tape armored cable |
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN105891981A (en) * | 2016-05-20 | 2016-08-24 | 江苏南方通信科技有限公司 | FRP (fiber reinforce plastic) rod armored nonmetal rat-proof optical cable and manufacture process thereof |
| CN105842806A (en) * | 2016-06-01 | 2016-08-10 | 江苏永鼎股份有限公司 | High-strength, high-flame retardant and fire-resistant optical cable |
| CN208984842U (en) * | 2018-09-26 | 2019-06-14 | 江苏通光光缆有限公司 | A kind of nonmetallic flame-proof cable |
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| PB01 | Publication | ||
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