CN205861947U - A kind of flame-proof cable - Google Patents
A kind of flame-proof cable Download PDFInfo
- Publication number
- CN205861947U CN205861947U CN201620396341.XU CN201620396341U CN205861947U CN 205861947 U CN205861947 U CN 205861947U CN 201620396341 U CN201620396341 U CN 201620396341U CN 205861947 U CN205861947 U CN 205861947U
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- retardant
- inner sheath
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Abstract
The utility model discloses a kind of flame-proof cable, include mica tape, fire-retardant inner sheath, ceramic composite band, fire-retardant oversheath the most successively；Being provided with nonmetal strengthening core, layer-twisted type cable core within described fire-retardant inner sheath, layer-twisted type cable core is coated with by Loose tube, is provided with optical fiber and is filled with sleeve pipe implant in Loose tube, some described layer-twisted type cable cores centered by nonmetal strengthening core around setting.This utility model flame-proof cable is to keep the properly functioning of certain time in the case of flame combustion, can keep the integrity of circuit.The acid gas amount of smoke produced during the burning of fire resistant flame retardant optical cable is few, and fire resistant flame retardant performance is greatly improved, and particularly when burning, in the case of hitting vibrations along with Water spray and machinery, optical cable still can keep circuit entire run.
Description
Technical field
This utility model relates to optical cable technology field, particularly a kind of flame-proof cable.
Background technology
Along with monitoring and the increase of communication system traffic demand, optical cable is used to replace classical signal line also to become trend.One
As fire-retardant cable in the case of flame combustion, can not keep line traffic reliability, can moment fiber section be burnt, and
And substantial amounts of acid gas smog can be produced the when of optical cable burning, badly influence and normally use and pollute environment.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, it is provided that a kind of flame-proof cable.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: a kind of flame-proof cable, from the inside to the outside
Include mica tape, fire-retardant inner sheath, ceramic composite band, fire-retardant oversheath successively；It is provided with non-gold within described fire-retardant inner sheath
Belonging to strengthening core, layer-twisted type cable core, layer-twisted type cable core is coated with by Loose tube, is provided with optical fiber and is filled with sleeve pipe filling in Loose tube
Thing, some described layer-twisted type cable cores centered by nonmetal strengthening core around setting.
In technique scheme, described fire-retardant inner sheath and fire-retardant oversheath are bittern-free flame-proof material.
In technique scheme, in described fire-retardant inner sheath, it is filled with cable cream.
The beneficial effects of the utility model are: flame-proof cable is to keep the normal of certain time in the case of flame combustion
Run, the integrity of circuit can be kept.The acid gas amount of smoke produced during the burning of fire resistant flame retardant optical cable is few, and fire resistant flame retardant performance is significantly
Improving, particularly when burning, in the case of hitting vibrations along with Water spray and machinery, optical cable still can keep circuit completely to transport
OK.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure, 1, mica tape；2, fire-retardant inner sheath；3, ceramic composite band；4, fire-retardant oversheath；5, nonmetal reinforcement
Core；6, Loose tube；7, sleeve pipe implant；8, optical fiber；9, cable cream.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail.
As it is shown in figure 1, a kind of flame-proof cable, include that mica tape 1, fire-retardant inner sheath 2, ceramic are compound the most successively
Band 3, fire-retardant oversheath 4；Be provided with nonmetal strengthening core 5, layer-twisted type cable core within described fire-retardant inner sheath 2, layer-twisted type cable core by
Loose tube 6 is coated with, and is provided with optical fiber 8 and is filled with sleeve pipe implant 7 in Loose tube 6, and some described layer-twisted type cable cores are with non-gold
Around setting centered by belonging to strengthening core 5.
Wherein, described fire-retardant inner sheath 2 and fire-retardant oversheath 4 are bittern-free flame-proof material.Fire-retardant inner sheath 2 and fire-retardant outer protect
Set 4 burns 90 minutes through 750 DEG C ± 50 DEG C, and after cooling down 15 minutes, optical cable inner fiber 8 communicates normally；There is good mechanicalness
Energy, temperature characterisitic and fire resistance；There is good compressive property and flexibility；There is good block-water performance, humidity resistance.
Wherein, it is filled with cable cream 9 in described fire-retardant inner sheath 2.
Fire resistance test is carried out by the method for regulation in IEC60331-11 and IEC60331-25.
(1) test should carry out in a suitable chest, case should have remove because of burning produce poison device and
Ventilation unit.The ambient temperature that proof box is placed is 5 DEG C～40 DEG C；
(2) sample should be one section of finished cable, and at least 5 m length are horizontally supported in case, and two ends pass outside case；
(3) optical fiber is connected in fiber optic testing instrument, under the wavelength of regulation, monitors and/or measures optical transport change；
(4) supplying the fire time is 90 minutes.
Experimental result:
Before fire resistance test, in test optical fibre cables, an optical fiber 1550nm wavelength loss is: 0.201dB, burning 90 minutes,
After cooling down 15 minutes again, measuring same optical fiber 1550nm wavelength loss in optical cable is: 0.225dB, test result is qualified.
Above embodiment simply indicates that rather than limits this utility model, therefore all according to this utility model patent application
The equivalence that method described in scope is done changes or modifies, and is all included in this utility model patent claim.
Claims (3)
1. a flame-proof cable, it is characterised in that: include the most successively mica tape, fire-retardant inner sheath, ceramic composite band,
Fire-retardant oversheath；Being provided with nonmetal strengthening core, layer-twisted type cable core within described fire-retardant inner sheath, layer-twisted type cable core is by Loose tube institute
Cladding, is provided with optical fiber and is filled with sleeve pipe implant, during some described layer-twisted type cable cores with nonmetal strengthening core are in Loose tube
The heart and around setting.
A kind of flame-proof cable the most according to claim 1, it is characterised in that: described fire-retardant inner sheath and fire-retardant oversheath are
Bittern-free flame-proof material.
A kind of flame-proof cable the most according to claim 1, it is characterised in that: it is filled with cable cream in described fire-retardant inner sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396341.XU CN205861947U (en) | 2016-05-05 | 2016-05-05 | A kind of flame-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396341.XU CN205861947U (en) | 2016-05-05 | 2016-05-05 | A kind of flame-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205861947U true CN205861947U (en) | 2017-01-04 |
Family
ID=57643082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620396341.XU Active CN205861947U (en) | 2016-05-05 | 2016-05-05 | A kind of flame-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205861947U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561655A (en) * | 2017-08-25 | 2018-01-09 | 长飞光纤光缆股份有限公司 | A kind of detectable layer-stranding cable |
| CN107765384A (en) * | 2017-12-07 | 2018-03-06 | 江苏亨通光电股份有限公司 | A kind of Lightweight nonmetal flame-retardant optical cable |
| CN109100845A (en) * | 2018-09-11 | 2018-12-28 | 山东太平洋光纤光缆有限公司 | A kind of half dry type fire resisting resistance to mechanical vibration photoelectric composite optical cable and preparation method thereof |
-
2016
- 2016-05-05 CN CN201620396341.XU patent/CN205861947U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561655A (en) * | 2017-08-25 | 2018-01-09 | 长飞光纤光缆股份有限公司 | A kind of detectable layer-stranding cable |
| CN107765384A (en) * | 2017-12-07 | 2018-03-06 | 江苏亨通光电股份有限公司 | A kind of Lightweight nonmetal flame-retardant optical cable |
| CN107765384B (en) * | 2017-12-07 | 2019-10-29 | 江苏亨通光电股份有限公司 | A kind of Lightweight nonmetal flame-retardant optical cable |
| EP3722851A4 (en) * | 2017-12-07 | 2021-01-06 | Hengtong Optic-Electric Co., Ltd. | Lightweight non-metal flame-retardant fire-resistant optical cable |
| CN109100845A (en) * | 2018-09-11 | 2018-12-28 | 山东太平洋光纤光缆有限公司 | A kind of half dry type fire resisting resistance to mechanical vibration photoelectric composite optical cable and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |