CN207488588U - A kind of Lightweight nonmetal flame-retardant optical cable - Google Patents
A kind of Lightweight nonmetal flame-retardant optical cable Download PDFInfo
- Publication number
- CN207488588U CN207488588U CN201721689554.2U CN201721689554U CN207488588U CN 207488588 U CN207488588 U CN 207488588U CN 201721689554 U CN201721689554 U CN 201721689554U CN 207488588 U CN207488588 U CN 207488588U
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- Prior art keywords
- flame
- composite band
- optical cable
- retardant
- polyimides composite
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Abstract
The utility model discloses a kind of Lightweight nonmetal flame-retardant optical cable, including：Cable core, the flame retardant coating for being coated on cable core periphery, the low smoke and zero halogen sheath layer for being coated on flame retardant coating periphery, flame retardant coating is two-sided synthetic mica tape or polyimides composite band, polyimides composite band is ceramic polyimides composite band, the thickness of polyimides composite band is 0.12 0.2mm, and the lap width of polyimides composite band is 3 5mm.The compound polyamide tape heat-proof quality of the utility model is excellent, can be resistant to 700 800 DEG C of high temperature, can be applied to different structure flame-retardant optical cable.
Description
Technical field
The utility model is related to technical field of photo communication, and in particular to a kind of Lightweight nonmetal flame-retardant optical cable.
Background technology
In recent years, it is implemented along with the in-depth of " broadband China " strategy and informatization strategy is actively pushed forward, network has become
For the highly important information delivering path in China.It is well known that optical fiber is most crucial original paper in IT application process, in order to make optical fiber
Each field is can be widely used in, improving the protection class of optical fiber has become the most important development goal of each company, therefore hinder
Combustion flame-proof cable is applied and is given birth to, and flame-retardant optical cable can ensure in the event of a fire, and optical cable can be continuing with, and subtract
Few property and personal casualty loss.Therefore, in the fields such as subway, rail traffic and interior conduit, need fire resistant flame retardant grade compared with
High optical cable.
Utility model content
The utility model provides a kind of Lightweight nonmetal flame-retardant optical cable, and the fiber optic cable flame retardant fire resistance is preferable, can
It is widely used in the fields such as subway, rail traffic and interior conduit.
In order to achieve the above objectives, the technical solution of the utility model is as follows：
A kind of Lightweight nonmetal flame-retardant optical cable, including：Cable core, the flame retardant coating for being coated on the cable core periphery, packet
The low smoke and zero halogen sheath layer of the flame retardant coating periphery is overlayed on, the flame retardant coating is compound for two-sided synthetic mica tape or polyimides
Band, the polyimides composite band are ceramic polyimides composite band, and the thickness of the polyimides composite band is 0.12-
0.2mm, the lap width of the polyimides composite band is 3-5mm.
Preferably, the two-sided synthetic mica tape include mica paper and be arranged on the mica paper both sides polyimides it is thin
Film, for the mica paper by Kapton described in glue of preventing fires, the fireproof gum content is 2-5g/m2。
Preferably, the thickness of the mica paper is 0.040-0.080mm, and the Kapton thickness is 0.02-
0.04mm。
Preferably, the cable core includes：Several optical fiber groups, the non-metal reinforcement member for being arranged on cable core center position, with
And with the optical fiber group with the gasket for packing of outer diameter.
Preferably, the optical fiber group includes casing, and the optical fiber being arranged on inside described sleeve pipe is arranged on inside described sleeve pipe
Reinforcer and the gasket for packing that is arranged on inside described sleeve pipe.
The beneficial effects of the utility model are:
1st, the utility model selects the polyimides composite band (flame retardant coating) of novel environment friendly, the compound carrying substrates choosing of polyimides
With polyamide tape, base material passes through Fire retardation fireproof material mixed slurry, and through overbaking, curing, it is compound to form polyimides
Band.Conventional polyamide tape is merely able to bear 400-500 DEG C of high temperature, and no more than 5 hours.Compound polyamide tape
Heat-proof quality is excellent, can be resistant to 700-800 DEG C of high temperature, can be applied to different structure flame-retardant optical cable.
2nd, the ceramic polyolefin or oxygen barrier material that the utility model is selected are a kind of high performance protective cover materials of low smoke and zero halogen, main
Ingredient is wanted to include base polyolefin and a large amount of auxiliary agents.Auxiliary agent mainly include plasticizer, white carbon, the gentle phase fire retardant of siloxanes,
Solid phase fire retardant and special type flame retardant agent, silica are the fire retardants of a type Nano grade, additive amount generally in 3-8%,
Nano type silica is to increase the compatibility between silica and polyolefin, and side-chain siloxane mainly passes through to be formed
Silicates work, and gas phase fire retardant includes magnesium hydroxide and aluminium hydroxide, and additive amount is generally 20-28%, even more.
Special type flame retardant agent is glass microsphere and silicone oil composite, and volume is very light, and inside is hollow, and such fire retardant additive amount is general
5%-7%, glass microsphere swelling heat absorption during burning, forms silicated elastomer, such viscosity of material is big, is readily designed to not
With the sheath of wall thickness specifications, when by high-temp combustion, it is easy to ceramic occur, inside forms partial oxygen vacuum layer, shape
The protective layer fine and close into one layer transmits so as to obstruct flame and heat, makes optical fiber from high temperature.
2nd, the cable configuration of the utility model is novel, and application scenarios are extensive.Flame-retardant optical cable uses nonmetallic list for the first time
Jacket structure, traditional flame-retardant optical cable are usually double sheath, double armature layer metal structure, i.e. 6 layers of three classes back-fire relief heat insulating mould
Formula.Such optic cable diameter is larger, heavier-weight, a large amount of manpower and material resources is needed in laid processes, and application scenarios are smaller,
Bias toward outdoor horizontal directly buried installation.Nonmetallic single-jacketed cable can be applied to interior, vertical run but also horizontal can not only apply
If the laying particularly in vertical pipe is with the obvious advantage.
3rd, rational technology and moulds of industrial equipment are selected ingenious, this utility model is related to one layer of 0.12-0.2mm of setting outside cable core
Polyimides composite band, composite band lap width is generally 3-5mm, if compound bandwidth is too small, be easy to cause flame and
Heat crossfire forms thermal pathways, destroys secondary coating material；If composite band broadband is too big, optical cable shows to will appear not only
The phenomenon that sliding.
Description of the drawings
In order to illustrate more clearly of the technical solution in the utility model embodiment technology, embodiment technology will be retouched below
Attached drawing is briefly described needed in stating, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structure diagram of the utility model optical cable；
Wherein：1- reinforcers, 2- gasket for packings, 3- casings, 4- non-metal reinforcement members, 5- gasket for packings, 6- flame retardant coatings, the low cigarettes of 7-
Halogen sheath.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
Embodiment
As shown in Figure 1, a kind of Lightweight nonmetal flame-retardant optical cable is disclosed in the present embodiment, including：Cable core, cladding
Flame retardant coating 6 in the cable core periphery, the low smoke and zero halogen sheath layer 7 for being coated on 6 periphery of flame retardant coating, the flame retardant coating 6 are
Two-sided synthetic mica tape or polyimides composite band, the polyimides composite band be ceramic polyimides composite band, institute
The thickness for stating polyimides composite band is 0.12-0.2mm, and the lap width of the polyimides composite band is 3-5mm.It is if multiple
Crossed belt width is too small, be easy to cause flame and heat crossfire, forms thermal pathways, destroys secondary coating material；If composite band
Broadband is too big, and optical cable shows to will appear rough phenomenon.
The cable core includes：Several optical fiber groups, the non-metal reinforcement member 4 for being arranged on cable core center position and with institute
State gasket for packing 5 of the optical fiber group with outer diameter.
The optical fiber group includes casing 3, and the optical fiber being arranged on inside described sleeve pipe 3 is arranged on adding inside described sleeve pipe
Strong part 1 and the gasket for packing 2 being arranged on inside described sleeve pipe 3.
The matrix of the polyimides composite band is polyamide tape in the present embodiment, and the polyamide tape is passed through
Flame-retardant slurry impregnates, and by 100-180 DEG C of baking, curing forms polyimides composite band.
The compound carrying substrates of polyimides select polyamide tape, and base material passes through Fire retardation fireproof material mixed slurry, and passes through
Overbaking, curing form polyimides composite band.Conventional polyamide tape is merely able to bear 400-500 DEG C of high temperature, and do not surpass
Spend 5 hours.Compound polyamide tape heat-proof quality is excellent, can be resistant to 700-800 DEG C of high temperature, can be applied to different knots
Structure flame-retardant optical cable.
Embodiment 2
As in Example 1, flame retardant coating is two-sided synthetic mica tape to the structure of cable, described two-sided in embodiment 2
Synthetic mica tape includes mica paper and the Kapton for being arranged on the mica paper both sides, and the mica paper passes through fireproof gum
The Kapton is pasted, the fireproof gum content is 2-5g/m2。
Further, the thickness of the mica paper is 0.040-0.080mm, and the Kapton thickness is 0.02-
0.04mm。
In above-described embodiment 1-2, the ceramic polyolefin or oxygen barrier material of selection are a kind of high performance sheaths of low smoke and zero halogen
Material, main component include base polyolefin and a large amount of auxiliary agents.Auxiliary agent mainly includes plasticizer, white carbon, the gentle phase resistance of siloxanes
It is the fire retardant of a type Nano grade to fire agent, solid phase fire retardant and special type flame retardant agent, silica, and additive amount is generally in 3-
8%, Nano type silica is to increase the compatibility between silica and polyolefin, and side-chain siloxane mainly passes through
It forms silicates to work, gas phase fire retardant includes magnesium hydroxide and aluminium hydroxide, and additive amount is generally 20-28%, even
More.Special type flame retardant agent is glass microsphere and silicone oil composite, and volume is very light, and inside is hollow, such fire retardant additive amount
General 5%-7%, glass microsphere swelling heat absorption during burning, forms silicated elastomer, and such viscosity of material is big, easily designs
Into the sheath of different wall thickness specification, when by high-temp combustion, it is easy to ceramic occur, inside forms partial oxygen vacuum
Layer forms one layer of fine and close protective layer, is transmitted so as to obstruct flame and heat, makes optical fiber from high temperature.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (5)
1. a kind of Lightweight nonmetal flame-retardant optical cable, including：Cable core, the flame retardant coating for being coated on the cable core periphery, cladding
Low smoke and zero halogen sheath layer in the flame retardant coating periphery, which is characterized in that the flame retardant coating is two-sided synthetic mica tape or gathers
Acid imide composite band, the polyimides composite band be ceramic polyimides composite band, the thickness of the polyimides composite band
It spends for 0.12-0.2mm, the lap width of the polyimides composite band is 3-5mm.
2. Lightweight nonmetal flame-retardant optical cable according to claim 1, which is characterized in that the two-sided synthetic mica tape
Including mica paper and the Kapton for being arranged on the mica paper both sides, the mica paper is gathered by preventing fires described in glue
Imide membrane, the fireproof gum content are 2-5g/m2。
3. Lightweight nonmetal flame-retardant optical cable according to claim 2, which is characterized in that the thickness of the mica paper is
0.040-0.080mm, the Kapton thickness are 0.02-0.04mm.
4. Lightweight nonmetal flame-retardant optical cable according to claim 1, which is characterized in that the cable core includes：It is several
Optical fiber group, the non-metal reinforcement member for being arranged on cable core center position and with the optical fiber group with the gasket for packing of outer diameter.
5. Lightweight nonmetal flame-retardant optical cable according to claim 4, which is characterized in that the optical fiber group includes set
Pipe, the optical fiber being arranged on inside described sleeve pipe and are arranged on inside described sleeve pipe the reinforcer being arranged on inside described sleeve pipe
Gasket for packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689554.2U CN207488588U (en) | 2017-12-07 | 2017-12-07 | A kind of Lightweight nonmetal flame-retardant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689554.2U CN207488588U (en) | 2017-12-07 | 2017-12-07 | A kind of Lightweight nonmetal flame-retardant optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207488588U true CN207488588U (en) | 2018-06-12 |
Family
ID=62457999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721689554.2U Withdrawn - After Issue CN207488588U (en) | 2017-12-07 | 2017-12-07 | A kind of Lightweight nonmetal flame-retardant optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207488588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-07 CN CN201721689554.2U patent/CN207488588U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2019109807A1 (en) * | 2017-12-07 | 2019-06-13 | 江苏亨通光电股份有限公司 | Lightweight non-metal flame-retardant fire-resistant 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180612 Effective date of abandoning: 20191029 |