CN206339730U - A kind of central beam tube dry type fire resistant flame retardant optical cable - Google Patents
A kind of central beam tube dry type fire resistant flame retardant optical cable Download PDFInfo
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- CN206339730U CN206339730U CN201720326434.XU CN201720326434U CN206339730U CN 206339730 U CN206339730 U CN 206339730U CN 201720326434 U CN201720326434 U CN 201720326434U CN 206339730 U CN206339730 U CN 206339730U
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Abstract
The utility model is related to a kind of central beam tube dry type fire resistant flame retardant optical cable, the light unit that optical cable is set gradually including from-inner-to-outer, internal layer flame-retardant layer, internal layer sheath, outer layer flame-retardant layer and outer protective sleeve, light unit is placed in optical cable center, light unit is by optical fiber, water blocking yarn, Loose tube is constituted, optical fiber is dissipated in Loose tube, some water blocking yarns are placed between optical fiber and Loose tube, internal layer flame-retardant layer is set outside light unit, internal layer flame-retardant layer is by fire-resistant isinglass belt one, refractory glass fiber braiding layer one is constituted, internal layer flame-retardant layer is outer to set internal layer sheath, internal layer sheath is externally provided with outer layer flame-retardant layer, outer layer flame-retardant layer is by fire-resistant isinglass belt two, waterstop, refractory glass fiber braiding layer two is constituted, the outer extrusion molding of outer layer flame-retardant layer has outer protective sleeve；The utility model performance such as there is nonmetallic tension resistance, high fire-retardance fire resisting, dry type to block water, and cable size and weight are reduced, convenient construction reduces cost, more environmentally-friendly.
Description
[technical field]
The utility model is related to optical fiber cable technical field, specifically a kind of central beam tube dry type fire resistant flame retardant light
Cable.
[background technology]
Proposition with national " 13 " planning outline to expansion network economy space, the utilization place of optical cable is increasingly
It is many.During generation fire, ordinary optical cable resistance to compression tensile property is poor, the shortcoming of not fire-retardant not fire resisting etc., makes it except can be by big fire
Infringement, can also because weight tap, cast impact etc., the appearance in rescue operations situations such as fire-fighting Water spray, make optical cable by
To infringement, transmission performance is influenceed, or even cause signal transmission to be interrupted.And substantial amounts of acid gas smog is produced when burning, directly damage
Health.Use layer-twisted type structure in general flame-proof cable, fine cream and metal tape are as blocking water and refractory component, although gram
The some drawbacks of ordinary optical cable have been taken, but have been also increased because fine cream uses the new problems such as infringement health, pollution environment
Occur, and cable core layer is twisted and metal tape fire resisting not only makes cable size big, the weight of optical cable is also increased, for the installation of optical cable
Construction is extremely inconvenient.
[utility model content]
The purpose of this utility model seeks to solve above-mentioned deficiency and provide a kind of central beam tube dry type fire resistant flame retardant light
Cable, not only the performance such as blocks water with nonmetallic tension resistance, high fire-retardance fire resisting, dry type, and reduces cable size and weight,
Convenient construction, reduces cost, more environmentally-friendly.
A kind of central beam tube dry type fire resistant flame retardant optical cable is designed to achieve the above object, and the section of the optical cable is rounded,
Light unit that the optical cable is set gradually including from-inner-to-outer, internal layer flame-retardant layer, internal layer sheath 5, outer layer flame-retardant layer
With outer protective sleeve 8, the light unit is placed in optical cable center, and the light unit is made up of optical fiber 1, water blocking yarn 2, Loose tube 3,
The optical fiber 1 is dissipated in Loose tube 3, is placed between the optical fiber 1 and Loose tube 3 outside some water blocking yarns 2, the light unit
Internal layer flame-retardant layer is set, and the internal layer flame-retardant layer is by the 6a of fire-resistant isinglass belt one, the 4a of refractory glass fiber braiding layer one
Composition, the 6a of fire-resistant isinglass belt one it is wrapped outside light unit after by the 4a of refractory glass fiber braiding layer one shape, the internal layer
Flame-retardant layer is outer to set internal layer sheath 5, and the internal layer sheath 5 is outer to be surrounded with the 6b of fire-resistant isinglass belt two and waterstop 7, institute successively
State and refractory glass fiber braiding layer two 4b, the 6b of fire-resistant isinglass belt two, waterstop 7, fireproof glass fibre are fixed with outside waterstop 7
Tie up the 4b of braiding layer two and constitute outer layer flame-retardant layer, the outer extrusion molding of the outer layer flame-retardant layer has outer protective sleeve 8.
Further, the Loose tube 3 is made of PBT engineering thermoplastic materials.
Further, the internal layer sheath 5, outer protective sleeve 8 are made of high fire-retardance fire resisting low smoke and zero halogen material.
Further, the inner fiber 1 of Loose tube 3 is the optical fiber of 2-48 core numbers, and some water blocking yarns 2 are placed in optical fiber 1 and light
In gap between fibre 1, optical fiber 1 and Loose tube 3.
The utility model compared with the existing technology, has the following advantages that：
(1) ultra-low-loss fiber that the utility model is used can effectively increase the length of span, reduce time of amplification
Number is to increase transmission range, and special water blocking yarn replaces the use of fine cream in conventional cable, and it not only possesses block-water effect, and
Will not in fire it is combustion-supporting and produce pollution environment harmful substance, reduce influence of the construction wrong to human body, optical fiber, it is convenient
The operation and maintenance of optical cable, more saves maintenance cost；
(2) the double-deck refractory glass fiber braiding layer and the structure of sheath used, not only increases tension resistance performance, accords with
Fire resistant flame retardant performance requirement is closed, even more optical cable is in fire and during the disaster relief, though sprayed with cold water and machinery strike shake
Move, can still keep in communication the powerful guarantee used；
(3) it is that material has fire-retardant, fire resisting, low smoke and zero halogen etc. the reason for ectonexine sheath selection high fire-retardance refractory material
Characteristic, it is ensured that optical cable only produces a small amount of acid gas smog, and then reduction pair to greatest extent when fire occurs while effectively operation
The infringement of human body, instrument and equipment；
(4) presence of fire resistant belt and waterstop, improves optical cable and is normally used in the case of humid climate or outdoor have water
Probability；
(5) center beam tube rather than stranded structure substantially reduce the size of optical cable, and the use of non-metal component mitigates light
The weight of cable, takes up an area optical cable small, construction maintenance is convenient, more environmentally-friendly.
[brief description of the drawings]
Fig. 1 is structural representation of the present utility model；
In figure：1st, optical fiber 2, water blocking yarn 3, Loose tube 4a, the 4b of refractory glass fiber braiding layer one, refractory glass fiber
Braiding layer 25, internal layer sheath 6a, the 6b of fire-resistant isinglass belt one, fire-resistant isinglass belt 27, waterstop 8, outer protective sleeve.
[embodiment]
Further explained below is made to the utility model below in conjunction with the accompanying drawings：
As shown in Figure 1, the section of optical cable described in the utility model is rounded, and optical cable is set gradually including from-inner-to-outer
Light unit, internal layer flame-retardant layer, internal layer sheath 5, outer layer flame-retardant layer and outer protective sleeve 8, light unit are placed in optical cable center
Position, light unit is made up of optical fiber 1, water blocking yarn 2, Loose tube 3, and Loose tube 3 is made of PBT engineering thermoplastic materials, and optical fiber 1 dissipates
It is put in Loose tube 3, is placed between optical fiber 1 and Loose tube 3 outside some water blocking yarns 2, light unit and internal layer flame-retardant layer is set,
Internal layer flame-retardant layer is made up of the 6a of fire-resistant isinglass belt one, the 4a of refractory glass fiber braiding layer one, and the 6a of fire-resistant isinglass belt one is wrapped
Shaped after outside light unit by the 4a of refractory glass fiber braiding layer one, internal layer flame-retardant layer is outer to set internal layer sheath 5, internal layer shield
Outer be surrounded with successively outside the 6b of fire-resistant isinglass belt two and waterstop 7, waterstop 7 of set 5 is fixed with the 4b of refractory glass fiber braiding layer two,
The 6b of fire-resistant isinglass belt two, waterstop 7, the 4b of refractory glass fiber braiding layer two constitute outer layer flame-retardant layer, outer layer flame-retardant
The outer extrusion molding of layer has outer protective sleeve 8, and internal layer sheath 5, outer protective sleeve 8 are made of high fire-retardance fire resisting low smoke and zero halogen material.
The utility model includes light unit, internal layer flame-retardant layer, internal layer sheath, outer layer flame-retardant layer from inside to outside
And outer protective sleeve, light unit is put in center, outside wrapping inner layer flame-retardant layer, internal layer sheath, outer layer flame-retardant successively
Layer and outer protective sleeve, the central beam tube type structure are compared to layer-twisted type, and structure is simpler, smaller.Light unit includes
Ultra-low-loss fiber, Loose tube and special water blocking yarn, Loose tube are made up of high tough and tensile engineering thermoplastic material PBT, such material
Made Loose tube intensity is high, and ageing resistace is good, and any number of optical fiber of 2 to 48 cores, Ruo Gante can be placed in Loose tube
Water blocking yarn processed is placed in the gap between optical fiber and optical fiber, optical fiber and Loose tube, to reach block-water effect, and this special water blocking yarn
Specification is small, lightweight, takes up space few, while steam expansion is absorbed, also optical fiber will not be caused to extrude and influence to use.
Internal layer flame-retardant layer is made up of fire-resistant isinglass belt one and refractory glass fiber braiding layer one, and fire-resistant isinglass belt one is wrapped in light list
Shaped after first outer by refractory glass fiber organization level one, property is crisp by its for refractory glass fiber braiding layer one, the shortcoming that wears no resistance
Made up, more strengthen its pull resistance；Outer layer flame-retardant layer includes fire-resistant isinglass belt two, waterstop and fire resisting successively
Fiberglass braided layer two, fire-resistant isinglass belt two and waterstop are wrapped outside internal layer sheath successively, then set refractory glass fiber
Organization level two is fixed, and substantially increases the resistance to compression tension and fire resistance of optical cable.Material water-proof material used by optical cable is special resistance
Water yarn and waterstop, no ointment filling, dry type are blocked water, and convenient construction is safeguarded, environmental protection.Optical cable is using double refractory glass fibers
Rotating fields are woven, not only with preferable resistance to compression tensile property, fire resisting effect, and the weight of nonmetallic reinforcing element are improved
Amount is lighter compared with metal tape refractory component.Flame-retardant layer all includes fire-resistant isinglass belt inside and outside optical cable, enhances optical cable
Fire resistance.Ectonexine sheath uses high fire-retardance fire resisting low smoke and zero halogen material, then when meeting optical cable indoor and outdoor well and using
The use requirement of flame-retardant performance, its outer protective sleeve further enhances the effect of fiber cable fireproof.
Central beam tube dry type fire resistant flame retardant optical cable outward appearance described in the utility model be round shape, including light unit, internal layer hinder
Flame retardant coating, internal layer sheath, outer layer flame-retardant layer and outer protective sleeve are fired, light unit is by optical fiber, special water blocking yarn and high tough and tensile work
Journey thermoplastic material PBT Loose tubes are constituted, and internal layer flame-retardant layer are set outside light unit, it is by fire-resistant isinglass belt one, fire resisting glass
Glass fiber braiding layer one is constituted, wrapped fire-resistant isinglass belt two and waterstop outside high fire-retardance fire resisting inner sheath, and fine with fireproof glass
Dimension braiding layer two constitutes outer layer flame-retardant layer, the last final stranding of extrusion molding outer protective sleeve.The double refractory glass fibers of the optical cable
Braiding layer enhances resistance to compression pull resistance, the use of double fire-resistant isinglass belt and ectonexine sheaths, and making fiber cable fireproof fire-retardant etc., performance has
Greatly promoted；Special water blocking yarn and waterstop make fiber cable laying convenient as the dry construction design for the means of blocking water, construction dimension
Protect cost savings；Nonmetallic materials and center bundle tube structure, make cable size small, lightweight, it is adaptable to indoor (building) communication
The indoor and outdoor such as occasion, high speed place.
Claims (4)
1. a kind of central beam tube dry type fire resistant flame retardant optical cable, it is characterised in that：The section of the optical cable is rounded, the optical cable bag
Include light unit, internal layer flame-retardant layer, internal layer sheath (5), outer layer flame-retardant layer and outer layer shield that from-inner-to-outer is set gradually
Cover (8), the light unit is placed in optical cable center, and the light unit is made up of optical fiber (1), water blocking yarn (2), Loose tube (3),
The optical fiber (1) is dissipated in Loose tube (3), and some water blocking yarns (2), institute are placed between the optical fiber (1) and Loose tube (3)
State and set outside light unit internal layer flame-retardant layer, the internal layer flame-retardant layer is fine by fire-resistant isinglass belt one (6a), fireproof glass
Tie up braiding layer one (4a) composition, the fire-resistant isinglass belt one (6a) it is wrapped outside light unit after by refractory glass fiber braiding layer one
(4a) shapes, and the internal layer flame-retardant layer is outer to set internal layer sheath (5), and the internal layer sheath (5) is surrounded with fire resisting successively outside
Refractory glass fiber braiding layer two (4b) is fixed with outside mica tape two (6b) and waterstop (7), the waterstop (7), it is described resistance to
Fiery mica tape two (6b), waterstop (7), refractory glass fiber braiding layer two (4b) constitute outer layer flame-retardant layer, the outer layer
The outer extrusion molding of flame-retardant layer has outer protective sleeve (8).
2. central beam tube dry type fire resistant flame retardant optical cable as claimed in claim 1, it is characterised in that：The Loose tube (3) uses
PBT engineering thermoplastic materials are made.
3. central beam tube dry type fire resistant flame retardant optical cable as claimed in claim 2, it is characterised in that：It is the internal layer sheath (5), outer
Layer sheath (8) is made of high fire-retardance fire resisting low smoke and zero halogen material.
4. central beam tube dry type fire resistant flame retardant optical cable as claimed in claim 3, it is characterised in that：The interior light of the Loose tube (3)
Fine (1) is the optical fiber of 2-48 core numbers, some water blocking yarns (2) be placed in optical fiber (1) and optical fiber (1), optical fiber (1) and Loose tube (3) it
Between gap in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326434.XU CN206339730U (en) | 2017-03-30 | 2017-03-30 | A kind of central beam tube dry type fire resistant flame retardant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326434.XU CN206339730U (en) | 2017-03-30 | 2017-03-30 | A kind of central beam tube dry type fire resistant flame retardant optical cable |
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| Publication Number | Publication Date |
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| CN206339730U true CN206339730U (en) | 2017-07-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761688A (en) * | 2018-06-26 | 2018-11-06 | 江苏亨通光电股份有限公司 | A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology |
| CN111007604A (en) * | 2019-12-02 | 2020-04-14 | 广州亚太线缆科技有限公司 | Flame-retardant composite optical cable |
| CN112462478A (en) * | 2020-12-10 | 2021-03-09 | 安徽长荣光纤光缆科技有限公司 | Flame-retardant high-temperature-resistant optical cable and using method thereof |
| WO2021227477A1 (en) * | 2020-05-14 | 2021-11-18 | 江苏亨通光电股份有限公司 | Metal tube-type lightweight armored flame-retardant fire-resistant optical cable |
-
2017
- 2017-03-30 CN CN201720326434.XU patent/CN206339730U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761688A (en) * | 2018-06-26 | 2018-11-06 | 江苏亨通光电股份有限公司 | A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology |
| CN111007604A (en) * | 2019-12-02 | 2020-04-14 | 广州亚太线缆科技有限公司 | Flame-retardant composite optical cable |
| WO2021227477A1 (en) * | 2020-05-14 | 2021-11-18 | 江苏亨通光电股份有限公司 | Metal tube-type lightweight armored flame-retardant fire-resistant optical cable |
| EP3974884A4 (en) * | 2020-05-14 | 2023-07-05 | Hengtong Optic-Electric Co., Ltd. | Metal tube-type lightweight armored flame-retardant fire-resistant optical cable |
| CN112462478A (en) * | 2020-12-10 | 2021-03-09 | 安徽长荣光纤光缆科技有限公司 | Flame-retardant high-temperature-resistant optical cable and using method thereof |
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