CN103412382A - Fire resisting optical cable - Google Patents
Fire resisting optical cable Download PDFInfo
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- CN103412382A CN103412382A CN2013103218920A CN201310321892A CN103412382A CN 103412382 A CN103412382 A CN 103412382A CN 2013103218920 A CN2013103218920 A CN 2013103218920A CN 201310321892 A CN201310321892 A CN 201310321892A CN 103412382 A CN103412382 A CN 103412382A
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Abstract
The invention relates to a fire resisting optical cable which comprises a fiber core (1), a wrapping layer (2), a fire resisting layer (3) and an inflaming retarding oxygen separating outer sheath (6). The cross section of the inflaming retarding oxygen separating outer sheath (6) is in a circular ring shape, a wrapping tape (4) is arranged inside the inflaming retarding oxygen separating outer sheath (6), the wrapping layer (2) wraps the fiber core (1), the fire resisting layer (3) wraps the wrapping layer (2), an optical fiber is formed by the fiber core (1), the wrapping layer (2) and the fire resisting layer (3), optical cable cores are formed by a plurality of optical fibers in a twisting mode, the optical cable cores are evenly distributed inside the wrapping tape (4), and a ceramic silicone rubber fire resisting layer (5) is further arranged between the wrapping tape (4) and the inflaming retarding oxygen separating outer sheath (6). The fire resisting optical cable has the advantages of being small in outer diameter, light in weight, excellent in fire resisting performance of selected materials and high in heat-shielding performance. The normal using function of the fire resisting optical cable can be guaranteed when a fire hazard happens.
Description
Technical field
The present invention relates to a kind of optical cable, particularly a kind of flame-proof cable.
Background technology
Along with the arrival of information age, the conveying capacity of information becomes explosion type ground to increase.As the effective means of large capacity, long Distance Transmission, optical fiber cable has obtained a large amount of application.The application of optical cable also gradually by long distance line to Metropolitan Area Network (MAN), Access Network future development.The development of industry is promoting the progress of technology, and new cable configuration is constantly released, and new technology constantly is applied.In urban network is from now on built, because optical cable will be by increasing space for relative closure, as occasions such as subway, tunnel, hospital, oil depot, stadiums, meet with accident such as when on fire, must consider its impact on surrounding environment and the person and device security when guaranteeing the optical cable transmission performance, so the fire resistance of optical cable and fire performance must be subject to more attention.
Chinese patent application number: 200810136247.0 disclose a kind of central tube all-dielectric fiber optical cable, comprise loose pipe box, the pine pipe box is extruded with the compound substance of glass fiber reinforced plastics and polyester material outward, in compound substance, is embedded with and tears rope, and compound substance is coated with oversheath.Such optical cable bore is little, be adapted at applying in Metropolitan Area Network (MAN) and Access Network, but the fire performance of this optical cable can not reach the standard of relevant buildings prescribed material.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of external diameter little, lightweight flame-proof cable, selected materials fire performance excellence, heat-proof quality is strong, runs into fire and also can guarantee the normal usage function of optical cable.
Purpose of the present invention is achieved through the following technical solutions: a kind of flame-proof cable, it comprises fibre core, covering, flame retardant coating, fire-retardant oxygen barrier oversheath, the xsect of fire-retardant oxygen barrier oversheath is annular, fire-retardant oxygen barrier oversheath inside is provided with band, the fibre core outside is coated with covering, the covering outside is coated with flame retardant coating, fibre core, covering and flame retardant coating form optical fiber, the some stranded formation Cable Cores of optical fiber are evenly distributed on band inside, also are provided with ceramic silicon rubber flame retardant coating between band and fire-retardant oxygen barrier oversheath oversheath.
Described ceramic silicon rubber flame retardant coating is formed by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
Described ceramic silicon rubber flame retardant coating is by wrapped formation of ceramic silicone rubber fireproof band, and ceramic silicone rubber fireproof band is made by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
Described fire-retardant oxygen barrier oversheath extrudes and forms by 100 parts of ethylene-vinyl acetate copolymers, 10～80 parts, polyolefin elastic body, 10～35 parts of gas-development agents, 1～10 part of blowing promotor, 1～6 part of coupling agent, 1～6 part, antioxidant with by the potpourri of the potpourri of red phosphorus or 6～15 parts of phosphoric acid ester fire retardants, 30～80 parts of magnesium hydroxides, 5～20 parts of Firebrake ZBs or 20～66 parts of APPs, melamine pyrophosphate or 10～36 parts of Quadrafos, 7～24 parts of pentaerythrites, and this fire-retardant oxygen barrier oversheath does not foam or micro-foaming when extruding moulding.
The present invention has the following advantages:
1, ceramic silicon rubber flame retardant coating fireproof＝fire-proof excellent performance, still can ablation form hard containment vessel even surpass its fire endurance, and containment vessel can prevent that flame from further extending to optical cable is inner, guarantees the normal use of optical cable.
2, fire-retardant oxygen barrier oversheath is when optical cable runs into fire, can be heat insulation, group stops external heat to be passed to optical cable inside, when large and duration is longer at extraneous flame, fire-retardant oxygen barrier oversheath reaches one in the temperature rising and regularly starts foaming, after foaming, thickness increases and the heat-insulating capability lifting, further strengthens the effect heat insulation to optical cable inside.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-fibre core, 2-covering, 3-flame retardant coating, 4-band, 5-ceramic silicon rubber flame retardant coating, the fire-retardant oxygen barrier oversheath of 6-.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of flame-proof cable, it comprises fibre core 1, covering 2, flame retardant coating 3, fire-retardant oxygen barrier oversheath 6, the xsect of fire-retardant oxygen barrier oversheath 6 is annular, fire-retardant oxygen barrier oversheath 6 inside are provided with band 4, fibre core 1 outside is coated with covering 2, the covering outside is coated with flame retardant coating 3, fibre core 1, covering 2 and flame retardant coating 3 form optical fiber, the some stranded formation Cable Cores of optical fiber are evenly distributed on band 4 inside, also are provided with ceramic silicon rubber flame retardant coating 5 between band 4 and fire-retardant oxygen barrier oversheath oversheath 6.
Described ceramic silicon rubber flame retardant coating 5 is formed by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
Described ceramic silicon rubber flame retardant coating 5 is by wrapped formation of ceramic silicone rubber fireproof band, and ceramic silicone rubber fireproof band is made by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
Described fire-retardant oxygen barrier oversheath 6 extrudes and forms by 100 parts of ethylene-vinyl acetate copolymers, 10～80 parts, polyolefin elastic body, 10～35 parts of gas-development agents, 1～10 part of blowing promotor, 1～6 part of coupling agent, 1～6 part, antioxidant with by the potpourri of the potpourri of red phosphorus or 6～15 parts of phosphoric acid ester fire retardants, 30～80 parts of magnesium hydroxides, 5～20 parts of Firebrake ZBs or 20～66 parts of APPs, melamine pyrophosphate or 10～36 parts of Quadrafos, 7～24 parts of pentaerythrites, and this fire-retardant oxygen barrier oversheath 6 does not foam or micro-foaming when extruding moulding.
The performance of cable comprises mechanical property and environmental performance, and wherein mechanical property comprises stretching, flattening, impact, bending, after check, needs to meet the following requirements: 1, in the light unit, whole optical fiber does not rupture; 2, oversheath is without the visible crackle of eyesight; 3, each element of the cable core in oversheath is without the visible damage of eyesight.
The correlated performance of optical cable meets communication industry standard YD/T901-2001 optical cable for communication, the oversheath of optical cable is without the visible crackle of eyesight, more than the tension load of composite rope can reach 1200N, its minimum bending radius was 120mm, and can in the environment of-40 ℃～80 ℃, use; In withstand voltage test, add and hold under the condition that voltage is the 1500V AC power, 1 minute duration, insulator is without punch-through.
Claims (4)
1. flame-proof cable, it is characterized in that: it comprises fibre core (1), covering (2), flame retardant coating (3), fire-retardant oxygen barrier oversheath (6), the xsect of fire-retardant oxygen barrier oversheath (6) is annular, fire-retardant oxygen barrier oversheath (6) inside is provided with band (4), fibre core (1) outside is coated with covering (2), the covering outside is coated with flame retardant coating (3), fibre core (1), covering (2) and flame retardant coating (3) form optical fiber, the some stranded formation Cable Cores of optical fiber are evenly distributed on band (4) inside, between band (4) and fire-retardant oxygen barrier oversheath oversheath (6), also be provided with ceramic silicon rubber flame retardant coating (5).
2. a kind of flame-proof cable according to claim 1, it is characterized in that: described ceramic silicon rubber flame retardant coating (5) is formed by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
3. a kind of flame-proof cable according to claim 1, it is characterized in that: described ceramic silicon rubber flame retardant coating (5) is by wrapped formation of ceramic silicone rubber fireproof band, and ceramic silicone rubber fireproof band is made by the composition proportioning of 100 parts, silicon rubber, 20～100 parts of silicon dioxide, 1～20 part of silicone oil, 5～30 parts of halogen-free flame retardants, 0.1～10 part of coupling agent, 20～120 parts of Vitrified powders.
4. a kind of flame-proof cable according to claim 1, it is characterized in that: described fire-retardant oxygen barrier oversheath (6) is by 100 parts of ethylene-vinyl acetate copolymers, 10～80 parts, polyolefin elastic body, 10～35 parts of gas-development agents, 1～10 part of blowing promotor, 1～6 part of coupling agent, 1～6 part, antioxidant and by 6～15 parts of red phosphorus or phosphoric acid ester fire retardants, 30～80 parts of magnesium hydroxides, 20～66 parts of the potpourri that Firebrake ZB is 5～20 parts or APPs, 10～36 parts of melamine pyrophosphate or Quadrafos, the potpourri that pentaerythrite is 7～24 parts extrudes formation, fire-retardant oxygen barrier oversheath (6) does not foam or micro-foaming when extruding moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218920A CN103412382A (en) | 2013-07-29 | 2013-07-29 | Fire resisting optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218920A CN103412382A (en) | 2013-07-29 | 2013-07-29 | Fire resisting optical cable |
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| Publication Number | Publication Date |
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| CN103412382A true CN103412382A (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103218920A Pending CN103412382A (en) | 2013-07-29 | 2013-07-29 | Fire resisting optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272131A (en) * | 2017-08-05 | 2017-10-20 | 南京华信藤仓光通信有限公司 | A kind of flexible flame-proof cable of all dielectric |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964836A (en) * | 2011-08-29 | 2013-03-13 | 深圳市沃尔核材股份有限公司 | Ceramicized silicon rubber, preparation method and application |
| CN103050178A (en) * | 2012-11-14 | 2013-04-17 | 深圳市沃尔核材股份有限公司 | Fire-proof power cable |
| CN103116203A (en) * | 2013-02-03 | 2013-05-22 | 深圳市沃尔核材股份有限公司 | Fire-resistant optical cable |
| CN103123828A (en) * | 2013-02-03 | 2013-05-29 | 深圳市沃尔核材股份有限公司 | Fire-resistant communication cable |
| CN203069851U (en) * | 2013-02-03 | 2013-07-17 | 深圳市沃尔核材股份有限公司 | Fireproof optical cable |
-
2013
- 2013-07-29 CN CN2013103218920A patent/CN103412382A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964836A (en) * | 2011-08-29 | 2013-03-13 | 深圳市沃尔核材股份有限公司 | Ceramicized silicon rubber, preparation method and application |
| CN103050178A (en) * | 2012-11-14 | 2013-04-17 | 深圳市沃尔核材股份有限公司 | Fire-proof power cable |
| CN103116203A (en) * | 2013-02-03 | 2013-05-22 | 深圳市沃尔核材股份有限公司 | Fire-resistant optical cable |
| CN103123828A (en) * | 2013-02-03 | 2013-05-29 | 深圳市沃尔核材股份有限公司 | Fire-resistant communication cable |
| CN203069851U (en) * | 2013-02-03 | 2013-07-17 | 深圳市沃尔核材股份有限公司 | Fireproof optical cable |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国信息产业部: "中华人民共和国通信行业标准YD/T901-2001核心网用光缆-层绞式通信用室外光缆", 《中华人民共和国通信行业标准》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272131A (en) * | 2017-08-05 | 2017-10-20 | 南京华信藤仓光通信有限公司 | A kind of flexible flame-proof cable of all dielectric |
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Application publication date: 20131127 |