CN204613467U - Fire-retardant cable - Google Patents
Fire-retardant cable Download PDFInfo
- Publication number
- CN204613467U CN204613467U CN201520213007.1U CN201520213007U CN204613467U CN 204613467 U CN204613467 U CN 204613467U CN 201520213007 U CN201520213007 U CN 201520213007U CN 204613467 U CN204613467 U CN 204613467U
- Authority
- CN
- China
- Prior art keywords
- fire
- cable core
- retardant
- cable
- optical fiber
- 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.)
- Expired - Fee Related
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of fire-retardant cable; comprise cable core, protective seam and oversheath; described protective seam comprises aerosil fexible film thermofin, mica belt, and its order is from the inside to the outside mica belt, aerosil fexible film thermofin.The utility model utilizes aerosil fexible film thermofin to carry out isolated external heat, avoids cable core to be burnt destruction, utilizes mica belt to improve cable strength and fire retardancy, utilizes the fire retardant jacket of cable core to protect inner optical fiber further simultaneously.Utilize central reinforce member to improve cable core intensity, avoid burning the fracture of rear cable core.
Description
Technical field
The utility model relates to a kind of fire-retardant cable, belongs to technical field of optical fiber communication.
Background technology
The protective seam of current fire-retardant cable mainly contains metal armor layers, glass tape or Mica tape layer, fire retardant jacket etc.; fire retardant jacket is utilized to absorb the effect of heat at high temperature; prevent sheath from burning; expand fire scope; fire-retardant cable was burnt through a period of time, still can keep good optical property.Utilize metal armouring structure especially, play the effect intercepting flame and internally burn away, but this kind of optical cable is owing to burning destruction for a long time, can cause optical fiber fragility fracture, thus causes the interruption of signal transmission, impact communication; Although cable core inside is not directly subject to extraneous flame burn, but in fray-out of flame cooling procedure, the contraction of optical cable surfacing also can cause optical fiber surface adhesive stress, damage optical fiber, thus make signal transmission distortion or interruption, traditional optical cable, the general measure improving flame-retardant performance is the fire resistance strengthening protecting sleeve of optical cable.But owing to also there is the non-flame resistant materials such as Loose tube, fine cream, ointment in optical cable, be therefore difficult to the fire resistance ensureing optical cable.
Utility model content
The utility model technical issues that need to address are to provide a kind of superior flame retardant property, and standing concrete on fire, cable core is without prejudice, can ensure proper communication fire-retardant cable.
For solving the problem, technical solution adopted in the utility model is:
A kind of fire-retardant cable, comprise cable core, protective seam and oversheath, described protective seam comprises aerosil fexible film thermofin, mica belt, and its order is from the inside to the outside mica belt, aerosil fexible film thermofin.
Further, described cable core comprises central reinforce member, Loose tube, optical fiber, optical fiber ointment, cable core filling material, wherein many Loose tube are evenly centered around central reinforce member surrounding, optical fiber is positioned at Loose tube, gap between optical fiber is filled by optical fiber ointment, and the gap between Loose tube is filled by cable core filling material.
Preferably, described central reinforce member is non-metal reinforcement member.
Further, described cable core also comprises halogen low-smoke flame-proof polyolefin fire retardant jacket,
Preferably, described oversheath is halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket.
The beneficial effect adopting technique scheme to produce is:
The utility model utilizes aerosil fexible film thermofin to carry out isolated external heat, avoids cable core to be burnt destruction, utilizes mica belt to improve cable strength and fire retardancy, utilizes the fire retardant jacket of cable core to protect inner optical fiber further simultaneously.Utilize central reinforce member to improve cable core intensity, avoid burning the fracture of rear cable core.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein: 1, oversheath, 2, central reinforce member, 3, aerosil fexible film thermofin, 4, mica belt, 5, halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket, 6, Loose tube, 7, optical fiber.
Embodiment
Below in conjunction with accompanying drawing, utility model is described in further detail:
The utility model is a kind of fire-retardant cable, compares traditional fire-retardant cable, and this optical cable adopts overcoat heat absorption, aerosil fexible film is heat insulation, and the multi-layer fire-retarded structural design of mica belt anti-flaming thermal-insulation, after burning for a long time, optical cable core is not damaged, and also can keep normal communication.
Aerosil fexible film characteristic: adopt polyimide flex film as the skeleton of whole membraneous material, aerosil porous coating is coated on flexible Kapton, and the method adopting thermal evaporation to aluminize at the another side of Kapton prepares the metal level with high reverse--bias performance.The main body of film thermal insulation is aerosil porous coating, has lower thermal conductivity and the light feature of quality.Kapton heatproof is high, and heat-insulating property is also better.Aluminum metal layer can reduce radiation heat effectively.
As shown in Figure 1, the utility model comprises cable core, is arranged on the protective seam outside cable core and outermost oversheath 1, and wherein protective seam order is from the inside to the outside mica belt 4, aerosil fexible film thermofin 3 successively.Described oversheath 1 adopts halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket, when fire, play certain fireproofing function, it plays the crucial of fire retardation or aerosil fexible film thermofin 3, aerosil fexible film thermofin 3 has excellent heat-proof quality, stop heat to cable core transmission, burn the heat being delivered to cable core for a long time and also can not damage cable core.In order to heat insulation further, and improve the intensity of optical cable, inside adjacent aerosil fexible film thermofin, mica belt 4 is set.
Cable core of stating of the present utility model comprises central reinforce member 2, Loose tube 6, optical fiber 7, optical fiber ointment, cable core filling material, wherein many Loose tube 6 are evenly centered around central reinforce member 2 surrounding, optical fiber 7 is positioned at Loose tube 6, gap between optical fiber 7 is filled by optical fiber ointment, and the gap between Loose tube 6 is filled by cable core filling material.In order to alleviate optical cable weight, avoid thunderbolt etc., central reinforce member 2 adopts non-metal reinforcement member.Reinforcement ensure that intensity and the tensile property of optical cable.
In order to ensure that optical cable uses at important security applications, not by the damage of fire, meet the standard of zero tolerance, halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket 5 is also provided with outside described cable core, the interpolation of this layer of sheath, even if make optical cable under the fire condition of especially severe, also can ensure that cable core is not damaged, ensure proper communication.
Claims (5)
1. a fire-retardant cable; comprise cable core, protective seam and oversheath (1); it is characterized in that: described protective seam bag aerosil fexible film thermofin (3), mica belt (4), its order is from the inside to the outside mica belt (4), aerosil fexible film thermofin (3).
2. fire-retardant cable according to claim 1, it is characterized in that described cable core comprises central reinforce member (2), Loose tube (6), optical fiber (7), optical fiber ointment, cable core filling material, wherein many Loose tube (6) are evenly centered around central reinforce member (2) surrounding, optical fiber (7) is positioned at Loose tube (6), gap between optical fiber (7) is filled by optical fiber ointment, and the gap between Loose tube (6) is filled by cable core filling material.
3. fire-retardant cable according to claim 1, is characterized in that described central reinforce member (2) is non-metal reinforcement member.
4. fire-retardant cable according to claim 1 and 2, is characterized in that described cable core also comprises halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket (5).
5. fire-retardant cable according to claim 1, is characterized in that described oversheath (1) is for halogen-free and low-smoke flame-retardant polyolefin fire retardant jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213007.1U CN204613467U (en) | 2015-04-10 | 2015-04-10 | Fire-retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213007.1U CN204613467U (en) | 2015-04-10 | 2015-04-10 | Fire-retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613467U true CN204613467U (en) | 2015-09-02 |
Family
ID=53966014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520213007.1U Expired - Fee Related CN204613467U (en) | 2015-04-10 | 2015-04-10 | Fire-retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204613467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
-
2015
- 2015-04-10 CN CN201520213007.1U patent/CN204613467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594556A (en) * | 2022-01-14 | 2022-06-07 | 杭州富通通信技术股份有限公司 | Flame-retardant optical cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204613464U (en) | Flame-proof cable | |
| CN202548395U (en) | Stainless steel tube type armoring fire-resistant optical cable | |
| CN104199156A (en) | Flame-retardant and fire-retardant cable with high performance | |
| CN203930159U (en) | A kind of ceramic fiber flame-retardant layer-stranding cable | |
| CN204087886U (en) | A kind of low smoke, zero halogen fire-resistant copper cover aluminum composite conductor rat-and-ant proof cable | |
| CN202305923U (en) | Central tube type flame-retardant and fire-resistant optical cable for mining | |
| CN204613467U (en) | Fire-retardant cable | |
| CN205177448U (en) | High temperature resistant silicon rubber fiber insulation sleeve pipe | |
| CN208400537U (en) | Environment-friendly type complex function flexible fireproof multi-core cable | |
| CN208173287U (en) | A kind of low smoke and zero halogen high-temperature cable | |
| WO2020073761A1 (en) | Fireproof optical fiber cable | |
| CN203931613U (en) | A kind of LSOH anti-flaming category-A fire safe type optical fiber composite low-voltage power cable | |
| CN204695823U (en) | The light-duty fire-resistant low-smoke non-halogen flame-retardant shipboard cable of aluminium alloy conductor | |
| CN208752274U (en) | A kind of flame-proof cable | |
| CN211603631U (en) | High-strength fireproof non-metal reinforced double-core circular optical cable | |
| CN204288880U (en) | A kind of flexible mineral matter fireproof cable | |
| CN204065487U (en) | A kind of lightning protection flame-retardant optical cable | |
| CN105679446A (en) | Aluminium alloy cable with automatic temperature measurement function | |
| CN203930158U (en) | A kind of high-performance refractory flame-proof cable | |
| CN208459657U (en) | A kind of flame-proof cable | |
| CN208368229U (en) | A kind of armored cable | |
| CN202058490U (en) | Novel aviation cable | |
| CN206671617U (en) | A kind of high-grade flame-proof cable | |
| CN214671947U (en) | Low-smoke halogen-free cable | |
| CN210467402U (en) | High-performance fire-resistant cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20160410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |