CN208093245U - A kind of twin-core fire resisting photovoltaic cable - Google Patents
A kind of twin-core fire resisting photovoltaic cable Download PDFInfo
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- CN208093245U CN208093245U CN201820664028.9U CN201820664028U CN208093245U CN 208093245 U CN208093245 U CN 208093245U CN 201820664028 U CN201820664028 U CN 201820664028U CN 208093245 U CN208093245 U CN 208093245U
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Abstract
The utility model discloses a kind of twin-core fire resisting photovoltaic cable, which includes outermost restrictive coating and the two-core cable that is set to inside the restrictive coating, and the restrictive coating is inside, is successively：First flame-retardant layer, the first fire-retardant cooling tube layer, shielded layer, mica wrapping tape layer, the first insulating layer are filled with bast fibre spinning cloth harness between first insulating layer and two-core cable；The two-core cable is successively from outside to inside：Second flame-retardant layer, the second fire-retardant cooling tube layer, second insulating layer, optical cable core.The utility model twin-core fire resisting photovoltaic cable is provided with multiple tracks flame retardant coating, first is the first flame-retardant layer, the second layer is the first fire-retardant cooling tube layer, third layer is set to the second flame-retardant layer of two-core cable outer layer, 4th layer is the second fire-retardant cooling tube layer, four layers of fire resisting setting can effectively prevent cable that fire incident occurs, safer using the cable of the utility model.
Description
Technical field
The utility model is related to cables, particularly relate to a kind of twin-core fire resisting photovoltaic cable.
Background technology
With the fast development of Chinese economy, the fields such as the subway in China, nuclear power station, optoelectronic communication are with unprecedented
Speed develops, and electric dosage also increases rapidly therewith, and all kinds of big power stations also come into being, and the performance of power transmission cable also connects
By unprecedented test.Field, especially nuclear power field are conducted for the electric energy of high pressure, conducting wire can produce during the work time
Raw a large amount of heat simultaneously causes cable to heat up, and it is on fire that cable heating can directly result in cable, once hair property fire behavior can give people
Life and property cause major safety risks.
Utility model content
For deficiency in the prior art, the technical problem to be solved by the present invention is to provide a kind of twin-core fire resistings
Photovoltaic cable.
In order to solve the above technical problems, the utility model is realized by following scheme：A kind of twin-core fire resisting photovoltaic cable,
The cable includes outermost restrictive coating and the two-core cable that is set to inside the restrictive coating, and the restrictive coating is inside, successively
It is：First flame-retardant layer, the first fire-retardant cooling tube layer, shielded layer, mica wrapping tape layer, the first insulating layer, first insulation
Bast fibre spinning cloth harness is filled between layer and two-core cable；
The two-core cable is successively from outside to inside：Second flame-retardant layer, the second fire-retardant cooling tube layer, the second insulation
Layer, optical cable core.
Further, the first flame-retardant layer is low smoke halogen-free flame-retardant polyolefin layer.
Further, the second flame-retardant layer is low smoke halogen-free flame-retardant polyolefin layer.
Further, the described first fire-retardant cooling tube layer by several tube bodies on the axial direction of cable, surround the screen
It covers a layer outer ring and is put into ring array shape, liquid nitrogen is filled in tube body.
Further, the described second fire-retardant cooling tube layer by several tube bodies on the axial direction of cable, around described the
Two insulating layer outer rings are put into ring array shape, and liquid nitrogen is filled in tube body.
Further, the shielded layer reticulates structure by proof copper-wire braided, and the mesh of the reticular structure is diamond hole, circle
Hole, tri-angle-holed, square hole one kind.
Further, foil is plated in the copper wire outer surface of the shielded layer, and it is 0.1-1 μm to plate the layers of foil thickness after foil.
Further, the restrictive coating, the first insulating layer, second insulating layer are modified fluoroplastic layer.
Further, the mica wrapping tape layer wraps up first insulating layer in the form of longitudinal wrap.
Compared with the existing technology, the utility model has the beneficial effects that：The utility model twin-core fire resisting photovoltaic cable is arranged
There is multiple tracks flame retardant coating, first is the first flame-retardant layer, and the second layer is the first fire-retardant cooling tube layer, and third layer is set to twin-core
Second flame-retardant layer of cable outer layer, the 4th layer is the second fire-retardant cooling tube layer, and four layers of fire resisting setting can be prevented effectively
Fire incident occurs for cable, safer using the cable of the utility model.
Description of the drawings
Fig. 1 is the utility model twin-core fire-resisting cable structural schematic diagram；
Fig. 2 is the structural schematic diagram of the utility model two-core cable.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
Attached drawing 1-2 is please referred to, a kind of twin-core fire resisting photovoltaic cable of the utility model, which includes outermost sheath
Layer 1 and the two-core cable 7 being set to inside the restrictive coating 1, it is characterised in that：The restrictive coating 1 is inside, is successively：First
The 8, first fire-retardant cooling tube layer 2 of flame-retardant layer, shielded layer 3, mica wrapping tape layer 4, the first insulating layer 5, first insulating layer 5
Bast fibre spinning cloth harness 6 is filled between two-core cable 7；
The two-core cable 7 is successively from outside to inside：Second the 71, second fire-retardant cooling tube layer 72, second of flame-retardant layer
Insulating layer 73, optical cable core 74.
A kind of preferred embodiment of the present embodiment：The first flame-retardant layer 8, the second flame-retardant layer 71 be low cigarette without
Halogen fire retardant polyolefin layer, low smoke halogen-free flame-retardant polyolefin layer prepare as follows：
(1) it presses following components and weight content prepares raw material, 110-2-B methyl vinyl silicone rubbers：20 parts；Di-t-butyl
Peroxide：0.2 part；Fume colloidal silica：5 parts；Titanium dioxide：1 part；Diphenyl silanediol：0.4 part；Hydroxy silicon oil：2 parts；It can
Porcelain SiClx rubber special low temperature glass powder：4 parts；Di-iron trioxide：0.5 part；
(2) first by 110-2-B methyl vinyl silicone rubbers, fume colloidal silica, titanium dioxide, di-iron trioxide open
It carries out low temperature on rubber mixing machine to be kneaded until uniformly, first packet preliminary roller when mixing, and then the packet back roller in 10 seconds, front and back roller speed ratio are
1.1: 1, wherein preceding roll temperature is 30 DEG C, rear roll temperature is 20 DEG C, and front and back roll spacing is 5mm；Then lead into opening rubber mixing machine
It is 43 DEG C that cooling water, which keeps roller temperature, sequentially adds diphenyl silanediol, hydroxy silicon oil and can porcelain SiClx rubber special low temperature glass
Powder continues to be kneaded 10min, finally gradually adds di-tert-butyl peroxide in sizing material, continues to be kneaded 3 minutes, then make a call to 5 three
Angle is wrapped or clot, thin logical bottom sheet, will be kneaded the sizing material for finishing bottom sheet and parks at room temperature 72 hours, squeezes before rubber in open refining glue
Back mixing is carried out on machine, initial roll spacing is 3mm, then 0.3mm is tapered into 2 minutes, after sizing material surface is smooth
Discharging slice is spare.
A kind of preferred embodiment of the present embodiment：The first fire-retardant cooling tube layer 2 is by several tube bodies in the axial direction side of cable
Upwards, it is put into ring array shape around 3 outer ring of the shielded layer, liquid nitrogen is filled in tube body.
A kind of preferred embodiment of the present embodiment：The second fire-retardant cooling tube layer 72 is by several tube bodies in the axial direction side of cable
Upwards, it is put into ring array shape around 73 outer ring of the second insulating layer, liquid nitrogen is filled in tube body.
A kind of preferred embodiment of the present embodiment：The shielded layer 3 reticulates structure by proof copper-wire braided, the net of the reticular structure
Hole is diamond hole, round hole, tri-angle-holed, square hole one kind.
A kind of preferred embodiment of the present embodiment：Foil is plated in the copper wire outer surface of the shielded layer 3, plates the layers of foil thickness after foil and is
0.1-1μm。
A kind of preferred embodiment of the present embodiment：The restrictive coating 1, the first insulating layer 5, second insulating layer 73 are modified fluorine
Plastic layer.Material used in the modification fluoroplastic layer includes the component of following parts by weight：60~80 parts of polytetrafluoroethylene (PTFE), anti-wear agent
10~20 parts, 5~10 parts of fire retardant, 7~16 parts of plasticizer, 5~9 parts of filler, 1~3 part of antioxidant, paraffin oil 1~3
Part, 0.1~0.2 part of protection against rodents masterbatch, 0.1~0.2 part of termite-proof masterbatch is processed or is insulated by traditional sheath according to these components
It is prepared by the mode of layer processing.Wherein, 5~10 parts of fire retardant is by 2~4 parts of magnesium hydroxide, 3~6 parts of preparations of trioctyl phosphate.
A kind of preferred embodiment of the present embodiment：The mica wrapping tape layer 4 wraps up first insulation in the form of longitudinal wrap
Layer 5.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the patent model of the utility model
Enclose, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or directly or
It connects and is used in other relevant technical fields, be equally included in the patent within the scope of the utility model.
Claims (9)
1. a kind of twin-core fire resisting photovoltaic cable, which includes outermost restrictive coating (1) and is set in the restrictive coating (1)
The two-core cable (7) in portion, it is characterised in that：The restrictive coating (1) inwardly, is successively：First flame-retardant layer (8), the first resistance
Combustion cooling tube layer (2), shielded layer (3), mica wrapping tape layer (4), the first insulating layer (5), first insulating layer (5) and twin-core electricity
Bast fibre spinning cloth harness (6) is filled between cable (7)；
The two-core cable (7) is successively from outside to inside：Second flame-retardant layer (71), the second fire-retardant cooling tube layer (72),
Two insulating layers (73), optical cable core (74).
2. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The first flame-retardant layer
(8) it is low smoke halogen-free flame-retardant polyolefin layer.
3. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The second flame-retardant layer
(71) it is low smoke halogen-free flame-retardant polyolefin layer.
4. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The first fire-retardant cooling tube layer
(2) ring array shape is put by several tube bodies on the axial direction of cable, around the shielded layer (3) outer ring, in tube body
It is filled with liquid nitrogen.
5. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The second fire-retardant cooling tube layer
(72) it is put into ring array shape on the axial direction of cable, around the second insulating layer (73) outer ring by several tube bodies,
Liquid nitrogen is filled in tube body.
6. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The shielded layer (3) is by copper wire
It is woven into reticular structure, the mesh of the reticular structure is diamond hole, round hole, tri-angle-holed, square hole one kind.
7. a kind of twin-core fire resisting photovoltaic cable according to claim 6, it is characterised in that：The copper wire of the shielded layer (3)
Foil is plated in outer surface, and it is 0.1-1 μm to plate the layers of foil thickness after foil.
8. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The restrictive coating (1), first are absolutely
Edge layer (5), second insulating layer (73) are modified fluoroplastic layer.
9. a kind of twin-core fire resisting photovoltaic cable according to claim 1, it is characterised in that：The mica wrapping tape layer (4) is adopted
First insulating layer (5) is wrapped up with the form of longitudinal wrap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664028.9U CN208093245U (en) | 2018-05-04 | 2018-05-04 | A kind of twin-core fire resisting photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664028.9U CN208093245U (en) | 2018-05-04 | 2018-05-04 | A kind of twin-core fire resisting photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208093245U true CN208093245U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820664028.9U Active CN208093245U (en) | 2018-05-04 | 2018-05-04 | A kind of twin-core fire resisting photovoltaic cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185713A (en) * | 2019-07-10 | 2019-08-30 | 贝德科技有限公司 | A kind of Diesel engine pump check shaft coupling |
-
2018
- 2018-05-04 CN CN201820664028.9U patent/CN208093245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185713A (en) * | 2019-07-10 | 2019-08-30 | 贝德科技有限公司 | A kind of Diesel engine pump check shaft coupling |
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