CN207833983U - Safety optical luff cable - Google Patents
Safety optical luff cable Download PDFInfo
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- CN207833983U CN207833983U CN201820016544.0U CN201820016544U CN207833983U CN 207833983 U CN207833983 U CN 207833983U CN 201820016544 U CN201820016544 U CN 201820016544U CN 207833983 U CN207833983 U CN 207833983U
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- sub
- insulating layer
- restrictive coating
- cable
- safety optical
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Abstract
The utility model provides a kind of safety optical luff cable, including：The outer surface of sub-line core, sub-line core extrudes a seamless aluminum metal pipe.Sub-line core includes conductor thread core, be wrapped in conductor thread core outside insulating layer, be wrapped in insulating layer outside restrictive coating, insulating layer is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, and restrictive coating is made of insulating materials.The thickness of insulating layer is 1.04mm 1.59mm；The thickness of restrictive coating is 0.85mm 1.26mm.The safety optical luff cable of the utility model has the characteristics that anti-flammability is strong, anti-uv-ray is strong, aging is slow, good waterproof performance, rat-and-ant proof, advantages of good shielding performance, overload protection are strong, long lifespan, can meet the needs of indoor, field laying photovoltaic system.
Description
Technical field
The utility model is related to field of cable technology, more particularly to a kind of safety optical luff cable.
Background technology
In the prior art common photovoltaic cable generally use low-smoke halogen-free polyolefin as insulation, sheath material be low cigarette without
Halogen polyolefin.This photovoltaic cable is due to its design feature, although insulation, sheath can become crosslinking knot by radiation treatment
Structure, but such photovoltaic cable poor fire, resistance to ag(e)ing are poor, UV resistant performance is poor, the intrinsic problem of rat-and-ant proof poor performance
It is difficult to change.
When laying indoors, fire-retardant problem under cable bunchy state laying state is very prominent, by standard GB/T/
T 18380(《The combustion experiment of cable and optical cable under flame condition》) the fire-retardant A classes of bunchy it is extremely difficult, to pass through fire-retardant A
Class generally requires to add a large amount of inorganic anti-flaming materials (hydroxide of surface activation process in polyolefin insulation, sheath material
Magnesium, aluminium hydroxide etc.) so that the loss of mechanical properties of polyolefine material is very big, and electrical property also has substantial degradation.
Newest implementation standard GB/T 31247 (《Cable and optical cable classification system for fire performance》), it is not single to examine prolonging for cable
Performance is fired, cable heat release total amount and rate of heat release under combustion state are also examined, using polyolefin insulation, the photovoltaic electric of sheath
Quickly due to polyolefine material combustion heat release, thermal discharge is very big for cable, is had no idea at all through burning behavior class B1Grade examination,
Even burning behavior class B2All it can't pass.
On the other hand, the photovoltaic cable of field laying wants much lower for fire-retardant requirement, but under the laying state of field
Sunshine is strong, and rainwater is also more, while also having very serious mouse ant disaster.There is no the photovoltaic cable ageing environment of any protection
Very severe, service life substantially reduce；The case where mouse ant stings bad cable is also very universal.
Utility model content
The technical problems to be solved in the utility model is poor fire, the resistance to ag(e)ing of the cable in order to overcome the prior art
Difference, UV resistant performance be poor, defect of rat-and-ant proof poor performance, and providing a kind of anti-flammability by force (can be by the burning of GB 31247
Performance rate B1Experiment, the fire-retardant A classes of bunchy of GB/T18380 can be passed through), anti-uv-ray is strong, aging is slow, water proofing property
It gets well, rat-and-ant proof, advantages of good shielding performance, overload protection are strong, long lifespan safety optical luff cable.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of safety optical luff cable, including：The outer surface of sub-line core, sub-line core extrudes a seamless aluminum metal pipe；
Sub-line core includes conductor thread core, be wrapped in conductor thread core outside insulating layer, be wrapped in the outside of insulating layer
Restrictive coating, insulating layer are made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, and restrictive coating is made of insulating materials；
The thickness of insulating layer is 1.04mm-1.59mm；
The thickness of restrictive coating is 0.85mm-1.26mm.
Preferably, the thickness of seamless aluminum metal pipe is 0.5mm-1.1mm.
Preferably, restrictive coating is made of low-smoke halogen-free polyolefin material.
Preferably, restrictive coating is wrapped in the metal sheath layer of the outside of insulating layer and is wrapped in outside metal sheath layer
Insulating jacket layer.
Preferably, the quantity of sub-line core is more, more root cores are twisted as a stranding, and the outside of stranding extrudes seamless aluminium
Metal tube, the twisting pitch of sub-line core are identical as the seamless pitch of aluminum metal pipe.
Preferably, being provided with insulation filler between seamless aluminum metal pipe and stranding.
The positive effect of the utility model is：The safety optical luff cable of the utility model has anti-flammability strong
(the burning behavior class B of GB 31247 can be passed through1Experiment, the fire-retardant A classes of bunchy of GB/T18380 can be passed through), uvioresistant
The features such as line ability is strong, aging is slow, good waterproof performance, rat-and-ant proof, advantages of good shielding performance, overload protection are strong, long lifespan, can meet room
The needs of interior, field laying photovoltaic system.
Description of the drawings
Fig. 1 is the cross section structure schematic diagram of the safety optical luff cable of the embodiments of the present invention 1.
Fig. 2 is the cross section structure schematic diagram of the safety optical luff cable of the embodiments of the present invention 2.
Fig. 3 is the cross section structure schematic diagram of the safety optical luff cable of the embodiments of the present invention 3.
Specific implementation mode
Preferred embodiment is set forth below, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Embodiment 1
The safety optical luff cable of the present embodiment, as shown in Figure 1, comprising sub-line core, the outer surface of sub-line core extrudes a nothing
Stitch aluminum metal pipe 4.Sub-line core include conductor thread core 1, be wrapped in conductor thread core 1 outside insulating layer 2, be wrapped in insulating layer 2
Outside restrictive coating 3.Insulating layer 2 is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, the low cigarette of the cross-linking radiation without
Halogen flame retardant polyolefine material is commercially available.Restrictive coating 3 is made of insulating materials, which is commercially available.Insulating layer
Thickness be 1.04mm-1.59mm.The thickness of restrictive coating is 0.85mm-1.26mm.
Because insulating layer 2 is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, irradiated crosslinking low-smoke and halogen-free resistance
Firing polyolefine material has good insulation performance, meanwhile, there is good high-heat performance, heat resisting temperature is up to 125 DEG C.
Restrictive coating 3 forms protection to internal insulating layer 2, avoids during bending, seamless aluminum metal pipe 4 damages absolutely
Edge layer 2, leads to cable leakage.
Seamless aluminum metal pipe 4 forms good safeguard function in the Exterior cable so that the safety optical luff cable has
Anti-flammability (can pass through the burning behavior class B of GB 31247 by force1Experiment can pass through the fire-retardant A of bunchy of GB/T18380
Class), the spies such as anti-uv-ray is strong, aging is slow, good waterproof performance, rat-and-ant proof, advantages of good shielding performance, overload protection are strong, long lifespan
Point can meet the needs of indoor, field laying photovoltaic system.Seamless aluminum metal pipe 4 has compared to modes such as steel strip windings
The advantages such as good waterproof performance, at low cost.
In order to obtain good protection effect, and cost factor is taken into account, the thickness of seamless aluminum metal pipe 4 is 0.5mm-
1.1mm。
Further, restrictive coating 3 is made of low-smoke halogen-free polyolefin material, the low-smoke halogen-free polyolefin material be it is commercially available can
.The low-smoke halogen-free polyolefin material has good flame retardant property and anti-ultraviolet property.
Embodiment 2
The structure substantially phase of the structure of the safety optical luff cable of the present embodiment and the safety optical luff cable of embodiment 1
Together, the difference is that：As shown in Fig. 2, the restrictive coating 3 of the safety optical luff cable of the present embodiment is wrapped in insulating layer
The metal sheath layer 301 of 2 outside and the insulating jacket layer 302 being wrapped in outside metal sheath layer 301.The structure further carries
The high anti-flammability of the safety optical luff cable, anti-uv-ray, service life greatly prolong.
Embodiment 3
The structure substantially phase of the structure of the safety optical luff cable of the present embodiment and the safety optical luff cable of embodiment 2
Together, the difference is that：As shown in figure 3, the quantity of the sub-line core of the safety optical luff cable of the present embodiment is more, more
Sub-line core is twisted as a stranding, and the outside of stranding extrudes seamless aluminum metal pipe 4, the twisting pitch of sub-line core and seamless aluminum metal pipe
4 pitch is identical.
Further, it is provided with insulation filler 5 between seamless aluminum metal pipe 4 and stranding.Insulation filler 5 is filled seamless
Gap between aluminum metal pipe 4 and stranding, it is ensured that stranding is relatively fixed with seamless aluminum metal pipe 4, avoids stranding seamless
The internal slide of aluminum metal pipe 4.Also, insulation filler 5 forms seamless aluminum metal pipe 4 from inside and supports, and is reduced or avoided
Seamless aluminum metal pipe 4 is deformed because of extruding, to influence service life；Insulation filler 5 also forms stranding and protects, and makes stranding
From squeezing, prolong the service life.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the scope of protection of the utility model.
Claims (6)
1. a kind of safety optical luff cable, which is characterized in that it includes：The outer surface of sub-line core, the sub-line core extrudes a nothing
Stitch aluminum metal pipe；
The sub-line core include conductor thread core, be wrapped in the conductor thread core outside insulating layer, be wrapped in the insulating layer
Outside restrictive coating, the insulating layer is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, and the restrictive coating is by exhausted
Edge material is made；
The thickness of the insulating layer is 1.04mm-1.59mm；
The thickness of the restrictive coating is 0.85mm-1.26mm.
2. safety optical luff cable as described in claim 1, which is characterized in that the thickness of the seamless aluminum metal pipe is
0.5mm-1.1mm。
3. safety optical luff cable as described in claim 1, which is characterized in that the restrictive coating is low-smoke halogen-free polyolefin material
Material is made.
4. safety optical luff cable as described in claim 1, which is characterized in that the restrictive coating is wrapped in the insulation
The metal sheath layer of the outside of layer and the insulating jacket layer being wrapped in outside the metal sheath layer.
5. the safety optical luff cable as described in any one of claim 1-4, which is characterized in that the quantity of the sub-line core
It it is more, the more sub-line cores are twisted as a stranding, and the outside of the stranding extrudes the seamless aluminum metal pipe, the sub-line
The twisting pitch of core is identical as the seamless pitch of aluminum metal pipe.
6. safety optical luff cable as claimed in claim 5, which is characterized in that the seamless aluminum metal pipe and the stranding it
Between be provided with insulation filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016544.0U CN207833983U (en) | 2018-01-04 | 2018-01-04 | Safety optical luff cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820016544.0U CN207833983U (en) | 2018-01-04 | 2018-01-04 | Safety optical luff cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833983U true CN207833983U (en) | 2018-09-07 |
Family
ID=63391701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820016544.0U Active CN207833983U (en) | 2018-01-04 | 2018-01-04 | Safety optical luff cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833983U (en) |
-
2018
- 2018-01-04 CN CN201820016544.0U patent/CN207833983U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210426 Address after: 233000 Anhui province Bengbu City Longxing Road No. 555 Patentee after: Gaoqiao Fire Protection Technology Co.,Ltd. Address before: 201605, No. 1, 212 military road, new town, Shanghai, Songjiang District Patentee before: SHANGHAI GAOQIAO CABLE FACTORY Co.,Ltd. |