CN209543987U - A kind of halogen-free flameproof fire-resisting cable - Google Patents
A kind of halogen-free flameproof fire-resisting cable Download PDFInfo
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- CN209543987U CN209543987U CN201920160840.2U CN201920160840U CN209543987U CN 209543987 U CN209543987 U CN 209543987U CN 201920160840 U CN201920160840 U CN 201920160840U CN 209543987 U CN209543987 U CN 209543987U
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Abstract
The utility model provides a kind of halogen-free flameproof fire-resisting cable, it is related to field of cable technology, including several conducting wires, insulating layer is successively coated with outside the conducting wire, interior flame-retardant layer, shielded layer, outer fire resistant layer, fire-retardant set and oversheath, the interior flame-retardant layer is made of glass fibre and basalt fibre through knitting device, the outer fire resistant layer includes several axially extending axial grooves along the conducting wire, the axial groove is distributed uniformly and circumferentially in the outside of the shielded layer, the cross-sectional shape of the axial groove is semicircle and forms the first fill area with the shielding interlayer, silica dioxide granule is filled in first fill area.The utility model heat resistance and flame retardant property are good, highly-safe.
Description
Technical field
The utility model relates to field of cable technology, and in particular to a kind of halogen-free flameproof fire-resisting cable.
Background technique
Cable is often by several or several groups of conducting wires form, mutually insulated between every group of conducting wire, and often in one
The heart is twisted into, and entire outside is surrounded by the coating of high-insulation, with China's electric power, the high speed development of communication, for the need of cable
Ask increasing, it is desirable that also higher and higher.Currently, cable is extremely incendive object in the market, when burning, is easy to produce a large amount of
Poisonous and hazardous corrosive gas and dense smoke, second of disaster is caused, so environmental-protecting performance is bad；Because fire resistance is bad,
It is easy open circuit after burning, cannot effectively ensure the security of the lives and property of citizen.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of heat resistance and flame retardant property is good, safety
The high halogen-free flameproof fire-resisting cable of property.
The utility model provides following technical solution:
A kind of halogen-free flameproof fire-resisting cable, including several conducting wires are successively coated with insulating layer, interior fire-retardant outside the conducting wire
Layer, shielded layer, outer fire resistant layer, fire-retardant set and oversheath, the interior flame-retardant layer is by glass fibre and basalt fibre through knitting device
It constitutes, the outer fire resistant layer includes several axially extending axial grooves along the conducting wire, and the axial groove is in the shielded layer
Outside be distributed uniformly and circumferentially, the cross-sectional shape of the axial groove be it is semicircle and with shielding interlayer formation the
One fill area, first fill area is interior to be filled with silica dioxide granule.
Preferably, the fire-retardant set is layer structure, including magnesium hydroxide layer, glass fabric and the hydrogen-oxygen being successively arranged
Change aluminium layer, the magnesium hydroxide layer is set to inside the oversheath, and the aluminum hydroxide layer is set to the outside of the outer fire resistant layer.
Preferably, the inside of the insulating layer is equipped with the interlayer being distributed uniformly and circumferentially, and the interlayer is in arc-shaped,
The interlayer and the insulation interlayer form the second fill area, are filled with talcum powder in second fill area.
Preferably, the surface of the oversheath is coated with one layer of refractory coating.
Preferably, the insulating layer is Ceramic silicon rubber layer.
Preferably, the shielded layer is lamina reticularis made of being woven as tin-coated copper.
Preferably, the oversheath is low smoke halogen-free flame-retardant polyolefin layer.
The beneficial effects of the utility model are: interior flame-retardant layer is made of glass fibre and basalt fibre through knitting device, glass
Glass fiber and basalt fibre all have good corrosion resistance and heatproof combustion resistance, can protect inner lead and insulating layer；Outside
Flame-retardant layer includes that several cross-sectional shapes are semicircular axial groove, has buffer function, can alleviate external impacts, in protection
Portion's structure；Axial groove and shielding interlayer form the first fill area, and the silica dioxide granule filled in the first fill area has good
Flame retardant property, if fire source is burnt to outer fire resistant layer, silica dioxide granule is leaked out, and is adhered to the surface of shielded layer, can be effective
Prevent fire spreading.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention and illustrates.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the layer structure schematic diagram of fire-retardant set.
In the figure, it is marked as 1, conducting wire；2, interlayer；3, the second fill area；4, insulating layer；5, interior flame-retardant layer；6, shielded layer；7,
Outer fire resistant layer；71, axial groove；72, the first fill area；8, fire-retardant set；81, magnesium hydroxide layer；82, glass fabric；83, hydrogen-oxygen
Change aluminium layer；9, oversheath；10, refractory coating.
Specific embodiment
As depicted in figs. 1 and 2, a kind of halogen-free flameproof fire-resisting cable, including several conducting wires 1 are successively coated with outside conducting wire 1
Insulating layer 4, interior flame-retardant layer 5, shielded layer 6, outer fire resistant layer 7, fire-retardant set 8 and oversheath 9.
Insulating layer 4 is Ceramic silicon rubber layer, has good anti-flammability, fire resistance and insulation effect.Insulating layer 4
Inside is equipped with the interlayer 2 being distributed uniformly and circumferentially, and interlayer 2 is in arc-shaped, and the second filling is formed between interlayer 2 and insulating layer 4
Area 3, the second fill area 3 are interior filled with talcum powder.The presence of interlayer 2 has buffer function, can reduce external force rushing to conducting wire 1
It hits, the talcum powder filled in the second fill area 3 has flame retardant property.
Interior flame-retardant layer 5 is made of glass fibre and basalt fibre through knitting device, and glass fibre and basalt fibre have
There are good corrosion resistance and heatproof combustion resistance, inner lead 1 and insulating layer 4 can be protected.
Shielded layer 6 is lamina reticularis made of being woven as tin-coated copper, and shield effectiveness is good, and heat resistance is strong.
Outer fire resistant layer 7 includes several axially extending axial grooves 71 along conducting wire 1, and axial groove 71 is in the outside of shielded layer 6
It being distributed uniformly and circumferentially, the cross-sectional shape of axial groove 71 forms for semicircle and between shielded layer 6 first fill area 72,
Silica dioxide granule is filled in first fill area 72, the material of axial groove 71 is low smoke halogen-free flame-retardant polyolefin.Axial groove 71
With buffer function, external impacts can be alleviated, protect internal structure；The silica dioxide granule tool filled in first fill area 72
There is good flame retardant property, if fire source is burnt to outer fire resistant layer 7, silica dioxide granule is leaked out, and is adhered to the surface of shielded layer 6, energy
Enough effective prevention fire spreadings.
Fire-retardant set 8 is layer structure, including the magnesium hydroxide layer 81, glass fabric 82 and aluminum hydroxide layer being successively arranged
83, magnesium hydroxide layer 81 is set to inside oversheath 9, and aluminum hydroxide layer 83 is set to the outside of outer fire resistant layer 7.When fire source is burnt to fire-retardant
When covering 8,83 collective effect of magnesium hydroxide layer 81 and aluminum hydroxide layer, the heat that absorbing cable burning generates reduces system temperature,
Reach flame retardant effect, glass fabric 82 itself has flame-retardant performance.
Oversheath 9 is low smoke halogen-free flame-retardant polyolefin layer, has low cigarette, Halogen, flame retardant property, and the surface of oversheath 9 is sprayed
It is coated with one layer of refractory coating 10, can further improve the flame-retardant of cable.
The foregoing is merely the preferred application cases of the utility model, are not intended to limit the utility model, although reference
The utility model is described in detail in previous embodiment, for those skilled in the art, still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (7)
1. a kind of halogen-free flameproof fire-resisting cable, which is characterized in that including several conducting wires, insulation is successively coated with outside the conducting wire
Layer, interior flame-retardant layer, shielded layer, outer fire resistant layer, fire-retardant set and oversheath, the interior flame-retardant layer is by glass fibre and basalt fibre
It is constituted through knitting device, the outer fire resistant layer includes several axially extending axial grooves along the conducting wire, and the axial groove is in institute
The outside for stating shielded layer is distributed uniformly and circumferentially, the cross-sectional shape of the axial groove be it is semicircle and with the shielded layer
Between form the first fill area, silica dioxide granule is filled in first fill area.
2. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the fire-retardant set is stratiform knot
Structure, including magnesium hydroxide layer, glass fabric and the aluminum hydroxide layer being successively arranged, the magnesium hydroxide layer is set to the outer shield
Set is internal, and the aluminum hydroxide layer is set to the outside of the outer fire resistant layer.
3. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the inside of the insulating layer is equipped with
The interlayer being distributed uniformly and circumferentially, the interlayer are in arc-shaped, and the interlayer and the insulation interlayer form the second filling
Area, second fill area is interior to be filled with talcum powder.
4. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the surface of the oversheath sprays
There is one layer of refractory coating.
5. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the insulating layer is ceramic SiClx
Rubber layer.
6. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the shielded layer is by tin-coated copper
Lamina reticularis made of braiding.
7. a kind of halogen-free flameproof fire-resisting cable according to claim 1, which is characterized in that the oversheath is low smoke and zero halogen
Fire retardant polyolefin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160840.2U CN209543987U (en) | 2019-01-30 | 2019-01-30 | A kind of halogen-free flameproof fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920160840.2U CN209543987U (en) | 2019-01-30 | 2019-01-30 | A kind of halogen-free flameproof fire-resisting cable |
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| CN209543987U true CN209543987U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920160840.2U Active CN209543987U (en) | 2019-01-30 | 2019-01-30 | A kind of halogen-free flameproof fire-resisting cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112512145A (en) * | 2020-12-08 | 2021-03-16 | 芜湖市恒鑫电缆有限责任公司 | 24V self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
-
2019
- 2019-01-30 CN CN201920160840.2U patent/CN209543987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112512145A (en) * | 2020-12-08 | 2021-03-16 | 芜湖市恒鑫电缆有限责任公司 | 24V self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
| CN112512145B (en) * | 2020-12-08 | 2022-09-16 | 山东鲁城电缆有限公司 | 24-volt self-temperature-limiting flame-retardant temperature-control heating cable special for automobile |
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