CN206672685U - It is a kind of can be with the mesohigh flexible fire-proof cable of vertical run - Google Patents
It is a kind of can be with the mesohigh flexible fire-proof cable of vertical run Download PDFInfo
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- CN206672685U CN206672685U CN201720397913.0U CN201720397913U CN206672685U CN 206672685 U CN206672685 U CN 206672685U CN 201720397913 U CN201720397913 U CN 201720397913U CN 206672685 U CN206672685 U CN 206672685U
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- cable
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- steel wire
- cable core
- vertical run
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Abstract
The utility model discloses it is a kind of can be with the mesohigh flexible fire-proof cable of vertical run,The cable includes cable core and oversheath,Steel wire tension circular layer is provided between oversheath and cable core,The steel wire tension circular layer is made up of the fire insulation filler be close to the cable core excircle more mild steel wires equidistantly arranged and be filled between steel wire,More mild steel wires are twist attached to cable core excircle,The cable core is by more insulated wire cores twisted together,The radiating filler being filled between insulated wire cores,And the glass fabric lapping layer for wrapping up insulated wire cores and radiating filler from outside is formed,The radiating filler is the pureed radiating filler being mixed into by magnesia and waterglass,The fire insulation filler is the pureed fire insulation filler being mixed into by magnesium hydroxide and waterglass,The thermal diffusivity of the cable is good,Tensile capacity is strong,Still can be with normal power supply certain time during the cable experience fire of vertical run state,Cable it is flexible,Bending radius is equal with common medium and high voltage cable.
Description
Technical field
The utility model is related to a kind of middle-high voltage fireproof cable, it is especially a kind of can be with the anti-thermoelectricity of the mesohigh of vertical run
Cable.
Background technology
With the quickening of Chinese society economic construction paces, fireproof cable be widely used in skyscraper, mine,
The important places such as iron, nuclear power station, power plant, tunnel.Due to the particularity of middle-high voltage power cable structure, current fireproof cable
Voltage class all in 1kV and following, therefore, needs the occasion of mesohigh power transmission and distribution because not having the anti-thermoelectricity of mesohigh at some
Cable, its security performance cannot ensure.Middle-high voltage power cable of the prior art is mostly armored cable, the cable of this structure
Middle armouring, which meets fire, to be softened, very big plus the weight of cable in itself, easily cause cable and slide, be broken, cause to power off, Wu Fabao
Hinder the time of emergency staffs in fire, therefore, this armored cable does not allow vertical run, it is difficult to satisfaction such as skyscraper,
To the requirement of middle-high voltage fireproof cable in mine.
Utility model content
Utility model technical problems to be solved are：There is provided it is a kind of can with the mesohigh flexible fire-proof cable of vertical run,
The thermal diffusivity of the cable is good, tensile capacity is strong, and the cable of vertical run state still can be with the timing of normal power supply one when meeting with fire
Between, cable it is flexible, bending radius is equal with common medium and high voltage cable.
The technical solution adopted for solving the technical problem：It is a kind of to be wrapped with the mesohigh flexible fire-proof cable of vertical run
Cable core and oversheath are included, steel wire tension circular layer is provided between oversheath and cable core, the steel wire tension circular layer is by being close to cable core
More mild steel wires that excircle equidistantly arranges and the fire insulation filler being filled between steel wire are formed.
As improvement of the present utility model：More mild steel wires are twist attached to cable core excircle.
As further improvement of the utility model：The cable core by more insulated wire cores twisted together, be filled in
Radiating filler between insulated wire cores and the glass fabric lapping layer structure for wrapping up insulated wire cores and radiating filler from outside
Into.
Further improved as of the present utility model：The insulated wire cores include the single line bundle strand by more same diameters
The conductor formed, conductor shield, insulating barrier, insulation screen, copper strip shielding are sequentially provided with from inside to outside in the outside of conductor
Layer.
Further improved as of the present utility model：The radiating filler is the mud being mixed into by magnesia and waterglass
Shape radiating filler.
As another improvement of the present utility model：The fire insulation filler is the mud being mixed into by magnesium hydroxide and waterglass
Shape fire insulation filler.
As preferred plan of the present utility model：Spacing between adjacent mild steel wire is equal to the diameter of mild steel wire.
Beneficial effect：It is of the present utility model to be prevented with the mesohigh flexible fire-proof cable of vertical run as a result of described
Thermoelectricity cable includes cable core and oversheath, is provided with steel wire tension circular layer between oversheath and cable core, the steel wire tension circular layer by
It is special to be close to the technology that the cable core excircle more mild steel wires equidistantly arranged and the fire insulation filler being filled between steel wire are formed
Sign, increase the tensile capacity of cable by setting steel wire tension circular layer, and effectively protect cable core, make mesohigh of the present utility model
Flexible fire-proof cable can meet vertical run requirement, by filling fire insulation filler between steel wire, prevent steel wire from being sent out in fire
Softening fracture, allows cable of the present utility model to meet the fire protection requirement of vertical run, overcomes of the prior art when raw
Armouring medium and high voltage cable can not vertical run, the defects of armorless cable flameproof effect is bad, cable of the present utility model hanging down
Still can be with normal power supply certain time during experience fire under straight any intermediate position, the cable has thermal diffusivity is good, tensile capacity is strong etc.
Advantage, cable it is flexible, its bending radius is equal with common medium and high voltage cable.As a result of more mild steel wires helically
Shape is attached to the technical characteristic of cable core excircle, steel wire during cable bend also can be closely attached to cable core excircle
On, prevent steel wire from coming off, on the other hand reduce steel wire to the flexible influence of cable, make cable of the present utility model flexible more preferable.
As a result of the cable core by more insulated wire cores twisted together, the radiating filler being filled between insulated wire cores and
The technical characteristic that the glass fabric lapping layer that insulated wire cores and radiating filler are wrapped up from outside is formed, by insulated wire cores
Between filling radiating filler, play fire prevention and thermolysis, improve current-carrying capacity of cable.Include as a result of the insulated wire cores
The conductor formed by the single line bundle strand of more same diameters, be sequentially provided with from inside to outside in the outside of conductor conductor shield, absolutely
Edge layer, insulation screen, the technical characteristic of copper strip shielding layer, make the conductive effect of conductor and insulation effect more preferable, cable work
More stable, use is safer.It is that the pureed radiating being mixed into by magnesia with waterglass is filled out as a result of the radiating filler
The technical characteristic of material, the radiating effect of filler is more preferable, and the heat-resisting ability of cable is stronger.It is as a result of the fire insulation filler
The technical characteristic for the pureed fire insulation filler being mixed into by magnesium hydroxide and waterglass, magnesium hydroxide belong to thermal insulation fire proofing material,
During generation fire, fire insulation filler temperature reaches more than 350 DEG C and just starts scleroma into the hard shell body of ceramic-like, is effectively protected steel
Silk, prevents steel wire from softening fracture at high temperature, magnesia is the good fire proofing material of thermal diffusivity again, and magnesia is mixed with waterglass
Into the pureed fire insulation filler combination that is mixed into of pureed radiating filler, magnesium hydroxide and waterglass use, make of the present utility model
Normal transmission can be at least kept under 1350 DEG C of hot environments with the mesohigh flexible fire-proof cable of vertical run 3 hours.
Brief description of the drawings
It can be made further with the mesohigh flexible fire-proof cable of vertical run to of the present utility model below in conjunction with the accompanying drawings
Describe in detail.
Fig. 1 be it is of the present utility model can be with the mesohigh flexible fire-proof cable cross-sectional structure schematic diagram of vertical run.
Embodiment
As shown in figure 1, of the present utility model can be with the mesohigh flexible fire-proof cable of vertical run, including cable core and fire-retardant
PVC oversheaths 1, the cable core by more insulated wire cores twisted together, the radiating filler 5 being filled between insulated wire cores,
And the glass fabric lapping layer 4 for wrapping up insulated wire cores and radiating filler from outside is formed, the radiating filler is by purity
The pureed radiating filler that the waterglass of magnesia and Baume degrees 55be, modulus 2.3M for 95% is mixed into.In oversheath and cable
Steel wire tension circular layer, the more mild steel that the steel wire tension circular layer is equidistantly arranged by being close to cable core excircle are provided between core
Silk 3 and the fire insulation filler 2 being filled between steel wire are formed, and more mild steel wires are twist attached to cable core excircle, adjacent
Spacing between mild steel wire is equal to the diameter of mild steel wire, and the fire insulation filler is by magnesium hydroxide and Baume degrees 55be, mould
The pureed fire insulation filler that number 2.3M waterglass is mixed into.
Every insulated wire cores include the conductor 10 formed by the single line bundle strand of more same diameters, in the outside of conductor by interior
Outwards it is sequentially provided with conductor shield 9, insulating barrier 8, insulation screen 7, copper strip shielding layer 6.
Cable core, can be according to specific requirement Reasonable adjustment in actual production by three insulated wire cores strandings in the utility model
Insulated wire cores number.
It is of the present utility model to be tested after testing with the mesohigh flexible fire-proof cable of vertical run, vertical run state
Cable can at least keep normal transmission 3 hours under 1350 DEG C of hot environments.
Claims (5)
1. it is a kind of can with the mesohigh flexible fire-proof cable of vertical run, including cable core and oversheath, it is characterized in that：In oversheath
It is provided with steel wire tension circular layer between cable core, the steel wire tension circular layer is low by being close to more that cable core excircle equidistantly arranges
Carbon steel wire and the fire insulation filler being filled between steel wire are formed.
2. it is according to claim 1 can with the mesohigh flexible fire-proof cable of vertical run, it is characterized in that：More mild steel
Silk is twist attached to cable core excircle.
3. it is according to claim 1 can with the mesohigh flexible fire-proof cable of vertical run, it is characterized in that：The cable core by
More insulated wire cores twisted together, the radiating filler being filled between insulated wire cores and by insulated wire cores and radiating filler
Formed from the glass fabric lapping layer of outside parcel.
4. it is according to claim 3 can with the mesohigh flexible fire-proof cable of vertical run, it is characterized in that：The insulated wire
Core includes the conductor formed by the single line bundle strand of more same diameters, and conductor shielding is sequentially provided with from inside to outside in the outside of conductor
Layer, insulating barrier, insulation screen, copper strip shielding layer.
5. according to any one of Claims 1-4 can with the mesohigh flexible fire-proof cable of vertical run, it is characterized in that：
Spacing between adjacent mild steel wire is equal to the diameter of mild steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397913.0U CN206672685U (en) | 2017-04-13 | 2017-04-13 | It is a kind of can be with the mesohigh flexible fire-proof cable of vertical run |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720397913.0U CN206672685U (en) | 2017-04-13 | 2017-04-13 | It is a kind of can be with the mesohigh flexible fire-proof cable of vertical run |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206672685U true CN206672685U (en) | 2017-11-24 |
Family
ID=60381437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720397913.0U Active CN206672685U (en) | 2017-04-13 | 2017-04-13 | It is a kind of can be with the mesohigh flexible fire-proof cable of vertical run |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206672685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036665A (en) * | 2018-07-20 | 2018-12-18 | 安徽纵横新能源有限责任公司 | The new-energy automobile of resistance to grain electric wire coatings layer and preparation method thereof |
-
2017
- 2017-04-13 CN CN201720397913.0U patent/CN206672685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036665A (en) * | 2018-07-20 | 2018-12-18 | 安徽纵横新能源有限责任公司 | The new-energy automobile of resistance to grain electric wire coatings layer and preparation method thereof |
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