CN207925164U - Special-shaped conductor BTTZ fireproof cables - Google Patents
Special-shaped conductor BTTZ fireproof cables Download PDFInfo
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- CN207925164U CN207925164U CN201820395292.7U CN201820395292U CN207925164U CN 207925164 U CN207925164 U CN 207925164U CN 201820395292 U CN201820395292 U CN 201820395292U CN 207925164 U CN207925164 U CN 207925164U
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Abstract
The utility model is related to field of cables,Special-shaped conductor BTTZ fireproof cables,Including mica insulation skeleton,Conductor and mica insulation layer,The wherein described mica insulation layer is that mica insulation band winds the tubular body being rolled into,The mica insulation skeleton is made of the mica insulation wall of at least three plate,The mica insulation wall diversion shape structure,And mica insulation wall inner end connects,Outer end is connected to the inner wall of mica insulation layer,So that being divided into the cavity that fan-shaped cross section inside the mica insulation layer,The conductor is arranged in the cavity,The outer layer jacket of the mica insulation layer is equipped with shielded layer,It is filled with magnesium oxide powder in interlayer between shielded layer and mica insulation layer,Magnesia slurry forms magnesia and pours into layer,It is set with the metal armor layer for reinforcing cable protective performance on the outside of the shielded layer successively from the inside to the outside,For external fire-retardant flame-retardant layer,And the sheath for tentatively protecting cable.
Description
Technical field
The utility model is related to field of cables, especially a kind of special-shaped conductor BTTZ fireproof cables.
Background technology
BTTZ is to use mineral (magnesia) as the cable of insulating materials.Usually by copper conductor, mineral insulation, copper sheath structure
At without organic material.With non-ignitable, smokeless, nontoxic and fire resisting characteristic.The preferable fire resistance of BTTZ fireproof cables is mine
One of superior characteristic of object insulated cable, so, people contact itself and fire resistant requirements when selecting mineral insulated cable
Together, also it is accustomed to referred to as " fireproof cable ".
For opposite sex cable generally use mica tape in the prior art as insulating layer, outer layer is set with various functions layers, but this
Kind anisotropic conductor cable insulation ability and protective capacities are insufficient.Such as Chinese patent (application publication number CN 107017040),
A kind of anisotropic cable is disclosed, which there is the ability of fire-proof and water-proof, fire-proof and water-proof to pass through protective metal shell and polyisobutene
Waterproofing membrane is realized, is isolated by ceramic silicon rubber between conductor, and interval fills grease.Such fireproof cable ceramics silicon rubber
Twining package tape is more easily damaged, it is made to lose flameproof effect.
Utility model content
To solve the above problems, the utility model provides a kind of special-shaped conductor BTTZ fireproof cables, which has
Dual fire protecting performance, while insulation effect is excellent between conductor.
To achieve the above object, the technical solution adopted in the utility model is：
Special-shaped conductor BTTZ fireproof cables, including mica insulation skeleton, conductor and mica insulation layer, wherein the mica is exhausted
Edge layer is that mica insulation band winds the tubular body that is rolled into, the mica insulation skeleton by least three plate mica insulation wall
It being made, the mica insulation wall diversion shape structure, and mica insulation wall inner end connects, outer end is connected to the inner wall of mica insulation layer,
So that being divided into the cavity that fan-shaped cross section inside the mica insulation layer, the conductor is arranged in the cavity, institute
The outer layer jacket for stating mica insulation layer is equipped with shielded layer, and magnesia powder is filled in the interlayer between shielded layer and mica insulation layer
End, magnesia slurry form magnesia and pour into layer, are set with successively from the inside to the outside on the outside of the shielded layer anti-for reinforcing cable
The metal armor layer for protecting performance, the sheath for external fire-retardant flame-retardant layer and for tentatively protecting cable.
Preferably, being filled with magnesia slurry, the oxidation in gap between the mica insulation layer and conductor
The full cavity of magnesium slurry filling.
Preferably, the sheath is stainless steel threaded metal sheath or Halogen polyene hydrogen sheath.
Preferably, the flame-retardant layer is ceramic synthetic refractory insulating tape.
Preferably, the shielded layer is pltine lamina reticularis.
Using the utility model has the beneficial effects that：
This special-shaped conductor BTTZ fireproof cables pass through mica insulation by the way that mica insulation skeleton is arranged inside mica insulation layer
Skeleton completely cuts off conductor, and mica insulation skeleton also has the function of supporting conductor accommodating cavity, even if cable integrally bending, mica are exhausted
Edge skeleton can also be by the bending of itself persistently to conductor insulation.In addition, this cable by the outside of mica insulation layer successively
Setting magnesia pours into layer, shielded layer, metal armor layer, flame-retardant layer, sheath, realizes that the protection-of cable from the outer to the inner is anti-
The functions such as fire-protection-fire prevention protect interlayer and form the state of interval superposition for fire-retardant outer layer, though outer protective and
Fire-proof function is destroyed, and the safeguard function and fire-proof function of internal layer also remain to keep.
Description of the drawings
Fig. 1 is this special-shaped conductor BTTZ fireproof cable overall structure diagrams.
Reference numeral includes：
100- mica insulation skeletons, 200- conductors, 300- mica insulation layers, 400- magnesia pour into layer, 500- shielded layers,
600- metal armor layers, 700- flame-retardant layers, 800- sheaths.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing.
As shown in Figure 1, by taking three core BTTZ fireproof cables as an example, originally implements and a kind of anti-thermoelectricitys of special-shaped conductor BTTZ are provided
Cable, including mica insulation skeleton 100, conductor 200 and mica insulation layer 300, wherein mica insulation layer 300 are that mica insulation band twines
Around the tubular body being rolled into, mica insulation skeleton 100 is made of the mica insulation wall of at least three plate, the mica insulation wall branch
Trouble shape structure, and mica insulation wall inner end connects, outer end is connected to the inner wall of mica insulation layer 300 so that mica insulation layer 300
Inside is divided into the cavity that fan-shaped cross section, and conductor 200 is arranged in the cavities, and the outer layer jacket of mica insulation layer 300 is equipped with
Shielded layer 500 is filled with magnesium oxide powder in the interlayer between shielded layer 500 and mica insulation layer 300, and magnesia slurry is formed
Magnesia pours into layer 400, and 500 outside of shielded layer is set with the metal armor for reinforcing cable protective performance successively from the inside to the outside
Layer 600, the sheath 800 for external fire-retardant flame-retardant layer 700 and for tentatively protecting cable.
Specifically, in special-shaped conductor BTTZ fireproof cables in the present embodiment, mica insulation layer 300 is by being wrapped in pipe
The mica insulation layer 300 that the external wall of shape is formed, the inside of mica insulation layer 300 separate three by mica insulation skeleton 100 and lead
The inside of mica insulation layer 300 is separated into three chambers by body 200, mica insulation skeleton 100, and each conductor 200 is placed respectively
In a chamber, each indoor gap of chamber pours into filling by the magnesia of slurry shape.On the whole, three conductors 200
It is insulated by mica insulation skeleton 100, when cable is by severe impact, mica frame has higher toughness, mica insulation
After skeleton 100 is bent, magnesia slurry can also be filled into gap.
This special-shaped conductor BTTZ fireproof cables pass through cloud by 300 inside setting mica insulation skeleton 100 of mica insulation layer
Female insulation framework 100 completely cuts off conductor 200, and mica insulation skeleton 100 also has the function of supporting 200 accommodating cavity of conductor, even if
Cable integrally bending, mica insulation skeleton 100 persistently can also insulate to conductor 200 by the bending of itself.
In addition, this cable by mica insulation layer 300 be orderly arranged outside each magnesia pour into layer 400, shielded layer 500,
Metal armor layer 600, flame-retardant layer 700, sheath 800 realize the work(such as the protection-fire prevention-protection-fire prevention of cable from the outer to the inner
Can, it protects interlayer and forms the state of interval superposition for fire-retardant outer layer, it is interior even if outer protective and fire-proof function are destroyed
The safeguard function and fire-proof function of layer also remain to keep.
Such as, the sheath 800 of outer layer and flame-retardant layer 700 are destroyed, and the metal armor layer 600 of middle layer still can be persistently to electricity
Core conductor 200 provides protection, and the magnesia of internal layer pours into the offer fire-proof function of battery core conductor 200 of 400 pairs of internal layer of layer.
In the present embodiment, magnesia slurry, oxidation are filled in the gap between mica insulation layer 300 and conductor 200
The full cavity of magnesium slurry filling.
Sheath 800 is stainless steel threaded metal sheath 800 or Halogen polyene hydrogen sheath 800.
Flame-retardant layer 700 is ceramic synthetic refractory insulating tape.
Shielded layer 500 is pltine lamina reticularis.
When making this cable, conductor 200 is squeezed into sector first, 200 sector of conductor is then placed on mica insulation
In skeleton 100 between two mica isolation plates, the cross-sectional area of conductor 200 is less than the sectorial area between mica isolation plate, makes
Conductor 200 and the interval setting of mica isolation plate are obtained, after three conductors 200 are placed on mica insulation skeleton 100, by mica
The outer layer for being wrapped in mica insulation skeleton 100 and conductor 200 of insulating tape spiral status, the tubulose of mica insulation band formation at this time
Mica insulation layer 300, the inner wall of mica insulation layer 300 are connected to the outer end of mica insulation skeleton 100,300 He of mica insulation layer
Also there are gaps between conductor 200, and magnesia slurry is poured into inside the mica insulation layer 300 of tubulose, realize mica insulation layer
300 and its internal generation, then the magnesia of outer layer pour into layer 400, shielded layer 500, metal armor layer 600, flame-retardant layer
700, the production of this cable can be completed in sheath 800, successively installation.
In other embodiments, mica insulation skeleton 100 should at least have 3 mica insulation walls, such as in quad
Mica insulation wall there are four should having.In two core cable, line-styled is presented in mica insulation skeleton 100, is easily broken off, loses
The effect of insulation.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
It, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from this with novel thought
The design of utility model, belongs to the scope of protection of the utility model.
Claims (5)
1. special-shaped conductor BTTZ fireproof cables, it is characterised in that：Including mica insulation skeleton, conductor and mica insulation layer, wherein
The mica insulation layer is that mica insulation band winds the tubular body being rolled into, and the mica insulation skeleton is by least three plate
Mica insulation wall is made, the mica insulation wall diversion shape structure, and mica insulation wall inner end connects, and outer end is connected to mica insulation
The inner wall of layer so that the cavity that fan-shaped cross section is divided into inside the mica insulation layer, the conductor is arranged described
In cavity, the outer layer jacket of the mica insulation layer is equipped with shielded layer, is filled in the interlayer between shielded layer and mica insulation layer
Magnesium oxide powder, magnesia slurry form magnesia and pour into layer, be set with successively from the inside to the outside on the outside of the shielded layer for adding
The metal armor layer of forceful electric power cable barrier propterty, the sheath for external fire-retardant flame-retardant layer and for tentatively protecting cable.
2. special-shaped conductor BTTZ fireproof cables according to claim 1, it is characterised in that：The mica insulation layer and conductor
Between gap in be filled with magnesia slurry, the full cavity of magnesia slurry filling.
3. special-shaped conductor BTTZ fireproof cables according to claim 1, it is characterised in that：The sheath is stainless steel screw thread
Protective metal shell or Halogen polyene hydrogen sheath.
4. special-shaped conductor BTTZ fireproof cables according to claim 1, it is characterised in that：The flame-retardant layer is that ceramics synthesize
Fire resistant insulation tape.
5. special-shaped conductor BTTZ fireproof cables according to claim 1, it is characterised in that：The shielded layer is pltine
Lamina reticularis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395292.7U CN207925164U (en) | 2018-03-22 | 2018-03-22 | Special-shaped conductor BTTZ fireproof cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395292.7U CN207925164U (en) | 2018-03-22 | 2018-03-22 | Special-shaped conductor BTTZ fireproof cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207925164U true CN207925164U (en) | 2018-09-28 |
Family
ID=63596288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820395292.7U Expired - Fee Related CN207925164U (en) | 2018-03-22 | 2018-03-22 | Special-shaped conductor BTTZ fireproof cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207925164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496386A (en) * | 2021-12-22 | 2022-05-13 | 浙江晨光电缆股份有限公司 | Rigid mineral insulation fireproof cable |
-
2018
- 2018-03-22 CN CN201820395292.7U patent/CN207925164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114496386A (en) * | 2021-12-22 | 2022-05-13 | 浙江晨光电缆股份有限公司 | Rigid mineral insulation fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 |