CN207637511U - Mold is isolated in a kind of mineral insulated cable and its dentation - Google Patents
Mold is isolated in a kind of mineral insulated cable and its dentation Download PDFInfo
- Publication number
- CN207637511U CN207637511U CN201721830645.3U CN201721830645U CN207637511U CN 207637511 U CN207637511 U CN 207637511U CN 201721830645 U CN201721830645 U CN 201721830645U CN 207637511 U CN207637511 U CN 207637511U
- Authority
- CN
- China
- Prior art keywords
- dentation
- cable
- mineral
- layer
- minerals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of mineral insulated cable and its dentation isolation mold, include by the twisted circular conductor formed of at least two strands of copper wires, the quantity of conductor is at least two, the outer surface overlap wrapping of every conductor has the mineral insulation flame retardant coating that at least two layers of fire-resistant isinglass belt is constituted, to constitute mineral insulation core；Mineral insulation core is mutually twisted to constitute cable core, and the gap between cable core is filled rounding using flame-proof glass fibre rope, and wrapped one layer of fire-resistant isinglass belt is overlapped outside cable core；One layer of pipe thickness of external clad welded of cable core is the aluminum metal pipe of 0.8mm~1.2mm, aluminum metal tube outer surface is coated with one layer of dentation PE separation sleeve to play a supportive role, the outside of dentation PE separation sleeves is provided at least two detent projection structures, dentation PE separation sleeves are coated with the oxygen barrier fireprotection layer of minerals, the oxygen barrier fireprotection layer of minerals is coated with low smoke halogen-free flame-retardant polyolefin oversheath, and cable is integrally prevented fires, waterproof, flame retardant property are good.
Description
Technical field
The utility model is related to field of cable technology, and in particular to a kind of mineral insulated cable and its dentation separation sleeve
Mold.
Background technology
In recent years, since the places such as modern architecture, hotel, station, hospital, mall, stadiums, municipal works offset
Anti- safe requirement is higher and higher, and with the fire resisting of electric wire, fire protecting performance, higher requirements are also raised to mating.Mineral are exhausted
Edge fireproof cable does not burn when fire occurs, does not prolong combustion, with excellent fire prevention, antidetonation, water-fast leaching characteristic, can ensure that fire-fighting
Line security, which is powered, to be run, and electric power safeguard is provided for personnel escape and fire extinguishing, plays the weight of protection life, property, information security
It acts on, therefore is widely applied in the higher ranked circuits of places fire-fighting requirements such as building.
A kind of mineral insulation isolated form fireproof cable more common at present, the construction of cable includes mainly with lower component：Copper
Conductor, mineral insulation flame retardant coating, aluminum metal set, PE (polyethylene) separation sleeve, the oxygen barrier fireprotection layer of minerals, low smoke and zero halogen are orange outer
Sheath.The type fireproof cable has excellent fire-retardant, fire performance, mainly relies on the mineral insulation fire resisting in the construction of cable
The oxygen barrier fireprotection layer these types fire prevention component of layer, aluminum metal set, PE separation sleeves, minerals.Under fire combustion case, in order to true
The operation of mineral insulation core normal power-up is protected, the aluminum metal that protection core is powered, which is sleeved under thermal-flame, can keep complete close
Envelope does not melt, then needs the crucial oxygen barrier fireprotection layer of component minerals, the oxygen barrier fireprotection layer of minerals expanded foamed solid under flame
Change, form one layer of hard, thick and solid barrier, has obstructed flame and the direct injection that aluminum metal covers is melted, to protect aluminum metal
The insulated wire cores of set and its inside.Therefore, this component of the oxygen barrier fireprotection layer of minerals has crucial flameproof protection effect.Its
During cable is manufactured, since material is minerals ooze, can uniformly extrusion cladding process difficulty be larger, minerals
Oxygen barrier fireprotection layer accomplishes that specific thickness, thickness uniformity, cladding are securely indeformable, just seems to the fire protecting performance of cable entirety
It is particularly important.
Mineral insulation aluminium set isolated form fireproof cable more typical at present, the oxygen barrier fireprotection layer of minerals mainly have following two
Kind structure：(1) the oxygen barrier fireprotection layer of the minerals of ooze shape is directly extruded in the smooth circumferential of PE separation sleeves；This knot
Structure, the oxygen barrier fireprotection layer of minerals, which directly extrudes, is coated on PE separation sleeves surface, since PE separation sleeve surface perimeters are smooth, exoskeletal
Support easily causes the oxygen barrier fire prevention layer thickness core shift of minerals, thickness in addition the oxygen barrier fire-proof mud attachment of minerals is poor, quality is softer
The major defects such as uneven are spent, this will largely effect on the whole fire protecting performance of cable, and flameproof protection is not had when fire occurs
Effect causes cable internal mineral insulated wire cores to be burnt, short circuit, and greatly prestige is caused to the operation of fire protection electric line security
The side of body.(2) 6~8 thin wire skeletons are uniformly placed in the oxygen barrier fireprotection layer of minerals：It is this equal in the oxygen barrier fireprotection layer of minerals
The even structure for placing 6~8 iron wire skeletons, the first relatively above-mentioned structure, the oxygen barrier fire-proof mud adhesion of minerals, thickness are uniform
Property has certain improvement.But since iron wire quality is harder, it can not be accurately uniformly distributed in process and be located in mineral
In the oxygen barrier fireprotection layer of matter, still result in the oxygen barrier fireprotection layer core shift of minerals, it is in uneven thickness, deformation the problems such as, influence cable
Whole fire protecting performance.
Utility model content
The purpose of this utility model is to provide a kind of mineral insulated cables and its dentation, and mold is isolated, to solve
Certainly the PE separation sleeves of the existing mineral insulation isolated form fireproof cable in the presence of the prior art are oxygen barrier without support frame, minerals
Fire-proof mud adhesion is poor, the oxygen barrier fire prevention layer thickness core shift of minerals, it is in uneven thickness, deformation the problems such as.
To achieve the above object, on the one hand the utility model provides a kind of mineral insulated cable, including by least two
The twisted circular conductor formed of stock copper wire, the quantity of conductor is at least two, the outer surface overlap wrapping of every conductor have to
The mineral insulation flame retardant coating that few two layers of fire-resistant isinglass belt is constituted, to constitute mineral insulation core；Mineral insulation core is mutually twisted
Cable core is constituted, the gap between cable core is filled rounding using flame-proof glass fibre rope, and wrapped one layer of fireproof mica is overlapped outside cable core
Band；One layer of pipe thickness of external clad welded of cable core is the aluminum metal pipe of 0.8mm~1.2mm, aluminum metal tube outer surface cladding
There are one layer of dentation PE separation sleeve to play a supportive role, the outside of dentation PE separation sleeves to be provided at least two detent projection structures,
Dentation PE separation sleeves are coated with the oxygen barrier fireprotection layer of minerals, and the oxygen barrier fireprotection layer of minerals is coated with low-smoke non-halogen flame-retardant polyene
Hydrocarbon oversheath.
Optionally, the oxygen barrier fireprotection layer of minerals is the oxygen barrier fire prevention mud layer of minerals.
Optionally, detent projection structure is uniformly distributed.
Optionally, the cross section of detent projection structure is rectangle.
Optionally, the longitudinal section of detent projection structure is trapezoidal.
Optionally, the longitudinal section of detent projection structure is isosceles trapezoid.
Optionally, the side wall of conductor is parallel with the side wall of mineral insulation flame retardant coating.
Optionally, the side wall of conductor is parallel with the side wall of the oxygen barrier fireprotection layer of minerals.
On the other hand the utility model provides a kind of dentation isolation mold of mineral insulated cable, including dentation every
From mold ontology, it is convex that 6~8 tooth forms are evenly distributedly provided on the circumference of the center hole of dentation separation sleeve die ontology
It rises.
The utility model has the following advantages that：
Mold is isolated in the mineral insulated cable and its dentation of the utility model, can solve to be deposited in the prior art
Existing mineral insulation isolated form fireproof cable PE separation sleeves without support frame, the oxygen barrier fire-proof mud adhesion of minerals compared with
The problems such as difference, the oxygen barrier fire prevention layer thickness core shift of minerals, in uneven thickness, deformation, it can effectively solve the problem that minerals are oxygen barrier anti-
The problems such as fire bed squeezes out core shift, in uneven thickness, deformation, adhesion is poor, greatly improves the fire protecting performance for promoting cable entirety,
Surface adhesion, the supportive of PE separation sleeves are improved, cable has excellent fire prevention, waterproof, flame retardant property, fully meets
The places such as the higher building of fire-fighting requirements rank, hotel, hospital, workshop, municipal administration, wide market.
Description of the drawings
Fig. 1 is the structural schematic diagram of the mineral insulated cable of the utility model.
Fig. 2 is that the vertical view of mold is isolated in the dentation of the mineral insulated cable of the utility model.
Fig. 3 is that the sectional view along A-A of mold is isolated in the dentation of the mineral insulated cable of the utility model.
In figure, 1 is conductor, and 2 be mineral insulation flame retardant coating, and 3 be flame-proof glass fibre rope, and 4 be aluminum metal pipe, 5 for dentation PE every
From set, 6 be the oxygen barrier fireprotection layer of minerals, 7 be low smoke halogen-free flame-retardant polyolefin oversheath, 8 be dentation separation sleeve die ontology, 9
For toothed projections.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
A kind of mineral insulated cable includes being twisted the circular conductor 1 formed by least two strands of copper wires referring to Fig. 1,
The quantity of conductor 1 is at least two, and the outer surface overlap wrapping of every conductor 1 has the mineral that at least two layers of fire-resistant isinglass belt is constituted
Insulating refractory 2, to constitute mineral insulation core；Mineral insulation core is mutually twisted to constitute cable core, and the gap between cable core is adopted
It is filled rounding with flame-proof glass fibre rope 3, wrapped one layer of fire-resistant isinglass belt is overlapped outside cable core；The outside of cable core is connected using argon arc welding
Continuous pipe-weld cladding technique, it is 0.8mm~1.2mm aluminum metals pipe 4 to form one layer of pipe thickness, and 4 outer surface of aluminum metal pipe is coated with
One layer of dentation PE separation sleeve 5 to play a supportive role, the outside of dentation PE separation sleeves 5 are provided at least two detent projection structures,
Dentation PE separation sleeves 5 are coated with the oxygen barrier fireprotection layer 6 of minerals, and the oxygen barrier fireprotection layer of minerals 6 is coated with low-smoke non-halogen flame-retardant
Polyolefin oversheath 7.
As it can be seen that the mineral insulated cable of the present embodiment, mineral insulation flame retardant coating 2 makes cable have excellent fire resisting special
Property；Aluminum metal pipe 4 makes cable have excellent radial water-resisting and fire performance；Multiple detent projections of 4 outer surface of aluminum metal pipe
Structure, have stronger support frame effect, it is ensured that the oxygen barrier fire-proof mud close attachment of such as minerals, thickness uniformity,
Non-eccentric metaboly, to constitute the oxygen barrier fireprotection layer of minerals with excellent fire protection function 6.
The mineral insulated cable of the utility model, can further include such as lower structure, and seamless aluminum metal pipe 4 is
The seamless aluminum metal pipe of complete seal.The oxygen barrier fireprotection layer 6 of minerals is the oxygen barrier fire prevention mud layer of minerals.Detent projection structure is uniform
Distribution.The cross section of detent projection structure is rectangle.The longitudinal section of detent projection structure is trapezoidal.The vertical of detent projection structure cuts
Face is isosceles trapezoid.The side wall of conductor 1 is parallel with the side wall of mineral insulation flame retardant coating 2.The side wall of conductor 1 and minerals are oxygen barrier
The side wall of fireprotection layer 6 is parallel.The apex angle of detent projection structure is 20 °.
Embodiment 2
A kind of dentation isolation mold of mineral insulated cable, is isolated mold referring to Fig. 2 and Fig. 3, including dentation
Ontology 8 is evenly distributedly provided with 6~8 toothed projections 9 on the circumference of the center hole of dentation separation sleeve die ontology 8.
Mold is isolated in the dentation of the mineral insulated cable of the present embodiment, and toothed projections 9 play support frame
Effect, so that the oxygen barrier fireprotection layer of minerals 6 is effectively adhered to, thickness uniformly, not core shift, indeformable, it is anti-to improve mineral insulation
The fire protecting performance of thermoelectricity cable.The height of toothed projections 9 is determined by the thickness of the oxygen barrier fireprotection layer of minerals 6.In order to make minerals every
6 surface rounding of oxygen fireprotection layer and cable have good fire protecting performance, and the quantity of toothed projections 9 is 6~8, preferably 6.
Dentation separation sleeve die ontology 8 is preferably 45# steel dentation separation sleeve die ontologies, and 6 detent projections are evenly distributed on dentation
On the circumference of 8 center hole of separation sleeve die ontology, the height of detent projection 9 and width according to different cable specifications not
Together, the shape of dentation separation sleeve die ontology 8 and endoporus carry out turning using lathe, wherein in dentation separation sleeve die ontology 8
9 structure of detent projection is complex, is difficult to complete using processing methods such as traditional turning, millings, then uses linear cutter
Technique is processed.The apex angle of toothed projections 9 is 20 °.
It should be noted that mold is isolated in the mineral insulated cable and its dentation of the utility model, mainly to upper
It states structure to be improved, other unmentioned function, component and structures in the prior art can may be used when needed
The component and structure for realizing corresponding function are implemented.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (10)
1. a kind of mineral insulated cable includes by the twisted circular conductor (1) formed of at least two strands of copper wires, feature exists
In the quantity of conductor (1) is at least two, and the outer surface overlap wrapping of every conductor (1) has at least two layers of fire-resistant isinglass belt structure
At mineral insulation flame retardant coating (2), to constitute mineral insulation core；Mineral insulation core is mutually twisted to constitute cable core, cable core it
Between gap rounding is filled using flame-proof glass fibre rope (3), be overlapped wrapped one layer of fire-resistant isinglass belt outside cable core；The outside of cable core
One layer of pipe thickness of clad welded is the aluminum metal pipe (4) of 0.8mm~1.2mm, and aluminum metal pipe (4) outer surface is coated with one layer and rises
The outside of the dentation PE separation sleeves (5) of supporting role, dentation PE separation sleeves (5) is provided at least two detent projection structures, tooth
Shape PE separation sleeves (5) are coated with the oxygen barrier fireprotection layer of minerals (6), and the oxygen barrier fireprotection layer of minerals (6) is coated with low smoke and zero halogen
Fire retardant polyolefin oversheath (7).
2. mineral insulated cable as described in claim 1, which is characterized in that aluminum metal pipe (4) is seamless aluminum metal pipe.
3. mineral insulated cable as described in claim 1, which is characterized in that the oxygen barrier fireprotection layer of minerals (6) is mineral
The oxygen barrier fire prevention mud layer of matter.
4. mineral insulated cable as described in claim 1, which is characterized in that detent projection structure is uniformly distributed.
5. mineral insulated cable as described in claim 1, which is characterized in that the cross section of detent projection structure is square
Shape.
6. mineral insulated cable as described in claim 1, which is characterized in that the longitudinal section of detent projection structure is ladder
Shape.
7. mineral insulated cable as described in claim 1, which is characterized in that the longitudinal section of detent projection structure is isosceles
It is trapezoidal.
8. mineral insulated cable as described in claim 1, which is characterized in that the side wall and mineral insulation of conductor (1) are resistance to
The side wall of fire bed (2) is parallel.
9. mineral insulated cable as described in claim 1, which is characterized in that the side wall and minerals of conductor (1) are oxygen barrier
The side wall of fireprotection layer (6) is parallel.
10. mold, including dentation separation sleeve die ontology (8), feature is isolated in a kind of dentation of mineral insulated cable
It is, 6~8 toothed projections is evenly distributedly provided on the circumference of the center hole of dentation separation sleeve die ontology (8)
(9)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830645.3U CN207637511U (en) | 2017-12-25 | 2017-12-25 | Mold is isolated in a kind of mineral insulated cable and its dentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830645.3U CN207637511U (en) | 2017-12-25 | 2017-12-25 | Mold is isolated in a kind of mineral insulated cable and its dentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207637511U true CN207637511U (en) | 2018-07-20 |
Family
ID=62852379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830645.3U Active CN207637511U (en) | 2017-12-25 | 2017-12-25 | Mold is isolated in a kind of mineral insulated cable and its dentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207637511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN111899926A (en) * | 2020-07-15 | 2020-11-06 | 中天科技海缆有限公司 | Power supply cable for low-voltage frequency conversion |
-
2017
- 2017-12-25 CN CN201721830645.3U patent/CN207637511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903926A (en) * | 2019-02-26 | 2019-06-18 | 湖北宝上电缆有限公司 | A kind of fire prevention midium voltage cable |
| CN111899926A (en) * | 2020-07-15 | 2020-11-06 | 中天科技海缆有限公司 | Power supply cable for low-voltage frequency conversion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201174276Y (en) | Environment protection and security type fire resistant power cable | |
| CN108447610B (en) | Flame-retardant fireproof cable and manufacturing method thereof | |
| CN207637511U (en) | Mold is isolated in a kind of mineral insulated cable and its dentation | |
| CN202996349U (en) | Novel fireproof cable | |
| CN105989914A (en) | Environment-friendly type flexible fireproof cable | |
| CN102637478A (en) | Fire-resistant inflaming retarding high-voltage cable | |
| CN210295985U (en) | Medium-voltage fireproof cable for vertical shaft or high-rise building | |
| CN204087859U (en) | Flexible fire-proof cable | |
| CN105913913A (en) | Intelligent constructional mineral type insulation copper sheath flexible fireproof cable and manufacturing method | |
| CN107622819B (en) | Fireproof computer cable | |
| CN214377772U (en) | Medium-voltage fireproof power cable | |
| CN112071491B (en) | Medium-voltage fireproof cable and preparation method thereof | |
| CN210778014U (en) | Environment-friendly termite-proof power cable | |
| CN211529689U (en) | Flame-retardant and fire-resistant power cable containing ceramic fire-resistant material | |
| CN204348375U (en) | Ceramic polyolefin environment-friendly flame-retardant fire-resistant flexible cable | |
| CN208489039U (en) | A kind of tension flame-retardant fire-resistant power cable | |
| CN209822364U (en) | Fireproof medium-voltage cable | |
| CN209071020U (en) | Lock armo softness waterproof fireproofing cable | |
| CN106653173A (en) | Novel middle-voltage optical fiber composite cable laid behind optical unit | |
| CN206516416U (en) | A kind of midium voltage cable with fire prevention mineral mud | |
| CN205722869U (en) | Intelligent building minerals insulated copper sheath flexible fire-proof cable | |
| CN204270702U (en) | A kind of 10kV cross-linked polyethylene insulated cable with fire resistant flame retardant performance | |
| CN210073441U (en) | Environment-friendly high-flame-retardant fireproof power cable | |
| CN209766100U (en) | Environment-friendly ceramic fireproof cable | |
| CN213123872U (en) | Pottery environmental protection reason hinders fireproof cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |