CN206849552U - A kind of fireproof cable - Google Patents
A kind of fireproof cable Download PDFInfo
- Publication number
- CN206849552U CN206849552U CN201720543872.1U CN201720543872U CN206849552U CN 206849552 U CN206849552 U CN 206849552U CN 201720543872 U CN201720543872 U CN 201720543872U CN 206849552 U CN206849552 U CN 206849552U
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- layer
- fire
- outside
- cavity
- metal bellows
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Abstract
The utility model belongs to technical field of electric wires and cables,Propose a kind of fireproof cable,Including hollow supporting body,The circumferentially-spaced of hollow supporting body is provided with conductor layer and fire guard,Conductor layer and the equal spiral of fire guard are wrapped in hollow supporting body,Low-smoke halogen-free polyolefin insulating barrier is disposed with outside conductor layer and fire guard,Copper mesh screen layer and fireprotection layer,Metal bellows is provided with outside fireprotection layer,It is cavity between fireprotection layer and metal bellows,Metal bellows is wrapped with overcoat,Several curved support parts are provided with cavity,Curved support part is arranged on the outside of fireprotection layer,Curved support part is connected by support bar with wavy metal inside pipe wall,Flame-retardant layer is filled with hollow support body,Flame-retardant layer is boron mud modified PVC layer,Several through holes are provided with flame-retardant layer,Through hole communicates with cavity,It is smaller that the utility model solves current-carrying capacity of cable in the prior art,And the technical problem that fire protecting performance is poor.
Description
Technical field
The utility model belongs to power cable technical field, is related to a kind of fireproof cable.
Background technology
Cable is widely used in power transmission, and the position that cable uses is a lot, there is buried cable, aerial erection formula electricity
Cable, also there is a cable set in water channel, but traditional cable has that current-carrying capacity is smaller, and the poor technology of fire protecting performance is asked
Topic.
Utility model content
The utility model proposes a kind of fireproof cable, solves above-mentioned technical problem.
What the technical solution of the utility model was realized in：
A kind of fireproof cable, including：
Hollow supporting body, the circumferentially-spaced of the hollow supporting body are provided with conductor layer and fire guard, the conductor layer
It is wrapped in the hollow supporting body with the equal spiral of the fire guard, it is disposed with outside the conductor layer and the fire guard low
The halogen-free polyolefin insulated layer of cigarette, copper mesh screen layer and fireprotection layer, the fireprotection layer is provided with metal bellows outside, described anti-
It is cavity between fire bed and the metal bellows, the metal bellows is wrapped with overcoat, is provided with the cavity
Several curved support parts, the curved support part are arranged on the outside of the fireprotection layer, and the curved support part passes through support
Bar is connected with the wavy metal inside pipe wall, and flame-retardant layer is filled with the hollow support body, and the flame-retardant layer is modified for boron mud
Layer of PVC, several through holes is provided with the flame-retardant layer, the through hole communicates with the cavity.
As further technical characteristic, the fire guard is ceramic fibre fire guard.
As further technical characteristic, the gap between the adjacent conductor layer and fire guard is 0.5mm.
As further technical characteristic, the conductor layer includes the copper conductor set gradually from inside to outside and is crosslinked poly- second
Alkene insulating barrier, the copper conductor are that the twisted compression of more copper cash forms.
As further technical characteristic, the fireprotection layer is ceramics silastic-layer.
As further technical characteristic, resilient rubbber cushion is provided with the curved support part.
Compared with prior art, utility model works principle and have the beneficial effect that：
1st, in the utility model, conductor layer spiral is wrapped in hollow supporting body, adds the current-carrying capacity and electricity of cable
The circumferentially-spaced setting of the stability of streaming, conductor layer and fire guard along hollow supporting body, improve the anti-of cable entirety
Fiery performance, outside be enclosed with successively low-smoke halogen-free polyolefin insulating barrier, copper mesh screen layer, fireprotection layer, metal bellows and
Overcoat, overcoat serve the effect of protection to metal bellows, prevent the mechanical damage under external force effect, metal bellows
The inside diffusion of external flame can be blocked, plays good fire-retardant and fireproof effect, metal bellows is flexible ripple in addition
Line pipe, bending property is good, convenient installation, is cavity between fireprotection layer and metal bellows, enhances radiating effect, hollow branch
Flame-retardant layer is filled with support body, several through holes are provided with flame-retardant layer, while there is good fire resistance, through hole and sky
Chamber communicates, and can form the passage of good heat flow, strengthens radiating effect；Several curved supports are provided with other cavity
Part, for the body inside support cavity, contact outside of the curved support part directly with fireprotection layer, play a part of support, protect
The center that cable body is in bellows is held, radiating effect is more preferable.
2nd, in the utility model, fire guard is ceramic fibre fire guard, has good chemical stability, and with Zhuo
High temperature resistant and fire protecting performance more；The circumferentially-spaced setting of conductor layer and fire guard along hollow supporting body, adjacent conductive layers and
Gap between fire guard is 0.5mm, ensures the stability of electric current transmission while current-carrying capacity improves；Copper conductor in conductor layer
Compression is twisted for more copper cash to form, and further increases the current-carrying capacity of cable；Ceramics silastic-layer uses the longevity as fireprotection layer
Life length, is unlikely to deform, high mechanical strength and has good fire protecting performance；Resilient rubbber cushion is provided with curved support part,
When supporting cable body, prevent from that it is caused to damage.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model structure diagram；
Fig. 2 is conductor layer lapping structure schematic diagram in the utility model；
In figure：1- hollow supporting bodies, 11- flame-retardant layers, 12- through holes, 2- conductor layers, 21- copper conductors, 22- crosslinked polyethylenes
Insulating barrier, 3- fire guards, 4- low-smoke halogen-free polyolefin insulating barriers, 5- copper mesh screen layers, 6- fireprotection layers, 7- metal bellows,
8- cavitys, 81- curved support parts, 82- support bars, 9- overcoats.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, the utility model proposes a kind of fireproof cable, including：
Hollow supporting body 1, the circumferentially-spaced of hollow supporting body 1 are provided with conductor layer 2 and fire guard 3, conductor layer 2 and anti-
Fiery 3 equal spiral of band is wrapped in hollow supporting body 1, and low-smoke halogen-free polyolefin insulation is disposed with outside conductor layer 2 and fire guard 3
Layer 4, copper mesh screen layer 5 and fireprotection layer 6, fireprotection layer 6 are provided with metal bellows 7, fireprotection layer 6 and metal bellows 7 outside
Between be cavity 8, metal bellows 7 is wrapped with overcoat 9, and several curved support parts 81, arc branch are provided with cavity 8
Support member 81 is arranged on the outside of fireprotection layer 6, and curved support part 81 is connected by support bar 82 with the inwall of metal bellows 7, hollow
Flame-retardant layer 11 is filled with supporter 1, flame-retardant layer 11 is boron mud modified PVC layer, and several through holes 12 are provided with flame-retardant layer 11,
Through hole 12 communicates with cavity 8.
In the utility model, the spiral of conductor layer 2 is wrapped in hollow supporting body 1, adds the current-carrying capacity and electricity of cable
The circumferentially-spaced setting of the stability of streaming, conductor layer 2 and fire guard 3 along hollow supporting body 1, improve cable entirety
Fire protecting performance, outside are enclosed with low-smoke halogen-free polyolefin insulating barrier 4, copper mesh screen layer 5, fireprotection layer 6, metal bellows successively
7 and overcoat 9, overcoat 9 effect of protection is served to metal bellows 7, prevent the lower mechanical damage of external force effect, it is golden
Category bellows 7 can block the inside diffusion of external flame, play good fire-retardant and fireproof effect, in addition metal bellows
7 be flexible bellow, and bending property is good, convenient installation, is cavity 8 between fireprotection layer 6 and metal bellows 7, enhances scattered
Thermal effect, hollow supporting body 1 is interior to be filled with flame-retardant layer 11, is provided with several through holes 12 in flame-retardant layer 11, has good resistance
While firing performance, through hole 12 communicates with cavity 8, can form the passage of good heat flow, strengthens radiating effect；It is empty in addition
Several curved support parts 81 are provided with chamber 8, for the body inside support cavity 8, curved support part 81 directly with fire prevention
The contact outside of layer 6, play a part of support, keep cable body to be in the center of bellows 7, radiating effect is more preferable.
Further, fire guard 3 is ceramic fibre fire guard.
In the utility model, fire guard 3 is ceramic fibre fire guard, has good chemical stability, and with Zhuo
High temperature resistant and fire protecting performance more.
Further, the gap between adjacent conductive layers 2 and fire guard 3 is 0.5mm.
In the utility model, the circumferentially-spaced setting of conductor layer 2 and fire guard 3 along hollow supporting body 1, adjacent conductive layers
Gap between 2 and fire guard 3 is 0.5m, ensures the stability of electric current transmission while current-carrying capacity improves.
Further, conductor layer 2 includes the copper conductor 21 and crosslinked polyetylene insulated layer 22 set gradually from inside to outside, and copper is led
Body 21 is that the twisted compression of more copper cash forms.
In the utility model, the copper conductor 21 in conductor layer 2 is twisted compression for more copper cash and formed, and further increases cable
Current-carrying capacity.
Further, fireprotection layer 6 is ceramics silastic-layer.
In the utility model, ceramics silastic-layer service life length, is unlikely to deform, high mechanical strength as fireprotection layer 6
And there is good fire protecting performance.
Further, it is provided with resilient rubbber cushion on curved support part 81.
In the utility model, resilient rubbber cushion is provided with curved support part 81, when supporting cable body, is prevented to it
Cause to damage.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (6)
- A kind of 1. fireproof cable, it is characterised in that including hollow supporting body (1), the hollow supporting body (1) it is circumferentially-spaced Conductor layer (2) and fire guard (3) are provided with, the conductor layer (2) and the fire guard (3) spiral are wrapped in the hollow branch On support body (1),Low-smoke halogen-free polyolefin insulating barrier (4), copper wire screen are disposed with outside the conductor layer (2) and the fire guard (3) Layer (5) and fireprotection layer (6) are covered, metal bellows (7), the fireprotection layer (6) and the gold are provided with outside the fireprotection layer (6) It is cavity (8) between category bellows (7), the metal bellows (7) is wrapped with overcoat (9),Several curved support parts (81) are provided with the cavity (8), the curved support part (81) is arranged on the fire prevention The outside of layer (6), the curved support part (81) are connected by support bar (82) with the metal bellows (7) inwall,It is filled with flame-retardant layer (11) in the hollow supporting body (1), the flame-retardant layer (11) is boron mud modified PVC layer, the resistance Several through holes (12) are provided with combustion layer (11), the through hole (12) communicates with the cavity (8).
- 2. a kind of fireproof cable according to claim 1, it is characterised in that the fire guard (3) is prevented fires for ceramic fibre Band.
- 3. a kind of fireproof cable according to claim 1, it is characterised in that the adjacent conductor layer (2) and fire guard (3) Between gap be 0.5mm.
- A kind of 4. fireproof cable according to claim 1, it is characterised in that the conductor layer (2) include from inside to outside according to The copper conductor (21) and crosslinked polyetylene insulated layer (22) of secondary setting, the copper conductor (21) be twisted compress of more copper cash and Into.
- 5. a kind of fireproof cable according to claim 1, it is characterised in that the fireprotection layer (6) is ceramics silicon rubber Layer.
- 6. a kind of fireproof cable according to claim 1, it is characterised in that be provided with bullet on the curved support part (81) Property rubber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543872.1U CN206849552U (en) | 2017-05-17 | 2017-05-17 | A kind of fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543872.1U CN206849552U (en) | 2017-05-17 | 2017-05-17 | A kind of fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206849552U true CN206849552U (en) | 2018-01-05 |
Family
ID=60796197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720543872.1U Expired - Fee Related CN206849552U (en) | 2017-05-17 | 2017-05-17 | A kind of fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206849552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243688A (en) * | 2018-09-26 | 2019-01-18 | 安徽特种电缆集团有限公司 | A kind of high temperature resistant highly-flexible reel flat cable |
| CN110473661A (en) * | 2019-09-10 | 2019-11-19 | 远东电缆有限公司 | A kind of high-power charging pile cable and its production technology |
-
2017
- 2017-05-17 CN CN201720543872.1U patent/CN206849552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243688A (en) * | 2018-09-26 | 2019-01-18 | 安徽特种电缆集团有限公司 | A kind of high temperature resistant highly-flexible reel flat cable |
| CN110473661A (en) * | 2019-09-10 | 2019-11-19 | 远东电缆有限公司 | A kind of high-power charging pile cable and its production technology |
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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 |
Granted publication date: 20180105 Termination date: 20200517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |