CN207558465U - A kind of shell-less fire resistant low-voltage cable - Google Patents
A kind of shell-less fire resistant low-voltage cable Download PDFInfo
- Publication number
- CN207558465U CN207558465U CN201721300824.6U CN201721300824U CN207558465U CN 207558465 U CN207558465 U CN 207558465U CN 201721300824 U CN201721300824 U CN 201721300824U CN 207558465 U CN207558465 U CN 207558465U
- Authority
- CN
- China
- Prior art keywords
- outside
- low
- shell
- fire
- garland formula
- 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.)
- Expired - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000011214 refractory ceramic Substances 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims 1
- 241001083492 Trapa Species 0.000 claims 1
- 235000014364 Trapa natans Nutrition 0.000 claims 1
- 235000009165 saligot Nutrition 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 206010063832 Electromagnetic interference Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
Abstract
The utility model discloses a kind of shell-less fire resistant low-voltage cables, including garland formula core, wrapped low-smoke bittern-free highly fire-proof binding tape is overlapped outside garland formula core, copper strip shielding layer is extruded outside low-smoke bittern-free highly fire-proof binding tape, the fireprotection layer that three layers of flameproof fabric overlap is extruded outside copper strip shielding layer, the plastic bellows of high temperature resistant is cased with outside fireprotection layer；The garland formula core is made of the garland formula refractory ceramics pipe of four round insulation cores and co-extrusion outside four round insulation cores；The center of the refractory ceramics pipe is equipped with heat emission hole.The utility model has high tenacity, high-impact, good bending property, the performances such as high-temperature resistant, fire prevention, anti-interference.
Description
Technical field
The utility model belongs to electric wire field, in particular to a kind of shell-less fire resistant low-voltage cable.
Background technology
With the development of China's economic and Process of Urbanization Construction, urban distribution network system has seemed especially crowded, and a large amount of cables are handed over
Mistake is crisscrossed in urban distribution network, and since cable laying space is limited, a large amount of cable laying together, proposes the safety of power grid
Higher requirement, is especially increasingly taken seriously to the protection of power grid fire.The fire protection measure of common cable has two
Kind, when using fire-proof cable bridge rack, fire prevention packet or fire prevention channel, but the measure causes cable heat dissipation performance to be deteriorated, thermal resistivity
It improves, current-carrying capacity reduces；Second is that using fire safe type cable, wrapped mica tape is as flame retardant coating outside conductor for the cable, but this is arranged
It applies and only can guarantee that cable short-duration power, cable in burning still need to scrap the cable more renewed after combustion, it can not be exhausted in cable
It is continuing with, therefore increase secondary Meteorological after being repaired in the case that edge and conductor are intact.The usual section very little of conductor, from
Load-carrying properties are poor, and especially in use, since load-carrying properties are poor under not buried operating mode, cable own wt can cause cable
Cable conductor is broken, while is also easily damaging tiny cable conductor in construction.Anti-interference is poor, is conveyed in itself when cable
When containing higher harmonic components in electric current, cable can generate electromagnetic interference to surrounding electronic equipment；Conversely, extraneous electromagnetism
Interference can also be coupled on cable core, pair various electrical generation electromagnetic interferences to connect with cable.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of shell-less fire resistant low-voltage cables.
A kind of shell-less fire resistant low-voltage cable described in the utility model, including garland formula core, in garland formula
Wrapped low-smoke bittern-free highly fire-proof binding tape is overlapped outside core, copper strip shielding layer is extruded outside low-smoke bittern-free highly fire-proof binding tape,
The fireprotection layer that three layers of flameproof fabric overlap is extruded outside copper strip shielding layer, the plastic bellows of high temperature resistant is cased with outside fireprotection layer；
Garland formula high temperature resistant of the garland formula core by four round insulation cores and co-extrusion outside four round insulation cores
Ceramic tube is formed；The center of the refractory ceramics pipe is equipped with heat emission hole.
The insulated wire cores are made of aluminium conductor and the high-temperature resistant rubber insulating layer being extruded in outside aluminium conductor.
The heat emission hole is diamond shape, circle or rectangular.
The beneficial effects of the utility model are：
1st, the utility model has very strong from load-carrying properties, changes more original core twisted synthesizing cable cored structures,
So that the stress point of cable is concentrated on single line core, it is not easily broken；
2nd, the utility model is overlapped wrapped low-smoke bittern-free highly fire-proof binding tape outside garland formula core, not only so that cable tool
There is fire-resistant, be preferably filled with the irregular gap of core, also secure core and be not easy to change；
3rd, the utility model is equipped with copper strip shielding layer, can make shielding line and use as the neutral conductor or ground wire, be applicable in
In ac rated voltage 0.6/1kV and the anti-power transmission compared under strong electromagnetic, lightning stroke environment claimed below, cable is enhanced
Anti-interference, extraneous electromagnetic interference will not be coupled on cable core, and what is pair connected with cable various will not electrically produce
Raw electromagnetic interference；
4th, flameproof fabric and the plastic bellows of high temperature resistant are externally provided in the utility model cable so that fireproofing of cable reaches
Optimum performance, high temperature resistant plastic bellows have a high tenacity, high-impact, good bending property, high-temperature resistant, acidproof, lubricating oil, cold
But performances such as liquid, resistant to chemical etching, fire-retardant, can bear the weight that foot is stepped on, not broken, indeformable, can restore rapidly, and
Itself is without any damage.
5th, equipped with garland formula refractory ceramics pipe, heat-resisting quantity and impact resistance, and with good toughness, resistance to mechanical
Thermal shock resistance properties is excellent, and is equipped with heat emission hole at the center of ceramic tube, greatly reduces the temperature in core.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment：
As shown in Figure 1, a kind of shell-less fire resistant low-voltage cable described in the utility model, including garland formula line
Core is overlapped wrapped low-smoke bittern-free highly fire-proof binding tape 5 outside garland formula core, copper is extruded outside low-smoke bittern-free highly fire-proof binding tape
Band shielded layer 6, the fireprotection layer 7 that three layers of flameproof fabric overlap is extruded outside copper strip shielding layer, resistance to height is cased with outside fireprotection layer
Thermometer bulb moulds bellows 8；The garland formula core is by four round insulation cores and co-extrusion outside four round insulation cores
Garland formula refractory ceramics pipe 3 form；The insulated wire cores are by aluminium conductor 1 and the high temperature resistant rubber being extruded in outside aluminium conductor
Glue insulating layer 2 is formed.The center of the refractory ceramics pipe is equipped with heat emission hole 4, which is diamond shape, circle or rectangular.
The utility model provides the form and implementation of shell-less fire resistant low-voltage cable, and the above is only
The preferred implementation method of the utility model, it is noted that for those skilled in the art, do not departing from this
Under the premise of utility model principle, several improvement can also be made, these improvement also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of shell-less fire resistant low-voltage cable, it is characterised in that：Including garland formula core, the weight outside garland formula core
Lap wound packet low-smoke bittern-free highly fire-proof binding tape, extrudes copper strip shielding layer, in copper strip shielding outside low-smoke bittern-free highly fire-proof binding tape
Layer is outer to extrude the fireprotection layer that three layers of flameproof fabric overlap, and the plastic bellows of high temperature resistant is cased with outside fireprotection layer；The flower
Garland formula refractory ceramics pipe structure of the ring type core by four round insulation cores and co-extrusion outside four round insulation cores
Into；The center of the refractory ceramics pipe is equipped with heat emission hole.
2. shell-less fire resistant low-voltage cable according to claim 1, it is characterised in that：The insulated wire cores by
Aluminium conductor and the high-temperature resistant rubber insulating layer being extruded in outside aluminium conductor are formed.
3. shell-less fire resistant low-voltage cable according to claim 1, it is characterised in that：The heat emission hole is water chestnut
Shape, circle or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721300824.6U CN207558465U (en) | 2017-09-30 | 2017-09-30 | A kind of shell-less fire resistant low-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721300824.6U CN207558465U (en) | 2017-09-30 | 2017-09-30 | A kind of shell-less fire resistant low-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207558465U true CN207558465U (en) | 2018-06-29 |
Family
ID=62675429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721300824.6U Expired - Fee Related CN207558465U (en) | 2017-09-30 | 2017-09-30 | A kind of shell-less fire resistant low-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207558465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644706A (en) * | 2017-09-30 | 2018-01-30 | 无锡市长城电线电缆有限公司 | A kind of shell-less fire resistant low-voltage cable |
-
2017
- 2017-09-30 CN CN201721300824.6U patent/CN207558465U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644706A (en) * | 2017-09-30 | 2018-01-30 | 无锡市长城电线电缆有限公司 | A kind of shell-less fire resistant low-voltage 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 |
Granted publication date: 20180629 Termination date: 20190930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |