CN209843295U - Flexible fire-resistant cable with metal sheath - Google Patents
Flexible fire-resistant cable with metal sheath Download PDFInfo
- Publication number
- CN209843295U CN209843295U CN201920348126.6U CN201920348126U CN209843295U CN 209843295 U CN209843295 U CN 209843295U CN 201920348126 U CN201920348126 U CN 201920348126U CN 209843295 U CN209843295 U CN 209843295U
- Authority
- CN
- China
- Prior art keywords
- fire
- metal
- flexible fire
- resistant cable
- resistant
- 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
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 15
- 239000011707 mineral Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 11
- 229920000098 polyolefin Polymers 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000704 physical effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a metal sheath flexible fire-resistant cable, which comprises an outer sheath, a metal sheath, a mineral oxygen-isolating layer, a wrapping layer and a cable core which are arranged from outside to inside in sequence; the cable core comprises a plurality of electric units and fillers arranged at gaps of the electric units. The utility model is suitable for the passage lighting, emergency broadcasting, fire prevention alarm device, automatic fire-fighting equipment and other emergency equipment in the relatively closed or personnel concentrated important building and facility keep the circuit integrality and maintain the electrification, and has the advantages of flame retardance, fire resistance, water resistance, impact resistance and the like besides the electrical and mechanical physical properties of the conventional cable; the erection can be carried out by pipeline, overhead and direct-buried laying modes.
Description
Technical Field
The utility model relates to a flexible fire resisting cable of metal sheath belongs to power transmission technical field.
Background
According to the recent fire statistics in China, the annual average occurrence frequency of electrical fires accounts for 27% of the annual average total occurrence frequency of the fire, accounts for 80% of the annual total occurrence frequency of the fire with a large weight, is the first cause of various fires, and the loss accounts for 53% of the total loss of the fire, while the annual occurrence frequency of the electrical fires in developed countries accounts for 8% -13% of the total occurrence frequency of the fire.
The fire hazard endangers life and property safety, once the fire hazard happens, rescue is extremely important, rescue equipment such as a fire pump, a fire-fighting smoke exhaust device, a fire elevator and emergency lighting and the like all become the guarantee for people to escape, and the 'life lines' of the guarantee are fire-resistant cables; however, the existing fire-resistant cable metal sheath is usually welded by argon arc welding of a copper strip and an aluminum strip, has low fire resistance, water resistance and impact resistance, and cannot keep the line to be switched on rapidly at a certain temperature and within a certain time under the action of water or external force during fire fighting.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's defect, provide a simple structure, fire-resistant, water-fast, the flexible fire resisting cable of impact-resistant metal sheath.
In order to solve the technical problem, the utility model provides a flexible fire resisting cable of metal sheath, its characterized in that: the cable comprises an outer sheath, a metal sheath, a mineral oxygen barrier layer, a wrapping layer and a cable core which are sequentially arranged from outside to inside; the cable core comprises a plurality of electric units and fillers arranged at gaps of the electric units.
Further, the electric unit comprises an insulating layer, a mineral refractory layer and a conductor which are sequentially arranged from outside to inside.
Furthermore, the insulating layer is made of radiation cross-linked polyolefin.
Further, the mineral fire-resistant layer is a calcined mica tape.
Further, the conductor is copper.
Further, the filler is glass fiber.
Further, the wrapping layer is a glass fiber tape.
Furthermore, the material of the mineral oxygen barrier layer is ceramic polyolefin.
Further, the metal sheath is a stainless steel corrugated pipe.
Further, the outer sheath is made of low-smoke halogen-free polyolefin.
The utility model discloses the beneficial effect who reaches: the utility model provides a flexible fire-resistant cable with metal sheath, which is suitable for the passage illumination, emergency broadcasting, fire-proof alarm device, automatic fire-fighting equipment and other emergency equipment in the relatively closed or personnel concentrated important buildings and facilities to keep the integrity of the circuit and maintain the electrification, has the advantages of flame retardance, fire resistance, water resistance, impact resistance and the like besides the electrical and mechanical physical properties of the conventional cable; the erection can be carried out by pipeline, overhead and direct-buried laying modes.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1. an outer sheath; 2. a metal sheath; 3. a mineral oxygen barrier layer; 4. wrapping a covering; 5. a filler; 6. an insulating layer; 7. a mineral refractory layer; 8. a conductor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the utility model provides a flexible fire resisting cable of metal sheath, including oversheath 1, metal sheath 2, the mineral that outside-in set gradually, separate oxygen layer 3, around covering 4 and cable core. The cable core comprises a plurality of electric units and fillers 5 arranged at gaps of the electric units, wherein the fillers 5 are glass fibers.
The electric unit comprises an insulating layer 6, a mineral refractory layer 7 and a conductor 8 which are arranged in sequence from outside to inside. The insulating layer 6 is made of irradiation cross-linked polyolefin. The conductor 8 is made of copper, and three conductors with the thickness of 70mm are adopted in the embodiment2And a 35mm root2The insulating layers are different in color so as to be convenient to distinguish; the 70mm is2The outer diameter of the electric unit is 13.2mm and 35mm2The outer diameter of the electric unit is 9.9 mm; when in use, the cross section of the electric unit conductor can be adjusted to meet different requirements of usersThe requirement of the amount of shutoff. The mineral fire-resistant layer is a calcined mica tape and has a thickness of 0.6 mm.
The wrapping layer 4 is a glass fiber tape. The material of the mineral oxygen-isolating layer 3 is ceramic polyolefin, and the thickness is 3 mm. The metal sheath 2 is made of corrugated stainless steel and has a thickness of 0.3 mm. The material of oversheath 1 is low smoke and zero halogen polyolefin, and thickness is 2.1mm, and the external diameter is 38.7 mm.
The utility model discloses flexible fire resisting cable of metal sheath has following advantage:
1. the conductor section is large, and the selectable range of the conductor section is 1 ~ 300 mm2And the requirements of different intercepting flow of users are met.
2. The bending radius is small: the bending radius can reach 12 times of the outer diameter of the cable.
3. The fireproof performance is good, the fireproof performance can be realized for 180min at the temperature of 950 ~ 1000 ℃ and the waterproof and impact-resistant performance is realized.
4. The application range is wide: the fire resistant cable is suitable for maintaining line integrity and maintaining power on for walkway lighting, emergency broadcasts, fire alarm devices, automatic fire fighting equipment, and other emergency equipment in enclosed or personnel-intensive critical buildings and facilities.
5. The use is convenient: the installation and the laying are simple and convenient.
6. The service life is long: the service life can reach more than 30 years.
The utility model provides a metal sheath flexible fire-resistant cable, which not only has the electrical and mechanical physical properties of the conventional cable, but also has the advantages of flame retardance, fire resistance, water resistance, impact resistance and the like; the erection can be carried out by pipeline, overhead and direct-buried laying modes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (9)
1. A flexible fire-resistant cable of metal sheath which characterized in that: the cable comprises an outer sheath, a metal sheath, a mineral oxygen barrier layer, a wrapping layer and a cable core which are sequentially arranged from outside to inside; the cable core comprises a plurality of electric units and fillers arranged in gaps of the electric units; the electric unit comprises an insulating layer, a mineral fire-resistant layer and a conductor which are sequentially arranged from outside to inside.
2. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the insulating layer is made of irradiation cross-linked polyolefin.
3. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the mineral fire-resistant layer is a calcined mica tape.
4. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the conductor is copper.
5. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the filler is glass fiber.
6. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the wrapping layer is a glass fiber tape.
7. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the material of the mineral oxygen-isolating layer is ceramic polyolefin.
8. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the metal sheath is a stainless steel corrugated pipe.
9. The metal-sheathed flexible fire-resistant cable according to claim 1, wherein: the outer sheath is made of low-smoke halogen-free polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348126.6U CN209843295U (en) | 2019-03-19 | 2019-03-19 | Flexible fire-resistant cable with metal sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348126.6U CN209843295U (en) | 2019-03-19 | 2019-03-19 | Flexible fire-resistant cable with metal sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843295U true CN209843295U (en) | 2019-12-24 |
Family
ID=68907043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920348126.6U Active CN209843295U (en) | 2019-03-19 | 2019-03-19 | Flexible fire-resistant cable with metal sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678162A (en) * | 2022-04-06 | 2022-06-28 | 深圳市金环宇电线电缆有限公司 | Environment-friendly fire-resistant signal cable |
-
2019
- 2019-03-19 CN CN201920348126.6U patent/CN209843295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678162A (en) * | 2022-04-06 | 2022-06-28 | 深圳市金环宇电线电缆有限公司 | Environment-friendly fire-resistant signal cable |
| CN114678162B (en) * | 2022-04-06 | 2022-12-06 | 深圳市金环宇电线电缆有限公司 | Cleaning device and cooling device of environment-friendly fire-resistant signal cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202871387U (en) | High flexibility fireproof power cable | |
| CN102568691A (en) | Environment-friendly mid-voltage fire resistant cable | |
| CN103606398A (en) | Cable for urban light rail subway service | |
| CN211907047U (en) | Energy-saving environment-friendly high-flame-retardant high-fire-resistant cable | |
| CN209843295U (en) | Flexible fire-resistant cable with metal sheath | |
| CN104810094A (en) | Crosslinked polyethylene insulating and refractory armored cable with rated voltage of 10 KV and manufacturing method thereof | |
| CN104795163A (en) | Ethylene propylene rubber insulated fireproof armored cable with nominal voltage of 10KV and production method of ethylene propylene rubber insulated fireproof armored cable | |
| CN204440934U (en) | Super flexibility can be prevented fires mineral insulated cable | |
| CN202502825U (en) | Environment-friendly medium-voltage fireproof cable | |
| CN212782841U (en) | Flame-retardant B1-grade fireproof single-core power cable with corrugated metal sheath | |
| CN205354735U (en) | Urban rail transit is with moving accuse composite cable | |
| CN208538511U (en) | A kind of fireproof cable | |
| CN206134294U (en) | Tensile fireproof control cable | |
| CN204516446U (en) | The ethylene propylene rubber insulated fireproof armored cable of rated voltage 10kV | |
| CN105304177A (en) | Power control composite braided shield flexible cable for urban railway system | |
| CN211907066U (en) | Optical fiber composite mineral substance insulated flexible fire-resistant cable | |
| CN215265667U (en) | Fire-resistant and fire-resistant fireproof cable | |
| CN220252899U (en) | Ultralow heat release fireproof cable | |
| CN205595103U (en) | Fireproof cable for optoelectrical composite | |
| CN209591571U (en) | Flexible environment friendly type aluminium alloy core fireproof cable | |
| CN210467379U (en) | Low-smoke halogen-free fire-resistant wire | |
| CN205376141U (en) | Urban rail transit is with moving compound flexible cable that blocks water of synthesizing of accuse | |
| CN209199647U (en) | A kind of naval vessel termite-resistant rodent-resistant low-smoke non-halogen flame-retardant control cable | |
| CN216450421U (en) | Urban rail is with anti-impact, resistant two shielding direct current power cable that prevent fires of dragging mineral | |
| CN216487458U (en) | High-reliability halogen-free low-smoke flame-retardant fire-resistant cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240117 Address after: 214000, No. 58 Mashan Hushan Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Hongtu Optoelectronic Cable (Wuxi) Co.,Ltd. Address before: No. 11 Xinke Fourth Road, High tech Development Zone, Pukou District, Nanjing City, Jiangsu Province, 211106 Patentee before: JIANGSU HITEKER Co.,Ltd. |