CN103762026A - Fire-resisting cable filled with metallic oxide - Google Patents
Fire-resisting cable filled with metallic oxide Download PDFInfo
- Publication number
- CN103762026A CN103762026A CN201410046047.1A CN201410046047A CN103762026A CN 103762026 A CN103762026 A CN 103762026A CN 201410046047 A CN201410046047 A CN 201410046047A CN 103762026 A CN103762026 A CN 103762026A
- Authority
- CN
- China
- Prior art keywords
- cable
- fire
- metal oxide
- layer
- resisting cable
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention provides a fire-resisting cable filled with a metallic oxide. The fire-resisting cable comprises a plurality of cable cores and a center cushion layer, wherein the cable cores are distributed around the center cushion layer in an annular shape, the cable cores are twisted into the cable and then squeezed in an outer sheath in a wrapped mode, each cable core comprises a conductor, a mica layer and anti-flaming cross linked polyethylene insulated material, the gaps between the multiple cable cores is provided with metallic oxide filling layers, and a comprehensive waterproof and fireproof layer stable in structure is composed of the mica layers, the anti-flaming cross linked polyethylene insulated material and the metallic oxide filling layers. After being solidified, the metallic oxide layers and the whole cable cores are integrated, and the metal oxide layer plays a role in isolating flames and reducing heated temperature in the cable and can serve as a protective layer to effectively protect the cable from damage caused by actions of mechanical outer force or water. The fire-resisting cable not only can bear the outer force, but also can continue to supply power normally under the complex ablaze condition, and usage safety under the ablaze environment condition is improved.
Description
Technical field
The present invention relates to a kind of fire-resisting cable, relate in particular to a kind of metal oxide and fill fire-resisting cable.
Background technology
At present, fire-resisting cable many on conductor wrapped mica tape, extruded insulation layer, twisted synthesizing cable and extrude oversheath, insulating barrier is generally crosslinked polyethylene or polyvinyl chloride, and oversheath is polyvinyl chloride or polyolefine material, and polyvinyl chloride, crosslinked polyethylene, polyolefine material are slowly decomposition after flame high temperature sintering, wrapped mica tape keeps the insulation property of whole circuit, makes cable can continue normal operation.But under actual Fire Conditions, cable is also subject to the impact of other external force and environmental factor, such as object falls, form to impact, water dripping etc.; Mica tape adds adhesive by mica powder and is bonded into banded structure, and too high temperature can make adhesive failure, after mica layer is impacted, can come off from conductor, insulation continuity lost efficacy, moisture content slowly permeates along Mica tape lamellar spacing, causes electric leakage, the very large hidden danger of having given emergence power fail safe band.
Because current fire-resisting cable cannot meet the specific factor under fire hazard environment, the fail safe of using under ignition condition in order to overcome existing fire-resisting cable, the utility model provides a kind of metal oxide to fill fire-resisting cable, and this fire-resisting cable can effectively adapt to various fire environments.
Summary of the invention
Technical problem to be solved by this invention is to overcome defect of the prior art, provide a kind of metal oxide to fill fire-resisting cable, this cable is being subject to continue more than 3 hours normal power supplies under fiery condition, and being subject to there is anti-mechanical shock and waterproof ability under fiery condition, improved the safety in utilization of cable under the environmental condition of catching fire.
For solving the problems of the technologies described above, the invention provides a kind of metal oxide and fill fire-resisting cable, comprise many cores and center bed course, core is around center bed course annular spread, after many core twisted synthesizing cables, extrude oversheath, every core is followed successively by conductor, mica layer and flame-retardant crosslinking polyethylene insulated from inside to outside, gap between many cores is provided with metal oxide packed layer, mica layer, a flame-retardant crosslinking polyethylene insulated and constitutionally stable comprehensive water-fast fire bed of metal oxide packed layer composition.
As a further improvement on the present invention, metal oxide packed layer is equipped with adhesive, swelling catalyst, carburization agent, blowing agent by magnesium oxide and forms.
As a further improvement on the present invention, flame-retardant crosslinking polyethylene insulated through modification, modification is that to take the nontoxic modified vistanex of Halogen be primary raw material, adds auxiliary agent mixed processing.
As a further improvement on the present invention, auxiliary agent is crosslinking agent, antioxidant, carburization agent, the agent of one-tenth shell.
The beneficial effect that the present invention reaches: the invention provides a kind of metal oxide and fill fire-resisting cable, by the wrapped mica tape of conductive surface, form ground floor flame retardant coating; Mica tape surface extrudes the flame-retardant crosslinking polyethylene insulated layer through modification, and flame-retardant crosslinking polyethylene insulated layer forms charring layer and continues to be coated on mica layer after flame high temperature sintering, forms comprehensive refractory insulating layer with mica layer; Cable core is filled metal oxide outward; after solidifying, metal oxide layer forms a whole with whole cable core; metal oxide layer plays isolation flame, reduces the inner heating temperature of cable, can be used as the destruction that protective layer effectively protects cable because of mechanical external force or moisture, cable to be caused.Under the environment that this cable is had relatively high expectations in fire protecting performance, operation is relatively stable, reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, the invention provides a kind of metal oxide and fill fire-resisting cable, comprise four cores and center bed course 4, core is around center bed course 4 annular spread, after four core twisted synthesizing cables, extrude oversheath 6, the gap that every core is followed successively by between conductor 1, mica layer 2 and flame-retardant crosslinking polyethylene insulated 3, four cores is from inside to outside provided with metal oxide packed layer 5; Metal oxide packed layer 5 is equipped with adhesive, swelling catalyst, carburization agent, blowing agent by magnesium oxide and forms, and after high temperature, forms a shell water insoluble and that can not melt; Flame-retardant crosslinking polyethylene insulated 3 through modification, modification is that to take the nontoxic modified vistanex of Halogen be primary raw material, adds the auxiliary agent mixed processing such as crosslinking agent, antioxidant, carburization agent, the agent of one-tenth shell, has plastic properties under normal temperature, meeting carbonization after high temperature, crust.Mica layer 2, flame-retardant crosslinking polyethylene insulated 3 and metal oxide packed layer 5 form a constitutionally stable comprehensive water-fast flame retardant coating, this is water-fast, and fire-resistant layer structure is tight, there is hard shell, anti-mechanical shock ability and the waterproof ability of the cable that can effectively improve when being subject to fire.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. a metal oxide is filled fire-resisting cable, comprise many cores and center bed course (4), described core is around center bed course (4) annular spread, after many core twisted synthesizing cables, extrude oversheath (6), every core is followed successively by conductor (1) from inside to outside, mica layer (2) and flame-retardant crosslinking polyethylene insulated (3), it is characterized in that: the gap between many cores is provided with metal oxide packed layer (5), described mica layer (2), flame-retardant crosslinking polyethylene insulated (3) and metal oxide packed layer (5) form a constitutionally stable comprehensive water-fast fire bed.
2. a kind of metal oxide according to claim 1 is filled fire-resisting cable, it is characterized in that: described metal oxide packed layer (5) is equipped with adhesive, swelling catalyst, carburization agent, blowing agent by magnesium oxide and forms.
3. a kind of metal oxide according to claim 1 is filled fire-resisting cable, it is characterized in that: described flame-retardant crosslinking polyethylene insulated (3) are through modification, described modification is that to take the nontoxic modified vistanex of Halogen be primary raw material, adds auxiliary agent mixed processing.
4. a kind of metal oxide according to claim 3 is filled fire-resisting cable, it is characterized in that: described auxiliary agent is crosslinking agent, antioxidant, carburization agent, the agent of one-tenth shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046047.1A CN103762026A (en) | 2014-02-10 | 2014-02-10 | Fire-resisting cable filled with metallic oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046047.1A CN103762026A (en) | 2014-02-10 | 2014-02-10 | Fire-resisting cable filled with metallic oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103762026A true CN103762026A (en) | 2014-04-30 |
Family
ID=50529250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410046047.1A Pending CN103762026A (en) | 2014-02-10 | 2014-02-10 | Fire-resisting cable filled with metallic oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103762026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993203A (en) * | 2019-12-24 | 2020-04-10 | 浙江正泰电缆有限公司 | Preparation method of aluminum alloy cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001035267A (en) * | 1999-07-22 | 2001-02-09 | Yazaki Corp | Fire resisting wire and fire resisting cable |
| CN101914236A (en) * | 2010-08-19 | 2010-12-15 | 王进 | Irradiation crosslinking halogen-free high flame-retardant cable material and preparation method thereof |
| CN102163473A (en) * | 2010-02-17 | 2011-08-24 | 日立电线株式会社 | Electric wire and cable using non-halogen flame retardant resin composition |
| CN102515607A (en) * | 2011-11-30 | 2012-06-27 | 广东联塑科技实业有限公司 | Prescription of intumescent filler for fireproof package |
| CN203102899U (en) * | 2013-01-29 | 2013-07-31 | 宏胜电线电缆有限公司 | Mineral-insulated fireproof cable |
| CN203746477U (en) * | 2014-02-10 | 2014-07-30 | 无锡市群星线缆有限公司 | Metal oxide filled fire resistant cable |
-
2014
- 2014-02-10 CN CN201410046047.1A patent/CN103762026A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001035267A (en) * | 1999-07-22 | 2001-02-09 | Yazaki Corp | Fire resisting wire and fire resisting cable |
| CN102163473A (en) * | 2010-02-17 | 2011-08-24 | 日立电线株式会社 | Electric wire and cable using non-halogen flame retardant resin composition |
| CN101914236A (en) * | 2010-08-19 | 2010-12-15 | 王进 | Irradiation crosslinking halogen-free high flame-retardant cable material and preparation method thereof |
| CN102515607A (en) * | 2011-11-30 | 2012-06-27 | 广东联塑科技实业有限公司 | Prescription of intumescent filler for fireproof package |
| CN203102899U (en) * | 2013-01-29 | 2013-07-31 | 宏胜电线电缆有限公司 | Mineral-insulated fireproof cable |
| CN203746477U (en) * | 2014-02-10 | 2014-07-30 | 无锡市群星线缆有限公司 | Metal oxide filled fire resistant cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993203A (en) * | 2019-12-24 | 2020-04-10 | 浙江正泰电缆有限公司 | Preparation method of aluminum alloy cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103177812A (en) | Environment-friendly medium-voltage fireproof cable | |
| CN103065718A (en) | Fire-resistant power cable | |
| CN103971842A (en) | Polyvinyl chloride insulation and sheath flame-retardant and fire-proof power cable | |
| CN104299714A (en) | Low-smoke zero-halogen medium-voltage fire-resistant power cable | |
| CN102903447A (en) | 6-35 KV mechanical impact resistance three-core fireproof power cable | |
| CN202584880U (en) | Polyvinyl chloride insulation and sheathed thin steel wire armored fireproof power cable | |
| CN202275611U (en) | Halogen free low smoke flame retarding spraying resistant shock resistant fireproof cable | |
| CN206921560U (en) | Flexible mineral insulation fire prevention rolling stock cable | |
| CN203941747U (en) | Fire lift fireproof control cable | |
| CN203706730U (en) | High-flame-retardant low smoke halogen-free medium-voltage fire resisting cable | |
| CN203746477U (en) | Metal oxide filled fire resistant cable | |
| CN103762026A (en) | Fire-resisting cable filled with metallic oxide | |
| CN204463893U (en) | A kind of mineral insulating flexible fireproof cable | |
| CN105976916A (en) | High flame-retardant power cable applied to nuclear power station | |
| CN104867577A (en) | Novel environmental protection safety type fireproof cable | |
| CN205177445U (en) | Fireproof cable | |
| CN112447323B (en) | Medium-voltage fireproof power cable and manufacturing process thereof | |
| CN203118662U (en) | Environmental protection type medium voltage fire prevention cable | |
| CN202549472U (en) | Fire-resistant power cable | |
| CN203858917U (en) | Special cable for control system of communication base station | |
| CN203941749U (en) | The fire-proof and explosion-proof Plastic-sheathed Cable of middle pressure | |
| CN203205114U (en) | Isolation-type plastic insulated fireproofing cable | |
| CN202615856U (en) | Marine refractory control cable | |
| CN202839099U (en) | Silicone-rubber insulating high-temperature-resistant power cable | |
| CN105448391A (en) | Environment-friendly fireproof cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |
|
| RJ01 | Rejection of invention patent application after publication |