CN200972801Y - Pear type symmetric ceramic insulated fire-proof cable - Google Patents
Pear type symmetric ceramic insulated fire-proof cable Download PDFInfo
- Publication number
- CN200972801Y CN200972801Y CN 200620125373 CN200620125373U CN200972801Y CN 200972801 Y CN200972801 Y CN 200972801Y CN 200620125373 CN200620125373 CN 200620125373 CN 200620125373 U CN200620125373 U CN 200620125373U CN 200972801 Y CN200972801 Y CN 200972801Y
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- Prior art keywords
- cable
- fireproof cable
- outer jacket
- insulating barrier
- copper
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- Expired - Fee Related
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Abstract
The utility model relates to a ball-type symmetric ceramic-insulated flame-retarding cable, and pertains to the cable material technical field. The cable comprises a copper inner conductor, an insulating layer, and an external protective layer. The insulating layer outside the copper inner conductor consists of two semi-column ceramic plates that cooperate with each other, and is provided with an external protective layer after the insulating layer is enclosed with a mica tape. With the technical proposal that the copper inner conductor is arranged in the center hole between two ceramic plates, the utility model has a good insulation effect, involves an easy production process, creates a large cross-section, allows the design length to be determined by a customer according to the actual need, eliminates the need of joints, and has the advantages of good safety performance, a good bending performance and easy construction.
Description
Technical field
This is practical to relate to a kind of cable, belongs to the CABLE MATERIALS technical field, refers in particular to a kind of fireproof cable.
Background technology
The outer pillar of the conductor of fireproof cable adopts copper pipe at present, and cable conductor is big, and copper pipe also will increase, the restriction that produced by copper pipe, and commercially available fireproof cable especially multicore is counted fireproof cable, and its sectional area ratio is less, 50mm
2Above heavy in section multicore fireproof cable can't be produced, and copper pipe sheath flexibility is poor in addition, almost can't be crooked, and the inconvenience construction, its cable cost is higher; The single core mineral insulated cable in heavy in section on the market, the copper pipe sheath can only prolong with stretching mode, and insulating layer material is the ceramic powders form, and its insulation effect is poorer than the insulation effect of forming process of ceramics pipe, and powder type the insulating barrier production method complicated, and the fertile distance of this mode is shorter, and is the longest generally about 100 meters, needs multistage to connect, if long distance connects, the transition joint that needs is many, easily water inlet, and security of products can be poor.
Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency, provide a kind of sectional area big, design rice number can need not transition joint according to customer need surely and connect, security performance is good, having flexibility easily constructs, insulation effect is good, fireproof cable simple for production, main innovation is that the outer cylindrical ceramic insulator layer of copper in-core conductor forms for two blocks of symmetrical half-cylindrical potsherds connect, the copper core is wrapped in the potsherd centre bore that connects, specifically implement like this: pearl formula symmetry ceramic insulation fireproof cable, comprise copper in-core conductor, insulating barrier, outer jacket, it is characterized in that the outer insulating barrier of copper in-core conductor is connected by two blocks of half-cylindrical potsherds of symmetry forms, and adds outer jacket after insulating barrier external application mica tape is wrapped.Do not need annealing in this production process, little power consumption, the production cycle is fast, need not extruding, small investment, the place is few, with the symmetrical expression potsherd of its mineral wool cable, can enlarge according to cross-sectional area of conductor is long-pending, can produce heavy in section fireproof cable, in addition, cable bending radius in construction is bigger, has made things convenient for construction, and can determine length as required, need not to connect with transition joint, security performance is guaranteed and insulate.
Outer jacket of the present utility model can be the outer jacket that metal wire knitted or other metal are made, outer jacket preferably adopts argon arc welding stainless steel wave line steel pipe to make the outer pillar of copper in-core conductor, can increase cable length and need not to use transition joint, the security performance height, the cross-section of cable is long-pending can be designed greatlyyer, particularly can produce 4 core 50mm
2Above fireproof cable, production cost is low, and Cable Bending Radius is bigger, easy construction.
Fireproof cable of the present utility model can be single core fireproof cable, also can the multicore protective cable, and the insulator of single core fireproof cable is put mica tape outward in addition and anti-corrosion type metal silk weaving cover is arranged, and increases the flexibility of cable, and production cost is low.The core body of multicore protective cable is made of copper in-core conductor, insulating barrier, mica tape and metal wire knitted sheath, the stranded stranding of multicore, the cable body is with the high temperature resistant inserts filling of low smoke, zero halogen, and packed layer also is equipped with high-temperature resistant inner lining layer, metal wire knitted or anti-corrosion of metal sheath outward successively.
Two blocks of half-cylindrical potsherds that the utility model cylindrical ceramic insulator layer that copper in-core conductor is outer is designed to symmetry connect form, the copper core is wrapped in the potsherd centre bore that connects, insulation effect is good, manufacture craft is convenient, and the fireproof cable sectional area that obtains is big, a design rice number can need not the transition joint connection surely according to customer need, security performance is good, have easily characteristics such as construction of flexibility.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Embodiment 1, pearl formula symmetry ceramic insulation list core fireproof cable, the outer insulating barrier 2 of copper in-core conductor 1 is connected by two blocks of half-cylindrical potsherds of symmetry and forms, and adds outer jacket after insulating barrier 2 external application mica tapes 3 are wrapped, and outer jacket is the stainless steel ripple steel pipe of metal wire knitted or argon arc welding.
Claims (5)
1. pearl formula symmetry ceramic insulation fireproof cable comprises copper in-core conductor, insulating barrier, and outer jacket is characterized in that the outer insulating barrier of copper in-core conductor is connected by two blocks of half-cylindrical potsherds of symmetry to form, and adds outer jacket after insulating barrier external application mica tape is wrapped.
2. fireproof cable according to claim 1 is characterized in that outer jacket is metal wire knitted or metal tube.
3. fireproof cable according to claim 2 is characterized in that the metal tube outer jacket is the stainless steel ripple steel pipe of argon arc welding.
4. fireproof cable according to claim 1 is characterized in that fireproof cable is single core fireproof cable or multicore protective cable.
5. fireproof cable according to claim 4, the cable body that it is characterized in that the multicore protective cable is with the high temperature resistant inserts filling of low smoke, zero halogen, and packed layer is equipped with high-temperature resistant inner lining layer, metal wire knitted or anti-corrosion of metal pillar layer outward successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125373 CN200972801Y (en) | 2006-11-17 | 2006-11-17 | Pear type symmetric ceramic insulated fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125373 CN200972801Y (en) | 2006-11-17 | 2006-11-17 | Pear type symmetric ceramic insulated fire-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972801Y true CN200972801Y (en) | 2007-11-07 |
Family
ID=38884055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620125373 Expired - Fee Related CN200972801Y (en) | 2006-11-17 | 2006-11-17 | Pear type symmetric ceramic insulated fire-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972801Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430947B (en) * | 2008-12-05 | 2011-01-26 | 张荣生 | Corrugated metal sheath inorganic mineral insulation cable and method for producing the same |
| CN104240830A (en) * | 2014-09-26 | 2014-12-24 | 江苏远方电缆厂有限公司 | Hole-shaped enhanced ceramic insulating electric-control composite cable |
| CN105989915A (en) * | 2015-01-30 | 2016-10-05 | 上海新益电力线路器材有限公司 | Flexible high-temperature-resistant wire cable |
| CN106847400A (en) * | 2017-02-16 | 2017-06-13 | 沈兴线缆集团有限公司 | Copper sheath fire prevention cable |
-
2006
- 2006-11-17 CN CN 200620125373 patent/CN200972801Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430947B (en) * | 2008-12-05 | 2011-01-26 | 张荣生 | Corrugated metal sheath inorganic mineral insulation cable and method for producing the same |
| CN104240830A (en) * | 2014-09-26 | 2014-12-24 | 江苏远方电缆厂有限公司 | Hole-shaped enhanced ceramic insulating electric-control composite cable |
| CN105989915A (en) * | 2015-01-30 | 2016-10-05 | 上海新益电力线路器材有限公司 | Flexible high-temperature-resistant wire cable |
| CN106847400A (en) * | 2017-02-16 | 2017-06-13 | 沈兴线缆集团有限公司 | Copper sheath fire prevention cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20101117 |