CN206451531U - Copper sheath fire prevention cable - Google Patents
Copper sheath fire prevention cable Download PDFInfo
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- CN206451531U CN206451531U CN201720139388.2U CN201720139388U CN206451531U CN 206451531 U CN206451531 U CN 206451531U CN 201720139388 U CN201720139388 U CN 201720139388U CN 206451531 U CN206451531 U CN 206451531U
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Abstract
The utility model discloses a kind of copper sheath fire prevention cable; including the conductor cores positioned at center; the outside of conductor cores is surrounded with the mica belt for protecting conductor cores and preventing conductor cores from aoxidizing; silicone insulation layer is provided between mica belt and conductor cores, mica belt peripheral hardware is equipped with longitudinal seam welding copper sheath layer；The conductor cores are formed using many conductor strands, including at least one be located at center, cross-sectional area of conductor be circular center conductor, the outside of center conductor is stranded there is at least one layer to stir rear section being capable of compact arranged profile conductor layer.The utility model is on the basis of good fire protecting performance requirement is met, with preferable humidity resistance, particularly being capable of the making of overlength degree, the use of reduction construction center tap, to ensure that the transmission of electric energy and information provides reliable guarantee.
Description
Technical field
The utility model is related to power cable technical field, particularly a kind of fire prevention cable.
Background technology
The medium that cable is transmitted as electric power and electric energy is distributed, is widely used in controlling installation, connection equipment, conveying electric
In terms of power.Short circuit or breaking problem may occur in use for cable, power communication can be caused to interrupt, therefore
Today of information technology fast development, to ensure that the reliability requirement of information transfer and power supply is also more and more higher, this is just right
The requirement of cable performance proposes high requirement.
The performance indications of cable performance are also embodied in addition to the electric conductivity of itself：It is fire protecting performance, humidity resistance, explosion-proof
Performance, decay resistance, temperature performance, expansion character, tensile strength, elasticity, plasticity, hardness, toughness and fatigue strength etc.
Aspect.But cable on the market is only capable of meeting the requirement of one or two kind of function mostly at present, it is impossible to while meeting people to cable
The demand of many aspects；Particularly the preferable fireproof cable of sales volume, is pressed using tank and aoxidized mostly due to its mineral layer fireprotection layer
Magnesium powder drawing is molded, along with being influenceed by conductor core production process, to prevent that phenomenon of rupture, cable occur in its work progress
Factory length will be influenceed by very big, the length of most of fireproof cables is generally more than 200 meter, so as to cause construction
Process center tap is more, is that easy generation breaking phenomena hides some dangers for.
The content of the invention
The utility model technical issues that need to address are to provide a kind of power cable, are meeting good fire protecting performance requirement
On the basis of, particularly being capable of the making of overlength degree, the use of reduction construction center tap, to ensure with preferable humidity resistance
The transmission of electric energy and information provides reliable guarantee.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
A kind of copper sheath fire prevention cable, including the conductor cores positioned at center, the outside of conductor cores is surrounded with leads for protection
Body core and the mica belt for preventing conductor cores from aoxidizing, are provided with silicone insulation layer, mica belt between mica belt and conductor cores
It is outer to be provided with longitudinal seam welding copper sheath layer；The conductor cores are formed using many conductor strands, are located at center including at least one
, cross-sectional area of conductor be circular center conductor, the outside of center conductor is stranded, which to have at least one layer to stir rear section, closely to arrange
The profile conductor layer of row.
The cross sectional shape of each profile conductor is trapezoidal knot in a kind of above-mentioned copper sheath fire prevention cable, the profile conductor layer
Structure, the short end of trapezoidal conductor is set towards center conductor.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
Conductor cores of the present utility model are used centered on the center conductor of circular section, odd-shaped cross section conductor loop is around center conductor
Structure, can not only make be in close contact between each conductor, increasing section product improves electric conductivity, but also makes respectively to lead
Possess split between body, therefore bending property is good, minimum bending radius up to 3 times of outer diameter of cable, even if repeatedly,
Phenomenon of rupture will not also occur for bending；Along with copper sheath layer use longitudinal seam welding technique, can closely include mica belt,
Silicone insulation layer and conductor cores so that whole cable becomes more consolidation, so that under conditions of equal performance requirement, electricity
The external diameter of cable can reduce 50%, and weight saving about 30% is convenient to install, and also reduces the occupancy of spatial volume.Because this practicality is new
Type uses the conductor cored structure and copper sheath manufacture craft of special process so that it is longer that the utility model can make, through reality
Test, length of the present utility model can be at least fabricated to more than 2 kms, single to meet most construction demands, reduction is applied
The use of work center tap, to ensure that the transmission of electric energy and information provides reliable guarantee.
Further, since outermost layer of the present utility model uses copper sheath, therefore its shielding properties is greatly improved, both can be to prevent
The only interference of cable to other cables in itself, can prevent interference of the external magnetic field to itself, so as to ensure that information transfer again
Reliability；Also, copper sheath has certain intensity and toughness, thus cable by bending, stretch, the deformation such as reverse
When, the opposite location between conductor cores and copper sheath keeps constant, therefore will not occur short circuit phenomenon, would not also influence cable
Electric property and insulating properties.
Insulating barrier of the present utility model is produced using extrusion process, and insulating materials uses silica gel, with it is nonhygroscopic, can enter
Row immersion is suppressed, therefore humidity resistance is greatly improved.
Brief description of the drawings
Fig. 1 is section of structure of the present utility model.
Wherein：1. conductor cores, 11. center conductors, 12. profile conductors, 2. silicone insulations layer, 3. mica belts, 4. longitudinal joints
Weld copper sheath layer.
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
A kind of copper sheath prevents fires cable, its structure as shown in figure 1, including the conductor cores 1 positioned at center, conductor cores 1 it is outer
Portion is surrounded with mica belt 3, for protecting conductor cores and preventing conductor cores from aoxidizing；It is provided between mica belt 3 and conductor cores 1
Longitudinal seam welding copper sheath layer 4 is provided with outside silicone insulation layer 2, mica belt 3.
Conductor cores 1 are formed using many conductor strands, are located at center, cross-sectional area of conductor including at least one in circle
Heart conductor 11, the outside of center conductor is stranded there is at least one layer to stir rear section being capable of compact arranged profile conductor layer.This reality
Apply in example, the cross sectional shape that each profile conductor 12 in two layers of profile conductor layer, profile conductor layer is set altogether is trapezium structure, trapezoidal
The short end of conductor is set towards center conductor, as shown in Figure 1.
The utility model sets the trapezoid cross section chi of conductor cores profile conductor according to conductor combined closure system first when making
It is very little, on the basis of performance parameter is ensured, profile conductor layer is closely adjacent on the periphery of center conductor；Pass through extruding again
Technique extrudes silicone insulation layer outside conductor cores；Then in the outer wrapped mica belt of silicone insulation layer；Finally outside mica belt
Copper sheath layer is wrapped up by longitudinal seam welding technique.
Above-described embodiment is preferred embodiment of the present utility model, is not used to limit the utility model.For example abnormal shape is led
The cross sectional shape of body can also be other structures, as long as combined closely between each conductor can be realized after center conductor
Shape, that is, fall within the scope of the present application.
Claims (2)
- The cable 1. a kind of copper sheath is prevented fires, it is characterised in that：Including the conductor cores positioned at center（1）, conductor cores（1）Outside around It is surrounded by the mica belt for protecting conductor cores and preventing conductor cores from aoxidizing（3）, mica belt（3）It is provided between conductor cores Silicone insulation layer（2）, mica belt（3）It is outer to be provided with longitudinal seam welding copper sheath layer（4）；The conductor cores（1）Formed using many conductor strands, be located at center, cross-sectional area of conductor including at least one to be circular Center conductor（11）, the outside of center conductor is stranded there is at least one layer to stir rear section being capable of compact arranged profile conductor layer.
- 2. a kind of copper sheath fire prevention cable according to claim 1, it is characterised in that：Each abnormal shape in the profile conductor layer Conductor（12）Cross sectional shape be trapezium structure, the short end of trapezoidal conductor is set towards center conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139388.2U CN206451531U (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720139388.2U CN206451531U (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206451531U true CN206451531U (en) | 2017-08-29 |
Family
ID=59666281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720139388.2U Active CN206451531U (en) | 2017-02-16 | 2017-02-16 | Copper sheath fire prevention cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206451531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847400A (en) * | 2017-02-16 | 2017-06-13 | 沈兴线缆集团有限公司 | Copper sheath fire prevention cable |
-
2017
- 2017-02-16 CN CN201720139388.2U patent/CN206451531U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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