CN209000574U - A kind of soft type nuclear leve measurement cable - Google Patents
A kind of soft type nuclear leve measurement cable Download PDFInfo
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- CN209000574U CN209000574U CN201821977801.3U CN201821977801U CN209000574U CN 209000574 U CN209000574 U CN 209000574U CN 201821977801 U CN201821977801 U CN 201821977801U CN 209000574 U CN209000574 U CN 209000574U
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Abstract
A kind of soft type nuclear leve measurement cable, structure are as follows: from-inner-to-outer successively wraps up wrapping layer, total electro-magnetic screen layer and oversheath outside cable core；The structure of cable core is to be filled to be twisted at least a pair of of core group by glass fibre to constitute, and twisted lay ratio range is 13~15；The structure of core group is first wrapped one layer of polyester belt after being twisted by 2~4 cores, then wraps one layer of grouping electro-magnetic screen layer；Core twisting pitch is not more than 100mm；The structure of core is by the twisted conductor constituted of multiply bare copper wire, the outer extruded insulation layer of conductor.The new design cable shape structure of the utility model cable can effectively increase the softness of cable, and can be useful in selection use in the environment of civilian, military, nuclear facilities, nuclear equipment, nuclear power station and other β, γ, χ ray radiations.
Description
Technical field
The utility model relates to a kind of measurement cable, in particular to a kind of soft type nuclear leve measures cable, is suitable for specified
The measurement cable of voltage 300/500V, belongs to field of cable technology.
Background technique
The environment such as previous nuclear power station special occasions elevator, crane or harsh medical treatment need the measurement cable of softness to be used
Various test equipments are connected, and often this cable is faced with the risk frequently replaced.When essentially consisting in using round cable, hold
It easily cracks in crooked outer surface, braiding layer distortion cannot use so as to cause cable bad.
Utility model content
For frequent mobile environment condition, the utility model cable problem to be solved mainly has:
Reduce bending radius when cable uses, reinforces the softness of cable；
Prevent electromagnetic interference occur between line pair；
Increase the service life of insulating materials.
In order to solve the above-mentioned technical problem, the utility model uses following technical scheme:
A kind of soft type nuclear leve measurement cable, structure are as follows: from-inner-to-outer successively wraps up wrapping layer, total electromagnetism outside cable core
Shielded layer and oversheath；
The structure of the cable core is to be filled to be twisted at least a pair of of core group by glass fibre to constitute, twisted lay ratio model
Enclose is 13~15；
The structure of the core group is first wrapped one layer of polyester belt after being twisted by 2~4 cores, then wraps one layer of grouping electricity
Magnetic masking layer；Core twisting pitch is not more than 100mm；
The structure of the core is by the twisted conductor constituted of multiply bare copper wire, the outer extruded insulation layer of conductor；Insulating layer
Thickness range is 0.45~0.55mm.
The outer diameter of cable is 12.5mm~40.9mm；
There are 2~12 core groups in the cable core, every core group is constituted by 2 cores are twisted；
Wrapping layer outside the cable core is to be made of nominal thickness for 0.1mm thin non-woven fabric gap is wrapped, around Inter-packet gap
Rate is not more than 20%.
Total electro-magnetic screen layer outside the cable core is made of the annealed copper silk braiding that nominal diameter is 0.12mm, is woven
Density is not less than 85%；
The oversheath is that elastomer EVA material composition is extruded outside total electro-magnetic screen layer；The nominal thickness of oversheath
1.2mm, thinnest part thickness are not less than the 80% of nominal value.
The radial section product of the conductor is 0.5mm2~2.5mm2；Conductor is constituted by soft round copper monofilament of annealing is twisted, is twisted
Closing lay ratio range is 20~25, and the direction of lay of copper monofilament is left-hand；The diameter range of copper monofilament is 0.15mm~0.20mm.
The insulating layer is to extrude EPDM rubber Insulation Material composition；The nominal thickness of insulating layer is 0.5mm, thinnest point
Thickness is not less than the 90%-0.1mm of nominal value.
The polyester belt of wrapped one layer of 0.01mm is overlapped outside stranded core, wrapped width of putting up is not less than 2mm；Grouping electricity
Magnetic masking layer is made of the braiding of the annealed copper silk of 0.12mm, and count is not less than 85%.
In the glass fibre of filling, the diameter of glass fiber single filament is not more than 30 microns.
This structurally flexible measures cable under the premise of meeting the basic demands such as cable electrical property, is annealed using multiply jewelry, expensive clothing and other valuables
Copper wire stranded conductor, the filling of multiply glass fibre, ultra-thin wrapped band, thin dielectric layer etc., make it is more soft between dependency structure,
Mobile effect will not be influenced because of the retardance of certain material.Improve the bending property of cable.
The new design cable shape structure of the utility model cable can effectively increase the softness of cable, and can fit
It selects to use in the environment of civilian, military, nuclear facilities, nuclear equipment, nuclear power station and other β, γ, χ ray radiations.
Beneficial effect
After adopting the above technical scheme, the utility model has the following beneficial effects:
(1) Cable Construction Design advantages of simple: reducing lapping structure complicated in the previous construction of cable, reduces bending
The bending radius in direction makes cable be easier to be bent.
(2) stranded annealed copper conductor, controls its pitch range, and conductor structure is made both to be able to maintain soft characteristic,
It again will not be loose.Cable is set to be suitable for being bent frequent occasion.
(3) external signal and electric field can be effectively avoided using 2 core groups braiding electro-magnetic screen layer to pass control signal
The influence passed can also interact to avoid the electromagnetic signal between line pair, cause distorted signals.Pattern is shielded to use, braiding
Shielding is more favorable to cable bend and reply.
(4) more soft EPDM rubber insulating layer, EVA sheath keep the construction of cable more soft, minimum bend half
Diameter can reach 4 times of outside diameters of cable, more flexible, more convenient and the bendings laying environment such as hang suitable for ring.
The utility model cable has used good material and its spy on the basis of newly design cable shape structure
Fixed structural parameters extend the service life of cable to reach, and can be useful under civilian, military, core environment and select to make
With.The cable of measurement class more can be used for the occasions such as other mobile measuring equipment connections.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, conductor；2. insulating layer；3, polyester belt；4, it is grouped electro-magnetic screen layer；5, it fills；6, wrapping layer；7, total electricity
Magnetic masking layer；8, oversheath.
Specific embodiment
Soft type nuclear leve as shown in Figure 1 measures cable, is structure are as follows: successively wrapped up by cable core from-inner-to-outer wrapped
Layer, total electro-magnetic screen layer and oversheath；The structure of the cable core is to be filled to be twisted structure at least a pair of of core group by glass fibre
At twisted lay ratio range is 13~15；The structure of the core group is a first wrapped strata after being twisted by 2~4 cores
Ester band, then wrap one layer of grouping electro-magnetic screen layer；Core twisting pitch is not more than 100mm；The structure of the core is naked by multiply
The twisted conductor constituted of copper wire, the outer extruded insulation layer of conductor；The thickness range of insulating layer is 0.45~0.55mm.
The outer diameter of cable is 12.5mm~40.9mm；
There are 2~12 core groups in the cable core, every core group is constituted by 2 cores are twisted；
Wrapping layer outside the cable core is to be made of nominal thickness for 0.1mm thin non-woven fabric gap is wrapped, around Inter-packet gap
Rate is not more than 20%.
Total electro-magnetic screen layer outside the cable core is made of the annealed copper silk braiding that nominal diameter is 0.12mm, is woven
Density is not less than 85%；
The oversheath is that elastomer EVA material composition is extruded outside total electro-magnetic screen layer；The nominal thickness of oversheath
1.2mm, thinnest part thickness are not less than the 80% of nominal value.
The radial section product of the conductor is 0.5mm2~2.5mm2；Conductor is constituted by soft round copper monofilament of annealing is twisted, is twisted
Closing lay ratio range is 20~25, and the direction of lay of copper monofilament is left-hand；The diameter range of copper monofilament is 0.15mm~0.20mm.
The insulating layer is to extrude EPDM rubber Insulation Material composition；The nominal thickness of insulating layer is 0.5mm, thinnest point
Thickness is not less than the 90%-0.1mm of nominal value.
The polyester belt of wrapped one layer of 0.01mm is overlapped outside stranded core, wrapped width of putting up is not less than 2mm；Grouping electricity
Magnetic masking layer is made of the braiding of the annealed copper silk of 0.12mm, and count is not less than 85%.
In the glass fibre of the filling, the diameter of glass fiber single filament is not more than 30 microns.
The direction of lay of copper monofilament is left-hand.
The Insulation Material of this example is model EPDM cable insulating material, is equipped with specific structural requirement, promotes cable
The radiation in service life and resistance to gamma ray.
After adopting the above scheme, the service life of this cable reaches 60 years or more, and good bending property, Flouride-resistani acid phesphatase are good, add
Work performance is good, can help improve production efficiency.And meet the basic demand of electrical property and mechanical performance simultaneously.
This cable can be subjected to testing as follows, and test result is to pass through.
。
Claims (6)
1. a kind of soft type nuclear leve measures cable, it is characterized in that structure are as follows: from-inner-to-outer successively wraps up wrapping layer, total outside cable core
Electro-magnetic screen layer and oversheath；
The structure of the cable core is to be filled to be twisted at least a pair of of core group by glass fibre to constitute, and twisted lay ratio range is
13~15；
The structure of the core group is first wrapped one layer of polyester belt after being twisted by 2~4 cores, then wraps one layer of grouping electromagnetic screen
Cover layer；Core twisting pitch is not more than 100mm；
The structure of the core is by the twisted conductor constituted of multiply bare copper wire, the outer extruded insulation layer of conductor；The thickness of insulating layer
Range is 0.45~0.55mm.
2. soft type nuclear leve according to claim 1 measures cable, it is characterized in that the outer diameter of cable be 12.5mm~
40.9mm；
There are 2~12 core groups in the cable core, every core group is constituted by 2 cores are twisted；
Wrapping layer outside the cable core is to be made of nominal thickness for 0.1mm thin non-woven fabric gap is wrapped, and wrapped clearance rate is not
Greater than 20%；
Total electro-magnetic screen layer outside the cable core is made of the annealed copper silk braiding that nominal diameter is 0.12mm, count
Not less than 85%；
The oversheath is that elastomer EVA material composition is extruded outside total electro-magnetic screen layer；The nominal thickness 1.2mm of oversheath,
Thinnest part thickness is not less than the 80% of nominal value.
3. soft type nuclear leve according to claim 1 measures cable, it is characterized in that the radial section product of the conductor is
0.5mm2~2.5mm2；Conductor is constituted by soft round copper monofilament of annealing is twisted, and being twisted lay ratio range is 20~25, copper monofilament
Direction of lay is left-hand；The diameter range of copper monofilament is 0.15mm~0.20mm.
4. soft type nuclear leve according to claim 1 measures cable, it is characterized in that the insulating layer is to extrude EPDM
Rubber insulation material is constituted；The nominal thickness of insulating layer is 0.5mm.
5. soft type nuclear leve according to claim 1 measures cable, it is characterized in that being overlapped wrapped one outside stranded core
The polyester belt of layer 0.01mm, wrapped width of putting up is not less than 2mm；Grouping electro-magnetic screen layer is compiled by the annealed copper silk of 0.12mm
It is configured to, count is not less than 85%.
6. soft type nuclear leve according to claim 1 measures cable, it is characterized in that in the glass fibre of the filling, glass
The diameter of fibre single thread is not more than 30 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977801.3U CN209000574U (en) | 2018-11-28 | 2018-11-28 | A kind of soft type nuclear leve measurement cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821977801.3U CN209000574U (en) | 2018-11-28 | 2018-11-28 | A kind of soft type nuclear leve measurement cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000574U true CN209000574U (en) | 2019-06-18 |
Family
ID=66808095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821977801.3U Active CN209000574U (en) | 2018-11-28 | 2018-11-28 | A kind of soft type nuclear leve measurement cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209000574U (en) |
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2018
- 2018-11-28 CN CN201821977801.3U patent/CN209000574U/en active Active
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