CN208570150U - Single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable - Google Patents
Single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable Download PDFInfo
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- CN208570150U CN208570150U CN201820517611.7U CN201820517611U CN208570150U CN 208570150 U CN208570150 U CN 208570150U CN 201820517611 U CN201820517611 U CN 201820517611U CN 208570150 U CN208570150 U CN 208570150U
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- propylene rubber
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Abstract
The utility model relates to a kind of ethylene propylene rubber insulated flexible cables of single-core medium-voltage, solve the deficiencies in the prior art, technical solution are as follows: including cable conductor, semiconductive belting layer, conductor shield, insulating layer, external shielding layer, wire sheathing, inner restrictive coating, fiber braiding layer and oversheath, if the cable conductor is that the section that carried interest circle annealed copper wire is twisted into is circular conductor, semiconductive belting layer is surrounded with outside the cable conductor, the outside packet of semiconductive belting layer is equipped with three layers of conductor shield once squeezed out, insulating layer and external shielding layer, the conductor shield inner wall is bonded with the outer wall of semiconductive belting layer, the outside of the external shielding layer, which is successively wrapped, is equipped with wire sheathing, inner restrictive coating, fiber braiding layer and oversheath.
Description
Technical field
The utility model relates to a kind of cables, and in particular to a kind of single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable.
Background technique
Usually by several or the cable of similar rope that several groups of conducting wires (every group at least two) are twisted, every group of conducting wire
Between mutually insulated, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.Cable has interior logical
Electricity, the feature of external insulation.Flexible cable is one kind common in cable, at present country's similar product, and flexible cable is in use
Since the intensity and wearability of material are not good enough, service life is very short.
201711166379.3 cable of published application, publication date 2017-11-21, disclosed technology include cable core and
The insulating layer being coated on outside cable core, the shielded layer and cable core and insulating layer of insulating layer outer cladding form cable core unit, in cable core list
Member is externally provided with titanium layer and wearing layer.The cable of the utility model can significantly simplify the structure and production technology of cable,
While guaranteeing cable performance, the weight of cable is effectively reduced, the diameter of cable is reduced.This technology has still remained: state
Interior similar product, cable is not good enough due to the intensity of material and wearability in use, and service life is still very short.
Utility model content
Utility model aims to solve above-mentioned prior art country similar product, cable in use due to
The intensity and wearability of material are not good enough, and it is ethylene propylene rubber insulated to provide a kind of single-core medium-voltage for service life still very short problem
Use flexible cable.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of ethylene propylene rubber insulated use of single-core medium-voltage
Flexible cable, including cable conductor, semiconductive belting layer, conductor shield, insulating layer, external shielding layer, wire sheathing, inner sheath
Layer, fiber braiding layer and oversheath, if it is circular lead that the cable conductor, which is the section that carried interest circle annealed copper wire is twisted into,
Body, is surrounded with semiconductive belting layer outside the cable conductor, the outside packet of semiconductive belting layer be equipped with three layers once squeeze out lead
Body shielded layer, insulating layer and external shielding layer, the conductor shield inner wall are bonded with the outer wall of semiconductive belting layer, the external screen
The outside for covering layer, which is successively wrapped, is equipped with wire sheathing, inner restrictive coating, fiber braiding layer and restrictive coating.Cable conductor is using multiply circle
Shape annealed copper wire (the 5th kind of conductor) is twisted into circle, and wrapped semiconductive band outside conductor extrudes internal shield, EP rubbers outside
And external shielding layer, then it is metal knitted in outside progress, inner restrictive coating just is extruded later, outer braided fiber enhancement layer finally extrudes
Restrictive coating.The innovative point of this product is that conductor is added using canoe, and controls cable and signal cable stranding volume
One layer of restrictive coating is extruded after knitting, and effectively raises the service life of cable.
Preferably, the insulating layer is ethylene propylene rubber insulated layer.
Preferably, the thickness of the inner sheath is less than or equal to the thickness of the oversheath, the inner sheath is to be provided with
The sheath of several closed cavities.The oversheath of original thickness is changed to oversheath a part of a part of thickness by the utility model
The inner sheath of thickness allows oversheath to occur damaged when used, is replaced when inner sheath breakage.Closed cavity is set
It sets but also the buckling performance of inner sheath is improved.
Preferably, the volume of all closed cavities is greater than the 2% of inner sheath overall volume in the inner sheath；In described
The volume of all closed cavities is less than the 10% of inner sheath overall volume in sheath；The arbitrary cross section of the single closed cavity
Area is respectively less than the 10% of inner sheath cross-sectional area.
Preferably, filled with leakage instruction powder in the closed cavity, the loading of the leakage instruction powder is small
In equal to the 50% of the closed cavity volume.
The substantial effect of the utility model is: wrapped semiconductive band, internal shield, EP rubbers and external screen outside conductor
Cover three layers of extrusion process of layer.Make the electric property of cable more preferably.Fibrage has been carried out outside inner sheath, has been squeezed outside fibrage
Wrap one layer of restrictive coating.Wearability and integral strength improve cable when moving.Both the above processing technology improves the cable
Service life.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
In figure: 1, cable conductor, 2, semiconductive belting layer, 3, conductor shield, 4, insulating layer, 5, external shielding layer, 6, gold
Belong to braiding layer, 7, inner restrictive coating, 8, fiber braiding layer, 9, oversheath.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically
It is bright.
Embodiment 1:
A kind of single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable (referring to attached drawing 1), including cable conductor 1, semiconductive band
Layer 2, conductor shield 3, insulating layer 4, external shielding layer 5, wire sheathing 6, inner restrictive coating 7, fiber braiding layer 8 and oversheath 9,
If the cable conductor is that the section that carried interest circle annealed copper wire is twisted into is circular conductor, it is surrounded with outside the cable conductor
The outside packet of semiconductive belting layer, semiconductive belting layer is equipped with three layers of conductor shield, insulating layer and external shield once squeezed out
Layer, the conductor shield inner wall are bonded with the outer wall of semiconductive belting layer, and the outside of the external shielding layer, which is successively wrapped, is equipped with gold
Belong to braiding layer, inner restrictive coating, fiber braiding layer and oversheath.The insulating layer is ethylene propylene rubber insulated layer.In the present embodiment, lead
External wrapped semiconductive band, three layers of internal shield, EP rubbers and external shielding layer extrusion process.Make the electrical resistance of cable
It can be more preferably.Fibrage has been carried out outside inner sheath, and one layer of restrictive coating is extruded outside fibrage.Cable wearability and whole when moving
Body intensity improves.Both the above processing technology improves the service life of the cable.The diameter of fabric is equal in wire sheathing
Or the diameter less than fabric in the fiber braiding layer.Fiber refers in particular to glass fibre in the present embodiment.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, the difference is that, the thickness of inner sheath described in the present embodiment is less than
Equal to the thickness of the oversheath, the inner sheath is the sheath for being provided with several closed cavities.Own in the inner sheath
The volume of closed cavity is greater than the 2% of inner sheath overall volume；The volume of all closed cavities is less than inner sheath in the inner sheath
The 10% of overall volume；The arbitrary cross section area of the single closed cavity is respectively less than the 10% of inner sheath cross-sectional area.Institute
It states filled with leakage instruction powder in closed cavity, the loading of the leakage instruction powder is less than or equal to the closed cavity body
Long-pending 50%.In the present embodiment, it can not replace when oversheath abrasion, only be carried out again more when inner sheath indicates
It changes, saves cost.
Embodiment 3:
The present embodiment is substantially the same manner as Example 1, the difference is that, radial fabric in wire sheathing in the present embodiment
For copper wire, broadwise fabric is glass fibre, and the diameter of glass fibre is less than or equal to the diameter of the copper wire.
Embodiment described above is a kind of preferable scheme of the utility model, is not made to the utility model any
Formal limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (5)
1. a kind of single-core medium-voltage it is ethylene propylene rubber insulated use flexible cable, it is characterised in that: including cable conductor, semiconductive belting layer,
Conductor shield, insulating layer, external shielding layer, wire sheathing, inner restrictive coating, fiber braiding layer and oversheath, the cable are led
If body is that the section that carried interest circle annealed copper wire is twisted into is circular conductor, semiconductive band is surrounded with outside the cable conductor
The outside packet of layer, semiconductive belting layer is equipped with three layers of conductor shield, insulating layer and external shielding layer once squeezed out, the conductor
Shielded layer inner wall is bonded with the outer wall of semiconductive belting layer, and the outside of the external shielding layer is successively wrapped equipped with wire sheathing, interior
Restrictive coating, fiber braiding layer and oversheath.
2. single-core medium-voltage according to claim 1 is ethylene propylene rubber insulated to use flexible cable, it is characterised in that: the insulating layer is
Ethylene propylene rubber insulated layer.
3. single-core medium-voltage according to claim 1 is ethylene propylene rubber insulated to use flexible cable, it is characterised in that: the inner sheath
Thickness is less than or equal to the thickness of the oversheath, and the inner sheath is the sheath for being provided with several closed cavities.
4. single-core medium-voltage according to claim 3 is ethylene propylene rubber insulated to use flexible cable, it is characterised in that: in the inner sheath
The volume of all closed cavities is greater than the 2% of inner sheath overall volume；The volume of all closed cavities is less than interior in the inner sheath
The 10% of sheath overall volume；The arbitrary cross section area of single closed cavity is respectively less than the 10% of inner sheath cross-sectional area.
5. single-core medium-voltage according to claim 4 is ethylene propylene rubber insulated to use flexible cable, it is characterised in that: the closed cavity
It is interior to indicate that powder, the loading of the leakage instruction powder are less than or equal to the 50% of the closed cavity volume filled with leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820517611.7U CN208570150U (en) | 2018-04-12 | 2018-04-12 | Single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820517611.7U CN208570150U (en) | 2018-04-12 | 2018-04-12 | Single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208570150U true CN208570150U (en) | 2019-03-01 |
Family
ID=65481245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820517611.7U Active CN208570150U (en) | 2018-04-12 | 2018-04-12 | Single-core medium-voltage is ethylene propylene rubber insulated to use flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208570150U (en) |
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2018
- 2018-04-12 CN CN201820517611.7U patent/CN208570150U/en active Active
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