CN213988342U - High-temperature-resistant composite insulated wire - Google Patents
High-temperature-resistant composite insulated wire Download PDFInfo
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- CN213988342U CN213988342U CN202022861668.9U CN202022861668U CN213988342U CN 213988342 U CN213988342 U CN 213988342U CN 202022861668 U CN202022861668 U CN 202022861668U CN 213988342 U CN213988342 U CN 213988342U
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- insulated wire
- insulating layer
- high temperature
- heat
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- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 111
- 239000003365 glass fiber Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 229920006351 engineering plastic Polymers 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- 239000002985 plastic film Substances 0.000 claims abstract description 6
- 229920006255 plastic film Polymers 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 9
- 230000005684 electric field Effects 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of power transmission lines, and discloses a high temperature resistant composite insulated wire, which comprises a wire core, wherein the outer part of the wire core is sequentially wrapped with an inner shielding layer, an insulating layer, an outer shielding layer, a filling layer and a sheath from inside to outside, the insulating layer comprises a heat insulating layer, a heat resistant layer and a protective layer from outside to inside, the insulating layer is made of engineering plastics made of polyamide materials, the heat resistant layer is a glass fiber layer, the utility model discloses a setting the insulating layer comprising the protective layer, the heat resistant layer and the insulating layer between the inner shielding layer and the outer shielding layer, wherein the protective layer is a polytetrafluoroethylene plastic film, the heat resistant layer is made of glass fiber materials, the insulating layer is made of polyamide engineering plastics, and has good heat resistant and heat insulating effects, thereby greatly improving the high temperature resistance of the insulated wire, enabling the insulated wire to resist the high temperature of 250 ℃, and avoiding the insulating layer from being damaged below 250 ℃, the cable core is well protected, and the service life of the insulated wire is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the power transmission line, concretely relates to high temperature resistant compound insulated wire.
Background
The periphery of the lead is uniformly and hermetically wrapped with a layer of non-conductive material, such as: resin, plastic, silicon rubber, PVC and the like to form an insulating layer, thereby preventing the electric conductor from contacting with the outside to cause accidents such as electric leakage, short circuit, electric shock and the like. It is classified into two major categories, rubber insulated wire and polyvinyl chloride insulated wire, according to the purpose and the structure of the wire.
Present insulated wire simple structure, the material is ordinary, only possesses the effect of basic protection sinle silk at ordinary temperature, and when ambient operating environment temperature is higher, the insulated wire is heat-labile, and short service life, the shell fragile, make the sinle silk expose easily, thereby influence its normal electrically conductive function, there is the problem that local electric field intensity concentrates, seriously influence the circuit, produce the electric leakage risk even, the security performance is low, and present basic insulated wire is comparatively ordinary, the function is single, when meeting with the conflagration, the insulated wire burns out very easily, make the sinle silk expose in the air, make whole circuit burnt out, bring economic loss, and bring hidden danger for people's personal safety.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant composite insulation line to solve current composite insulation line heat resistance poor with easy burning when meeting with the conflagration, the problem that the security performance is low.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature resistant compound insulated wire, includes the sinle silk, the outside from interior to exterior of sinle silk wraps up in proper order has internal shield layer, insulating layer, outer shielding layer, filling layer and sheath, the insulating layer includes insulating layer, heat-resistant layer and the protective layer that from exterior to interior contains in proper order.
Preferably, the heat insulation layer is made of engineering plastics made of polyamide materials, the heat-resistant layer is a glass fiber layer, and the protective layer is a polytetrafluoroethylene plastic film.
Preferably, the outer part of the outer shielding layer is wrapped with a metal shielding layer, the filling layer is formed by a gap between the metal shielding layer and the sheath, and the metal shielding layer is made of woven copper mesh.
Preferably, the inside of filling layer is filled with glass fiber rope and fire prevention daub, and glass fiber rope wraps up in the outside of metal shield layer.
Preferably, the materials of the inner shielding layer and the outer shielding layer are both composed of a semi-conductive material, polyethylene as a base material and carbon black.
Preferably, the sheath is made of polypropylene, and the wire core is an annealed round copper wire.
Compared with the prior art, the utility model, following beneficial effect has:
(1) the utility model discloses a set up the insulating layer that contains the protective layer, heat-resisting layer and insulating layer between internal shield layer and outer shielding layer, wherein the protective layer is polytetrafluoroethylene plastic film, the heat-resisting layer adopts the glass fiber material, the insulating layer adopts polyamide engineering plastics to make, play fine heat-resisting thermal-insulated effect, thereby improve the high temperature resistance of insulated wire greatly, make its high temperature that can resist 250 ℃, thereby avoid the insulating layer to damage below 250 ℃, play fine guard action to the line core, the life of extension insulated wire.
(2) The utility model discloses an at the outside parcel glass fiber layer of metallic shield layer to pack the fire prevention daub in the filling layer, glass fiber layer and fire prevention daub play fine fire-retardant fire prevention efficiency, it is flammable when meeting with the conflagration to prevent the insulated wire, the insulating layer can play thermal-insulated effect simultaneously, give people before the insulating layer burns out and provide sufficient time and put out a fire, thereby guaranteed that the sinle silk is not damaged, the safety of whole circuit has been protected, avoid economic loss and potential safety hazard, the function of insulated wire has been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view of the insulating layer of the present invention;
in the figure: the cable comprises a cable core-1, an inner shielding layer-2, an insulating layer-3, an outer shielding layer-4, a metal shielding layer-5, a filling layer-6, a sheath-7, a heat insulation layer-8, a heat-resistant layer-9 and a protective layer-10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a high temperature resistant compound insulated wire, includes sinle silk 1, and sinle silk 1's outside from interior to exterior wraps up in proper order has internal shield layer 2, insulating layer 3, external shield layer 4, filling layer 6 and sheath 7, and insulating layer 3 includes insulating layer 8, heat-resistant layer 9 and protective layer 10 that contain in proper order from exterior to interior.
Furthermore, the heat insulation layer 8 is made of engineering plastics made of polyamide materials, heat insulation performance is good, most of heat is effectively prevented from being transmitted to the inside of the heat insulation layer 3, heat resistance of the heat insulation layer 3 is improved, the heat resistance layer 9 is a glass fiber layer, insulation performance is good, heat resistance is strong, corrosion resistance is good, mechanical strength is high, and the protection layer 10 is a polytetrafluoroethylene plastic film and is good in heat resistance and insulation performance.
Further, the outside parcel of outer shielding layer 4 has metal shield 5, and filling layer 6 is formed by the gap between metal shield 5 and sheath 7, metal shield 5 is made by the establishment copper mesh, metal shield 5 is used for shielding self electric field, make inside not receive outside electromagnetic interference, and inside electromagnetic energy does not run to the outside easily, strengthen the effect of restriction electric field in the insulating layer, can also prevent axial surface discharge, can play certain ground protection effect simultaneously, if sinle silk 1 takes place the damage, the electric current that leaks out can flow in the ground net through metal shield 5, play the safety protection effect.
Specifically, the inside packing of filling layer 6 has glass fiber rope and fire prevention daub, and glass fiber rope wraps up in the outside of metal shielding layer 5, and glass fiber rope has good fire-retardant property, and fire prevention daub possesses fire resistance, and insulating layer 3 is easily fired when can avoiding the conflagration, gives people and provides sufficient time before insulating layer 3 burns out and puts out a fire to guaranteed that sinle silk 1 is not damaged, protected the safety of whole circuit.
It is worth to say that, the material of internal shield layer 2 and external shield layer 4 is by the semi-conductive material with polyethylene for the base material add carbon black and constitute, and internal shield layer 2 avoids forming the gap between sinle silk 1 and the insulating layer 3 and leads to sinle silk 1 surface not smooth to avoid the electric field to concentrate, and external shield layer 4 prevents that insulating layer 3 from discharging to metallic shield 5.
Further, the sheath 7 is made of polypropylene, and the wire core 1 is an annealed round copper wire.
The utility model discloses a theory of operation and use flow: when the utility model is used, a worker uses the high-temperature-resistant composite insulated wire in a circuit, the insulated wire is made of a glass fiber material by arranging an insulating layer 3 containing a protective layer 10, a heat-resistant layer 9 and a heat-insulating layer 8 between an inner shielding layer 2 and an outer shielding layer 4, wherein the protective layer 10 is a polytetrafluoroethylene plastic film, the heat-resistant layer 9 is made of a glass fiber material, and the heat-insulating layer 8 is made of polyamide engineering plastic, so that a good heat-resistant and heat-insulating effect is achieved, the high-temperature-resistant performance of the insulated wire is greatly improved, the insulated wire can resist the high temperature of 250 ℃, the damage of the insulating layer 3 below 250 ℃ is avoided, a good protection effect is achieved on a wire core 1, and the service life of the insulated wire is prolonged;
simultaneously at 5 outside parcel glass fiber layers of metallic shield layer, and pack the fire prevention daub in filling layer 6, glass fiber layer and fire prevention daub play fine fire-retardant fire prevention efficiency, it is flammable when meeting with the conflagration to prevent the insulated wire, insulating layer 8 can play thermal-insulated effect simultaneously, it puts out a fire to give people and provide sufficient time before insulating layer 3 burns out, thereby guaranteed that sinle silk 1 is not damaged, the safety of whole circuit has been protected, avoid economic loss and potential safety hazard, the function of insulated wire has been improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a high temperature resistant compound insulated wire, includes sinle silk (1), its characterized in that: the cable comprises a cable core (1), wherein the cable core is characterized in that an inner shielding layer (2), an insulating layer (3), an outer shielding layer (4), a filling layer (6) and a sheath (7) are sequentially wrapped outside the cable core from inside to outside, and the insulating layer (3) comprises a heat insulation layer (8), a heat-resistant layer (9) and a protective layer (10) which are sequentially included from outside to inside.
2. The high temperature resistant composite insulated wire of claim 1, wherein: the heat insulation layer (8) is made of engineering plastics made of polyamide materials, the heat-resistant layer (9) is a glass fiber layer, and the protective layer (10) is a polytetrafluoroethylene plastic film.
3. The high temperature resistant composite insulated wire of claim 1, wherein: the outside parcel of outer shielding layer (4) has metal shield layer (5), and filling layer (6) are formed by the gap between metal shield layer (5) and sheath (7), metal shield layer (5) are made by weaving the copper mesh.
4. The high temperature resistant composite insulated wire of claim 1, wherein: the inner shielding layer (2) and the outer shielding layer (4) are both made of semi-conductive materials, polyethylene is used as a base material, and carbon black is added.
5. The high temperature resistant composite insulated wire of claim 1, wherein: the sheath (7) is made of polypropylene, and the wire core (1) is an annealed round copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022861668.9U CN213988342U (en) | 2020-12-02 | 2020-12-02 | High-temperature-resistant composite insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022861668.9U CN213988342U (en) | 2020-12-02 | 2020-12-02 | High-temperature-resistant composite insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213988342U true CN213988342U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022861668.9U Active CN213988342U (en) | 2020-12-02 | 2020-12-02 | High-temperature-resistant composite insulated wire |
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| Country | Link |
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| CN (1) | CN213988342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113838610A (en) * | 2021-10-11 | 2021-12-24 | 国网河北省电力有限公司邢台供电分公司 | Electromagnetic shielding cable for spanning high-speed railway overhead |
-
2020
- 2020-12-02 CN CN202022861668.9U patent/CN213988342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113838610A (en) * | 2021-10-11 | 2021-12-24 | 国网河北省电力有限公司邢台供电分公司 | Electromagnetic shielding cable for spanning high-speed railway overhead |
| CN113838610B (en) * | 2021-10-11 | 2024-03-19 | 国网河北省电力有限公司邢台供电分公司 | An electromagnetic shielded cable that spans the high-speed railway overhead |
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