CN210692149U - Be used for rural power grids compound cable of entrying one's residence - Google Patents
Be used for rural power grids compound cable of entrying one's residence Download PDFInfo
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- CN210692149U CN210692149U CN201921975525.1U CN201921975525U CN210692149U CN 210692149 U CN210692149 U CN 210692149U CN 201921975525 U CN201921975525 U CN 201921975525U CN 210692149 U CN210692149 U CN 210692149U
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Abstract
The utility model provides a composite house-entry cable for rural power grids, which comprises a double-core insulated cable and a super six types of shielding type net wires which are arranged in parallel with the double-core insulated cable, wherein a metal protective layer is jointly extruded outside the double-core insulated cable and the super six types of shielding type net wires, and the inner diameter of the metal protective layer is more than or equal to the sum of the outer diameter of the double-core insulated cable and the outer diameter of the super six types of shielding type net wires; the double-core insulated cable comprises two insulated wire cores twisted in pairs, wherein an environment-friendly flame-retardant halogen-free filler is filled in a gap between the two insulated wire cores, then a composite demagnetizing shielding layer is wrapped around the gap, non-woven fabric with enhanced adhesive force is wrapped outside the composite demagnetizing shielding layer, and then a 125 ℃ ultraviolet-proof anti-aging halogen-free flame-retardant sheath is extruded; the composite demagnetizing shielding layer is composed of a polyester film and a copper-plastic composite belt which are wrapped at the inner layer and a metal braid which is formed by weaving a plurality of copper wires with the diameter of 0.20mm at the outer layer. The utility model discloses an improve cable structure, make this cable environmental protection high fire-retardant, ageing resistance, lay with low costs, prevent the mouse damage, possess transmission electric energy and transmission signal simultaneously, reached good economic benefits.
Description
Technical Field
The utility model relates to a wire and cable field specifically is a be used for compound house-service cable of rural power grids.
Background
With the continuous development of rural economy, the living standard is continuously improved, high-power household appliances are widely popularized, and particularly, seasonal power consumption is increased year after year, so that the rural power consumption load is continuously increased. The service life of the service wire is long, the problems of thin wire diameter, serious aging and the like exist, the power utilization failure is caused, or fire disasters and the like are caused, and the power utilization quality of rural users is seriously influenced. Meanwhile, rural population is dense, houses are built next to each other, fire fighting passages do not exist among the houses, the field is seriously damaged by rats, and safe electricity utilization is not neglected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's problem, provide an environmental protection, high fire-retardant, ageing resistance, lay with low costs, prevent the mouse damage, possess the compound house-entry cable of multipurpose rural power grids of transmission electric energy and transmission signal simultaneously.
The utility model discloses a be used for rural power grids to compound cable of entering one's residence, including two core insulation cables and the super six types of shielding type net twine of placing with two core insulation cables parallel, crowded package metal inoxidizing coating jointly outside two core insulation cables and super six types of shielding type net twine, the internal diameter of this metal inoxidizing coating more than or equal to two core insulation cables's external diameter adds the external diameter of super six types of shielding type net twine and sums up; the double-core insulated cable comprises two insulated wire cores twisted in pairs, wherein an environment-friendly flame-retardant halogen-free filler is filled in a gap between the two insulated wire cores, then a composite demagnetizing shielding layer is wrapped around the gap, non-woven fabric with enhanced adhesive force is wrapped outside the composite demagnetizing shielding layer, and then a 125 ℃ ultraviolet-proof anti-aging halogen-free flame-retardant sheath is extruded; the composite demagnetizing shielding layer is composed of a wrapping layer formed by compounding a polyester film and a copper-plastic composite belt on the inner layer and a metal braided layer formed by braiding a plurality of copper wires with the diameter of 0.20mm on the outer layer.
Preferably, the insulated wire core is composed of a conductor and an anti-ultraviolet anti-aging low-smoke halogen-free insulated layer which is extruded outside the conductor and has the thickness of 0.8 mm.
Preferably, the conductor is formed by twisting 7 pieces of 63% IACS high-conductivity aluminum alloy wires with the diameter of 1.76mm, and the cross section of the conductor is 16mm2。
Preferably, the metal protective layer is formed by interlocking and armoring aluminum alloy belts with the thickness of 0.4 mm.
The utility model has the advantages that:
1. by improving the conductor material, a high-conductivity aluminum wire with the conductivity of 63% IACS is manufactured by adopting a high-purity AL99.90 aluminum ingot, and compared with a common aluminum wire, the high-conductivity aluminum wire has the same or equivalent electrical and mechanical properties and the conductivity is improved; the cost is low, more economical, light in weight and low in laying cost.
2. The insulating layer is composed of an anti-ultraviolet anti-aging low-smoke halogen-free insulating layer, and an ultraviolet absorbent and a light shielding agent are added into the material to improve the UV performance, so that the insulating layer further enhances the anti-aging performance and the cold resistance while keeping the original softness and mechanical property, and is suitable for various complex environments.
3. By using the polyester film, the copper-plastic composite belt and the metal weaving composite mode, the electromagnetic interference resistance is enhanced, the shielding of surface potential is eliminated, and the shielding effect of safety protection is also achieved.
4. The sheath layer adopts a 125 ℃ ultraviolet-proof anti-aging halogen-free flame-retardant sheath, does not contain six heavy metals of Pb, Ba, Cd, Cr, Sn and Sb, can meet the standard requirement of RoHS in various performances, has good physical and mechanical properties, flame retardance, environmental protection performance and ultraviolet resistance, can resist the temperature of-40-90 ℃ and is suitable for various environments.
5. Through the adoption of the mode that the aluminum tape interlocking armor is added into the ultra-six types of shielding type network cables, the installation efficiency is improved, the construction difficulty is reduced, the cable is light in weight and easy to bend, the cable is not limited to 360-degree bending, only a cable clamping end and a cable hanging bracket are needed during indoor installation, a cable bridge, a tray and a pipeline are not needed to be laid, the bearing weight of a cable attached to a building or equipment can be reduced, the cost can be saved by more than 40%, the requirement for simultaneously transmitting electric energy and signals can be met, rat damage can be prevented, and the flame retardant grade of the cable can be effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, a composite house lead-in cable for rural power grids comprises a dual-core insulated cable and a super-six type shielding type network cable 7 arranged in parallel with the dual-core insulated cable, wherein a metal protective layer 8 is extruded outside the dual-core insulated cable and the super-six type shielding type network cable together, and the inner diameter of the metal protective layer is greater than or equal to the sum of the outer diameter of the dual-core insulated cable and the outer diameter of the super-six type shielding type network cable; the double-core insulated cable comprises two insulated wire cores twisted in pairs, wherein each insulated wire core consists of a conductor 1 and an anti-ultraviolet anti-aging low-smoke halogen-free insulating layer 2 which is extruded outside the conductor and has the thickness of 0.8 mm; the environment-friendly flame-retardant halogen-free filler 9 is filled in the gap between the two insulated wire cores, then the composite demagnetizing shielding layer is wrapped, the non-woven fabric 5 with enhanced adhesive force is wrapped outside the composite demagnetizing shielding layer, and then the ultraviolet-proof anti-aging halogen-free flame-retardant sheath 6 with the temperature of 125 ℃ is extruded, does not contain six heavy metals of Pb, Ba, Cd, Cr, Sn and Sb, has various performances which can meet the standard requirement of RoHS, has good physical and mechanical properties and flame retardant properties, can meet the requirements of termite resistance and ultraviolet resistance, can resist the temperature of-40-90 ℃, and can adapt to various environments; the composite demagnetizing shielding layer is composed of a wrapping layer 3 formed by compounding a polyester film and a copper-plastic composite belt on the inner layer and a metal braided layer 4 formed by braiding a plurality of copper wires with the diameter of 0.20mm on the outer layer.
Example 1:
the conductor of the cable is stranded with 7 aluminum alloy wires with high conductivity of 63% IACS (International Annealed copper-aluminum composite) and the diameter of which is 1.76mm by a 500-type bow stranding machine to be stranded into a specification of 16mm2The conductor of (1); extruding a layer of anti-ultraviolet environment-friendly halogen-free low-smoke insulation with the thickness of 0.8mm by using a 65-type plastic extruding machine to manufacture an insulation wire core; stranding two insulated wire cores to form a cable, and lapping and reinforcing the cable by using a polyester film and a copper-plastic composite tape; after the cable is wrapped, a copper wire with the diameter of 0.20mm is adopted for weaving shielding, the weaving density is between 80% and 90%, a layer of non-woven fabric is wrapped, a 125 ℃ ultraviolet-proof anti-aging halogen-free flame-retardant sheath with the thickness of 1.5mm is extruded, 0.4mm aluminum alloy tape interlocking armor is adopted on the outermost layer, a super-six shielding type network wire is placed in the same direction while armored, the mode that the aluminum tape interlocking armor is adopted and the super-six shielding type network wire is added is adopted, the installation efficiency is improved, the construction difficulty is reduced, the cable is light in weight and easy to bend, the cable is not limited to 360-degree bending, only a cable clamping end and a cable hanging bracket are needed during indoor installation, a cable bridge, a tray and a pipeline are not needed to be laid, the bearing weight of a cable attached building or equipment can be reduced, the cost can be saved by more than 40%, and. This cable passes through combustion test: after the fire supplying time is 45min, the coking height is not more than 2 m, the rest time is not more than 50min, and the performance parameters are higher than the requirements of the standard GB/T18380.3; the product completely meets the requirements of rural power grid composite home-entry cables on water resistance, fire resistance, ultraviolet light resistance, animal invasion resistance, environmental protection, low laying cost, good anti-interference performance and the like, and simultaneously has the multi-purpose rural power grid composite home-entry cable for transmitting electric energy and signals.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (4)
1. The utility model provides a be used for compound house lead-in cable of rural power grids which characterized in that: the cable comprises a double-core insulated cable and a super-six types of shielding type network cables which are arranged in parallel with the double-core insulated cable, wherein a metal protective layer is extruded outside the double-core insulated cable and the super-six types of shielding type network cables together, and the inner diameter of the metal protective layer is more than or equal to the sum of the outer diameter of the double-core insulated cable and the outer diameter of the super-six types of shielding type network cables; the double-core insulated cable comprises two insulated wire cores twisted in pairs, wherein an environment-friendly flame-retardant halogen-free filler is filled in a gap between the two insulated wire cores, then a composite demagnetizing shielding layer is wrapped around the gap, non-woven fabric with enhanced adhesive force is wrapped outside the composite demagnetizing shielding layer, and then a 125 ℃ ultraviolet-proof anti-aging halogen-free flame-retardant sheath is extruded; the composite demagnetizing shielding layer is composed of a wrapping layer formed by compounding a polyester film and a copper-plastic composite belt on the inner layer and a metal braided layer formed by braiding a plurality of copper wires with the diameter of 0.20mm on the outer layer.
2. The rural power grid composite house lead-in cable according to claim 1, wherein: the insulating core constitute by conductor and crowded package outside the conductor ultraviolet protection ageing resistance low smoke and zero halogen insulating layer that thickness is 0.8 mm.
3. The rural power grid composite house lead-in cable according to claim 2, wherein: the conductor is formed by twisting 7 63% IACS high-conductivity aluminum alloy wires with the diameter of 1.76mm, and the cross section of the conductor is 16mm2。
4. The rural power grid composite house lead-in cable according to claim 1, wherein: the metal protective layer is formed by interlocking and armoring aluminum alloy belts with the thickness of 0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975525.1U CN210692149U (en) | 2019-11-15 | 2019-11-15 | Be used for rural power grids compound cable of entrying one's residence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921975525.1U CN210692149U (en) | 2019-11-15 | 2019-11-15 | Be used for rural power grids compound cable of entrying one's residence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210692149U true CN210692149U (en) | 2020-06-05 |
Family
ID=70901872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921975525.1U Active CN210692149U (en) | 2019-11-15 | 2019-11-15 | Be used for rural power grids compound cable of entrying one's residence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210692149U (en) |
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2019
- 2019-11-15 CN CN201921975525.1U patent/CN210692149U/en active Active
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