CN210667869U - High-salt and high-humidity resistant 0.6/1kV control cable - Google Patents
High-salt and high-humidity resistant 0.6/1kV control cable Download PDFInfo
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- CN210667869U CN210667869U CN201921631131.4U CN201921631131U CN210667869U CN 210667869 U CN210667869 U CN 210667869U CN 201921631131 U CN201921631131 U CN 201921631131U CN 210667869 U CN210667869 U CN 210667869U
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Abstract
A0.6/1 kV control cable resistant to high salt and high humidity has the structure that the outer diameter range of the control cable is 12.0-32.0 mm; the control cable is a cable core formed by twisting a plurality of wire cores and a filling rope; the cable core is sequentially wrapped with a first wrapping layer, a metal shielding layer, a second wrapping layer, an outer sheath and a salt-resistant layer; the wire core is formed by a conductor wrapped with an insulating layer; the conductor is a category 5 tin-plated copper conductor meeting the IEC60228 requirements; the conductor is formed by stranding tin-plated copper monofilaments in multiple layers from inside to outside; the stranding direction of the tinned copper monofilaments on the outermost layer is the left direction, and the stranding direction of the tinned copper monofilaments on the adjacent layer is opposite; the filling rope is a dust-free rock wool rope; the first wrapping layer is formed by wrapping a polyester tape; the metal shielding layer is formed by weaving tinned copper wires; the second wrapping layer is a waterproof layer formed by wrapping the semi-conductive water-blocking tape; the salt-resistant layer is a cable salt-resistant coating, and the thickness of the salt-resistant coating is 1.0-1.3 mm.
Description
Technical Field
The utility model relates to a control cable, in particular to novel high salt resistant high humidity control cable is applicable to rated voltage 0.6/1 kV's control cable, belongs to cable technical field.
Background
At present, control cables laid in coastal areas and high-humidity areas are in danger of being corroded and damped to further influence service performance. The main reason is that under the influence of high salinity and high humidity, the outer surface of the cable cracks due to corrosion and moisture, so that the cable cannot be used due to damage.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses control cable is on improving the basis of traditional control cable shape structure simultaneously, has used specific material and structural parameter in order to reach the purpose that uses under adaptation high salt, the high wet condition to can be suitable for and select the use under civilian, for military use environment.
To high salt, high humid environment condition, the utility model discloses the problem that the cable need be solved mainly has: on the premise of meeting the electrical property of the control cable, the salt resistance and the moisture resistance of the cable are enhanced.
The technical scheme adopted for solving the technical problems is as follows:
a0.6/1 kV control cable resistant to high salt and high humidity has the structure that: the outer diameter range of the control cable is 12.0-32.0 mm; the control cable is a cable core formed by twisting a plurality of wire cores and a filling rope; the cable core is sequentially wrapped with a first wrapping layer, a metal shielding layer, a second wrapping layer, an outer sheath and a salt-resistant layer; the stranding pitch diameter ratio of the cable core is 12-16 times;
the wire core is formed by a conductor wrapped with an insulating layer; the conductor is a category 5 tin-plated copper conductor meeting IEC60228 requirements; the conductor is formed by stranding tin-plated copper monofilaments in multiple layers from inside to outside; the stranding direction of the tinned copper monofilaments on the outermost layer is the left direction, and the stranding direction of the tinned copper monofilaments on the adjacent layer is opposite;
the nominal thickness of the insulating layer is 0.62-0.78 mm, and the thickness of the thinnest point is not less than 90-0.1 mm of the nominal value;
the filling is a dust-free rock wool rope;
the first wrapping layer is formed by wrapping a polyester tape;
the metal shielding layer is formed by weaving tinned copper wires, and the weaving density is not less than 80%;
the second wrapping layer is a waterproof layer formed by wrapping a semi-conductive water-blocking tape;
the outer sheath is made of flame-retardant polyethylene sheath material; the nominal thickness of the outer sheath is 1.80-2.5 mm;
the salt-resistant layer is a cable salt-resistant coating, and the thickness of the salt-resistant coating is 1.0-1.3 mm.
The cross-sectional area of the conductor is 2.5mm2～6mm2(ii) a The stranding pitch diameter ratio of the tinned copper monofilaments on the innermost layer of the conductor ranges from 12 to 18, and the stranding pitch diameter ratio of the tinned copper monofilaments on the outermost layer of the conductor ranges from 10 to 14.
The insulating layer is made of cross-linked polyethylene insulating material; the nominal thickness of the insulating layer is 0.7 mm.
The packing rope is dust-free rock wool rope, and the diameter of dust-free rock wool rope is 1.8 ~ 2.5 mm.
The nominal thickness of the polyester tape of the first wrapping layer is 0.04mm, and the width of the lapping cover is not less than 5 mm.
The metal shielding layer is formed by weaving tinned copper wires with the nominal diameter of 0.20-0.25 mm.
The nominal thickness of the semi-conductive water-blocking tape of the second wrapping layer is 0.3mm, and the wrapping covering rate is not less than 15%.
In order to achieve the high-salt resistance, the cable is coated with a salt-resistant coating outside the sheath of the cable. However, the salt-resistant coating has many adverse effects on the cable, such as: the bending radius of the cable is reduced, and the coating falls off when the cable is repeatedly bent; in a continuous high temperature environment or after a fire, the coating expands, the protective effect is reduced, the waterproof performance is reduced, and the coating is more easily peeled off in a bending condition, and the like.
In order to overcome the adverse effect, the cable product can meet the requirements of the cable on the function and the performance, the cable adopts the specific structure and achieves the following beneficial effects:
(1) the stranded 5-class tin-plated copper conductor is adopted, so that the conductivity of the conductor is improved, the flexibility of the conductor is improved, the conductor is easier to bend, the conductor is suitable for being installed in a narrow area, the tin-plated copper conductor is more corrosion-resistant, and copper oxidation (CuO and Cu generated by the reaction of copper and oxygen in the air) can be reduced2O) occurs.
(2) The braided electromagnetic shielding layer can effectively avoid the influence of external signals and electric fields on the transmission of control signals, and the braided shielding form is more favorable for the bending and the recovery of the cable. The use of the tinned copper wire can obviously enhance the salt corrosion resistance of the metal shielding layer and prolong the service life of the cable.
(3) The layer of the semi-conductive water-blocking tape wrapped outside the shield can obviously improve the radial waterproof performance of the cable. In a high-humidity area, the performance of the cable can be prevented from being affected by the intrusion of moisture.
(4) A salt-resistant layer is coated outside the sheath, so that the salt-resistant effect is achieved, and the waterproof and flame-retardant performances of the cable are effectively improved.
The cable has good waterproof and salt corrosion resistant performances, and can normally work under the conditions of humid environment and high salinity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. conductor, 2, insulating layer, 3, first around the covering, 4, second around the covering, 5, metallic shield layer, 6, packing rope, 7, oversheath, 8, salt-resistant layer.
Detailed Description
The following describes a high-salt and high-humidity resistant control cable according to this embodiment with reference to the accompanying drawings and specific examples.
For example, as shown in fig. 1, a high-salt and high-humidity resistant 0.6/1kV control cable has the structure: the outer diameter range of the control cable is 12.0-32.0 mm; the control cable is a cable core formed by twisting a plurality of wire cores and a filling rope; the cable core is sequentially wrapped with a first wrapping layer, a metal shielding layer, a second wrapping layer, an outer sheath and a salt-resistant layer; the stranding pitch diameter ratio of the cable core is 12-16 times;
the wire core is formed by a conductor wrapped with an insulating layer; the conductor is a category 5 tin-plated copper conductor meeting IEC60228 requirements; the conductor is formed by stranding tin-plated copper monofilaments in multiple layers from inside to outside; the stranding direction of the tinned copper monofilaments on the outermost layer is the left direction, and the stranding direction of the tinned copper monofilaments on the adjacent layer is opposite;
the nominal thickness of the insulating layer is 0.62-0.78 mm, and the thickness of the thinnest point is not less than 90-0.1 mm of the nominal value;
the filling is a dust-free rock wool rope;
the first wrapping layer is formed by wrapping a polyester tape;
the metal shielding layer is formed by weaving tinned copper wires, and the weaving density is not less than 80%;
the second wrapping layer is a waterproof layer formed by wrapping a semi-conductive water-blocking tape;
the outer sheath is made of flame-retardant polyethylene sheath material; the nominal thickness of the outer sheath is 1.80-2.5 mm;
the salt-resistant layer is a cable salt-resistant coating, and the thickness of the salt-resistant coating is 1.0-1.3 mm.
In this example:
the cross-sectional area of the conductor is 2.5mm2～6mm2(ii) a The stranding pitch diameter ratio of the tinned copper monofilaments on the innermost layer of the conductor ranges from 12 to 18, and the stranding pitch diameter ratio of the tinned copper monofilaments on the outermost layer of the conductor ranges from 10 to 14.
The insulating layer is made of cross-linked polyethylene insulating material; the nominal thickness of the insulating layer is 0.7 mm.
The packing rope is dust-free rock wool rope, and the diameter of dust-free rock wool rope is 1.8 ~ 2.5 mm.
The nominal thickness of the polyester tape of the first wrapping layer is 0.04mm, and the width of the lapping cover is not less than 5 mm.
The metal shielding layer is formed by weaving tinned copper wires with the nominal diameter of 0.20-0.25 mm.
The nominal thickness of the semi-conductive water-blocking tape of the second wrapping layer is 0.3mm, and the wrapping covering rate is not less than 15%.
The salt corrosion resistance of the shield can be obviously enhanced by using specific tinned copper wires and shielding parameters. The dust-free rock wool rope is tightly filled in the middle of the cable core in the cabling process, and plays a role in improving the roundness and the flame retardant property of the cable.
In the embodiment, the salt-resistant layer is made of G60-3D fireproof paint (Gallery Peng super fireproof material, Inc., Peng super G60-3D cable fireproof paint), has salt and moisture resistance and excellent flame retardant performance, and expands when encountering fire to generate a uniform and compact honeycomb heat-insulating layer, so that the cable can be effectively prevented from being ignited and delayed. After the test is passed, a cable sample is immersed in water for 3m, and after the cable sample is immersed for 72 hours, the coating does not wrinkle and peel.
Through detecting this cable:
has excellent softness, the bending radius is not less than 8D (D is the diameter of the cable), and the mechanical properties of the insulation and the sheath meet the relevant requirements of tables 15 and 18 in GB/T12706-2008.
The anti-interference performance is good, and the shielding inhibition coefficient is not more than 0.05.
The cable has excellent electrical performance, 3.5kV alternating current voltage is applied between the core and the shielding, 2.5kV alternating current voltage is applied between the core and the shielding, the test lasts for 5min, and the cable is not broken down.
The waterproof coating has good waterproof performance, the outer sheath of the waterproof coating is soaked in water for 336h at 85 ℃, the maximum weight increase is not more than 2mg/cm2, and the waterproof coating passes GB/T12706.2-2008 appendix F water penetration test.
The cable has good flame retardant property, and the carbonization height of the cable is not more than 1.5m according to GB/T18380 flame retardant B type bundled combustion test.
The cable has excellent acid resistance, alkali resistance and corrosion resistance, and the finished cable passes anaerobic bacterial corrosion tests specified in GB/T2951.25-1994.
Claims (8)
1. A0.6/1 kV control cable resistant to high salt and high humidity is characterized in that the structure is as follows:
the outer diameter range of the control cable is 12.0-32.0 mm;
the control cable is a cable core formed by twisting a plurality of wire cores and a filling rope; the cable core is sequentially wrapped with a first wrapping layer, a metal shielding layer, a second wrapping layer, an outer sheath and a salt-resistant layer; the stranding pitch diameter ratio of the cable core is 12-16 times;
the wire core is formed by a conductor wrapped with an insulating layer; the conductor is a category 5 tin-plated copper conductor meeting IEC60228 requirements; the conductor is formed by stranding tin-plated copper monofilaments in multiple layers from inside to outside; the stranding direction of the tinned copper monofilaments on the outermost layer is the left direction, and the stranding direction of the tinned copper monofilaments on the adjacent layer is opposite;
the nominal thickness of the insulating layer is 0.62-0.78 mm, and the thickness of the thinnest point is not less than 90-0.1 mm of the nominal value;
the filling rope is a dust-free rock wool rope;
the first wrapping layer is formed by wrapping a polyester tape;
the metal shielding layer is formed by weaving tinned copper wires, and the weaving density is not less than 80%;
the second wrapping layer is a waterproof layer formed by wrapping a semi-conductive water-blocking tape;
the nominal thickness of the outer sheath is 1.80-2.5 mm;
the salt-resistant layer is a cable salt-resistant coating, and the thickness of the salt-resistant coating is 1.0-1.3 mm.
2. The high salt and high humidity resistant 0.6/1kV control cable according to claim 1, wherein the cross-sectional area of the conductor is 2.5mm2～6mm2(ii) a The stranding pitch diameter ratio of the tinned copper monofilaments on the innermost layer of the conductor ranges from 12 to 18, and the stranding pitch diameter ratio of the tinned copper monofilaments on the outermost layer of the conductor ranges from 10 to 14.
3. The high salt and high humidity resistant 0.6/1kV control cable according to claim 1, wherein the insulation layer is made of crosslinked polyethylene; the nominal thickness of the insulating layer is 0.7 mm.
4. The high salt and high humidity resistant 0.6/1kV control cable as claimed in claim 1, wherein the filler rope is a dust-free rock wool rope, and the diameter of the dust-free rock wool rope is 1.8-2.5 mm.
5. The high salt and high humidity resistant 0.6/1kV control cable according to claim 1, wherein the polyester tape of the first wrapping layer has a nominal thickness of 0.04mm and a cover width of not less than 5 mm.
6. The high salt and high humidity resistant 0.6/1kV control cable according to claim 1, wherein the metal shielding layer is formed by weaving tinned copper wires with a nominal diameter of 0.20-0.25 mm.
7. The high-salt high-humidity resistant 0.6/1kV control cable according to claim 1, wherein the nominal thickness of the semiconductive water-blocking tape of the second wrapping layer is 0.3mm, and the wrapping coverage rate is not less than 15%.
8. The high salt and high humidity resistant 0.6/1kV control cable of claim 1, wherein the outer sheath is made of flame retardant polyethylene sheath material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631131.4U CN210667869U (en) | 2019-09-27 | 2019-09-27 | High-salt and high-humidity resistant 0.6/1kV control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631131.4U CN210667869U (en) | 2019-09-27 | 2019-09-27 | High-salt and high-humidity resistant 0.6/1kV control cable |
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| Publication Number | Publication Date |
|---|---|
| CN210667869U true CN210667869U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921631131.4U Active CN210667869U (en) | 2019-09-27 | 2019-09-27 | High-salt and high-humidity resistant 0.6/1kV control cable |
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| CN (1) | CN210667869U (en) |
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