CN210182088U - Anti-interference heat-resistant control cable matched with electrical equipment - Google Patents
Anti-interference heat-resistant control cable matched with electrical equipment Download PDFInfo
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- CN210182088U CN210182088U CN201921193415.XU CN201921193415U CN210182088U CN 210182088 U CN210182088 U CN 210182088U CN 201921193415 U CN201921193415 U CN 201921193415U CN 210182088 U CN210182088 U CN 210182088U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The utility model provides a supporting anti-interference heat-resistant type control cable that uses of electrical equipment, its structure is: the conductor coated with the insulating layer forms a wire core; a cable core is formed by twisting a plurality of wire cores and a filling rope; the cable core is coated with a polyester tape layer; a metal shielding layer is coated outside the polyester tape layer; the metal shielding layer is wrapped with a non-woven fabric layer; an outer sheath formed by sheathing materials is extruded outside the non-woven fabric layer; a drainage wire made of bare copper is clamped between the metal shielding layer and the polyester tape layer, and the drainage wire is parallel to the axial direction of the cable; the insulating material of the insulating layer is a polyvinyl chloride insulating material capable of resisting 120 ℃; the nominal thickness range of the insulating layer is 0.7-1.0 mm; the diameter range of the drainage wire is 0.3-0.5 mm; the metal shielding layer is formed by overlapping and wrapping copper strips, and the overlapping rate is not less than 10%; the thickness range of the copper strip is 0.03-0.06 mm; the sheath material is a flame-retardant polyvinyl chloride sheath material capable of resisting the temperature of 120 ℃; the nominal thickness range of the outer sheath is 1.5-2.2 mm.
Description
Technical Field
The utility model relates to a supporting anti-interference heat-resistant type control cable that uses of electrical equipment, in particular to supporting anti-interference heat-resistant type control cable that uses of electrical equipment belongs to cable technical field.
Background
Regional electric wires such as high-voltage switch equipment, an electrical control system and complete set distribution switch equipment are densely arranged, internal working elements are more, heat dissipation is slow, the temperature inside the equipment is always at a higher level, various electric wires and cables are concentrated in narrow space, and transmitted signals are easy to interfere with each other. This puts new demands on the cables used in their equipment. The signal transmission stability of the cable needs to be ensured, and the shielding effect, the flexibility and the high-temperature resistance of the cable need to be considered simultaneously.
Disclosure of Invention
The utility model aims at providing an electrical equipment is supporting with anti-interference heat-resistant type control cable, it not only needs the strict control external diameter, has reliable electrical property, heat resistance and interference killing feature, still has characteristics such as feature of environmental protection, ageing resistance simultaneously. In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a supporting anti-interference heat-resistant type control cable that uses of electrical equipment, its structure is: the conductor coated with the insulating layer forms a wire core; a cable core is formed by twisting a plurality of wire cores and a filling rope;
the cable core is coated with a polyester tape layer; a metal shielding layer is coated outside the polyester tape layer; the metal shielding layer is wrapped with a non-woven fabric layer; the non-woven fabric layer (6) is externally extruded with an outer sheath formed by sheath materials;
a drainage wire made of bare copper is clamped between the metal shielding layer and the polyester tape layer, and the drainage wire is parallel to the axial direction of the cable;
the insulating material of the insulating layer is a polyvinyl chloride insulating material capable of resisting 120 ℃; the nominal thickness range of the insulating layer is 0.7-1.0 mm;
the diameter range of the drainage wire is 0.3-0.5 mm;
the metal shielding layer is formed by overlapping and wrapping copper strips, and the overlapping rate is not less than 10%; the thickness range of the copper strip is 0.03-0.06 mm;
the sheath material is a 120 ℃ temperature resistant flame-retardant polyvinyl chloride sheath material; the nominal thickness range of the outer sheath is 1.5-2.2 mm.
Further, the nominal diameter range of the metal monofilament forming the conductor is phi 0.43 mm-phi 1.70 mm;
the conductor is formed by twisting 7 bare copper monofilaments, and the twisting pitch-diameter ratio is not more than 20 times; or the conductor is formed by stranding 7 tinned copper monofilaments, and the stranding pitch-diameter ratio is not more than 20 times.
The insulating layer is formed by extruding a 120 ℃ resistant polyvinyl chloride insulating material through a thin wall.
The stranding pitch diameter ratio of the cable core is 12-20 times;
the polyester covering belt layer is formed by polyester covering belts which are overlapped and lapped, the nominal thickness of the polyester covering belt is 0.04mm, and the overlapping rate is not less than 50%.
The nominal thickness of the copper strip is 0.05 mm; the nominal diameter of the drainage wire is 0.4 mm.
The non-woven fabric covering layer is composed of loosely wound non-woven fabric belts, the nominal thickness of the non-woven fabric belts is 0.1mm, and the clearance rate is not more than 10%.
The filling rope is a PP filling rope.
The outer sheath is formed by extruding a flame-retardant polyvinyl chloride sheath material capable of resisting the temperature of 120 ℃.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
the conductor adopts a type 2 bare copper conductor or a tinned copper conductor, has higher toughness and is suitable for installation in a narrow area; the insulation is made of a 120 ℃ temperature resistant polyvinyl chloride insulating material, so that the cable has excellent electrical performance and high temperature resistance, is good in ageing resistance, and prolongs the service life of the cable; the cable core is coated with the metal shielding layer and is fully covered by the metal belt, so that the shielding performance of the cable, particularly the drainage wire, is improved, and the signal transmission stability of the cable is further ensured; the polyvinyl chloride outer sheath capable of resisting 120 ℃ improves the high temperature resistance and flame retardant property of the cable, and increases the special properties of low temperature resistance, ultraviolet resistance, mineral oil resistance and the like according to the actual environment, so that the cable has better environmental adaptability and higher safety. The anti-interference heat-resistant control cable matched with the electrical equipment with the structure is mainly used for high-voltage switch equipment, an electrical control system, complete set of distribution switch equipment and the like.
Drawings
Fig. 1 is a schematic view of the radial cross section structure of the present invention.
In the figure: 1. the cable comprises a conductor, 2, an insulating layer, 3, a filling rope, 4, a polyester tape layer, 5, a metal shielding layer, 6, a non-woven fabric layer, 7, an outer protective layer, 8, a wire core, 9, a cable core, 10 and a drainage wire.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a supporting anti-interference heat-resistant type control cable that uses of electrical equipment, its characterized by structure is: a conductor 1 coated with an insulating layer 2 forms a wire core 8; a cable core 9 is formed by twisting a plurality of wire cores 8 and the filling ropes 3;
the cable core 9 is coated with a polyester tape layer 4; a metal shielding layer 5 is coated outside the polyester tape layer 4; the metal shielding layer 5 is externally coated with a non-woven fabric layer 6; an outer sheath 7 formed by sheathing materials is extruded outside the non-woven fabric layer 6;
a drainage wire 10 made of bare copper is clamped between the metal shielding layer 5 and the polyester tape layer 4, and the drainage wire is parallel to the axial direction of the cable;
the insulating material of the insulating layer 2 is a polyvinyl chloride insulating material capable of resisting 120 ℃; the nominal thickness range of the insulating layer is 0.7-1.0 mm;
the diameter range of the drainage wire is 0.3-0.5 mm;
the metal shielding layer is formed by overlapping and wrapping copper strips, and the overlapping rate is not less than 10%; the thickness range of the copper strip is 0.03-0.06 mm;
the sheath material is a 120 ℃ temperature resistant flame-retardant polyvinyl chloride sheath material; the nominal thickness range of the outer sheath is 1.5-2.2 mm.
The nominal diameter range of the metal monofilament forming the conductor is phi 0.43 mm-phi 1.70 mm;
the conductor is formed by twisting 7 bare copper monofilaments, and the twisting pitch-diameter ratio is not more than 20 times; or the conductor is formed by stranding 7 tinned copper monofilaments, and the stranding pitch-diameter ratio is not more than 20 times.
The insulating layer 2 is formed by extruding a 120 ℃ resistant polyvinyl chloride insulating material through a thin wall.
The stranding pitch diameter ratio of the cable core 9 is 12-20 times; the polyester covering belt layer 4 is formed by polyester covering belts which are overlapped and lapped, the nominal thickness of the polyester covering belt is 0.04mm, and the overlapping rate is not less than 50%.
The nominal thickness of the copper strip is 0.05 mm; the nominal diameter of the drainage wire is 0.4 mm.
The non-woven fabric layer 6 is composed of loosely wound non-woven fabric belts, the nominal thickness of the non-woven fabric belts is 0.1mm, and the clearance rate is not more than 10%.
The filling rope is a PP filling rope.
The outer sheath 7 is formed by extruding flame-retardant polyvinyl chloride sheath materials which can resist the temperature of 120 ℃.
Embodiment example as shown in fig. 1, the cable of this example has the following structure: the conductor coated with the insulating layer forms a wire core; a cable core is formed by twisting a plurality of wire cores and a filling rope; the cable core is coated with a polyester tape layer; a metal shielding layer is arranged outside the polyester tape layer; a bare copper wire is longitudinally placed under the metal shielding layer; the metal shielding layer is coated with a non-woven fabric layer, and the non-woven fabric layer is extruded with a sheath material to form an outer sheath; the conductor is a category 2 bare copper soft conductor or a tinned soft copper conductor meeting IEC60228 requirements; the insulating material of the insulating layer is a polyvinyl chloride J-120 insulating material capable of resisting 120 ℃; the nominal thickness range of the insulating layer is 0.7-1.0 mm; the metal shielding layer is formed by lapping and covering copper strips in an overlapping mode, and the covering rate is not less than 10%; the sheath material is a polyvinyl chloride HZ-120 sheath material capable of resisting the temperature of 120 ℃; the nominal thickness range of the sheath is 1.5-2.2 mm. By adopting the structure, the high-temperature resistance and the anti-interference performance are ensured, and the outer diameter is controlled in a smaller range.
In the actual use process, in order to make the best effect, the technical scheme is further provided on the basis of the previous steps: the nominal diameter range of the conductor monofilament is phi 0.43 mm-1.70 mm; the bare copper conductor is formed by stranding 7 bare copper monofilaments, and the stranding pitch-diameter ratio is 18-25 times; or the tinned copper conductor is formed by stranding 7 bare copper monofilaments, and the stranding pitch-diameter ratio is 18-25 times. The stranding pitch diameter ratio of the cable core is 12-20 times; the polyester covering belt layer is formed by polyester covering belts which are overlapped and lapped, the nominal thickness of the polyester covering belt is 0.04mm, and the covering rate is not less than 50% (in order to take account of the thickness and the mechanical property, the covering rate is preferably 54-65%); the metal shielding layer is formed by overlapping and wrapping copper strips, and the covering rate is not less than 10% (in order to give consideration to thickness, flame retardance and mechanical properties, the covering rate is preferably 13-20%). To ensure signal stability, as well as cable mechanical performance and profile rounding, the drain wire is preferably bare copper wire with a nominal diameter of 0.4 mm. The insulating layer adopts a thin-wall extrusion process structure. The filling rope adopts a high-purity PP filling rope. The aforementioned metallic shielding layer preferably has a nominal thickness of 0.05 mm. The outer sheath is preferably a polyvinyl chloride HZ-120 outer sheath capable of resisting the temperature of 120 ℃ and has the characteristics of high temperature resistance, flame retardance and the like.
Upon detection, the cable of this example:
has good wear resistance, and the tensile strength of the sheath is not less than 12.5N/mm2And the elongation at break is not less than 180%.
The insulating material has excellent electrical performance, and the insulating resistance at 90 ℃ is not less than 10M omega-km; the finished product is subjected to a 3000V/5min pressure test, and the cable is not broken down.
Has high anti-interference performance, and the shielding inhibition coefficient of the anti-interference performance is not more than 0.05.
The present invention is not limited to the above embodiments, and all technical solutions formed by equivalent or equivalent replacement fall into the protection scope claimed in the present invention.
Claims (8)
1. The utility model provides a supporting anti-interference heat-resistant type control cable that uses of electrical equipment, its characterized by structure is: a conductor (1) coated with an insulating layer (2) forms a wire core (8); a cable core (9) is formed by twisting a plurality of wire cores (8) and the filling ropes (3);
the cable core (9) is coated with a polyester tape layer (4); a metal shielding layer (5) is coated outside the polyester tape layer (4); the metal shielding layer (5) is wrapped with a non-woven fabric layer (6); an outer sheath (7) formed by sheath materials is extruded outside the non-woven fabric layer (6);
a drainage wire (10) made of bare copper is clamped between the metal shielding layer (5) and the polyester tape layer (4), and the drainage wire is parallel to the axial direction of the cable;
the insulating material of the insulating layer (2) is a polyvinyl chloride insulating material capable of resisting 120 ℃; the nominal thickness range of the insulating layer is 0.7-1.0 mm;
the diameter range of the drainage wire is 0.3-0.5 mm;
the metal shielding layer is formed by overlapping and wrapping copper strips, and the overlapping rate is not less than 10%; the thickness range of the copper strip is 0.03-0.06 mm;
the sheath material is a 120 ℃ temperature resistant flame-retardant polyvinyl chloride sheath material; the nominal thickness range of the outer sheath is 1.5-2.2 mm.
2. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the nominal diameter range of the metal monofilament forming the conductor is phi 0.43 mm-phi 1.70 mm;
the conductor is formed by twisting 7 bare copper monofilaments, and the twisting pitch-diameter ratio is not more than 20 times;
or the conductor is formed by stranding 7 tinned copper monofilaments, and the stranding pitch-diameter ratio is not more than 20 times.
3. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the insulating layer (2) is formed by extruding a 120 ℃ resistant polyvinyl chloride insulating material through a thin wall.
4. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the stranding pitch diameter ratio of the cable core (9) is 12-20 times;
the polyester tape layer (4) is formed by polyester-coated tapes which are lapped and lapped in an overlapping mode, the nominal thickness of the polyester-coated tapes is 0.04mm, and the lapping rate is not less than 50%.
5. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the nominal thickness of the copper strip is 0.05 mm; the nominal diameter of the drainage wire is 0.4 mm.
6. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the non-woven fabric layer (6) is composed of loosely wound non-woven fabric belts, the nominal thickness of the non-woven fabric belts is 0.1mm, and the clearance rate is not more than 10%.
7. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the filling rope is a PP filling rope.
8. The anti-interference heat-resistant control cable matched with the electrical equipment as claimed in claim 1, wherein: the outer sheath (7) is formed by extruding flame-retardant polyvinyl chloride sheath materials which can resist the temperature of 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921193415.XU CN210182088U (en) | 2019-07-26 | 2019-07-26 | Anti-interference heat-resistant control cable matched with electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921193415.XU CN210182088U (en) | 2019-07-26 | 2019-07-26 | Anti-interference heat-resistant control cable matched with electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210182088U true CN210182088U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921193415.XU Active CN210182088U (en) | 2019-07-26 | 2019-07-26 | Anti-interference heat-resistant control cable matched with electrical equipment |
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| Country | Link |
|---|---|
| CN (1) | CN210182088U (en) |
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- 2019-07-26 CN CN201921193415.XU patent/CN210182088U/en active Active
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