CN204215789U - The multicore that a kind of middle its central band controls cable core blocks water composite cable - Google Patents
The multicore that a kind of middle its central band controls cable core blocks water composite cable Download PDFInfo
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- CN204215789U CN204215789U CN201420718182.1U CN201420718182U CN204215789U CN 204215789 U CN204215789 U CN 204215789U CN 201420718182 U CN201420718182 U CN 201420718182U CN 204215789 U CN204215789 U CN 204215789U
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Abstract
The utility model discloses multicore that a kind of middle its central band controls cable core to block water composite cable, comprise and tighten layer (1) and cable core (2).Described layer (1) of tightening is arranged on cable core (2) outward; Described cable core (2) is made up of several wire core (21) and the circular cable core (22) that controls, and the circular cable core (22) that controls is positioned at center; Core (21) is by round conductor (211) and be extruded in round conductor (211) extruded insulation layer (212) outward and form.The multicore that middle its central band of the present utility model controls cable core blocks water composite cable, with control cable core, can simultaneously transferring electric power and control signal, power cable core is corrugated structure, and control compact conformation between cable core, do not need between core to use the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder, reduce production cost, block-water performance is reliable.Conductor adopts circle to press structure, and technology difficulty is little and can not Damage to insulation layer.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, and the multicore that particularly a kind of middle its central band controls cable core blocks water composite cable.
Background technology
The intrusion of moisture often power cable suffer to destroy, useful life affected main cause.Moisture immerses approach and mainly invades cable from the sheath of cable and the end of cable, causes the oxidation of conductor, corrosion, thus affects the electrical property of cable, even abnormal broken line accident occurs; Moisture infiltrates insulating barrier, and under the effect of highfield, insulating barrier can produce " water tree ", accelerates the voltage ageing of cable, causes cable breakdown accident, reduces cable useful life.In order to prevent the intrusion of moisture, require between each structure of cable closely very close to each other.
Prior art, in order to prevent the intrusion of moisture, multicore cable is generally many circular cores twisted synthesizing cable together with waterproofing rope or water blocking yarn, wrapped waterstop between primary structure, adopt the method for the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder of arranging between each structure of cable, a large amount of hydrophilic radical that material water-proof material contains, will imbibition with water short-time contact, can absorb and conduct oneself with dignity into hundred times even water of thousandfold, there is fabulous water-retaining property.This method one is that the use of a large amount of material water-proof material can increase production cost, and two is the modes by water conservation, is absorbing the part of moisture, and moisture still can damage conductor or infiltrate insulating barrier.In order to improve the block-water performance of cable, also usually use corrugated conductor in prior art, extruded insulation forms stranding after corrugated core, and gap between core can be made to drop to minimum, but and gap between sheath still exist.Especially there is an a lot of difficult problem and drawback in process of production in the processing of corrugated conductor: one is that technology difficulty is large, in order to meet the enough flexibilities of corrugated conductor and stability, all higher to the characteristic requirements of the design of conductor structure, moulds of industrial equipment, equipment; Two is want conductor to adopt compact conductor for preventing moisture from infiltrating, and to improve the activity coefficient of wire, reduced outside diameter, reduces gap between conductor, and corrugated conductor to be corrugated press, the shape of every layer is different, the difficulty increase of pressing; Three is easily cause electric field to concentrate in each angle course of processing of corrugated conductor and damage cable insulation.
Along with the universal of computer technology and the develop rapidly of information industry, Intellectual district has become the development trend of modern architecture, by the comprehensive wiring system that is made up of composite cable etc. the communication in intelligent construction, computer and various equipment and facility, include comprehensive wiring system under certain conditions, be interconnected to form complete supporting entirety, to realize highly intelligentized requirement.Therefore power cable and control cables is often required to carry out compound.
Utility model content
The utility model is overcome the shortcoming that prior art exists, and provides a kind of compact conformation, cost is low, technology difficulty is low, block-water performance is good, can to block water composite cable by the middle its central band of simultaneously transferring electric power and the control signal multicore that controls cable core.
The multicore that middle its central band of the present utility model controls cable core blocks water composite cable, comprises and tightens layer and cable core.Described layer of tightening is arranged on outside cable core; Described cable core is made up of several wire core and the circular cable core that controls, and the circular cable core that controls is positioned at center; Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
As the further improvement of technique scheme, described circle controls cable core and is lay configuration or is extruded with circular sheath.
Another kind as technique scheme improves, and described circle controls to arrange one deck or multi-protective layer between cable core and circular sheath, and described protection sheath is armour and/or screen.
Another kind as technique scheme improves, and described round conductor is round compacted comductor or presses circular molded line conductor.
Another kind as technique scheme improves, and described extruded insulation layer is circular or corrugated sheath.
Another kind as technique scheme improves, and arranges one deck or multi-protective layer between described round conductor and extruded insulation layer, and described protection sheath is armour and/or screen.
Another kind as technique scheme improves, described in tighten layer and be wrapped, vertical bag, weave or extrude.
Another kind as technique scheme improves, described in tighten layer for braiding, braid is coated with pitch.
The multicore that middle its central band of the present utility model controls cable core blocks water composite cable, with control cable core, can simultaneously transferring electric power and control signal, power cable core is corrugated structure, and control compact conformation between cable core, do not need between core to use the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder, reduce production cost, block-water performance is reliable.Conductor adopts circle to press structure, and technology difficulty is little and can not Damage to insulation layer.
Accompanying drawing explanation
Fig. 1 is that multicore that the middle its central band of embodiment one controls cable core blocks water composite cable structural representation;
Fig. 2 is that multicore that the middle its central band of embodiment two controls cable core blocks water composite cable structural representation;
Fig. 3 is that multicore that the middle its central band of embodiment three controls cable core blocks water composite cable structural representation.
Embodiment
Below in conjunction with accompanying drawing, the multicore of the cable core composite cable that blocks water is controlled to its central band in a kind of band that the utility model proposes and is described in detail.
Embodiment one
As shown in Figure 1, a kind of multicore water repellent electric cable with wire core of the present embodiment comprises and tightens layer 1 and cable core 2.Described layer 1 of tightening is arranged on outside cable core 2; Described cable core 2 is made up of 3 cores 21 and the circular cable core 22 that controls, and the circular cable core 22 that controls is positioned at center; Core 21 is made up of round conductor 211 and the extruded insulation layer 212 be extruded in outside round conductor 211.
Described circle control cable core 22 is for lay configuration or be extruded with circular sheath.
Described round conductor 211 is for round compacted comductor or press circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer 212 is circular or corrugated sheath.Circular.
Described layer 1 of tightening is wrapped, vertical bag, weaves or extrude, and is preferably braiding, braid is coated with pitch.
Embodiment two
As shown in Figure 2, a kind of multicore water repellent electric cable with wire core of the present embodiment, a kind of multicore water repellent electric cable with wire core of the present embodiment comprises tightens layer and cable core.Described layer of tightening is arranged on outside cable core; Described cable core is made up of 4 cores and the circular cable core that controls, and the circular cable core that controls is positioned at center; Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
Described circle controls cable core and is lay configuration or is extruded with circular sheath.
Described circle controls to arrange one deck or multi-protective layer between cable core and circular sheath, and described protection sheath is armour and/or screen.
Described round conductor is round compacted comductor or presses circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer is circular or corrugated sheath.Circular.
Arrange one deck or multi-protective layer between described round conductor and extruded insulation layer, described protection sheath is armour and/or screen.
Described layer of tightening is wrapped, vertical bag, weaves or extrude, and is preferably braiding, braid is coated with pitch.
Embodiment three
As shown in Figure 3, a kind of multicore water repellent electric cable with wire core of the present embodiment, a kind of multicore water repellent electric cable with wire core of the present embodiment comprises tightens layer and cable core.Described layer of tightening is arranged on outside cable core; Described cable core is by 5 cores and circular control cable core, and the circular cable core that controls is positioned at center; Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
Described circle controls cable core and is lay configuration or is extruded with circular sheath.
Described circle controls to arrange one deck or multi-protective layer between cable core and circular sheath, and described protection sheath is armour and/or screen.
Described round conductor is round compacted comductor or presses circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer is circular or corrugated sheath.Circular.
Arrange one deck or multi-protective layer between described round conductor and extruded insulation layer, described protection sheath is armour and/or screen.
Described layer of tightening is wrapped, vertical bag, weaves or extrude, and is preferably braiding, braid is coated with pitch.
Claims (8)
1. in, its central band controls the multicore of cable core and to block water a composite cable, comprises and tightens layer (1) and cable core (2), it is characterized in that: described in tighten layer (1) and be arranged on cable core (2) outward; Described cable core (2) is made up of several wire core (21) and the circular cable core (22) that controls, and the circular cable core (22) that controls is positioned at center; Core (21) is by round conductor (211) and be extruded in round conductor (211) extruded insulation layer (212) outward and form.
2. the multicore that middle its central band according to claim 1 controls cable core blocks water composite cable, it is characterized in that: described circle controls cable core (22) for lay configuration or be extruded with circular sheath.
3. the multicore that middle its central band according to claim 2 controls cable core blocks water composite cable, it is characterized in that: described circle controls to arrange one deck or multi-protective layer between cable core (22) and circular sheath, and described protection sheath is armour and/or screen.
4. the multicore that middle its central band according to claim 1 controls cable core blocks water composite cable, it is characterized in that: described round conductor (211) is for round compacted comductor or press circular molded line conductor.
5. the multicore that middle its central band according to claim 1 controls cable core blocks water composite cable, it is characterized in that: described extruded insulation layer (212) is circular or corrugated sheath.
6. the multicore that middle its central band according to claim 2 controls cable core blocks water composite cable; it is characterized in that: arrange one deck or multi-protective layer between described round conductor (211) and extruded insulation layer (212), described protection sheath is armour and/or screen.
7. the multicore that middle its central band according to claim 1 controls cable core blocks water composite cable, it is characterized in that: described in tighten layer (1) and be wrapped, vertical bag, weave or extrude.
8. the multicore that middle its central band according to claim 1 controls cable core blocks water composite cable, is characterised in that: described in tighten layer (1) for braiding, braid is coated with pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718182.1U CN204215789U (en) | 2014-11-26 | 2014-11-26 | The multicore that a kind of middle its central band controls cable core blocks water composite cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718182.1U CN204215789U (en) | 2014-11-26 | 2014-11-26 | The multicore that a kind of middle its central band controls cable core blocks water composite cable |
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| Publication Number | Publication Date |
|---|---|
| CN204215789U true CN204215789U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420718182.1U Active CN204215789U (en) | 2014-11-26 | 2014-11-26 | The multicore that a kind of middle its central band controls cable core blocks water composite cable |
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| CN (1) | CN204215789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392792A (en) * | 2014-11-26 | 2015-03-04 | 无锡江南电缆有限公司 | Waterproof cable with control cable core at center |
-
2014
- 2014-11-26 CN CN201420718182.1U patent/CN204215789U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392792A (en) * | 2014-11-26 | 2015-03-04 | 无锡江南电缆有限公司 | Waterproof cable with control cable core at center |
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| GR01 | Patent grant |