CN206401055U - A kind of profile conductor twisted cable for being beneficial to protection insulating barrier - Google Patents
A kind of profile conductor twisted cable for being beneficial to protection insulating barrier Download PDFInfo
- Publication number
- CN206401055U CN206401055U CN201720092432.9U CN201720092432U CN206401055U CN 206401055 U CN206401055 U CN 206401055U CN 201720092432 U CN201720092432 U CN 201720092432U CN 206401055 U CN206401055 U CN 206401055U
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- Prior art keywords
- cable
- conductor
- insulating barrier
- twisted
- cable core
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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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a kind of profile conductor twisted cable for being beneficial to protection insulating barrier; including some cable cores, oversheath; the cable core includes the conductor twisted together and the insulating barrier being extruded in outside the conductor twisted together; some cable core twisted synthesizing cables; filler is provided with space between cable core; the cable core of the twisted synthesizing cable is externally provided with oversheath, and the section of the cable core is sector, and the stranded direction of rotation of the conductor is identical with the stranded direction of rotation of cable core stranding.The utility model effectively prevent special-shaped cable insulation and be damaged, so as to avoid the generation that conductor cable punctures, improve the security and stability of profile conductor twisted cable.
Description
Technical field
The utility model is related to special-shaped field of cable technology, and in particular to a kind of profile conductor for being beneficial to protection insulating barrier is twisted
Close cable.
Background technology
Cable is that power equipment electricity consumption majority is to use polyphase source, so electric for transmitting electric energy or control signal
Power cable is multicore, commonly uses the three-core cable or quad of three phase mains.Control cable is mainly used for control device
Circuit, the radical that control circuit needs is usually a lot, therefore control cable is often made as multicore.It is not used only so
It is convenient, economical, and, three-phase magnetic field cancellation can be made to the three-core cable stranding using three phase mains power transmission together, reduce
Loss.Therefore, it is that, by two cores, three cores, the insulated wire cores of even tens are twisted together in cabling procedure, constitutes many
Core cable.It is this that by certain regular stranded technical process, including when stranded, space is filled out between core by insulated wire cores
Thing and the band process on stranding are filled, is called stranding.
In the prior art, three cores of larger cross-section or four core lv power cables, conductor wire core typically use sector structure,
This can greatly reduce the diameter of cable, save cable sheath material, cost is reduced by 15%~20%, therefore with preferably warp
Ji benefit, but when often producing cable, conductor strand is left-hand, Multi-core cable forming direction is dextrad, so there is a drawback,
During cable cabling, core needs pretwist, and the conductor of such extruded insulation core has internal stress, when cable is powered and run, with
The internal stress suffered by temperature rise insulation to become larger, easily generation insulation is impaired, and conductor cable punctures.
Therefore designing a kind of profile conductor twisted cable that can prevent that insulating barrier is impaired becomes power equipment cable row
The active demand of industry.
Utility model content
The utility model is in view of the above-mentioned problems, there is provided a kind of profile conductor twisted cable for being beneficial to protection insulating barrier, have
Effect prevents special-shaped cable insulation to be damaged, so as to avoid the generation that conductor cable punctures, improves the stranded electricity of profile conductor
The security and stability of cable.
The utility model solve technical problem technical scheme be：A kind of stranded electricity of profile conductor for being beneficial to protection insulating barrier
Cable, including some cable cores, oversheath, the cable core include the conductor twisted together and are extruded in outside the conductor twisted together
Insulating barrier, some cable core twisted synthesizing cables are provided with filler in the space between cable core, and the cable core of the twisted synthesizing cable is externally provided with outer
Sheath, the section of the cable core is sector, and the stranded direction of rotation of the conductor is identical with the stranded direction of rotation of cable core stranding.
Further, the first band is provided with outside the cable core, first band is arranged in oversheath.
Further, first band, which is wrapped with outside inner sheath, inner sheath, sets nonmagnetic metal silk armor, non-
Magnetic metal armor is outer to be wrapped up by the second band, and the oversheath is wrapped in outside the second band.
Further, the nonmagnetic metal armor is made up of aluminium wire.
Further, a kind of profile conductor twisted cable for being beneficial to protection insulating barrier includes four cable cores, and the cable core
Section is 90 degree fan-shaped, and the stranded rear section of cable core constitutes a circle.
Further, the oversheath is made of halogen-free and low-smoke flame-retardant polyolefin material.
Further, the inner sheath is extruded using polyethylene sheathing material and formed.
The beneficial effects of the utility model
1. the utility model effectively prevent special-shaped cable insulation and be damaged, so as to avoid the hair that conductor cable punctures
It is raw, improve the security and stability of profile conductor twisted cable.
2. need pretwist during due to stranding and pretwist direction is identical with the stranded direction of rotation of stranding, by by fan-shaped abnormity
The stranded direction of rotation of cable core conductor is identical with the stranded direction of rotation of cable core stranding, it is to avoid pretwist direction rotates with conductor strand
The internal stress that caused extruded insulation cable core conductor in opposite direction is present becomes big, is damaged, is effectively increased so as to avoid insulation
The stability of cable.
3. the utility model is by from the nonmagnetic metal such as aluminium wire silk armouring, improving current-carrying capacity of cable, reducing whirlpool
Stream loss, can ensure that the normal operation of cable, also improves the security performance of cable.
4. the utility model inner sheath extrudes production using cracking resistance high density polyethylene (HDPE) sheath material, prevent armor or
External force destroys cable conductor, can both meet the requirement of the internal sheath mechanical strength of cable, and effective radial water-resisting is served again and is made
With.
5. the utility model oversheath uses halogen-free and low-smoke flame-retardant polyolefin sheathed material, conventional mechanical performance is being met
While with physical property requirements, the features such as also possessing high-low temperature resistant, corrosion-resistant, oil resistivity, resistance to acids and bases, low cigarette, low toxicity,
The stability of cable in harsh environments can be ensured.
6. the utility model constitutes the fan-shaped cable core twisted synthesizing cable of round four by stranded rear section, compare circle
Cable core twisted synthesizing cable, reduces in identical electric conductivity down cross-sectional area, so as to greatly reduce cost.
Brief description of the drawings
Fig. 1 is cross section structure schematic diagram of the present utility model；
Fig. 2 is conductor strand direction schematic diagram of the present utility model；
Fig. 3 is cable core pretwist direction schematic diagram of the present utility model；
In figure, 1, cable core, 11, conductor, 12, insulating barrier, 2, filler, the 3, first band, 4, inner sheath, 5, non magnetic gold
Belong to silk armor, the 6, second band, 7, oversheath.
Embodiment
As shown in figure 1, a kind of profile conductor twisted cable for being beneficial to protection insulating barrier mainly includes some cable cores 1, outer shield
Set 7, in order to more fully understand the utility model, explains in detail embodiment of the present utility model below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of profile conductor twisted cable for being beneficial to protection insulating barrier, including it is some cable cores 1, outer
Sheath 7, the cable core 1 includes the conductor 11 twisted together and the insulating barrier 12 being extruded in outside the conductor 11 twisted together,
Filler 2 is provided with space between some twisted synthesizing cables of cable core 1, cable core 1, the cable core 1 of the twisted synthesizing cable is externally provided with oversheath
7, oversheath 7 is made of halogen-free and low-smoke flame-retardant polyolefin material, is meeting conventional mechanical performance and physical property requirements
Meanwhile, the features such as also possessing high-low temperature resistant, corrosion-resistant, oil resistivity, resistance to acids and bases, low cigarette, low toxicity, it is ensured that cable is being disliked
Stability under bad environmental condition, the section of the cable core 1 is sector, and stranded direction of rotation and the cable core 1 of the conductor 11
The stranded direction of rotation of stranding is identical, and pretwist is needed during due to stranding, and pretwist direction is identical with the stranded direction of rotation of stranding, passes through
The stranded direction of rotation of the conductor 11 of fan-shaped cable core 1 is identical with the stranded direction of rotation of the stranding of cable core 1, it is to avoid pretwist direction with
The internal stress that extruded insulation cable core conductor 11 caused by the stranded direction of rotation of conductor 11 is opposite is present becomes big, so as to avoid absolutely
Edge is damaged, and effectively increases the stability of cable.
Further, the first band 3 is provided with outside the cable core 1, first band 3 is arranged in oversheath 7, described
First band 3 is wrapped with inner sheath 4, and inner sheath is extruded using polyethylene sheathing material and formed, and prevents that armor or external force are broken
Bad cable conductor, can both meet the requirement of the internal sheath mechanical strength of cable, and effective radial water-resisting effect, interior shield are served again
Set 4 is outer to set nonmagnetic metal silk armor 5, and nonmagnetic metal armor 5 is made up of aluminium wire, improves current-carrying capacity of cable,
Eddy-current loss is reduced, the normal operation of cable is can ensure that, the security performance of cable, nonmagnetic metal armor 5 is also improved
Wrapped up outside by the second band 6, the oversheath 7 is wrapped in outside the second band 6.
Including four cable cores 1, and the section of the cable core 1 is 90 degree fan-shaped, and the stranded rear section of cable core 1 constitutes one
Circle, compare circular cable core twisted synthesizing cable, reduces in identical electric conductivity down cross-sectional area, so as to greatly reduce into
This.
Although above-mentioned the embodiment of utility model is described with reference to accompanying drawing, not to the utility model
The limitation of protection domain, on the basis of the technical solution of the utility model, those skilled in the art need not pay creativeness
Various modifications or deform still within protection domain of the present utility model that work can be made.
Claims (7)
1. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier, including some cable cores (1), oversheath (7), its feature exist
In the cable core (1) includes the conductor (11) twisted together and is extruded in the insulating barrier of the conductor (11) twisted together outside
(12) filler (2), the cable core (1) of the twisted synthesizing cable are provided with the space between, some cable core (1) twisted synthesizing cables, cable core (1)
It is externally provided with oversheath (7), the section of the cable core (1) is sector, and stranded direction of rotation and the cable core (1) of the conductor (11)
The stranded direction of rotation of stranding is identical.
2. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 1, it is characterised in that the cable
The first band (3) is provided with outside core (1), first band (3) is arranged in oversheath (7).
3. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 2, it is characterised in that described the
One band (3) is wrapped with inner sheath (4), and inner sheath (4) sets nonmagnetic metal silk armor (5), nonmagnetic metal armour outside
Fill layer (5) to be wrapped up by the second band (6) outside, the oversheath (7) is wrapped in the second band (6) outside.
4. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 3, it is characterised in that described non-
Magnetic metal armor (5) is made up of aluminium wire.
5. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 1, it is characterised in that including four
Root cable core (1), and the cable core (1) section is 90 degree fan-shaped, the stranded rear section of cable core (1) constitutes a circle.
6. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 1, it is characterised in that described outer
Sheath (7) is made of halogen-free and low-smoke flame-retardant polyolefin material.
7. a kind of profile conductor twisted cable for being beneficial to protection insulating barrier as claimed in claim 3, it is characterised in that in described
Sheath (4) is extruded using polyethylene sheathing material and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092432.9U CN206401055U (en) | 2017-01-22 | 2017-01-22 | A kind of profile conductor twisted cable for being beneficial to protection insulating barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092432.9U CN206401055U (en) | 2017-01-22 | 2017-01-22 | A kind of profile conductor twisted cable for being beneficial to protection insulating barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401055U true CN206401055U (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720092432.9U Active CN206401055U (en) | 2017-01-22 | 2017-01-22 | A kind of profile conductor twisted cable for being beneficial to protection insulating barrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782806A (en) * | 2017-01-22 | 2017-05-31 | 山东聚辰电缆有限公司 | A kind of profile conductor twisted cable beneficial to protection insulating barrier |
-
2017
- 2017-01-22 CN CN201720092432.9U patent/CN206401055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782806A (en) * | 2017-01-22 | 2017-05-31 | 山东聚辰电缆有限公司 | A kind of profile conductor twisted cable beneficial to protection insulating barrier |
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