CN202650647U - Frequency conversion cable equipped with flexible metal sheath - Google Patents
Frequency conversion cable equipped with flexible metal sheath Download PDFInfo
- Publication number
- CN202650647U CN202650647U CN2012202814532U CN201220281453U CN202650647U CN 202650647 U CN202650647 U CN 202650647U CN 2012202814532 U CN2012202814532 U CN 2012202814532U CN 201220281453 U CN201220281453 U CN 201220281453U CN 202650647 U CN202650647 U CN 202650647U
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- China
- Prior art keywords
- flexible metal
- cable
- metal sheath
- frequency
- frequency conversion
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Abstract
The utility model discloses a frequency conversion cable equipped with a flexible metal sheath. The frequency conversion cable equipped with the flexible metal sheath includes an insulation cable core, and a nonmetal oversheath, and further includes the flexible metal sheath winding on the cable core, and the nonmetal oversheath is cladded on the flexible metal sheath. The flexible metal sheath is formed by a soft copper strip through pre-rolling, and then is covered and wound outside the cable core, and the covering overlapping rate is not less than 20%. The frequency conversion cable can be applied to a high-voltage and high-frequency environment, a shielding cable in such a structure proofs electromagnetic induction, imperfect earth, and power line conductive interference, reduces inductance, and prevents the overheating of inductive electromotive heat. The shielding layer takes the effect of suppressing the outward emission of the electromagnetic wave, and can be used as the channel of a short circuit current, thereby taking the effect of protecting a neutral conductor core. The cable has the properties of compression resistance and tension resistance, and is convenient in bending laying, meanwhile, the cable has the properties of ratproofing and termite-proofing, as well as fire resistance at a certain degree.
Description
Technical field
The utility model relates to the cable technology field, relates in particular to the frequency-changing cable with the flexible metal sheath.
Background technology
Common frequency-changing cable generally adopts proof copper-wire braided shielding, copper wire winding shielding or the wrapped shielding of copper strips, and the shielding rejection coefficient is the highest about 85%, and screen can't satisfy simultaneously, and the inhibition electromagnetic wave is externally launched and the effect of short circuit current passage.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of frequency-changing cable with the flexible metal sheath, to solve the existing weak point of prior art.
In order to realize above-mentioned utility model purpose, the technical scheme that the utility model adopts is:
With the frequency-changing cable of flexible metal sheath, comprise insulated wire cores, nonmetal oversheath, it is characterized in that, also comprise the flexible metal sheath that is wound on the described cable core, described nonmetal oversheath is coated on the sheath of described flexible metal.
In a preferred embodiment of the present utility model, described flexible metal sheath adopts in advance roll forming soft copper band, is wound on the cable core by the tight mode of putting up.
The nominal thickness of described soft copper band is 0.08mm to 1.0mm.
The Duplication of putting up of described soft copper band is not less than 20%.
The cross section of described soft copper band is for S-shaped cross section roughly or roughly be Z-shaped cross section.
The utility model has the advantages that this frequency-changing cable can be applied in the environment of high pressure, high frequency, the shielded type cable of this structure can anti-electromagnetic induction, imperfect earth and power line conducted interference, reduces inductance, prevents that induced emf is excessive.Screen had both played and had suppressed the externally effect of emission of electromagnetic wave, can be used as again the passage of short circuit current, played the protective effect of neutral core.Cable has resistance to compression and tensile property, and bending is laid conveniently, has simultaneously protection against rodents, termite-proof and certain fire resistance concurrently.
Description of drawings
Fig. 1 is that the utility model is with the radial cross-section of the frequency-changing cable embodiment 1 of flexible metal sheath.
Fig. 2 is that the utility model is with the radial cross-section of the frequency-changing cable embodiment 2 of flexible metal sheath.
Embodiment
Following specific embodiments and the drawings further specify the utility model.
Embodiment 1
The frequency-changing cable with the flexible metal sheath as described in Figure 1, rated operational voltage U
0/ U is 0.6/1kV.It comprises insulated wire cores, be wound on flexible metal sheath 6 on the insulation cable core, be coated on the outer nonmetal oversheath 7 of flexible metal sheath 6.
The insulation cable core consists of by 3 master cores, 3 ground connection cores and filler 5 are stranded.3 master cores, 3 ground connection core spaces, and symmetric arrays.The pitch of insulation cable core is 30 times of laying up diameter.Filler 5 is the non-hygroscopic gasket for packing.Filling radical is 7 * Φ 2, and the core gap is filled respectively one.
Master core is comprised of conductor 3 and the insulating barriers 4 that are coated on outside the conductor 3.Conductor 3 adopts the annealed copper stranded conductor, and material is the hypoxemia cathode copper, and cross sectional shape is circular, and nominal cross is 25mm
2, structure is 7/2.20mm.Insulating barrier 4 adopts cross-linking polyethylene materials, and nominal thickness is 1.3mm.
The ground connection core is comprised of conductor 1 and the insulating barrier 2 that is coated on outside the conductor 1.Conductor 1 adopts the annealed copper conductor, and material is the hypoxemia cathode copper, and cross sectional shape is circular, and nominal cross is 4mm
2, structure is 1/2.25mm.Insulating barrier 4 adopts cross-linking polyethylene materials, and nominal thickness is 1.1mm.
The color of 3 master core insulation is respectively: red, yellow, and green, the color of 3 earth connection core insulations is blueness.
Embodiment 2
The frequency-changing cable with the flexible metal sheath as described in Figure 2, rated operational voltage U
0/ U is 8.7/15kV.Comprise insulated wire cores, be coated on separation sleeve 8 on the insulated wire cores, be wound on flexible metal sheath 6 on the separation sleeve 8, be coated on the outer nonmetal oversheath 7 of flexible metal sheath 6.
The insulation cable core is by 3 master cores and filler 5a is stranded consists of.The pitch of insulation cable core is 35 times of laying up diameter.Filler 5a is the fan-shaped packing of non-hygroscopic, packing is with a high standard * wide be 23.5 * 56mm, the center clearance of insulated wire cores is filled the non-hygroscopic gasket for packing of a Φ 8.
Every master core is by conductor 3a conductor shield 9, insulating barrier 10, insulation screen 11 and metal screen layer 12 stranded form outer with being coated on conductor 3a.Conductor 3a adopts the annealed copper stranded conductor, and material is the hypoxemia cathode copper, and cross sectional shape is circular, and nominal cross is 185mm
2, structure is 36/2.63mm.Conductor shield 9 adopts super clean semiconductive shieldin material, and nominal thickness is 0.8mm.Insulating barrier 10 adopts super clean cross-linking polyethylene materials, and nominal thickness is 4.5mm, and insulation screen 11 adopts super clean semiconductive shieldin material, and nominal thickness is 0.6mm.Conductor shield 9, insulating barrier 10, insulation screen 11 adopt three-layer co-extruded dry method mode to produce.
Put into the colour band that one color is respectively red, yellow, and green for 12 times at the metal screen layer of 3 master cores and identify, the width of colour band is 5mm.Metal screen layer 12 adopts individual layer soft copper band overlapping wrapped outside insulated wire cores, and Duplication is not less than 15%, and soft copper band nominal thickness is 0.1mm.
The utility model has the advantages that this frequency-changing cable can be applied in the environment of high pressure, high frequency, the shielded type cable of this structure can anti-electromagnetic induction, imperfect earth and power line conducted interference, reduces inductance, prevents that induced emf is excessive.Screen had both played and had suppressed the externally effect of emission of electromagnetic wave, can be used as again the passage of short circuit current, played the protective effect of neutral core.Cable has resistance to compression and tensile property, and bending is laid conveniently, has simultaneously protection against rodents, termite-proof and certain fire resistance concurrently.
Claims (5)
1. with the frequency-changing cable of flexible metal sheath, comprise insulated wire cores, nonmetal oversheath, it is characterized in that, also comprise the flexible metal sheath that is wound on the described cable core, described nonmetal oversheath is coated on the sheath of described flexible metal.
2. the frequency-changing cable with the flexible metal sheath as claimed in claim 1 is characterized in that, described flexible metal sheath adopts in advance roll forming soft copper band, is wound on the cable core by the tight mode of putting up.
3. the frequency-changing cable with the flexible metal sheath as claimed in claim 2 is characterized in that, the nominal thickness of described soft copper band is 0.08mm to 1.0mm.
4. the frequency-changing cable with the flexible metal sheath as claimed in claim 2 is characterized in that, the Duplication of putting up of described soft copper band is not less than 20%.
5. the frequency-changing cable with the flexible metal sheath as claimed in claim 2 is characterized in that, the cross section of described soft copper band is for S-shaped cross section roughly or roughly be Z-shaped cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202814532U CN202650647U (en) | 2012-06-14 | 2012-06-14 | Frequency conversion cable equipped with flexible metal sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202814532U CN202650647U (en) | 2012-06-14 | 2012-06-14 | Frequency conversion cable equipped with flexible metal sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650647U true CN202650647U (en) | 2013-01-02 |
Family
ID=47419714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202814532U Expired - Fee Related CN202650647U (en) | 2012-06-14 | 2012-06-14 | Frequency conversion cable equipped with flexible metal sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
-
2012
- 2012-06-14 CN CN2012202814532U patent/CN202650647U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
| CN102751019B (en) * | 2012-06-14 | 2015-07-01 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200614 |