CN104616808A - Low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable - Google Patents
Low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable Download PDFInfo
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- CN104616808A CN104616808A CN201510031953.9A CN201510031953A CN104616808A CN 104616808 A CN104616808 A CN 104616808A CN 201510031953 A CN201510031953 A CN 201510031953A CN 104616808 A CN104616808 A CN 104616808A
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Abstract
The invention discloses a low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable and relates to the technical field of cables. The low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable comprises a power wire core, an inner oxygen barrier, a steel wire reinforcing layer, an outer oxygen barrier and an outer sheath; the power wire core is formed through wrapping a metal shielding layer, a crosslinked polyethylene insulating layer and a conductor shielding layer on a 2-class soft copper conductor in sequence; the inner barrier layer is wrapped by three power wire cores to form a cable core, a gap in the cable core is provided with a filled rope, and the outer oxygen barrier and the outer sheath are arranged outside the cable core in sequence; the steel wire reinforcing layer is arranged between the inner oxygen barrier and outer oxygen barrier. The low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable is simple in structure design, stable in performance, flexible, light in weight, low in smoke content, zero in halogen content, strong in corrosion resistance, good in waterproof effect and good in safety performance, and the internal and external electromagnetic interference is effectively inhibited.
Description
Technical field
The present invention relates to cable, particularly relate to a kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable.
Background technology
Order is along with the fast development of national economy and improving constantly of living standards of the people, and social power consumption greatly increases.The steep increasing of various electric equipment consumption, electrical fire accident also increases severely thereupon.According to statistics, the annual breaking out of fire of China about more than ten ten thousand, direct property loss more than 10 hundred million yuan.Wherein, account for 30% of sum by the fire that electrically reason causes such as electric wire short circuit, excess load, electric equipment fault, the frequency of electrical fire and the loss caused all occupy first of all kinds of fire.In electrical fire, the fire caused by electric wire accounts for half.Therefore more and more pay attention to about the low-smoke non-halogen flame-retardant of electric wire and fire safety problem people, to the low-smoke non-halogen flame-retardant of electric wire and fire protection requirement also more and more higher.
So just require that the environment of use cable on the one hand will ventilate, dry, space is open, perfect heat-dissipating should possess and have certain defencive function to cable, this is obviously difficult to accomplish, require on the other hand cable craft technological performance, low smoke and zero halogen, fire prevention, waterproof, decay resistance is strong, mounting and installation is convenient, fail safe is high fireproof cable, it has that mineral insulated cable is high temperature resistant concurrently, fire prevention, LSZH, the excellent specific property such as ageing-resistant, also overcome mineral insulated cable bending property poor, the easy moisture absorption simultaneously; The shortcomings such as joint is many, installation is inconvenient, also do not have a kind ofly have low smoke and zero halogen, fire-retardant, fire prevention, waterproof, decay resistance is strong, mounting and installation is convenient, fail safe is high flexible fire-proof cable up to now.
Summary of the invention
For meeting above-mentioned requirements, the object of the invention is to provide a kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable.
The solution of the present invention is as follows: a kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable, comprises power wire core, interior oxygen barrier layer, steel wire reinforcing layer, outer oxygen barrier layer and oversheath; Described power wire core extrudes two class soft copper conductors successively by metal screen layer, crosslinked polyetylene insulated layer and conductor shield to form; Described interior oxygen barrier layer extrudes three power wire core and becomes cable core, and described cable core internal clearance is provided with gasket for packing, is disposed with outer oxygen barrier layer and oversheath outside cable core; Steel wire reinforcing layer is provided with between described interior oxygen barrier layer and outer oxygen barrier layer.
Insulation screen is provided with between described metal screen layer and crosslinked polyetylene insulated layer.
Beneficial effect of the present invention: structural design of the present invention is simple, stable performance, soft, lightweight, low smoke and zero halogen, corrosion resistance is strong, and flameproof effect is good, and the effective electromagnetic interference suppressing inside and outside boundary, security performance is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Wherein: 1, two class soft copper conductors; 2, conductor shield; 3, crosslinked polyetylene insulated layer; 4, insulation screen; 5, metal screen layer; 6, gasket for packing; 7, interior oxygen barrier layer; 8, steel wire reinforcing layer; 9, outer oxygen barrier layer; 10, oversheath.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described;
As shown in Figure 1, a kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable, comprises power wire core, interior oxygen barrier layer 7, steel wire reinforcing layer 8, outer oxygen barrier layer 9 and oversheath 10; Described power wire core extrudes two class soft copper conductors 1 successively by metal screen layer 5, crosslinked polyetylene insulated layer 3 and conductor shield 2 to form; Described interior oxygen barrier layer extrudes three power wire core and becomes cable core, and described cable core internal clearance is provided with gasket for packing, is disposed with outer oxygen barrier layer 9 and oversheath 10 outside cable core; Steel wire reinforcing layer is provided with between described interior oxygen barrier layer 7 and outer oxygen barrier layer 9.Described interior oxygen barrier layer 7 and outer oxygen barrier layer 9 all adopt inorganic mineral oxygen barrier material to extrude and form; Described steel wire reinforcing layer 8 adopts that high-tensile steel wires are wrapped to be formed; Described oversheath 10 adopts low smoke and zero halogen, fire-retardant, corrosion resistant protective cover material extrudes and forms.Steel wire reinforcing layer plays load-bearing effect, and cable can length vertically be installed greatly; During breaking out of fire, inside and outside oxygen barrier layer 9 heat absorption heat can produce certain steam prevention flame to the extension of cable inside, extends the fire rescue time.When employing low smoke and zero halogen, fire-retardant, corrosion-resistant sheath breaking out of fire, sheath can not be burned at once, LSZH during burning, and corrosion resistance is strong, harmless.Be applicable to the skyscraper of large size city, public place of entertainment and numerous supply line requiring Fire lift in the construction project of high-quality and high safety, subway, tunnel, metallurgy, fire-fighting system, fire pump, fire alarm, smoke evacuation system, emergency lighting and fire hazard district, high temperature occasion and require the aspects such as ultra-safe facility, Main Function is for not cutting off the electricity supply when breaking out of fire, can reach again the object of safety guarantee.
Be provided with insulation screen 4 between described metal screen layer 5 and crosslinked polyetylene insulated layer 3, insulation screen 4 adopts semiconductive material to extrude and forms.
Although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we can carry out various equivalence according to conception of the present invention to above-mentioned execution mode and change and amendment; its function produced do not exceed that specification contains yet spiritual time, all should within protection scope of the present invention.
Claims (2)
1. a low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable, comprises power wire core, interior oxygen barrier layer, steel wire reinforcing layer, outer oxygen barrier layer and oversheath; It is characterized in that: described power wire core extrudes two class soft copper conductors successively by metal screen layer, crosslinked polyetylene insulated layer and conductor shield to form; Described interior oxygen barrier layer extrudes three power wire core and becomes cable core, and described cable core internal clearance is provided with gasket for packing, is disposed with outer oxygen barrier layer and oversheath outside cable core; Steel wire reinforcing layer is provided with between described interior oxygen barrier layer and outer oxygen barrier layer.
2. a kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable according to claim 1, is characterized in that: be provided with insulation screen between described metal screen layer and crosslinked polyetylene insulated layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031953.9A CN104616808A (en) | 2015-01-22 | 2015-01-22 | Low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510031953.9A CN104616808A (en) | 2015-01-22 | 2015-01-22 | Low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104616808A true CN104616808A (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510031953.9A Pending CN104616808A (en) | 2015-01-22 | 2015-01-22 | Low-smoke zero-halogen flame-retardant flexible fireproof medium voltage cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN104616808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041216A1 (en) * | 2016-08-31 | 2018-03-08 | 江苏中利集团股份有限公司 | Flame-retardant non-twisting cable utilizing thermoplastic elastomer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998052197A1 (en) * | 1997-05-15 | 1998-11-19 | Pirelli Cavi E Sistemi S.P.A. | Cable with impact-resistant coating |
| CN202258433U (en) * | 2011-10-25 | 2012-05-30 | 四川鑫电电缆有限公司 | Medium-voltage flame retardant cable |
| CN202632869U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum-core low-smoke halogen-free flame-retardant medium-voltage flame-resistant cable |
| CN202905278U (en) * | 2012-11-29 | 2013-04-24 | 安徽新亚特电缆集团有限公司 | Novel middle-voltage fireproof power cable |
| CN204463922U (en) * | 2015-01-22 | 2015-07-08 | 安徽凌宇电缆科技有限公司 | A kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable |
-
2015
- 2015-01-22 CN CN201510031953.9A patent/CN104616808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998052197A1 (en) * | 1997-05-15 | 1998-11-19 | Pirelli Cavi E Sistemi S.P.A. | Cable with impact-resistant coating |
| CN202258433U (en) * | 2011-10-25 | 2012-05-30 | 四川鑫电电缆有限公司 | Medium-voltage flame retardant cable |
| CN202632869U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum-core low-smoke halogen-free flame-retardant medium-voltage flame-resistant cable |
| CN202905278U (en) * | 2012-11-29 | 2013-04-24 | 安徽新亚特电缆集团有限公司 | Novel middle-voltage fireproof power cable |
| CN204463922U (en) * | 2015-01-22 | 2015-07-08 | 安徽凌宇电缆科技有限公司 | A kind of low-smoke non-halogen flame-retardant fire resistant flexible midium voltage cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041216A1 (en) * | 2016-08-31 | 2018-03-08 | 江苏中利集团股份有限公司 | Flame-retardant non-twisting cable utilizing thermoplastic elastomer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |