CN202816434U - Nonmagnetic metal sheath fireproof cable - Google Patents
Nonmagnetic metal sheath fireproof cable Download PDFInfo
- Publication number
- CN202816434U CN202816434U CN 201220511823 CN201220511823U CN202816434U CN 202816434 U CN202816434 U CN 202816434U CN 201220511823 CN201220511823 CN 201220511823 CN 201220511823 U CN201220511823 U CN 201220511823U CN 202816434 U CN202816434 U CN 202816434U
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- China
- Prior art keywords
- fire
- layer
- protective sleeve
- magnetic metal
- cable
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of wires and cables, in particular to a nonmagnetic metal sheath fireproof cable, comprising a cable core, wherein the cable core comprises a conductor wire core and a fireproof protective layer arranged outside the conductor wire core, outside the cable core there is also provided a fireproof isolation layer, between the fireproof isolation layer and the cable core there is provided a mineral matter filling layer, and the fireproof isolation layer is wrapped by a nonmagnetic metal sheath layer. The nonmagnetic metal sheath fireproof cable enables the fireproof and explosion-proof grade of the cable core to be increased, and the aluminium sheath layer is strong in corrosion resistance and electromagnetic interference resistance, and simultaneously can enable the copper consumption to be reduced, thereby reducing production cost.
Description
Technical field
The utility model relates to technical field of electric wires and cables, is specifically related to a kind of cable.
Background technology
The conductor thread core of cable core is when alternating electric field passes through, produce alternating magnetic field around it, will produce induced potential on the metallic sheath that the magnetic metal of cable is made, produce simultaneously eddy current and heating, not only significantly reduce the rated current-carrying capacity of conductor, also may cause the cable thermal breakdown to cause a serious accident.
The utility model content
The purpose of this utility model is, a kind of non-magnetic metal protective sleeve fire-proof cable is provided, and solves above technical problem.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of non-magnetic metal protective sleeve fire-proof cable; comprise a cable core; described cable core comprises that a conductor thread core, is arranged on the outer refractory protection of described conductor thread core; it is characterized in that; the outside of described cable core also is provided with a fire-resistant separator; be provided with mineral-filled layer between described fire-resistant separator and the described cable core, the outside of described fire-resistant separator is coated with the non-magnetic metal protective sleeve layer.
Described non-magnetic metal protective sleeve layer adopts the aluminium sheath layer of aluminum.
Conductor thread core, refractory protection, mineral-filled layer, fire-resistant separator, the non-magnetic metal protective sleeve layer of the utility model by setting gradually gets a promotion the fire-resistant explosive-proof grade of described cable core, is applicable to the mining signal transmission.
The mineral-filled layer that described mineral-filled layer adopts the mineral matter rope to form.Described mineral matter rope comprises a rope matter matrix, and described rope matter matrix strand is shaped with mineral fibre.
Mineral matter rope of the present utility model is take natural rock and mineral etc. as raw material, melts in furnace cupola or other tank furnaces, blows by force at certain pressure, quenching becomes fibrous, then makes rope matter matrix.1250～1400 ℃ of high temperature of mineral matter rope ability.Mineral matter rope of the present utility model has good heat-insulating property.And itself belongs to the inanimate matter silicate fiber, and is incombustible.The utility model adopts the mineral matter rope to be filled between cable core and the fire-resistant separator as packed layer; the mineral matter rope has the incombustible and adiabatic performance such as high temperature resistant; so that the interior heat that cable core produced in when transmission of electricity dissipates in packed layer, heat will be located at outside protective sleeve and ignite even burn and cause fire in stoping.
Described fire-resistant separator adopts the wrapped ceramic silicon rubber layer that forms of ceramic silicon rubber twining package tape.It has possessed the good fundamental characteristics of silicon rubber elastic to the ceramic silicon elastomeric material at normal temperatures, have nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, weather-proof aging, good electrical insulation capability, also possessed the good processing characteristics of common high temperature silicon rubber, to about 200 degree above freezing, can keep the flexible cable state at 40 degrees below zero.Attack at flame; temperature reaches 300 degree when above; can be converted to by original soft condition rigid sponge ceramic body; the inner hole that produces of fireproof jointing sheath after the hardening; be conducive to insulation; the sponge ceramic body has significantly fire-resistant effect with intercepting high temperature like this, thereby effectively protects the internal structure of cable that machinery variation and electrical property variation do not occur.
The wrapped belt of fire-resistant isinglass belt that described refractory protection adopts the fire-resistant isinglass belt twining package tape to make.
The thickness of described non-magnetic metal protective sleeve layer is 0.3mm-1.5mm.The restrictive coating of aluminum has stronger corrosion resistance, anti-electromagnetic interference, and the use that can lower the copper metal simultaneously is so that production cost descends.
The inside of described mineral-filled layer is filled with at least one described cable core.
The inside of described mineral-filled layer is filled with at least two described cable cores.At least two described cable cores are yi word pattern and arrange.
The inside of described mineral-filled layer is filled with at least three described cable cores.At least three described cable cores are yi word pattern or Chinese character pin-shaped arrangement, and the inside of described mineral-filled layer is filled with four described cable cores.Four described cable cores are matrix pattern and arrange.
Beneficial effect: the utility model gets a promotion the fire-resistant explosive-proof grade of described cable core, and the restrictive coating of aluminum has stronger corrosion resistance, anti-electromagnetic interference, and the use that can lower the copper metal simultaneously is so that production cost descends.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the another kind of structural representation of the utility model;
Fig. 3 is the another kind of structural representation of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, Fig. 2, Fig. 3; a kind of non-magnetic metal protective sleeve fire-proof cable; comprise a cable core; cable core comprises that a conductor thread core 1, is arranged on the refractory protection 2 outside the conductor thread core 1; the outside of cable core also is provided with a fire-resistant separator 4; be provided with mineral-filled layer 3 between fire-resistant separator 4 and the cable core, the outside of fire-resistant separator 4 is coated with non-magnetic metal protective sleeve layer 5.
The mineral-filled layer 3 that mineral-filled layer 3 adopts the mineral matter rope to form.The mineral matter rope comprises a rope matter matrix, and rope matter matrix strand is shaped with mineral fibre.Mineral matter rope of the present utility model is take natural rock and mineral etc. as raw material, melts in furnace cupola or other tank furnaces, blows by force at certain pressure, quenching becomes fibrous, then makes rope matter matrix.1250～1400 ℃ of high temperature of mineral matter rope ability.Mineral matter rope of the present utility model has good heat-insulating property.And itself belongs to the inanimate matter silicate fiber, and is incombustible.The utility model adopts the mineral matter rope to be filled between cable core and the fire-resistant separator 4 as packed layer; the mineral matter rope has the incombustible and adiabatic performance such as high temperature resistant; so that the interior heat that cable core produced in when transmission of electricity dissipates in packed layer, heat will be located at outside protective sleeve and ignite even burn and cause fire in stoping.
Fire-resistant separator 4 adopts the wrapped ceramic silicon rubber layer that forms of ceramic silicon rubber twining package tape.It has possessed the good fundamental characteristics of silicon rubber elastic to the ceramic silicon elastomeric material at normal temperatures, have nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, weather-proof aging, good electrical insulation capability, also possessed the good processing characteristics of common high temperature silicon rubber, to about 200 degree above freezing, can keep the flexible cable state at 40 degrees below zero.Attack at flame; temperature reaches 300 degree when above; can be converted to by original soft condition rigid sponge ceramic body; the inner hole that produces of fireproof jointing sheath after the hardening; be conducive to insulation; the sponge ceramic body has significantly fire-resistant effect with intercepting high temperature like this, thereby effectively protects the internal structure of cable that machinery variation and electrical property variation do not occur.
The wrapped belt of fire-resistant isinglass belt that refractory protection 2 adopts the fire-resistant isinglass belt twining package tape to make.
The non-magnetic metal protective sleeve layer 5 that non-magnetic metal protective sleeve layer 5 adopts seamless copper pipe to make.The thickness of non-magnetic metal protective sleeve layer 5 is 0.3mm-1.5mm.Non-magnetic metal protective sleeve layer 5 made of copper has stronger corrosion resistance, high mechanical strength, anti-electromagnetic interference, and the non-magnetic metal protective sleeve layer 5 that seamless copper pipe is made has determined the utlity model has good electric property, mechanical performance, environmental resistance.And adopt non-magnetic metal protective sleeve layer 5 that seamless copper pipe makes and its cable termination that is tightly connected to organize flammable oil vapour, imflammable gas and flame to be connected cable to enter the electric equipment that is connected with cable and play explosion-proof, be the best guarantee in explosion-proof performance requirement place.Simultaneously non-magnetic metal protective sleeve layer 5 adopts seamless copper pipes to draw to form, thereby moisture can enter cable inside without any approach, is that some are such as the ideal chose in the larger place of the wetness such as underground mine.
The inside of mineral-filled layer 3 is filled with at least one cable core.The inside of mineral-filled layer 3 is filled with at least two cable cores.At least two cable cores are yi word pattern and arrange.
The inside of mineral-filled layer 3 is filled with at least three cable cores.At least three cable cores are yi word pattern or Chinese character pin-shaped arrangement, and the inside of mineral-filled layer 3 is filled with four cable cores.Four cable cores are matrix pattern and arrange.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. non-magnetic metal protective sleeve fire-proof cable, comprise a cable core, described cable core comprises that a conductor thread core, is arranged on the outer refractory protection of described conductor thread core, it is characterized in that, the outside of described cable core also is provided with a fire-resistant separator, be provided with mineral-filled layer between described fire-resistant separator and the described cable core, the outside of described fire-resistant separator is coated with the non-magnetic metal protective sleeve layer;
Described fire-resistant separator adopts the wrapped ceramic silicon rubber layer that forms of ceramic silicon rubber twining package tape.
2. a kind of non-magnetic metal protective sleeve fire-proof cable according to claim 1 is characterized in that, the mineral-filled layer that described mineral-filled layer adopts the mineral matter rope to form.
3. a kind of non-magnetic metal protective sleeve fire-proof cable according to claim 2 is characterized in that, the wrapped belt of fire-resistant isinglass belt that described refractory protection adopts the fire-resistant isinglass belt twining package tape to make.
4. a kind of non-magnetic metal protective sleeve fire-proof cable according to claim 3 is characterized in that, described non-magnetic metal protective sleeve layer adopts the aluminium sheath layer of aluminum.
5. the described a kind of non-magnetic metal protective sleeve fire-proof cable of any one in 4 according to claim 1 is characterized in that the thickness of described non-magnetic metal protective sleeve layer is 0.3mm-1.5mm.
6. a kind of non-magnetic metal protective sleeve fire-proof cable according to claim 1 is characterized in that, the inside of described mineral-filled layer is filled with at least two described cable cores, and at least two described cable cores are yi word pattern and arrange.
7. a kind of non-magnetic metal protective sleeve fire-proof cable according to claim 1 is characterized in that, the inside of described mineral-filled layer is filled with at least three described cable cores, and at least three described cable cores are Chinese character pin-shaped arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511823 CN202816434U (en) | 2012-09-28 | 2012-09-28 | Nonmagnetic metal sheath fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511823 CN202816434U (en) | 2012-09-28 | 2012-09-28 | Nonmagnetic metal sheath fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816434U true CN202816434U (en) | 2013-03-20 |
Family
ID=47875279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511823 Expired - Lifetime CN202816434U (en) | 2012-09-28 | 2012-09-28 | Nonmagnetic metal sheath fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816434U (en) |
-
2012
- 2012-09-28 CN CN 201220511823 patent/CN202816434U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |