CN203102899U - Mineral-insulated fireproof cable - Google Patents
Mineral-insulated fireproof cable Download PDFInfo
- Publication number
- CN203102899U CN203102899U CN 201320048841 CN201320048841U CN203102899U CN 203102899 U CN203102899 U CN 203102899U CN 201320048841 CN201320048841 CN 201320048841 CN 201320048841 U CN201320048841 U CN 201320048841U CN 203102899 U CN203102899 U CN 203102899U
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- CN
- China
- Prior art keywords
- cable
- mica tape
- fire
- mineral
- mineral insulated
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Abstract
The utility model discloses a mineral-insulated fireproof cable, comprising a plurality of wire cables and a wrapping tape extruded out of the plurality of wire cables, wherein a sheath is sleeved out of the wrapping tape, a filling layer is filled between the wrapping tape and the wire cables, each wire cable comprises a conductor, a mica tape and an insulating layer, the mica tape is coated over the conductor, and the insulating layer is coated over the mica tape. According to the utility model, since the insulating layer is arranged out of the mica tape, flame resistance of the cable is improved, and thus, the cable which is not influenced by fire burning, does not become a combustion source and does not spread a fire is obtained.
Description
Technical field
The utility model relates to the cable technology field, particularly relates to a kind of mineral insulated cable.
Background technology
Along with the macromolecular material industrial expansion, the high molecular synthetic material fields such as building, chemical industry, military affairs and traffic that are applied to more and more widely are because the inflammability of macromolecular material.Therefore flame-retarded technology receives the concern in the whole world, along with various countries to the enhancing of environmental consciousness and the promulgation in succession of fire-retardant rules, the development in market, fire retardant market is very fast, and is particularly efficient, smoke suppressing is strong, and nontoxic mineral-type fire retardant more and more is subjected to user's favor.
Existing fireproof cable generally adopts wrapped mica tape on conductor wire core, switch in short-term when keeping fire, but this structure can make other power devices aggravate fire because of short circuit, and because cable is still charged, fire-fighting by water to injure rescue personnel self.
The utility model content
The purpose of this utility model provides a kind of mineral insulated cable, and the fireproofing of cable performance is improved.
For solving the problems of the technologies described above, the utility model comprises several wire cable and the band that is extruded on the several wire cable, and described band is with sheath outward, is filled with packed layer between described band and the cable, and described cable comprises conductor, mica tape and insulating barrier; Described mica tape is coated on outside the described conductor; Described insulating barrier is coated on outside the described mica tape.
As a kind of preferred version of the present utility model, be provided with the fire-resistant composite band of ceramic chemoprevention fire between described insulating barrier and the mica tape.
As a kind of preferred version of the present utility model, described band is the glass strap.
As a kind of preferred version of the present utility model, described packed layer is the mineral compound layer.
As a kind of preferred version of the present utility model, described mineral compound layer is a magnesium oxide layer.
As a kind of preferred version of the present utility model, described cable is four.
As a kind of preferred version of the present utility model, described cable also comprises gasket for packing, and described gasket for packing is surrounded by four cables.
As a kind of preferred version of the present utility model, described sheath is a low smoke, zero halogen level sheath.
Technique effect of the present utility model is to be provided with insulating barrier outside mica tape makes the anti-flammability of cable be improved, thereby realizing becoming a kind ofly is not afraid of fire burns, do not become burning things which may cause a fire disaster, do not propagate the cable of the condition of a fire.The fire-resistant composite band of one deck pottery chemoprevention fire is set between insulating barrier and the mica tape, and it can guarantee the insulation property of cable when cable spontaneous combustion and outside breaking out of fire, further improve the anti-flammability of cable.Inorganic material in the packed layer has been carried out crosslinking Treatment by the high-power electron beam that rebatron produces to inorganic compound, thereby make cable can stand work high temperature, (the flame temperature: 750 ℃: for fire time: 180min: cooling time: 12min of cable conductor fire resistance test in the testing process up to 125 ℃; ).Cable adopts multicore structure can reduce by 1-2 cross section grade than common cable under the situation of the identical magnitude of current of transmission.
Description of drawings
Below in conjunction with accompanying drawing and preferred implementation the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, mineral insulated cable of the present utility model comprises four cables and the band 4 that is extruded on the several wire cable, the described band 4 outer sheaths 5 that are with, be filled with packed layer 6 between described band 4 and the cable, described cable comprises conductor 1, mica tape 2 and insulating barrier 3; Described mica tape 2 is coated on outside the described conductor 1; Described insulating barrier 3 is coated on outside the described mica tape 2.Described cable also comprises gasket for packing 7, and described gasket for packing 7 is surrounded by four cables.What deserves to be mentioned is that cable also can be a single-core cable, promptly has only the single line cable.
Wherein, be provided with the fire-resistant composite band of ceramic chemoprevention fire between described insulating barrier and the mica tape, can be when cable spontaneous combustion and the outside breaking out of fire by the fire-resistant composite band of ceramic chemoprevention fire, guarantee the insulation property of cable, further improve the anti-flammability of cable, and avoid other power devices to aggravate fire, and because cable is still charged, fire-fighting by water can injure rescue personnel self because of short circuit.Described band is the glass strap.Described packed layer is the mineral compound layer, and described mineral compound can be a magnesium oxide layer.Described sheath is a low smoke, zero halogen level sheath.Inorganic material in the packed layer has been carried out crosslinking Treatment by the high-power electron beam that rebatron produces to inorganic compound, thereby makes cable can stand work high temperature up to 125 ℃.
By the utility model insulating barrier is set outside mica tape and makes the anti-flammability of cable be improved, thereby realizing becoming a kind ofly is not afraid of fire burns, do not become burning things which may cause a fire disaster, do not propagate the cable of the condition of a fire.Cable adopts multicore structure can reduce by 1-2 cross section grade than common cable under the situation of the identical magnitude of current of transmission.
Below the preferred embodiment of the invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the invention spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (8)
1. a mineral insulated cable comprises several wire cable and the band that is extruded on the several wire cable, and described band is with sheath outward, is filled with packed layer between described band and the cable, it is characterized in that, described cable comprises conductor, mica tape and insulating barrier; Described mica tape is coated on outside the described conductor; Described insulating barrier is coated on outside the described mica tape.
2. mineral insulated cable as claimed in claim 1 is characterized in that, is provided with the fire-resistant composite band of ceramic chemoprevention fire between described insulating barrier and the mica tape.
3. mineral insulated cable as claimed in claim 1 is characterized in that, described band is the glass strap.
4. mineral insulated cable as claimed in claim 1 is characterized in that, described packed layer is the mineral compound layer.
5. mineral insulated cable as claimed in claim 4 is characterized in that, described mineral compound layer is a magnesium oxide layer.
6. mineral insulated cable as claimed in claim 1 is characterized in that, described cable is four.
7. mineral insulated cable as claimed in claim 6 is characterized in that, also comprises gasket for packing, and described gasket for packing is surrounded by four cables.
8. mineral insulated cable as claimed in claim 1 is characterized in that, described sheath is a low smoke, zero halogen level sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048841 CN203102899U (en) | 2013-01-29 | 2013-01-29 | Mineral-insulated fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048841 CN203102899U (en) | 2013-01-29 | 2013-01-29 | Mineral-insulated fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203102899U true CN203102899U (en) | 2013-07-31 |
Family
ID=48854286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048841 Expired - Lifetime CN203102899U (en) | 2013-01-29 | 2013-01-29 | Mineral-insulated fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203102899U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762026A (en) * | 2014-02-10 | 2014-04-30 | 无锡市群星线缆有限公司 | Fire-resisting cable filled with metallic oxide |
| CN103903792A (en) * | 2014-03-06 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Ceramic silicon rubber fireproof control cable |
| CN105655011A (en) * | 2016-04-01 | 2016-06-08 | 江苏江扬电缆有限公司 | Flexible mineral insulated cable and production method thereof |
-
2013
- 2013-01-29 CN CN 201320048841 patent/CN203102899U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762026A (en) * | 2014-02-10 | 2014-04-30 | 无锡市群星线缆有限公司 | Fire-resisting cable filled with metallic oxide |
| CN103903792A (en) * | 2014-03-06 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Ceramic silicon rubber fireproof control cable |
| CN105655011A (en) * | 2016-04-01 | 2016-06-08 | 江苏江扬电缆有限公司 | Flexible mineral insulated cable and production method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |