CN203659466U - Mineral insulation fireproof cable - Google Patents
Mineral insulation fireproof cable Download PDFInfo
- Publication number
- CN203659466U CN203659466U CN201420041114.6U CN201420041114U CN203659466U CN 203659466 U CN203659466 U CN 203659466U CN 201420041114 U CN201420041114 U CN 201420041114U CN 203659466 U CN203659466 U CN 203659466U
- Authority
- CN
- China
- Prior art keywords
- sheath
- cable
- copper pipe
- mineral insulated
- seamless copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a mineral insulation fireproof cable, comprising conductors intertwisted by a plurality of high conductivity copper cores and a first sheath; the outer surface of each conductor adheres a magnesium oxide powder insulating layer; the insulating layer is wrapped by a fireproof threaded seamless copper pipe sheath; a second sheath covers the seamless copper pipe sheath; the conductor, insulating layer, seamless copper pipe sheath and the second sheath form a cable core; a polyethylene filling layer is arranged among cable cores and the first sheath. The mineral insulation fireproof cable has the characteristics of large current-carrying capacity, overload resistance, water resistance, fire protection, corrosion resistance, mechanical damage resistance and long service life, is halogen-free and non-poisonous and is suitable fire-fighting.
Description
Technical field
The utility model relates to cable technology field, is a kind of mineral insulated cable specifically.
Background technology
Fireproof electric wire and cable is the general name with fire protecting performance electric wire, is conventionally divided into flame-retardant electric wire and cable and fire-resistant wire and cable two classes, and from fire safety and fire-extinguishing and lifesaving, people are more and more higher to the requirement of electric wire fire protecting performance.Flame-retardant electric wire and cable is to have retardance, delay flame along the spreading of electric wire, and fire is not expanded, and fire-resistant wire and cable can keep the operation of certain hour in flame combustion situation, keeps the integrality of circuit.
Common above-mentioned two kinds of electric wire ampacitys are smaller, resistance to year poor-performing, and water resistance is bad, easily infiltrate moisture, cause and puncture electric wire, suffering bending, flatten, the distortion such as torsion, easily produce mechanical damage, occur electric leakage situation, safety can not get guarantee, and cable insulation plastic layer is easily aging, life-span is short, life cycle is short, and along with growth in the living standard, the performance of above-mentioned two kinds of fireproof electric wire and cables has no longer met people's demand.
Utility model content
The purpose of this utility model is to provide a kind of mineral insulated cable, and this mineral insulated cable ampacity is large, resistance to overload, and effectively waterproof fireproofing, blast protection, corrosion-resistant, resistance to mechanical damage, the life-span is long, and Halogen is nontoxic, can be applicable to fire-fighting.
The technical solution of the utility model is: a kind of mineral insulated cable, comprise many with the stranded conductor forming of the copper core of high conductivity and the first sheath, on described conductor outer surface, adhere to the insulating barrier of magnesium oxide powder, described insulating barrier is extruded with outward for the screw-shaped seamless copper pipe sheath of preventing fires, described seamless copper pipe sheath is added with one deck the second sheath outward, described conductor, insulating barrier, seamless copper pipe sheath and the second sheath have formed cable core, between described cable core and the first sheath, polyethylene packed layer are set.
For by electromagnetic-field-shielded in cable inside, described the first sheath is embedded with the screen of metal material.
Further, the material of described the first sheath and the second sheath is polyethylene.
In order to increase the intensity of cable, described cable core center is also provided with reinforcement steel core.
In order to reduce production cost, to be convenient to manufacture, described screen is sheet iron net.
The utility model has the advantage of: the one, because magnesium oxide powder has than the better conductive coefficient of plastics, same working temperature, this mineral insulated cable ampacity is large, can bear larger overload, resistance to overload; The 2nd, because this mineral insulated cable adopts screw-shaped seamless copper pipe sheath, terminal connects and adopts again lute, effectively waterproof and good bending property, be a kind of can the high-tech product of long period of soaking in water; The 3rd, this seamless copper pipe sheath is tightly compacted by magnesium oxide, imflammable gas, and oil gas, flame just can not arrive the electric equipment being connected with cable, fire prevention effectively, blast protection; The 4th, at additional one deck the first sheath of seamless copper pipe sheath, corrosion-resistant; The 5th, this mineral insulated cable is in the course of processing, and magnesium oxide is through high compression, and the relative position between conductor and the second sheath is difficult for changing, resistance to mechanical damage; The 6th, this mineral insulated cable all adopts inorganic material, is difficult for agingly, and the life-span is long, even if can not produce smog under high-temp combustion, Halogen is nontoxic, can be applicable to fire-fighting.
Brief description of the drawings
Fig. 1 is the mineral insulated cable cross-sectional structure schematic diagram in embodiment.
Label declaration: 1-polyethylene packed layer 2-first sheath 3-screen 4-conductor 5-the second sheath 6-seamless copper pipe sheath 7-insulating barrier 8-strengthens steel core.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.
With reference to legend 1, a kind of mineral insulated cable, comprise many with the stranded conductor forming 4 of the copper core of high conductivity and the first sheath 2, on described conductor 4 outer surfaces, adhere to the insulating barrier 7 of magnesium oxide powder, outer being extruded with for the screw-shaped seamless copper pipe sheath 6 of preventing fires of described insulating barrier 7, outer one deck the second sheath 5 that is added with of described seamless copper pipe sheath 6, described conductor 4, insulating barrier 7, seamless copper pipe sheath 6 and the second sheath 5 have formed cable core, between described cable core and the first sheath 2, polyethylene packed layer 1 are set.
In one embodiment, for by electromagnetic-field-shielded in cable inside, described the first sheath 2 is embedded with the screen 3 of metal material.
In one embodiment, the material of described the first sheath 2 and the second sheath 5 is polyethylene.
In one embodiment, in order to increase the intensity of cable, described cable core center is also provided with strengthens steel core 8.
In one embodiment, in order to reduce production cost, be convenient to manufacture, described screen 3 is sheet iron net.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a mineral insulated cable, comprise many with the stranded conductor forming of the copper core of high conductivity and the first sheath, it is characterized in that: the insulating barrier that adheres to magnesium oxide powder on described conductor outer surface, described insulating barrier is extruded with outward for the screw-shaped seamless copper pipe sheath of preventing fires, described seamless copper pipe sheath is added with one deck the second sheath outward, described conductor, insulating barrier, seamless copper pipe sheath and the second sheath have formed cable core, between described cable core and the first sheath, polyethylene packed layer are set.
2. mineral insulated cable according to claim 1, is characterized in that: described the first sheath is embedded with the screen of metal material.
3. mineral insulated cable according to claim 1, is characterized in that: the material of described the first sheath and the second sheath is polyethylene.
4. mineral insulated cable according to claim 1, is characterized in that: described cable core center is also provided with reinforcement steel core.
5. mineral insulated cable according to claim 2, is characterized in that: described screen is sheet iron net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041114.6U CN203659466U (en) | 2014-01-23 | 2014-01-23 | Mineral insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041114.6U CN203659466U (en) | 2014-01-23 | 2014-01-23 | Mineral insulation fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659466U true CN203659466U (en) | 2014-06-18 |
Family
ID=50925830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041114.6U Expired - Fee Related CN203659466U (en) | 2014-01-23 | 2014-01-23 | Mineral insulation fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981332A (en) * | 2017-05-23 | 2017-07-25 | 成都飞航沛腾科技有限公司 | A kind of high-strength fire-retardant cable |
-
2014
- 2014-01-23 CN CN201420041114.6U patent/CN203659466U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981332A (en) * | 2017-05-23 | 2017-07-25 | 成都飞航沛腾科技有限公司 | A kind of high-strength fire-retardant cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204102608U (en) | The environment-friendly type insulated cable of a kind of high pressure resistant intrinsic safety | |
| CN202796212U (en) | Anti-corrosion fireproof cable | |
| CN204332473U (en) | New ceramics SiClx rubber strip fireproof environment-friendly type three-core cable | |
| CN203659466U (en) | Mineral insulation fireproof cable | |
| CN202711849U (en) | Mining communication cable | |
| CN203085203U (en) | A waterproof and fireproof cable | |
| CN203503334U (en) | Mineral insulated fireproof cable | |
| CN203134436U (en) | High flame retardant fireproof power cable | |
| CN202018848U (en) | Low-voltage aluminum alloy power cable | |
| CN202694865U (en) | Flame-retardant shielding control cable for polyethylene insulated polyvinyl chloride sheath | |
| CN204303392U (en) | A kind of environment-friendly type electric wire | |
| CN203026243U (en) | Anti-corrosion aluminum alloy power cable | |
| CN203858908U (en) | Power cable for cross-river tunnel | |
| CN203746525U (en) | Waterproof and ultraviolet-resistant special cable | |
| CN202076039U (en) | Low voltage single core aluminium alloy power cable | |
| CN201946370U (en) | Fire-resistant type mineral insulated cable | |
| CN204991211U (en) | Fire -retardant flexible fireproof cable of low smoke and zero halogen | |
| CN204375444U (en) | Heat insulation type mineral insulated cable | |
| CN204614469U (en) | A kind of fire resistant flexible high-temperature insulation cable | |
| CN203787197U (en) | Antiflaming polyolefin sheath power cable | |
| CN203760191U (en) | Nanometer ultrahigh fire-resistant power cable | |
| CN204102613U (en) | A kind of flexible mineral compound inslation metallic sheath fire-resisting cable | |
| CN204792022U (en) | Novel polyvinyl chloride cable conductor | |
| CN204808922U (en) | Resistance to compression electric wire | |
| CN202838999U (en) | Mineral-insulated fireproof cable |
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 |
Granted publication date: 20140618 Termination date: 20190123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |