CN205004081U - Mineral substance insulated cable's structure - Google Patents
Mineral substance insulated cable's structure Download PDFInfo
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- CN205004081U CN205004081U CN201520817768.8U CN201520817768U CN205004081U CN 205004081 U CN205004081 U CN 205004081U CN 201520817768 U CN201520817768 U CN 201520817768U CN 205004081 U CN205004081 U CN 205004081U
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- cable
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Abstract
The utility model discloses a mineral substance insulated cable's structure, including a cable core, five cable cores closely center on into a ring -type, annular central intussuseption is filled with shellproof silk, annular outer surface coating has the mineral substance filling layer, fire -retardant layer in the outside cladding of mineral substance filling layer has, the outside cladding on interior fire -retardant layer has the fire -resistant inflation of mineral substance layer and metal shielding, still be provided with the second insulator layer between the first insulator layer and the low smoke zero halogen sheath bed of material, be provided with a plurality of dashpot along the axial on the pipe arm of second insulator layer, the edge of dashpot is provided with the sawtooth. The utility model discloses the mineral substance filling layer of well setting plays the guard action of fabulous thermal -insulated, fire -retardant fire prevention to can form the duricrust after heat is met on the fire -resistant inflation of mineral substance layer, in addition, the wearability and insulating nature of cable can effectively be improved to the first insulator layer, and the low smoke zero halogen sheath bed of material does not produce the toxic gas when the burning.
Description
Technical field
The utility model relates to power cable correlative technology field, specifically a kind of structure of mineral insulated cable.
Background technology
At present, along with developing rapidly of national economy, cable is widely used in various power station, such as, in the various field such as nuclear power station, thermal power station etc. and subway station, power plant, skyscraper building, military installations, oil platform, China, as one of cable products development & production base most important in the world, has possessed flame-retardant, high temperature resistant anti-low temperature, low inductance low noise, environmental protection, low smoke and zero halogen, antitermite protection against rodents, a series of cable products with special performance and special construction such as waterproof and dampproof at present.
Mineral insulated cable indulges bag welding procedure owing to adopting copper strips, and the easy solder skip in commissure, easily come off, water resistance is poor, bending, weld seam easily ftractures when burning, and without stable anti-collision structure, hot-face insulation performance is not highly stable; And common cable adopts Halogen material if PVC insulating barrier is as restrictive coating usually, its structure is not tight, it is crucial that once breaking out of fire BLV cable fire can produce a large amount of dense smoke, rescue personnel and the disaster-stricken common people often to be bottled up even death by suffocation by smog, make rescue work be difficult to carry out, rescue efficiency is low; In addition, people just wish after breaking out of fire, time enough is had all data to be steam again before whole network paralysis, and they are transferred to safe place, drop to minimum by the possibility that data run off, it is more that traditional cable ubiquity joint, and hardness is larger, the problems such as resistance to elevated temperatures is undesirable, can not meet the requirement that modernized society is higher.
Utility model content
The purpose of this utility model is the structure providing a kind of mineral insulated cable, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A structure for mineral insulated cable, comprises cable core, and described cable core is provided with five, and every root cable core includes conductor, is coated on the flame retardant coating of conductor outside surfaces and is coated on the color insulating barrier outside flame retardant coating, five cable cores closely surround into a ring-type, intracardiacly in ring-type are filled with anti-elater, and the outer surface of ring-type is enclosed with mineral-filled layer, the outside of described mineral-filled layer is coated with interior flame-retardant layer, the outside of described interior flame-retardant layer is coated with the fire-resistant expanding layer of mineral matter and metal shielding, the outside of described metal shielding is also coated with the first insulator layer and the low smoke and zero halogen sheath bed of material, coated described first insulator layer of the low smoke and zero halogen sheath bed of material, the second insulator layer is also provided with between described first insulator layer and the low smoke and zero halogen sheath bed of material, the pipe arm of described second insulator layer is provided with several dashpots vertically, several dashpot intervals are arranged, the edge of described dashpot is provided with sawtooth.
As further program of the utility model: described flame retardant coating is fire-resistant isinglass belt, described color insulating barrier is crosslinked polyolefin layer, and described first insulator layer is polyester belt.
As the utility model further scheme: described anti-elater adopts polyaryl fiber to make.
As the utility model further scheme: described metal shielding adopts stainless steel wire to make, and the diameter of stainless steel wire is 0.6mm.
As the utility model further scheme: the thickness of described interior flame-retardant layer is 1.2mm, the thickness of the fire-resistant expanding layer of described mineral matter is 2.0mm, and the thickness of described metal shielding is 1.2mm.
Compared with prior art, the beneficial effects of the utility model are:
1, the setting of anti-elater adds the pliability of cable and enhances tensile property.
2, the outer surface of ring-type is enclosed with mineral-filled layer, plays the protective effect of fabulous heat insulation, fire-retardant fireproof.
3, the fire-resistant expanding layer of mineral matter and metal shielding make cable have excellent anticollision performance and high-temperature resistance, and the fire-resistant expanding layer of mineral matter can form duricrust after heated, generates the thermal resistance material of many spaces, high-foaming.
4, the first insulator layer effectively can improve resistance to wear and the insulating properties of cable, and the low smoke and zero halogen sheath bed of material does not produce toxic gas when burning, and all has larger usefulness for rescuing and preventing and remedying pollution.
The pipe arm of 5, the second insulator layer is provided with several dashpots vertically, and the edge of dashpot is provided with sawtooth, and dashpot sawtooth when bending can effectively increase bending effect, prevents cable from breaking, improves the useful life of cable.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of structure of mineral insulated cable.
Fig. 2 is the schematic diagram of dashpot in a kind of structure of mineral insulated cable.
In figure: flame-retardant layer, the fire-resistant expanding layer of 7-mineral matter, 8-metal shielding, 9-first insulator layer, the 10-low smoke and zero halogen sheath bed of material, 11-second insulator layer, 12-dashpot in 1-conductor, 2-flame retardant coating, 3-color insulating barrier, the anti-elater of 4-, the mineral-filled layer of 5-, 6-.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, in the utility model embodiment, a kind of structure of mineral insulated cable, comprise cable core, described cable core is provided with five, every root cable core includes the conductor 1 that a naked thick copper lines is formed, the flame retardant coating 2 being coated on conductor 1 outer surface and the color insulating barrier 3 be coated on outside flame retardant coating 2, described color insulating barrier 3 is crosslinked polyolefin layer, described flame retardant coating 2 is fire-resistant isinglass belt, fire-resistant isinglass belt is a kind of high performance mica insulation goods, there is excellent resistance to elevated temperatures and flame resistance energy, during mica tape normality, there is good flexibility, substantially the volatilization of harmful vapors is there is not when meeting naked light burning.
Five cable cores closely surround into a ring-type, intracardiacly in ring-type be filled with anti-elater 4, described anti-elater 4 adopts polyaryl fiber to make, hot strength is high, wettability is low, dimensionally stable, heat-resisting good, wear-resisting, cut resistant, acidproof, shock-resistant, flame resistance is excellent, adds the pliability of cable and enhances tensile property; The outer surface of ring-type is enclosed with mineral-filled layer 5, and described mineral-filled layer 5 adopts aluminium hydroxide to make, and aluminium hydroxide heatproof is high, highly difficult combustion, plays the protective effect of fabulous heat insulation, fire-retardant fireproof; When a fire, flame retardant coating meeting decomposes, obviously reduce cable fire surface temperature, after decomposing, flame retardant coating is micro-network structure, and absorption carbonization molecule, plays good protective effect to conductor wire core in a large number.
The outside of described mineral-filled layer 5 is coated with interior flame-retardant layer 6, and the thickness of described interior flame-retardant layer 6 is 1.2mm; The outside of described interior flame-retardant layer 6 is coated with the fire-resistant expanding layer 7 of mineral matter and metal shielding 8, and the thickness of the fire-resistant expanding layer 7 of described mineral matter is 2.0mm; Described metal shielding 8 adopts stainless steel wire to make, and the diameter of stainless steel wire is 0.6mm, and the thickness of described metal shielding 8 is 1.2mm; The fire-resistant expanding layer 7 of mineral matter and metal shielding 8 make cable have excellent anticollision performance and high-temperature resistance, and the fire-resistant expanding layer 7 of mineral matter can form duricrust after heated, generates the thermal resistance material of many spaces, high-foaming.
The outside of described metal shielding 8 is also coated with the first insulator layer 9 and the low smoke and zero halogen sheath bed of material 10, coated described first insulator layer 9 of the low smoke and zero halogen sheath bed of material 10, described first insulator layer 9 is polyester belt, polyester belt has good fibre forming property, mechanical property, resistance to wear, creep resistance, low water absorbable and electrical insulation capability, effectively can improve resistance to wear and the insulating properties of cable, the low smoke and zero halogen sheath bed of material 10 does not produce toxic gas when burning, and all has larger usefulness for rescuing and preventing and remedying pollution; The second insulator layer 11 is also provided with between described first insulator layer 9 and the low smoke and zero halogen sheath bed of material 10, the pipe arm of described second insulator layer 11 is provided with several dashpots 12 vertically, several dashpot 12 intervals are arranged, the edge of described dashpot 12 is provided with sawtooth, dashpot 12 sawtooth when bending can effectively increase bending effect, prevent cable from breaking, improve the useful life of cable.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. the structure of a mineral insulated cable, comprise cable core, it is characterized in that, described cable core is provided with five, and every root cable core includes conductor (1), is coated on the flame retardant coating (2) of conductor (1) outer surface and is coated on flame retardant coating (2) color insulating barrier (3) outward, five cable cores closely surround into a ring-type, intracardiacly in ring-type are filled with anti-elater (4), and the outer surface of ring-type is enclosed with mineral-filled layer (5), the outside of described mineral-filled layer (5) is coated with interior flame-retardant layer (6), the outside of described interior flame-retardant layer (6) is coated with the fire-resistant expanding layer of mineral matter (7) and metal shielding (8), the outside of described metal shielding (8) is also coated with the first insulator layer (9) and the low smoke and zero halogen sheath bed of material (10), coated described first insulator layer (9) of the low smoke and zero halogen sheath bed of material (10), the second insulator layer (11) is also provided with between described first insulator layer (9) and the low smoke and zero halogen sheath bed of material (10), the pipe arm of described second insulator layer (11) is provided with several dashpots (12) vertically, several dashpots (12) interval is arranged, the edge of described dashpot (12) is provided with sawtooth.
2. the structure of a kind of mineral insulated cable according to claim 1, is characterized in that, described flame retardant coating (2) is fire-resistant isinglass belt, and described color insulating barrier (3) is crosslinked polyolefin layer, and described first insulator layer (9) is polyester belt.
3. the structure of a kind of mineral insulated cable according to claim 1, is characterized in that, described anti-elater (4) adopts polyaryl fiber to make.
4. the structure of a kind of mineral insulated cable according to claim 1, is characterized in that, described metal shielding (8) adopts stainless steel wire to make, and the diameter of stainless steel wire is 0.6mm.
5. the structure of a kind of mineral insulated cable according to claim 1, it is characterized in that, the thickness of described interior flame-retardant layer (6) is 1.2mm, and the thickness of the fire-resistant expanding layer of described mineral matter (7) is 2.0mm, and the thickness of described metal shielding (8) is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817768.8U CN205004081U (en) | 2015-10-20 | 2015-10-20 | Mineral substance insulated cable's structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817768.8U CN205004081U (en) | 2015-10-20 | 2015-10-20 | Mineral substance insulated cable's structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004081U true CN205004081U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520817768.8U Expired - Fee Related CN205004081U (en) | 2015-10-20 | 2015-10-20 | Mineral substance insulated cable's structure |
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| CN (1) | CN205004081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810319A (en) * | 2016-05-20 | 2016-07-27 | 常熟市鑫华电子科技有限公司 | Flexible oil-resistant cable used for magnetic switch |
| CN107274989A (en) * | 2017-05-03 | 2017-10-20 | 远东电缆有限公司 | A kind of the wisdom energy high ferro high abrasion-proof and high temperature resistant cable and its production technology |
-
2015
- 2015-10-20 CN CN201520817768.8U patent/CN205004081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810319A (en) * | 2016-05-20 | 2016-07-27 | 常熟市鑫华电子科技有限公司 | Flexible oil-resistant cable used for magnetic switch |
| CN107274989A (en) * | 2017-05-03 | 2017-10-20 | 远东电缆有限公司 | A kind of the wisdom energy high ferro high abrasion-proof and high temperature resistant cable and its production technology |
| CN107274989B (en) * | 2017-05-03 | 2023-05-19 | 远东电缆有限公司 | Intelligent energy high-speed rail high-wear-resistant high-temperature-resistant cable and production process thereof |
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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: 20160127 Termination date: 20191020 |