CN205881507U - Insulating fireproof cable of flexible mineral substance of high strength - Google Patents
Insulating fireproof cable of flexible mineral substance of high strength Download PDFInfo
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- CN205881507U CN205881507U CN201620644275.3U CN201620644275U CN205881507U CN 205881507 U CN205881507 U CN 205881507U CN 201620644275 U CN201620644275 U CN 201620644275U CN 205881507 U CN205881507 U CN 205881507U
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Abstract
The utility model discloses an insulating fireproof cable of flexible mineral substance of high strength relates to the cable field, and the device includes that the setting has the filling layer flame retardant coating, insulating intraformational cable conductor, the outer packing of insulating layer, and the filling layer wraps up outward in proper order has fire -resistant covering, fire -retardant layer, the outer jacket of winding, the utility model has the characteristics of fire -resistant, current -carrying capacity is big, impulse withstand voltage, resistant mechanical damage, do not have steamed nontoxic, explosion -proof, waterproof, corrosion -resistant, longe -lived, safety, high strength, flexible, the resistant mechanical oscillation of structure, resistantly do not transship, high temperature resistant etc.
Description
Technical field
This utility model relates to field of cables, is specifically related to a kind of high-strength flexible mineral insulation fireproof cable.
Background technology
Mineral insulated cable (Mineral Insulated Cable) is called for short MI cable.Can divide by architectural characteristic at present
For rigidity and flexibility two kinds.
Rigidity mineral insulated cable is invented relatively early, Switzerland engineer ArnoldFrancois Borel just proposition in 19 end of the centurys
The imagination of mineral insulated cable, and in patented power in 1896,1934-1936 method, English developed quickly after putting into production.
China also develops in the sixties in last century, starts for military field, and the mid-80 starts industrialized production, and progressively by
Building field accepts comprehensively.Due to the rigidity mineral insulated cable natural deficiency in structure design, cause it in performance, production
And the aspect such as lay and all there is certain defect.In developed country particularly European Union member countries, the anti-thermoelectricity of flexible mineral insulation
The emergence of cable, the use of rigidity mineral insulated cable is substituted.
The invention of flexible mineral insulation cable is later, is about being born in Switzerland Si Tute electricity at eighties of last century the seventies
Cable company.
Conventional flex mineral insulated cable difficulty bends, pressure grade is low, circuit design and construction difficulty or ease produce and lay peace
Full hidden danger.
Utility model content
For defect present in prior art, the purpose of this utility model is to provide a kind of high-strength flexible mineral
Insulated cable.
For reaching object above, this utility model adopts the technical scheme that: a kind of high-strength flexible mineral insulation is prevented
Thermoelectricity cable, including cable conductor, described cable conductor is enclosed with flame retardant coating, insulating barrier the most successively, outside described insulating barrier
Be enclosed with packed layer, outside described packed layer, be enclosed with fire-resistant lapping layer, flame-retardant layer, outer jacket successively, described flame retardant coating, fire-resistant around
Covering is calcining mica tape, and the material of described insulating barrier is mineral insulation material, and described packed layer is grouting magnesium oxide or nothing
Machine mineral rope.
On the basis of technique scheme, described cable conductor is many stranded copper conductors.
On the basis of technique scheme, the calcining mica tape overlap of described flame retardant coating and fire-resistant lapping layer is wrapped to be set
Put.
On the basis of technique scheme, the Duplication of the calcining mica tape of described flame retardant coating and fire-resistant lapping layer is more than
50%.
On the basis of technique scheme, in described packed layer, there are four groups of cores.
On the basis of technique scheme, the mineral insulation material of described insulating barrier is magnesium oxide.
On the basis of technique scheme, the material of described flame-retardant layer is the fire-resistant composite band of flame retardant type ceramic.
On the basis of technique scheme, the material of described outer jacket is low smoke halogen-free flame-retardant polyolefin.
Compared with prior art, the utility model has the advantage of:
(1) a kind of high-strength flexible mineral insulation fireproof cable in this utility model, flame retardant coating, fire-resistant lapping layer are
Calcining mica tape is constituted, and it is pressure, toleration is higher, and various conventional methods are laid, and without laying potential safety hazard, packed layer is adopted
With grouting magnesium oxide or inorganic mineral rope, the tensile strength of cable can be increased, can the most still keep the highest exhausted
Edge resistance, due to flame retardant coating, fire-resistant lapping layer and the structurally flexible of packed layer, causes cable to have the characteristic of good bending property.
(2) calcining mica tape Duplication more than 50% primarily to ensure wrapped after insulated wire cores smooth surface put down
Whole.
(3) bending stress when cable conductor can reduce bending by many copper conductors are stranded when being constituted.
(4) material of insulating barrier is mineral insulation material magnesium oxide, can not burn or combustion-supporting mainly due to magnesium oxide, due to
The fusing point of copper is 1083 DEG C, the fusing point of magnesium oxide is 2800 DEG C, and therefore this kind of cable can be in the fire feelings of the fusing point close to copper
Continue under condition to keep power supply.
(5) material of flame-retardant layer is the fire-resistant composite band of flame retardant type ceramic, and its sealing property is excellent, excellent fireproof performance.
(6) material of outer jacket is low smoke halogen-free flame-retardant polyolefin, and fire resistance is good, and elongation at break is high, resistance to cracking
Can be good, processing characteristics is excellent.
Accompanying drawing explanation
Fig. 1 is the section structure schematic diagram of fireproof cable described in this utility model embodiment；
In figure: 1-cable conductor, 2-flame retardant coating, 3-insulating barrier, 4-packed layer, the fire-resistant lapping layer of 5-, 6-flame-retardant layer, outside 7-
Sheath, 8-core.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Shown in Figure 1, this utility model embodiment provides a kind of high-strength flexible mineral insulation fireproof cable, including
Core 8, described core 8 includes cable conductor 1, flame retardant coating 2, insulating barrier 3, and described flame retardant coating 2, insulating barrier 3 are the most successively
Wrapping up described cable conductor 1, cable conductor 1 is many stranded copper conductors, can reduce bending stress during bending, in insulation
Layer 3 is wrapped with packed layer 4, and wherein flame retardant coating 2 is the overlapping wrapped setting of calcining mica tape, and it is pressure, toleration is higher, weight
Gently, various conventional methods are laid, without laying potential safety hazard, structural flexibility, it is simple to bending, wherein calcine the overlap of mica tape
Rate is more than 50%, it is ensured that the insulated wire cores smooth surface after wrapped is smooth, comes off without Muscovitum, and the material of insulating barrier 3 is ore deposit
Substance insulation material magnesium oxide is constituted, and magnesium oxide can not burn or combustion-supporting, due to the fusing point of copper be 1083 DEG C, the fusing point of magnesium oxide be
2800 DEG C, therefore this cable can continue to keep power supply under the fire condition close to the fusing point of copper, and packed layer 4 uses grouting oxygen
Changing magnesium or inorganic mineral rope is constituted, the insulated wire cores in cable can be made stable relative to position, the tension that can increase cable is strong
Degree, good bending property, can the most still keep the highest insulation resistance, in packed layer 4, have four groups of cores 8, wherein
The core 8 of one group of small cross sections is ground wire, and relatively major break down is passed through in protection in cable generation Fault of Insulating Breakdown or cable conductor
During electric current, outer layer is burnt, the inside being made up of cable conductor 1, flame retardant coating 2, insulating barrier 3, packed layer 4, there is pressure, tolerance
Property higher, structural flexibility, it is simple to bending, can continue the holding advantage such as power supply under the fire condition close to the fusing point of copper.
Outer fire-resistant lapping layer 5, flame-retardant layer 6, the outer jacket 7 of being enclosed with successively of packed layer 4, the most fire-resistant lapping layer 5 is calcining
The overlapping wrapped setting of mica tape, it is pressure, toleration is higher, lightweight, and various conventional methods are laid, hidden without laying safety
Suffer from, structural flexibility, it is simple to bending, wherein calcine the Duplication of mica tape more than 50%, it is ensured that the insulated wire cores after wrapped
Smooth surface is smooth, comes off without Muscovitum, and the material of flame-retardant layer 6 is the fire-resistant composite band of flame retardant type ceramic, and the material of outer jacket 7 is
Low smoke halogen-free flame-retardant polyolefin, the outside being made up of fire-resistant layer 5 of having a swollen head, flame-retardant layer 6, outer jacket 7, there is low cigarette, Halogen, low corruption
Erosion, low toxicity, pressure, toleration is higher, structural flexibility, it is simple to bending, elongation at break is high, and resistance to cracking can be good, sealing property
Excellent, excellent fireproof performance, the advantage such as do not fall off after burning.
This utility model is not only limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model
Go out other various forms of products, no matter but in its shape or structure, make any change, every have and this utility model phase
Same or akin technical scheme, all within its protection domain.
Claims (8)
1. a high-strength flexible mineral insulation fireproof cable, including core (8), described core (8) includes cable conductor
(1), flame retardant coating (2), insulating barrier (3), described flame retardant coating (2), insulating barrier (3) wrap up described cable conductor the most successively
(1), described core (8) is wrapped with packed layer (4), and described packed layer (4) is enclosed with fire-resistant lapping layer (5), fire-retardant the most successively
Layer (6), outer jacket (7), it is characterised in that: described flame retardant coating (2), fire-resistant lapping layer (5) they are calcining mica tape, described insulating barrier
(3) material is mineral insulation material, and described packed layer (4) is grouting magnesium oxide or inorganic mineral rope.
2. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described cable is led
Body (1) is many stranded copper conductors.
3. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described flame retardant coating
And the overlapping wrapped setting of calcining mica tape of fire-resistant lapping layer (5) (2).
4. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 3, it is characterised in that: described flame retardant coating
And the Duplication of calcining mica tape of fire-resistant lapping layer (5) is more than 50% (2).
5. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described packed layer
(4) there are four groups of cores (8) in.
6. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described insulating barrier
(3) mineral insulation material is magnesium oxide.
7. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described flame-retardant layer
(6) material is the fire-resistant composite band of flame retardant type ceramic.
8. a kind of high-strength flexible mineral insulation fireproof cable as claimed in claim 1, it is characterised in that: described outer jacket
(7) material is low smoke halogen-free flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644275.3U CN205881507U (en) | 2016-06-24 | 2016-06-24 | Insulating fireproof cable of flexible mineral substance of high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644275.3U CN205881507U (en) | 2016-06-24 | 2016-06-24 | Insulating fireproof cable of flexible mineral substance of high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881507U true CN205881507U (en) | 2017-01-11 |
Family
ID=57691008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620644275.3U Active CN205881507U (en) | 2016-06-24 | 2016-06-24 | Insulating fireproof cable of flexible mineral substance of high strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881507U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068260A (en) * | 2017-04-20 | 2017-08-18 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
| CN108565046A (en) * | 2018-06-13 | 2018-09-21 | 南京全信传输科技股份有限公司 | Fire resisting data/address bus preparation process and cable |
| CN109215875A (en) * | 2018-09-28 | 2019-01-15 | 广东思柏科技股份有限公司 | It is a kind of without the flexible wide temperature band power cable of modeling |
-
2016
- 2016-06-24 CN CN201620644275.3U patent/CN205881507U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068260A (en) * | 2017-04-20 | 2017-08-18 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
| CN108565046A (en) * | 2018-06-13 | 2018-09-21 | 南京全信传输科技股份有限公司 | Fire resisting data/address bus preparation process and cable |
| CN109215875A (en) * | 2018-09-28 | 2019-01-15 | 广东思柏科技股份有限公司 | It is a kind of without the flexible wide temperature band power cable of modeling |
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