CN206058991U - A kind of mineral insulation is from lock armo flexible fire-proof cable - Google Patents
A kind of mineral insulation is from lock armo flexible fire-proof cable Download PDFInfo
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- CN206058991U CN206058991U CN201620904091.6U CN201620904091U CN206058991U CN 206058991 U CN206058991 U CN 206058991U CN 201620904091 U CN201620904091 U CN 201620904091U CN 206058991 U CN206058991 U CN 206058991U
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Abstract
The utility model discloses a kind of mineral insulation is from lock armo flexible fire-proof cable, it is made up of multiple insulated wire cores and protection outer layer, insulated wire cores include conductor, mica tape insulating barrier and ceramic polyolefin insulation layer, the outside of conductor is surrounded with mica tape insulating barrier and ceramic polyolefin insulation layer successively, it is described to protect the wrapped outside in insulated wire cores of outer layer, protection outer layer includes glass fibre belt, ceramic polyolefin bed course and from lock armo external sheath layer, it is surrounded with ceramic polyolefin bed course outside glass fibre belt successively and from lock armo external sheath layer, alkali-free glass fibre silk is filled between the ceramic polyolefin insulation layer and glass fiber tape layer gap.The construction of cable novel and unique, efficiently solve cable insulation easily to absorb water the problem made moist, improve fire-retardant fireproof function, significantly reduce Cable Bending Radius, the transmission of electricity function that can also bring into normal play at relatively high temperatures, improves the emergent guarantee of cable fire.
Description
Technical field
This utility model is related to the improvement of field of cable technology, and in particular to flexible from lock armo to a kind of mineral insulation
Fireproof cable.
Background technology
Electric wire traditional at present uses high-molecular organic material due to insulant, therefore under flame condition
Easily it is carbonized so as to lose insulating effect, while conventional rigid mineral insulated cable is suffered from the drawback that：Drawing copper tubes technique makes
Single continuous length is limited, need to continue on during installation joint, increase material and cost of labor, and need it is right
Joint electric property makees special handling.35mm2And it is single-core cable above, installation procedure is more, and is unfavorable for each core electricity
The equilibrium of gas parameter；The solid copper conductor of core rod type, it is very rigid so that its maximum cross-section is usually 400mm2.Magnesia powder
Insulating barrier is served as at end, is also easy to produce became uneven phenomenon, and technique slightly mistake will puncture.BTTZ and YTTW cables constantly make
With special joint, it is therefore desirable to especially process and still remained powered on ensureing to bear under flame after Water spray.Once temperature in fire compared with
Height, copper conductor heart yearn hinder following temperature rising and increase, therefore BTTZ droop loss is big in fire.Metallic sheath adopts segmentation drawing process,
Heavy in section 400mm2Single to be no longer than 60 meters, simultaneous oxidation magnesium has pollution, high cost to environment, and efficiency is difficult to improve.But
With the important job facilities such as Chinese society rapid development of economy, subway, tunnel, power plant, nuclear power station and large supermarket, meeting
It is more and more where the densely populated places such as exhibition center, requirement is proposed to the security performance under fire condition, it is desirable to which cable is in fire
Remain to maintain a period of time normal power supply in the case of flame, in order to escaping and rescuing.
Utility model content
The purpose of this utility model is for the problems referred to above, it is proposed that a kind of mineral insulation is from lock armo fire resistant flexible electricity
Cable, effectively solve existing cable insulating barrier easily water suction make moist, not flexible cable and the problems such as big bending radius.
In order to solve above-mentioned technical problem, this utility model is accomplished by：
, from lock armo flexible fire-proof cable, the fireproof cable is outer by multiple insulated wire cores and protection for a kind of mineral insulation
Layer composition, insulated wire cores include conductor, mica tape insulating barrier and ceramic polyolefin insulation layer, and the conductor is single-core cable line
Core or multicore cable core is stranded forms, the outside of conductor is surrounded with mica tape insulating barrier and ceramic polyolefin insulation successively
Layer, it is described to protect the wrapped outside in multiple insulated wire cores of outer layer, protection outer layer to include glass fibre belt, ceramic polyolefin
Bed course and from lock armo external sheath layer, glass fibre belt is arranged on the outside of ceramic polyolefin insulation layer, glass fiber tape
Layer is outside to be surrounded with ceramic polyolefin bed course successively and from lock armo external sheath layer, the ceramic polyolefin insulation layer with
Alkali-free glass fibre silk is filled between glass fiber tape layer gap.
Further, the needs according to installation environment, this utility model are also provided with fire-retardant external sheath layer, the resistance
Combustion external sheath layer is arranged on the outside from lock armo external sheath layer.
Preferably, it is described from lock armo external sheath layer be the lock armo layer by made by aluminium strip, copper strips, stainless steel band.
The conductor is soft copper conductor thread core.
During use, this utility model is provided with double fire laggings, under 650 DEG C -3000 DEG C of flame, can sinter rapidly
Into hard ceramic-like duricrust, do not ftracture, do not melt, do not drip, the duricrust can be effectively isolated thermal-flame to line-internal
Infringement, it is ensured that circuit in case of fire unimpeded；Under rated operational voltage, flame temperature is not less than 750 DEG C to cable,
It is continuous for fuse in fiery time 90min.
Cable can bear the lateral pressure of 9000N using from lock armo, compared with 3000～6000N of band-armored
Big many of anti-side pressure.Therefore there is more preferable stability compared with band-armored when high-performance linkage armored cable lays, can
To improve cable machinery performance, strengthen impact resistance, make cable that there is good bending property.
Compared with prior art, this utility model has the advantage that：
This utility model provides a kind of mineral insulation from lock armo flexible fire-proof cable, structure novel and unique, effectively
Easily water suction is made moist to solve the problems, such as cable insulation, improves fire-retardant fireproof function, significantly reduces cable bend half
Footpath, increased which is flexible, improve the emergent guarantee of cable fire, and can by common cable mode joint, without the need for special joint,
Its main material adopts inorganic mineral or mineral compound to constitute, and itself will not cause fire, it is impossible to which burning is combustion-supporting, together
When with more than 1500 DEG C of higher melt, even if the transmission of electricity function that can also bring into normal play under flame condition, be a kind of real
Fireproof cable in meaning.
Description of the drawings
Fig. 1 is cross-section of cable structural representation of the present utility model.
In figure, each labelling is respectively：1st, conductor, 2, mica tape insulating barrier, 3, ceramic polyolefin insulation layer, 4, alkali-free
Glass fiber, 5, glass fibre belt, 6, ceramic polyolefin bed course, 7, from lock armo external sheath layer.
Specific embodiment
Specific embodiment of the present utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of mineral insulation is from lock armo flexible fire-proof cable, the fireproof cable is by multiple covered wires
Core and protection outer layer composition, insulated wire cores include conductor 1, mica tape insulating barrier 2 and ceramic polyolefin insulation layer 3, described to lead
Body is single-core cable core or multicore cable core is stranded forms, and the outside of conductor is surrounded with mica tape insulating barrier and pottery successively
Porcelain polyolefin insulation layer, the wrapped outside in multiple insulated wire cores of the protection outer layer, protection outer layer include glass fiber tape
Layer 5, ceramic polyolefin bed course 6 and from lock armo external sheath layer 7, glass fibre belt is arranged on ceramic polyolefin insulation
Layer outside, is surrounded with ceramic polyolefin bed course and by made by aluminium strip, copper strips, stainless steel band successively outside glass fibre belt
From between lock armo external sheath layer, the ceramic polyolefin insulation layer and glass fiber tape layer gap be filled with alkali-free glass
Cellosilk 4.
Due to all adopting inorganic mineral or mineral chemical combination from lock armo flexible fireproof mineral insulated cable main material
Thing is constituted, and itself will not cause fire, it is impossible to which burning is combustion-supporting.And these materials typically all have more than 1500 DEG C compared with
High-melting-point, therefore such fireproof cable is used under flame condition, the transmission of electricity work(that can also bring into normal play within the regular hour
Can, it is fully able to meet the requirement of JG/T313-2014, GB/T13033.1-2007 and Britain's refractory standard BS6387, is a kind of
Fireproof cable truly.
The above is only embodiment of the present utility model, is stated again, for the ordinary skill people of the art
For member, on the premise of without departing from this utility model principle, some improvement can also be carried out to this utility model, these improvement
Also list in this utility model scope of the claims.
Claims (4)
1. a kind of mineral insulation is from lock armo flexible fire-proof cable, it is characterised in that：The fireproof cable is by multiple covered wires
Core and protection outer layer composition, insulated wire cores include conductor, mica tape insulating barrier and ceramic polyolefin insulation layer, and the conductor is
Single-core cable core or multicore cable core is stranded forms, the outside of conductor is surrounded with mica tape insulating barrier and ceramic successively
Polyolefin insulation layer, the wrapped outside in multiple insulated wire cores of the protection outer layer, protection outer layer include glass fibre belt, pottery
Porcelain polyolefin bed course and from lock armo external sheath layer, glass fibre belt is arranged on the outside of ceramic polyolefin insulation layer,
It is surrounded with ceramic polyolefin bed course outside glass fibre belt successively and from lock armo external sheath layer, the ceramic polyene
Alkali-free glass fibre silk is filled between hydrocarbon insulating barrier and glass fiber tape layer gap.
2. a kind of mineral insulation according to claim 1 is from lock armo flexible fire-proof cable, it is characterised in that：Also include
Fire-retardant external sheath layer, the fire-retardant external sheath layer are arranged on the outside from lock armo external sheath layer.
3. a kind of mineral insulation according to claim 1 is from lock armo flexible fire-proof cable, it is characterised in that：It is described from
Lock armo external sheath layer is the lock armo layer by made by aluminium strip, copper strips, stainless steel band.
4. a kind of mineral insulation according to claim 1 is from lock armo flexible fire-proof cable, it is characterised in that：It is described to lead
Body is soft copper conductor thread core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904091.6U CN206058991U (en) | 2016-08-19 | 2016-08-19 | A kind of mineral insulation is from lock armo flexible fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620904091.6U CN206058991U (en) | 2016-08-19 | 2016-08-19 | A kind of mineral insulation is from lock armo flexible fire-proof cable |
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| Publication Number | Publication Date |
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| CN206058991U true CN206058991U (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620904091.6U Active CN206058991U (en) | 2016-08-19 | 2016-08-19 | A kind of mineral insulation is from lock armo flexible fire-proof cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204216A (en) * | 2017-06-02 | 2017-09-26 | 深圳市永盛发电缆实业发展有限公司 | The super soft mineral insulated cable of graphene |
| CN109671521A (en) * | 2019-01-17 | 2019-04-23 | 四川兴川泰线缆有限公司 | A kind of mineral-insulated fireproof control cable |
| CN110164611A (en) * | 2019-05-31 | 2019-08-23 | 金杯塔牌电缆有限公司 | A kind of refractory ceramics flexible fire-proof cable and production technology |
-
2016
- 2016-08-19 CN CN201620904091.6U patent/CN206058991U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204216A (en) * | 2017-06-02 | 2017-09-26 | 深圳市永盛发电缆实业发展有限公司 | The super soft mineral insulated cable of graphene |
| CN109671521A (en) * | 2019-01-17 | 2019-04-23 | 四川兴川泰线缆有限公司 | A kind of mineral-insulated fireproof control cable |
| CN110164611A (en) * | 2019-05-31 | 2019-08-23 | 金杯塔牌电缆有限公司 | A kind of refractory ceramics flexible fire-proof cable and production technology |
| CN110164611B (en) * | 2019-05-31 | 2024-03-26 | 金杯电工(成都)有限公司 | High-temperature-resistant ceramic flexible fireproof cable and production process thereof |
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