CN207704908U - A kind of building wiring flexible fire-proof cable - Google Patents
A kind of building wiring flexible fire-proof cable Download PDFInfo
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- CN207704908U CN207704908U CN201721832944.0U CN201721832944U CN207704908U CN 207704908 U CN207704908 U CN 207704908U CN 201721832944 U CN201721832944 U CN 201721832944U CN 207704908 U CN207704908 U CN 207704908U
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Abstract
The utility model is related to technical field of electric wires and cables.Purpose is to provide a kind of building wiring flexible fire-proof cable, the fireproof cable includes core, the core includes at least 3 conductors and insulating layer that fan-shaped cross section, it is extruded with the insulating layer outside the conductor, dry powder fireprotection layer, expanding layer, armor and outer jacket are extruded with outside the core successively, hole is equipped in the outer jacket.Dry powder fireprotection layer described in the utility model cable and expanding layer can play the role of fire extinguishing, and the hole being equipped in the outer jacket makes cable flexibility more preferable.
Description
Technical field
The utility model is related to technical field of electric wires and cables, and in particular to a kind of building wiring flexible fire-proof cable.
Background technology
The land resource scarcity in city, therefore building is relatively intensive, building electricity consumption is also relatively large, because electricity occurs
The probability of fire is also relatively large, is counted according to fire department, and the accidental fire of building is mainly caused by built-in electrical equipment malfunction,
It is wherein most because cable crosses thermal initiation fire.
Due to the concealment of electric wire, more difficult discovery early stage catching fire, and the concealment of cable is wide causes to catch fire
Area is larger, it is difficult to put out a fire, cable will produce toxic gas when causing fire, and harm is larger, the work that is unfavorable for suing and labouring into
Row.Existing fireproof cable is generally magnesium oxide material by the way that fireprotection layer, fireprotection layer are added in the cable, and use is more universal,
This kind of fireproof cable is preferable in short-period used effect, and fireprotection layer is easy failure over time, and this kind of fireproof cable hardness is big, curved
Actual use demand is not achieved in Qu Chengdu, and engineer application has certain limitation.
Invention content
In view of this, a kind of building wiring flexible fire-proof cable provided by the utility model, which has flexibility
Well, the advantages of being not easy to catch fire.
For achieving the above object, technical solution used by the utility model is：A kind of building wiring is anti-with flexibility
Thermoelectricity cable, including core, the core include at least 3 conductors and insulating layer that fan-shaped cross section, are squeezed outside the conductor
It is surrounded by the insulating layer, is extruded with dry powder fireprotection layer, expanding layer, armor and outer jacket outside the core successively, it is described outer
Hole is equipped in sheath.
Preferably, it is set in the dry powder fireprotection layer there are one annular housing, the cavity is interior to be filled with dry powder.
Preferably, it is set in the expanding layer there are one annular housing, the cavity is interior to be filled with expanded graphite.
Preferably, the insulating layer is that the band-like product of synthetic mica is entwined by material, and the armor is not using 304
Become rusty steel embossing armouring sheath, the outer jacket using it is fire-retardant, block water, acid and alkali-resistance vinyon combined material.
The utility model has the advantages that：In the technical solution of the utility model, the utility model cable institute
The dry powder filled in dry powder fireprotection layer is stated in cable nature, the dry powder makes the chain reaction of burning interrupt and put out a fire, and described
The powder of dry powder is fallen outside combustible surface, thus isolating oxygen, and then fire smothering；In addition, that is filled in the expanding layer is swollen
Swollen graphite, in cable spontaneous combustion, when temperature reaches its initial expansion temperature, the expanded graphite volume expansion increases, will be electric
Outside air extrusion discharge cable in cable, and the graphite worm that generates after expanded graphite expansion, form one it is very good
Heat insulation layer, can effectively it is heat-insulated.And the hole being arranged in the outer jacket increase cable entirety heat dissipation area and with
The mobility of air contributes to cable Homogeneouslly-radiating；Meanwhile hole makes the deformation of outer jacket be easier, admittedly make cable soft
It is soft more preferable.
Description of the drawings
Fig. 1 is the overall structure block diagram of the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In conjunction with shown in Fig. 1, a kind of building wiring flexible fire-proof cable provided by the utility model includes core, the line
Core includes at least 3 conductors 1 that fan-shaped cross section and insulating layer 2, and the insulating layer 2 is extruded with outside the conductor 1, described
It is extruded with dry powder fireprotection layer 3, expanding layer 4, armor 5 and outer jacket 6 successively outside core, is irregularly set in the outer jacket 6
Hole 7.
1 cross section of the conductor is set as fan-shaped, is fitted closely between the conductor 1, not will produce gap, and cross section
Gap is will produce between circular conventional conductor, needs increase filler to be filled gap, not only increases processing technology
Difficulty, because increasing filler between conductor so that product weight also increases, and space availability ratio is not high.Therefore the utility model
1 cross section of conductor is set as fan-shaped, can maximumlly utilize space, and does not need filler and carry out gap filling, reduces one
Road manufacturing procedure improves production efficiency.The conductor 1 is set as 3 in the present embodiment, can determine electricity according to actual conditions
The quantity of conductor 1 in cable.
It is set in the dry powder fireprotection layer 3 there are one annular housing, the cavity is interior to be filled with dry powder, the nothing in the dry powder
The volatile decomposition object of machine salt occurs Chemical Inhibition with free radical caused by fuel in combustion process or active group and pair is urged
Change acts on, and the chain reaction of burning is made to interrupt and put out a fire；The powder of the dry powder is fallen outside combustible surface, is chemically reacted,
And one layer of glassy coating is formed under high temperature action, thus isolating oxygen, and then fire smothering；It is partly played in addition, also having
Dilute oxygen and cooling effect.
The insulating layer 2 is that the band-like product of synthetic mica is entwined by material, and the insulating layer 2 is led greatly because of insulation resistance
Cause the class of insulation high and non-hygroscopic so that 1 pressure resistance 3.5KV/5min of conductor does not puncture.A ring also is provided in the expanding layer 4
Shape cavity, the cavity is interior to be filled with expanded graphite, and the expanded graphite is in cable spontaneous combustion, when temperature reaches its Initial Dilatation
When temperature, 150-300 times of the expanded graphite volume instantaneous expansion, as the expanded graphite volume expansion increases, by cable
Outside interior air extrusion discharge cable, and the graphite worm generated after expanded graphite expansion, form one it is extraordinary
Heat insulation layer, can be effectively heat-insulated, has rate of heat release low in a fire, the few advantage of the flue gas of generation.The armor 5 uses
304 stainless steel embossing armouring sheaths, the armor 5 not only increase cable tensile strength, also play solid in cable spontaneous combustion
Effect bursts protective coverings of cable 6 when preventing expanding layer 4 from expanding, while because of the presence of armor 5 so that when expanding layer 4 expands
Air inside cable is discharged toward external so that reach fire extinguishing effect inside cable because lacking oxygen.The outer jacket 6 is adopted
With it is fire-retardant, block water, acid and alkali-resistance vinyon combined material, effect be allow cable have it is fire-retardant, block water, acid-alkali-corrosive-resisting,
The characteristics such as wear-resistant and flexibility is good.
Described hole 7 directly generates hole 7 in 6 extrusion moulding of outer jacket, and described hole 7 increases dissipating for cable entirety
Hot area and mobility with air, contribute to cable Homogeneouslly-radiating；Meanwhile when being deformed upon during cable use,
Because of the presence of hole 7 so that the deformation of outer jacket 6 is easier, admittedly make cable flexibility more preferable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of building wiring flexible fire-proof cable, including core, it is characterised in that：The core includes at least 3 transversal
Face is fan-shaped conductor (1) and insulating layer (2), is extruded with the insulating layer (2) outside the conductor (1), the core it is outer according to
It is secondary to be extruded with dry powder fireprotection layer (3), expanding layer (4), armor (5) and outer jacket (6), it is equipped with hole in the outer jacket (6)
Hole (7).
2. a kind of building wiring flexible fire-proof cable according to claim 1, it is characterised in that：The dry powder fireprotection layer
(3) it is set in there are one annular housing, the cavity is interior to be filled with dry powder.
3. a kind of building wiring flexible fire-proof cable according to claim 1, it is characterised in that：The expanding layer (4)
It inside sets there are one annular housing, the cavity is interior to be filled with expanded graphite.
4. a kind of building wiring flexible fire-proof cable according to claim 1, it is characterised in that：The insulating layer (2)
It is that the band-like product of synthetic mica is entwined by material, the armor (5) uses 304 stainless steel embossing armouring sheaths, described
Outer jacket (6) use is fire-retardant, blocks water, acid and alkali-resistance vinyon combined material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832944.0U CN207704908U (en) | 2017-12-25 | 2017-12-25 | A kind of building wiring flexible fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832944.0U CN207704908U (en) | 2017-12-25 | 2017-12-25 | A kind of building wiring flexible fire-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207704908U true CN207704908U (en) | 2018-08-07 |
Family
ID=63028292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721832944.0U Active CN207704908U (en) | 2017-12-25 | 2017-12-25 | A kind of building wiring flexible fire-proof cable |
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| CN (1) | CN207704908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887654A (en) * | 2019-02-12 | 2019-06-14 | 宜昌红旗中泰电缆有限公司 | Resistance to alternation operating condition power cable |
| CN109920582A (en) * | 2019-01-28 | 2019-06-21 | 芜湖航天特种电缆厂股份有限公司 | Corrosion-resistant anti-mildew cable and preparation method thereof |
| CN113161975A (en) * | 2021-05-08 | 2021-07-23 | 河南四达电力设备股份有限公司 | Flexible fireproof and explosion-proof blanket for cable intermediate joint |
-
2017
- 2017-12-25 CN CN201721832944.0U patent/CN207704908U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920582A (en) * | 2019-01-28 | 2019-06-21 | 芜湖航天特种电缆厂股份有限公司 | Corrosion-resistant anti-mildew cable and preparation method thereof |
| CN109887654A (en) * | 2019-02-12 | 2019-06-14 | 宜昌红旗中泰电缆有限公司 | Resistance to alternation operating condition power cable |
| CN113161975A (en) * | 2021-05-08 | 2021-07-23 | 河南四达电力设备股份有限公司 | Flexible fireproof and explosion-proof blanket for cable intermediate joint |
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