CN208753037U - High fire-retardance controls cable - Google Patents
High fire-retardance controls cable Download PDFInfo
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- CN208753037U CN208753037U CN201821654173.5U CN201821654173U CN208753037U CN 208753037 U CN208753037 U CN 208753037U CN 201821654173 U CN201821654173 U CN 201821654173U CN 208753037 U CN208753037 U CN 208753037U
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- layer
- conductor
- retardance
- high fire
- fire
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Abstract
The utility model provides a kind of high fire-retardance control cable.It includes conductor layer, metal hydrate fillers and restrictive coating；The conductor layer includes an at least conductor element, and the conductor element includes a conductor and the insulating layer that is wrapped on the conductor, and each conductor element is enclosed fascicular texture；The restrictive coating includes the belting layer, a silastic-layer and an external sheath layer being successively sticked from inside to outside, the silastic-layer with a thickness of 1~2mm；The belting layer is wrapped in the outer wall of the fascicular texture；The metal hydrate fillers are filled in the gap between the belting layer and the outer wall of the fascicular texture and between each conductor element.High fire-retardance control cable-flame retardant effect is good, at low cost, and manufacture and laying difficulty are low.
Description
Technical field
The utility model relates to a kind of cable, in particular to a kind of high fire-retardance controls cable.
Background technique
As the flame retardant property of the raising that people require electrical safety, cable is increasingly concerned by people, quality is high
The low life security for directly influencing user.Predominantly its structure of general control cable mainly includes conductor currently on the market,
Insulator, common filler material, sheath.The material of insulator generallys use cross-linked polyethylene insulating material.Since the material is inflammable, and
And insulator periphery is without good protective layer, therefore the flame retardant property of cable is bad.The Halogen of cable, the release of nontoxic, low-heat and
If high self extinguishment characteristics become target -- the European Union B for the good horse that colleague in the industry becomes1The wire examination method of grade flame retardant cable is to measure this mesh
The mark post whether mark is crossed over.Its structure of flame retardant cable includes conductor, silicon rubber insulation, common filler material, band, and sheath is resistance to
Fire fireprotection layer and fire retardant jacket.The material of resistance to combustion fireprotection layer is mica tape, silicone band or metal armor layers.The material of fire retardant jacket
For fire retardant polyolefin.Domestic existing fire proofing at present, the sample of cable that flame-retarded technology is constructed are most of to be difficult to pass through European Union
B1The examination of grade flame retardant cable.As the cross-linking polyethylene materials of cable insulation, electric strength is high, and manufacture craft is good, but inflammable,
Heat liberation unit is big, and common behave is to wrap multi-layer metal belts on cable or set with the more thick and heavy material of resistance to combustion things thus, with weak
The attack of outside the pale of civilization boundary's flame high temperature, but this increases cost of manufacture and manufacture difficulty again.
Utility model content
The technical problems to be solved in the utility model is the resistance to anti-flammability in order to overcome common flame retardant cable in the prior art
Difference, cost of manufacture height and the big defect of manufacture difficulty, and a kind of high fire-retardance control cable is provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
The utility model provides a kind of high fire-retardance control cable comprising conductor layer, metal hydrate fillers and sheath
Layer；The conductor layer includes an at least conductor element, and the conductor element includes a conductor and is wrapped in exhausted on the conductor
Edge layer, each conductor element are enclosed fascicular texture；The restrictive coating include the belting layer being successively sticked from inside to outside,
One silastic-layer and an external sheath layer, the silastic-layer with a thickness of 1~2mm；The belting layer is wrapped in the pencil knot
The outer wall of structure；The metal hydrate fillers are filled between the belting layer and the outer wall of the fascicular texture and each institute
It states in the gap between conductor element.
The metal hydrate fillers are heated to can be analyzed to water and metal oxide.The water heat absorption decomposed, thus
The temperature for reducing cable, reaches flame retardant effect.Moreover, metal oxide will form a shell, this shell can stop fire well
Flame directly burns to the insulated electric conductor, so that the insulated electric conductor is in good working condition always in flame, protects described exhausted
Edge conductor.The silastic-layer can stop the burning of flame under flame, and the high fire-retardance control cable is passed through
European Union B1Grade fire retardancy test.In addition, the silastic-layer also has certain radiation hardness, ageing-resistant, resistance to ozone, fire resistance characteristic.
The high flame-retardant cable plays anti-flame retardant effect by metal hydrate fillers and silastic-layer, has effects that fire resisting, and tie
Structure is simple.
Preferably, the quantity of the conductor element is within 10, it is more preferably 7.
Preferably, the conductor is copper core conductor.Electric conductivity, ductility and the corrosion resistance of copper are good, and are not easy oxygen
Change.
Preferably, the insulating layer is cross-linking polyethylene materials layer.By coating crosslinked polyethylene in the conductor periphery
Material layer can play the role of moisture-proof, sealing and electric insulation.
Preferably, the metal hydrate fillers are aluminium hydroxide or magnesium hydroxide, it is more preferably aluminium hydroxide.
Preferably, the belting layer is the Halogen band bed of material.
Preferably, the number of plies with a thickness of belting layer described in 0.2mm of the belting layer is 1 or 2 layer.
Preferably, the silastic-layer extrudes the outer surface for taking shape in the belting layer.Extrude molding silastic-layer
Good airproof performance has excellent fire-retardant and waterproof performance.
Preferably, the external sheath layer is fire retardant polyolefin or fire-retardant polyethylene material layer.
Preferably, the external sheath layer with a thickness of 1.2-2.2mm.
The positive effect of the utility model is: the high fire-retardance control cable of the utility model passes through metal hydrate
Filler is reduced the temperature of cable by thermal decomposition gentleization, and silastic-layer stops direct burning of the flame to cable, fire resistance
Can be better than common cable, cost of manufacture and manufacture difficulty are lower than existing flame retardant cable.
Detailed description of the invention
Fig. 1 be the utility model embodiment high fire-retardance control cable cross section structure schematic diagram, wherein 1 be conductor layer, 2
It is restrictive coating for metal hydrate fillers, 3,11 be conductor, and 12 be insulating layer, and 31 be belting layer, and 32 be silastic-layer, and 33 be outer
Restrictive coating.
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Embodiment
In the high fire-retardance control cable of the present embodiment, as shown in FIG. 1,1 is conductor layer.The number of conductor element is
7, cross section is circle.Wherein 1 conductor element periphery is uniformly distributed other 6 conductor elements.Wherein 1 conductor element
The six 6 conductor element outer surfaces in outer surface and other are tangent；Other 6 conductor element outer surfaces tangent connection two-by-two,
It is centrally formed a hexagon.Each conductor element is enclosed fascicular texture.Conductor element further includes conductor 11 and insulating layer 12.Absolutely
Edge layer 12 is coated on 11 periphery of conductor.12 material of insulating layer is crosslinked polyethylene, and 11 material of conductor is copper.Cross-linking polyethylene materials
Layer can moisture-proof, sealing and electric insulation.
In the present embodiment, as shown in FIG. 1,2 be metal hydrate fillers.Metal hydrate fillers 2 are hydroxide
Aluminium.Metal hydrate fillers 2 are filled in the gap between belting layer 31 and the outer wall of fascicular texture and between each conductor element
In.Metal hydrate fillers 2 are heated to can be analyzed to water and metal oxide.The water heat absorption decomposed, to reduce cable
Temperature, reach flame retardant effect.Moreover, metal oxide will form a shell, this shell can stop flame to leading well
Body layer 1 directly burns, so that conductor layer 1 is in good working condition always in flame, protects the conductor layer 1.
In the present embodiment, as shown in FIG. 1,3 be restrictive coating.Restrictive coating 3 is wrapped in conductor element 1 and metal hydration
Object filler 2.Restrictive coating 3 includes: to be followed successively by belting layer 31, silastic-layer 32 and external sheath layer 33 from inside to outside.Belting layer 31
Material is Halogen band, with a thickness of 0.2mm.The number of plies of belting layer 31 is 1 layer.Belting layer 31 wraps up conductor element 1 and metal hydration
Object filler 2.The material of silastic-layer 32 is silicon rubber.Silastic-layer 32 with a thickness of 1~2mm.Belting layer 31 and silastic-layer
32 material is non-automatic incombustible material, and the burning of flame can be stopped under flame.Belting layer 31 and silastic-layer 32 play fire-resistance every
The effect of heat.Silastic-layer 32 extrudes the outer surface for taking shape in belting layer 31.The good airproof performance of molding silastic-layer 32 is extruded,
The low molecule fuel gas evolution that can prevent insulating layer 12 from generating at high temperature.Silastic-layer 32 has excellent fire-retardant and waterproof
Performance.Silastic-layer 32 can stop the burning of flame under flame, and high fire-retardance control cable is hindered by European Union B1 grades
Combustion test.In addition, silastic-layer 32 also has certain radiation hardness, ageing-resistant, resistance to ozone, fire resistance characteristic.External sheath layer 33
Material is fire retardant polyolefin, with a thickness of 1.2-2.2mm.External sheath layer 33 wraps up silastic-layer 32.External sheath layer 33 can play guarantor
Protect the effect of layer of silica gel 32.
When fire occurs, the external sheath layer 33 of high fire-retardance control cable is burnt and is cracked by flame, belting layer 31 and silicon
Rubber layer 32 itself is non-ignitable and can constitute fire retardant barriers under flame, plays the role of insulating layer 12.And metal hydrate condiment
Aluminium hydroxide at high temperature, is heated and hydrolyzes, formula is as follows:
From formula: the aluminium hydroxide of two molecules can be decomposed into the aluminium oxide and trihyarol of a molecule.According to gram
The calculation method of molecular equivalency, the amount of precipitation of water are the 34% of aluminium hydroxide weight.It is well known that every gram of water at 100 DEG C
The latent heat of vaporization is 539 cards, thus metal hydrate aluminium hydroxide not only accomplish itself it is non-ignitable do not burn, but also by releasing water initiatively
Carry out absorbing and cooling temperature.When heated, the hydrolysis of metal hydrate aluminium hydroxide and gasification can assist cable to cool down, flame retardant effect is bright
It is aobvious.To protect the safety of cross-linked polyethylene layer.
32 material of silastic-layer is silicon rubber.Silastic-layer 32 itself is non-ignitable and can constitute fire retardant barriers under flame, has
The heat-insulated function of fire-resistance.Silastic-layer 32 extrudes the outer surface for taking shape in belting layer 31, and good airproof performance can prevent inherent crosslinking
Polyethylene directly burns under flame.Further, silastic-layer 32 also has fire-retardant, radiation hardness, cold-resistant, heat-resisting, acid and alkali-resistance
And the characteristics such as corrosive gas, waterproof.Silastic-layer 32 is that high fire-retardance control cable can cross over the fire-retardant mark post of European Union B1
It is crucial.
The high fire-retardance control cable of the present embodiment can fully meet the requirement of European Union B1 grades of fire retardancy test.
Comparative example 1
It includes conductor layer, filler material and restrictive coating to common cable, and the conductor layer includes an at least conductor element, described
Conductor element includes a conductor and the insulating layer that is wrapped on the conductor, and each conductor element is enclosed fascicular texture；
The restrictive coating is wrapped in the outer wall of the fascicular texture；The filler material is filled in the belting layer and the fascicular texture
In gap between outer wall and between each conductor element, the filler material is polyacrylic PP filling rope.
Comparative example 2
It includes that the conductor layer includes an at least conductor element to flame retardant cable, and the conductor element includes a conductor and packet
The silastic-layer being wrapped on the conductor, each conductor element are enclosed fascicular texture；The restrictive coating is wrapped in described
The outer wall of fascicular texture；The filler material is filled between the belting layer and the outer wall of the fascicular texture and each described
In gap between conductor element, the filler material is the PP filling rope of anti-flammability；Successively package is interior on the outside of the belting layer protects
Layer, resistance to combustion fireprotection layer and flame retardant sheath layer；The resistance to combustion fireprotection layer be mica belt, silica gel belt or metal armouring layer material,
In the flame retardant coating mica tape layer with a thickness of 0.2mm, silica gel belt with a thickness of 0.2mm, metal armor layers 0.4mm；Institute
The material for stating fire retardant jacket is fire retardant polyolefin.
Effect example
By embodiment compared with the cable of comparative example 1 and 2 carries out anti-flammability performance indicator and cost, result such as 1 institute of table
Show:
The comparison of table 1 different cable-flame retardant performance indicators and cost
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without prejudice to from the principles of the present invention and essence, numerous variations can be made to these embodiments or are repaired
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (9)
1. a kind of high fire-retardance controls cable, which is characterized in that including conductor layer, metal hydrate fillers and restrictive coating；It is described to lead
Body layer includes an at least conductor element, and the conductor element includes a conductor and the insulating layer that is wrapped on the conductor, each institute
It states conductor element and is enclosed fascicular texture；The restrictive coating includes the belting layer being successively sticked from inside to outside, a silicon rubber
Layer and an external sheath layer, the silastic-layer with a thickness of 1~2mm；The belting layer is wrapped in the outer wall of the fascicular texture；
The metal hydrate fillers are filled between the belting layer and the outer wall of the fascicular texture and each conductor element
Between gap in.
2. high fire-retardance as described in claim 1 controls cable, which is characterized in that the quantity of the conductor element is within 10.
3. high fire-retardance as claimed in claim 1 or 2 controls cable, which is characterized in that the quantity of the conductor element is 7.
4. high fire-retardance as described in claim 1 controls cable, which is characterized in that the conductor is copper core conductor.
5. high fire-retardance as described in claim 1 controls cable, which is characterized in that the insulating layer is cross-linking polyethylene materials layer.
6. high fire-retardance as described in claim 1 controls cable, which is characterized in that the metal hydrate fillers be aluminium hydroxide or
Magnesium hydroxide.
7. high fire-retardance as described in claim 1 controls cable, which is characterized in that the belting layer is the Halogen band bed of material；It is described
Belting layer with a thickness of 0.2mm；The number of plies of the belting layer is 1 or 2 layer.
8. high fire-retardance as described in claim 1 controls cable, which is characterized in that the silastic-layer, which extrudes, takes shape in the band
The outer surface of layer.
9. high fire-retardance as described in claim 1 controls cable, which is characterized in that the external sheath layer is fire retardant polyolefin or fire-retardant
Polythene material layer；The oversheath with a thickness of 1.2-2.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821654173.5U CN208753037U (en) | 2018-10-10 | 2018-10-10 | High fire-retardance controls cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821654173.5U CN208753037U (en) | 2018-10-10 | 2018-10-10 | High fire-retardance controls cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753037U true CN208753037U (en) | 2019-04-16 |
Family
ID=66085698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821654173.5U Expired - Fee Related CN208753037U (en) | 2018-10-10 | 2018-10-10 | High fire-retardance controls cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208753037U (en) |
-
2018
- 2018-10-10 CN CN201821654173.5U patent/CN208753037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190416 Termination date: 20201010 |