CN109949986A - Flame retardant type wire and cable - Google Patents
Flame retardant type wire and cable Download PDFInfo
- Publication number
- CN109949986A CN109949986A CN201711381099.4A CN201711381099A CN109949986A CN 109949986 A CN109949986 A CN 109949986A CN 201711381099 A CN201711381099 A CN 201711381099A CN 109949986 A CN109949986 A CN 109949986A
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- CN
- China
- Prior art keywords
- flame
- restrictive coating
- baffle ring
- copper conductor
- copper
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to flame retardant type wire and cables, including copper conductor and the insulating layer and restrictive coating that are successively set on outside copper conductor, the copper conductor includes the more tinned copper wires or bare copper wire twisted together, flame-retardant layer is provided with outside the restrictive coating, circumferential baffle ring is provided between the flame-retardant layer and restrictive coating, restrictive coating, flame-retardant layer are isolated a toroidal cavity by the circumferential direction baffle ring, are filled with fire proofing in the toroidal cavity.The present invention includes copper conductor and the insulating layer and restrictive coating that are successively set on outside copper conductor, the copper conductor includes the more tinned copper wires or bare copper wire twisted together, flame-retardant layer is provided with outside the restrictive coating, circumferential baffle ring is provided between the flame-retardant layer and restrictive coating, restrictive coating, flame-retardant layer are isolated a toroidal cavity by the circumferential direction baffle ring, are filled with fire proofing in the toroidal cavity.
Description
Technical field
The invention belongs to wire and cable fields, relate generally to a kind of novel low smoke zero halogen fire resistant type wire and cable.
Background technique
To reduce the caused fire incident of electric cable heating burning, flame retardant cable using more and more common；Present resistance
Combustion cable mainly has that halogen is fire-retardant, in the case of fire, can generate a large amount of smog, generate toxic, with irritating and corrosive
Hydrogen halide；Smog can interfere fire fighting and evacuating personnel, hydrogen halide that can corrode equipment, can also be detrimental to health.
The country, China wire and cable annual output accounts for about 20% of world wide production or so, accounts about world's electric wire by output value calculating
The 15% of the cable gross output value, about 80,000,000,000 yuan (RMB), China has been developed as the world's largest wire and cable market.With
The development of society, people increasingly pay attention to environmental problem, and many countries have formulated various environmental protection policies one after another, such as:
European Union formulate ROHS instruction: from July 1st, 2006, in the electronic and electrical equipment newly launched, be forbidden to use lead,
The harmful substances such as mercury, cadmium, Cr VI, polybrominated diphenyl ethers (PBDE) and polybrominated biphenyls (PBB).
Developing a kind of cable for meeting environmental requirement thus is just particularly important.
Summary of the invention
The present invention is in view of the foregoing drawbacks, and it is an object of the present invention to provide a kind of to meet household electrical appliances, instrument and meter, public arena and personnel close
Collection place etc. needs the low cigarette of environmental protection, halogen-free flameproof to require and develop.
Thus the technical solution adopted by the present invention is that: the present invention includes copper conductor and the insulation that is successively set on outside copper conductor
Layer and restrictive coating, the copper conductor include the more tinned copper wires or bare copper wire twisted together, setting outside the restrictive coating
There is flame-retardant layer, circumferential baffle ring is provided between the flame-retardant layer and restrictive coating, the circumferential direction baffle ring is isolated by restrictive coating, flame-retardant layer
A toroidal cavity out is filled with fire proofing in the toroidal cavity.
The circumferential direction baffle ring offers several through-holes.
Copper conductor peripheral hardware halogen-free low-smoke polyolefin insulation layer.
Insulating layer peripheral hardware halogen-free low-smoke polyolefin sheath layer.
The invention has the advantages that flame-retardant layer is arranged in the present invention outside restrictive coating, and it is arranged between flame-retardant layer and restrictive coating
Circumferential baffle ring, circumferential baffle ring one play the support to flame-retardant layer and restrictive coating, and circumferential baffle ring is secondly by the flame-retardant layer and shield
Jacket layer split settings reduce the two because relatively rotating due to the damage of the factors brings such as friction；Circumferential baffle ring is further simultaneously
Annular space is formd, so that fire proofing is filled in annular space, and such fire proofing can be powdery, it will not be right
Restrictive coating, flame-retardant layer cause any damage, therefore the present invention not only can fully ensure that the flame retardant property of cable, but also can reduce fire-retardant
The damage of layer, restrictive coating, has good practicability.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
1 it is copper conductor in figure, 2 be insulating layer, 3 be restrictive coating, 4 be flame-retardant layer, 5 is baffle ring.
Specific embodiment
The present invention includes copper conductor 1 and the insulating layer 2 and restrictive coating 3 that are successively set on outside copper conductor 1, the copper conductor 1
The tinned copper wire or bare copper wire twisted together including more is provided with flame-retardant layer 4, the flame-retardant layer 4 outside the restrictive coating 3
Circumferential baffle ring 5 is provided between restrictive coating 3, restrictive coating 3, flame-retardant layer 4 are isolated a toroidal cavity by the circumferential direction baffle ring 5,
Fire proofing is filled in the toroidal cavity.
The circumferential direction baffle ring 5 offers several through-holes.
1 peripheral hardware halogen-free low-smoke polyolefin insulation layer 2 of copper conductor.
2 peripheral hardware halogen-free low-smoke polyolefin sheath layer 3 of insulating layer.
The annealing bare copper wire or tinned copper wire that copper conductor 1 of the invention uses are carried out according to 10-20 times of bundle strand pitch ratio
The opposite rule of adjacent layer is twisted, and is had excellent conductor flexibility and bending property, is met cable conductor standard
Requirement.
In the process of 1 external application extrusion molding of copper conductor cladding insulating layer 2, insulating layer 2 uses halogen-free low-smoke polyene
Hydrocarbon Insulation Material directly heats squash type cladding, and crowded tubular type can be selected in mold, and commonly used plain edition multiple screw extruder can be complete
At extrusion process.
Plasticizing is also directly heated using the material application of halogen-free low-smoke polyolefin using restrictive coating 3 outside insulating layer 2
Fashion of extrusion extrude sheath layer 3, mold can be selected half and squeeze tubular type, and commonly used plain edition multiple screw extruder can complete extrusion molding
Process.
Claims (4)
1. flame retardant type wire and cable, including copper conductor and the insulating layer and restrictive coating that are successively set on outside copper conductor, the copper is led
Body includes the more tinned copper wires or bare copper wire twisted together, which is characterized in that
It is provided with flame-retardant layer outside the restrictive coating, circumferential baffle ring, the circumferential direction are provided between the flame-retardant layer and restrictive coating
Restrictive coating, flame-retardant layer are isolated a toroidal cavity by baffle ring, are filled with fire proofing in the toroidal cavity.
2. flame retardant type wire and cable according to claim 1, which is characterized in that the circumferential direction baffle ring offers several logical
Hole.
3. flame retardant type wire and cable according to claim 1, which is characterized in that copper conductor peripheral hardware halogen-free low-smoke is poly-
Alkene insulating layer.
4. flame retardant type wire and cable according to claim 1, which is characterized in that insulating layer peripheral hardware halogen-free low-smoke is poly-
Alkene restrictive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381099.4A CN109949986A (en) | 2017-12-20 | 2017-12-20 | Flame retardant type wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711381099.4A CN109949986A (en) | 2017-12-20 | 2017-12-20 | Flame retardant type wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109949986A true CN109949986A (en) | 2019-06-28 |
Family
ID=67005465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711381099.4A Pending CN109949986A (en) | 2017-12-20 | 2017-12-20 | Flame retardant type wire and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109949986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048255A (en) * | 2019-12-04 | 2020-04-21 | 安徽华通电缆集团有限公司 | High-flame-retardant ultraviolet-irradiation-proof power cable for rail transit |
-
2017
- 2017-12-20 CN CN201711381099.4A patent/CN109949986A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048255A (en) * | 2019-12-04 | 2020-04-21 | 安徽华通电缆集团有限公司 | High-flame-retardant ultraviolet-irradiation-proof power cable for rail transit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190628 |