CN2745188Y - Electric cable - Google Patents
Electric cable Download PDFInfo
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- CN2745188Y CN2745188Y CN 200420003708 CN200420003708U CN2745188Y CN 2745188 Y CN2745188 Y CN 2745188Y CN 200420003708 CN200420003708 CN 200420003708 CN 200420003708 U CN200420003708 U CN 200420003708U CN 2745188 Y CN2745188 Y CN 2745188Y
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- CN
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- Prior art keywords
- insulating barrier
- insulation layer
- electric wire
- parts
- resistance
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Abstract
The utility model relates to an electric cable, which comprises a conductor and an insulation layer and is characterized in that the insulation layer has two layers. The conductor is coated by the insulation layer A which is coated by the insulation layer B. The insulation layer An is a moistureproof insulation layer and the insulation layer B is an insulation layer of low smoke, no halogen and flame resistance. The utility model is produced by wire drawing, annealing reaming, batching and extrusion molding and has the advantages of flame resistance, low smoke, non toxicity, heat resistance, wear resistance, ageing resistance and good insulation property in the condition of wet environment and water immersing.
Description
Technical field
The utility model relates to a kind of electric wire, particularly a kind of electric wire with Halogen composite insulation layer.
Background technology
At present, the multiple wire cable of domestic market adopts that polyvinyl chloride is auxilliary to add general additive as insulation or restrictive coating, the temperature resistant grade of electric wire low (about 70 ℃), and its mechanical performance, anti-flammability, weatherability, ageing resistance are bad.The actual motion life-span is short.Particularly be heated, can causing degraded under the situation of Exposure to Sunlight, baked wheaten cake, producing hydrogen chloride gas, to cause personnel to poison dead.Therefore, produce murder by poisoning for eliminating the halide degraded, now also the someone uses other polymer to substitute polyvinyl chloride electrogenesis in next life line cable, but when this type of electric wire in use run into ambient humidity big or be immersed in water after, its insulation property sharply descend, and have a strong impact on the safe handling of electric wire.
Summary of the invention
The purpose of this utility model is to overcome the defective of above-mentioned polyethylene kind electric wire and non-polyethylene kind electric wire, provides a kind of fire-retardant, low cigarette, the good electric wire of insulation property under the moist environment of immersion.
The technical solution of the utility model is, a kind of electric wire, comprise conductor and insulating barrier, it is characterized in that: described insulating barrier is two-layer, the A insulating barrier is coated on outside the described conductor, the B insulating barrier is coated on outside the A insulating barrier, and described A insulating barrier is the damp proof insulation layer, and described B insulating barrier is the low-smoke halogen-free flame-retardant isolating layer.
Electric wire of the present utility model, the thickness of wherein said A insulating barrier are 0.12mm, preferred 0.25-0.5mm; The thickness of described B insulating barrier is 0.2-3mm, preferred 0.25-2.5mm.
Above-mentioned damp proof insulation layer main material is the non-halide polymer that is added with additive.
Wherein the non-halide polymer can comprise the mixture of polyethylene, ethylene-vinyl acetate copolymer resin (being called for short EVA, as follows) or polyethylene and EVA.Additive is an antioxidant, comprise four [β-(3,5-di-t-butyl-4-aminomethyl phenyl) propionic acid] pentaerythritol ester (abbreviation 1010, as follows), 4,4-thiobis (the 6-tert-butyl group-3-methylphenol) (is called for short 300, as follows), 1,1,3-three (2-methyl-4-base-5-tert-butyl-phenyl) butane (is called for short CA, as follows), 2,2 '-methylene bis (4-methyl-6-tert butyl phenol) (being called for short 2246, as follows), N-N '-two-β naphthyl p-phenylenediamine (being called for short DNP), the two lauryls of thio-2 acid (being called for short DLTP), the two octadecyl esters of thio-2 acid (being called for short DSTP).
Above-mentioned damp proof insulation layer material can also comprise crosslinking agent.Described crosslinking agent is cyamelide three allyl fat, can play catalyst and promoter in crosslinking process.
Above-mentioned low-smoke halogen-free flame-retardant isolating layer mainly is made up of non-halide polymer base material, low-smoke non-halogen flame-retardant agent and antioxidant.
Wherein the non-halide polymer can comprise the mixture of polyethylene, ethylene-vinyl acetate copolymer resin (being called for short EVA, as follows) or polyethylene and EVA.Additive is an antioxidant, comprise four [β-(3,5-di-t-butyl-4-aminomethyl phenyl) propionic acid] pentaerythritol ester (abbreviation 1010, as follows), 4,4-thiobis (the 6-tert-butyl group-3-methylphenol) (is called for short 300, as follows), 1,1,3-three (2-methyl-4-base-5-tert-butyl-phenyl) butane (is called for short CA, as follows), 2,2 '-methylene bis (4-methyl-6-tert butyl phenol) (being called for short 2246, as follows), N-N '-two-β naphthyl p-phenylenediamine (being called for short DNP), the two lauryls of thio-2 acid (being called for short DLTP), the two octadecyl esters of thio-2 acid (being called for short DSTP).
Described low-smoke non-halogen flame-retardant agent can be Mg (OH)
2Or Al
2(OH)
3Or Mg (OH)
2And Al
2(OH)
3Mixture.
In the utility model A, the B insulating layer material component,, also comprise the metal deactivator of additive capacity in then described A insulating barrier and the B insulating layer material component if the antioxidant that uses does not have the metal deactivator effect concurrently.Described metal deactivator can be that two salicylidenes are for the acyl vagina.
The material component of its B insulating barrier can also comprise light, ultra-violet absorber or photomask agent.It can improve the outside cable light aging resisting property.Described light, ultra-violet absorber are carbon black; Described photomask agent comprises zinc oxide (EMO), titanium dioxide (TiO
2).
Electric wire of the present utility model, the component of the material of its B insulating barrier can also comprise sensitizer.Described sensitizer is a triallyl isonitrile urea acid fat.Along with the sensitizer increase can be saved irradiation dose and enhanced productivity.
The utility model electric wire is after the heart yearn outer surface coats the B insulating barrier, because the B insulating barrier is for adding Mg (OH) in the non-halide base-material
2Or Al
2(OH)
3When running into unexpected burning, the hydroxide decomposes, the a large amount of heats that produce when burning around absorbing, and generate metal oxide, can reduce the temperature of combustion site like this, generate the metal oxide crust in the reaction, stoped oxygen to contact again, reached fire-retardant, heat insulation, low cigarette, even smokeless, nontoxic effect has guaranteed Field Force's safety and helped relief with organic; But when having only the B insulating barrier, owing to mixed a large amount of hydroxide, increased the moisture pick-up properties of material, it is big or when being immersed in water to make this kind electric wire in use run into ambient humidity, its insulation resistance sharply reduces, especially when running into hot water, the rapid decline of insulation resistance is close to 0 at short notice, have a strong impact on the use and the safety of electric wire, thereby be that the outer surface of heart yearn coats the A insulating barrier in the B insulating barrier, because the A insulating barrier has high resistance and high water resistance, make the product can not only be when burning takes place, reach low cigarette, fire-retardant, heat insulation, and guarantee under wet environment and situation about being immersed in water, to keep the high insulating property of electric wire, guarantee security of products and reliability, after implementing crosslinking process, electric wire is heatproof then, wear-resisting, anti-cracking, ageing resistace is stronger.
Description of drawings
Fig. 1 is the profile of single core cable of the present utility model;
Fig. 2 is the profile of power cable of the present utility model;
Fig. 3 is the profile of control cable of the present utility model;
Fig. 4 is 1.5mm
2Electric wire resistance value under by the situation of 70 ℃ of hot-water soaks changes comparison diagram.
Embodiment
Embodiment one: make single core cable shown in Figure 1
1. copper 1 is carried out wire drawing;
2. with described wire drawing copper 1 annealing, strand system;
3. 85 parts of polyethylene by weight
15 parts of EVA
0.5 part of antioxidant 300
Preparation A insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
4. the A insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 2 is being extruded on the surface of described copper 1, and its thickness is 0.5mm;
5. 100 parts of polyethylene by weight
Mg (OH)
2180 parts
0.1 part of antioxidant 300
Preparation B insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
6. the B insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 3 is being extruded on the surface of described insulating barrier 2, and its thickness is 1mm.
7. finished product packing.
Embodiment two:
1. aluminium 1 is carried out wire drawing;
2. with described wire drawing aluminium 1 annealing, strand system;
3. 100 parts of EVA by weight
0.1 part of antioxidant 1010
Preparation A insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
4. the A insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 2 is being extruded on the surface of described copper 1, and its thickness is 2mm.
5. 70 parts of polyethylene by weight
30 parts of EVA
Al
2(OH)
3400 parts
0.8 part of antioxidant CA
1 part in triallyl isonitrile urea acid fat
Preparation B insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
6. the B insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 3 is being extruded on the surface of described insulating barrier 2, and its thickness is 2.5mm.
7. the electric wire that adopts cross-linking radiation technology that step 6 is made is processed;
8. finished product packing.
Embodiment three: make power cable shown in Figure 2,
1. copper 1 is carried out wire drawing;
2. with described wire drawing copper 1 annealing, strand system;
3. 90 parts of polyethylene by weight
10 parts of EVA
0.2 part of antioxidant 300
Preparation A insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
4. the A insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 2 is being extruded on the surface of described copper 1, and its thickness is 0.1mm
5. 60 parts of polyethylene by weight
40 parts of EVA
Al
2(OH)
325 parts
Mg (OH)
225 parts
0.4 part of antioxidant 300
2 parts of carbon blacks
Preparation B insulating barrier raw material stirs at normal temperatures with plastic mixer, and is standby;
6. the B insulating barrier raw material that will prepare joins on the extruder, on the extruder insulating barrier 3 is being extruded on the surface of described insulating barrier 2, and its thickness is 0.2mm.
7. adopt cross-linking radiation technology that the electric wire that squeezes good insulating barrier is processed;
8. stranding step, the many cores that step 7 is made are hinged into cable core;
9. extrude sheath 4 at the described cable core outer surface that is hinged into.
10. finished product packing.
Embodiment four: basic identical with embodiment three, difference is:
The A thickness of insulating layer is 0.25mm in the step 4;
A insulating layer material component is in the step 5
50 parts of polyethylene
50 parts of EVA
Al
2(OH)
3100 parts
Mg (OH)
2100 parts
0.6 part of antioxidant 300
8 parts of titanium dioxides;
The B thickness of insulating layer is 3mm in the step 6.
Embodiment five: as shown in Figure 5, and with three kinds of 1.5mm
2Electric wire, be that composite insulation layer of the present utility model, polyvinyl chloride insulation layer, low-smoke halogen-free flame-retardant isolating layer are under the situation of being soaked by 70 ℃ of hot water, the insulating resistance value of polyvinyl chloride insulation layer and low-smoke halogen-free flame-retardant isolating layer all approached 0 in 48 hours, and the insulation resistance of the composite insulation layer of polyethylene+low-smoke non-halogen flame-retardant almost has no to change.
Claims (2)
1, a kind of electric wire comprises conductor and insulating barrier, it is characterized in that: described insulating barrier is two-layer, the A insulating barrier is coated on outside the described conductor, the B insulating barrier is coated on outside the A insulating barrier, and described A insulating barrier is the damp proof insulation layer, and described B insulating barrier is the low-smoke halogen-free flame-retardant isolating layer.
2, electric wire according to claim 1 is characterized in that: the thickness of described A insulating barrier is 0.1-2mm, and the thickness of described B insulating barrier is 0.2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003708 CN2745188Y (en) | 2003-01-24 | 2004-01-22 | Electric cable |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03236547.0 | 2003-01-24 | ||
| CN03236547 | 2003-01-24 | ||
| CN 200420003708 CN2745188Y (en) | 2003-01-24 | 2004-01-22 | Electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745188Y true CN2745188Y (en) | 2005-12-07 |
Family
ID=35579963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420003708 Expired - Fee Related CN2745188Y (en) | 2003-01-24 | 2004-01-22 | Electric cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745188Y (en) |
-
2004
- 2004-01-22 CN CN 200420003708 patent/CN2745188Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20090629 Pledge (preservation): Preservation |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20121229 Granted publication date: 20051207 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20121229 Granted publication date: 20051207 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20130629 Granted publication date: 20051207 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| 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: 20051207 Termination date: 20130122 |