CN2667617Y - One-step silane cross-linked ethylene-propylene rubber insulation low-smoke non-halogen flame resistan DC cable - Google Patents
One-step silane cross-linked ethylene-propylene rubber insulation low-smoke non-halogen flame resistan DC cable Download PDFInfo
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- CN2667617Y CN2667617Y CN 200320103467 CN200320103467U CN2667617Y CN 2667617 Y CN2667617 Y CN 2667617Y CN 200320103467 CN200320103467 CN 200320103467 CN 200320103467 U CN200320103467 U CN 200320103467U CN 2667617 Y CN2667617 Y CN 2667617Y
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- propylene rubber
- halogen flame
- smoke non
- low
- retardant
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- Extrusion Moulding Of Plastics Or The Like (AREA)
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Abstract
The utility model provides a Si-XLPE by the Cabsil process ethylene-propylene rubber insulation low smoke non-halogen flame retardant direct current cable, comprising an insulation wire core packed with a layer of a Si-XLPE by the Cabsil process ethylene-propylene rubber insulation low smoke non-halogen flame retardant protection coating which is made by injecting a composite silane into an extruder, mixing, grafting and molding directly with the ethylene-propylene rubber. Having a perfect flame retardant performance, the utility model does not release a large amount of halogen-acid gas, being applicable to the occasions having a high requirement for the safety and reliability of the cable device.
Description
Technical field
The utility model relates to a kind of power transmission cable, particularly relates to a kind of one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables.
Prior art
Direct current cables is little with its transfer rate height, line loss, regulate electric current and change characteristics such as direction of transfer convenience, installation, maintenance cost are low, more and more is applied in each field, but also more and more higher to the requirement of its serviceability.
One-step method silanes crosslinked ethylene propylene rubber insulated direct current cables is fabulous with its bending property, high resilience and have characteristics such as good electrical properties and be very suitable for roving place, is widely used in fields such as boats and ships, subway, nuclear power station, detection, digging.The structure of common fire-retardant direct current cables is to adopt flame-proof PVC to make oversheath, it can discharge a large amount of halogen acid gas when burning, equipment and instrument and meter around the heavy corrosion also have very big harm to health simultaneously, Here it is people's said " secondary disaster ".Therefore, some important engineerings are clearly specified the employing low-smoke halogen-free inflaming-retarding cable, to reduce the loss that " secondary disaster " caused.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables that can overcome the defective of prior art, its oversheath adopts one-step method silanes crosslinked ethylene-propylene rubber to make, and compound silane is injected extruder directly and ethylene-propylene rubber blend, grafting, moulding.It has good flame retardancy, and can not discharge a large amount of halogen acid gas, applicable to the cable machinery security reliability is required the highest place.
For achieving the above object, the technical solution of the utility model is: described one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables comprises insulated wire cores, be wrapped with the one-step method silanes crosslinked ethylene-propylene rubber low-smoke non-halogen flame-retardant of one deck oversheath in described insulated wire cores, this fire-retardant oversheath is that compound silane is injected extruder directly and ethylene-propylene rubber blend, grafting, moulding and make.
One-step method silanes crosslinked ethylene-propylene rubber processing technology be with compound silane inject extruder directly with ethylene-propylene rubber blend, grafting, moulding, flow process is simple, accurate measurement, control easily.Its concrete technological process as shown in Figure 1.
From the technological process as can be seen: one-step method silanes crosslinked ethylene-propylene rubber processing technology is simple especially, and production efficiency improves greatly, and has avoided sneaking into of introduced contaminants effectively, and the electrical property of insulation is protected.
1. oversheath characteristics
One-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables oversheath also is a low-smoke halogen-free flame retardant, adopts low-smoke and halogen-free flame retardant polyolefin jacket material, emergent gas corrosivity index during burning: pH value 〉=4.3, conductivity≤10 μ S/mm.This oversheath also has the favorable mechanical physical property simultaneously, satisfies the mechanical performance requirement of cable.
2. product performance
A) one-step method silanes crosslinked ethylene-propylene rubber is adopted in insulation, and multi-core type can carry out the color phase-splitting, and its performance satisfies the national standard requirement.
B) the finished product bending radius is little, can reach 6 times the outside diameter of cable.
C) can be up to state standards A, B, the C three class flame retardant ratings of GB/T18380 regulation.
Emergent gas corrosivity met the regulation of GB/T17650 when d) sheath burnt.PH value 〉=4.3 wherein, conductivity≤10 μ S/mm.
E) installation of cable, maintenance cost are low.
Description of drawings
Fig. 1 is the one-step method silanes crosslinked ethylene-propylene rubber process chart of the utility model;
Fig. 2 is the uni-core flame-retardant direct current cables structural representation among the utility model first embodiment;
Fig. 3 is the armouring type uni-core flame-retardant direct current cables structural representation among second embodiment;
Fig. 4 is the fire-retardant direct current cables structural representation of the multicore among the 3rd embodiment;
Fig. 5 is the fire-retardant direct current cables structural representation of armouring type multicore among the 4th embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
See also Fig. 2: be a specific embodiment of the present utility model, this one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables comprises single insulated wire cores 1, and described insulated wire cores 1 comprises conductor 10 and is wrapped in the insulating barrier 11 of these conductor 10 peripheries.Be wrapped with the one-step method silanes crosslinked ethylene-propylene rubber low-smoke non-halogen flame-retardant of one deck oversheath 2 in described insulated wire cores 1, this oversheath 2 is that compound silane is injected extruder directly and ethylene-propylene rubber blend, grafting, moulding and make.
Shown in Fig. 4,5: the number of described insulated wire cores 1 can be 3, and by mutual stranded the forming of these 3 insulated wire cores, the gap between each insulated wire cores 1 is filled with filler 3, and then packs tightly with band 4.
Shown in Fig. 3,5: in order further to increase the barrier propterty of cable, prevent that mouse stings bad cable, between described insulated wire cores 1 and low-smoke non-halogen flame-retardant oversheath 2, can also set up inner covering 5 and armour 6.
In the utility model, the rated voltage of described one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables is respectively 750V, 1500V, 3000V, the direct current cables conductor meets the regulation of the 1st class among the GB/T3956, the 2nd class, the 5th class, the regulation of insulation nominal thickness, shielding, armouring and the equal accord with Q/HBF027-2003 of oversheath.
Claims (5)
1, a kind of one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables, comprise insulated wire cores (1), it is characterized in that: be wrapped with the one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant oversheath of one deck (2) in described insulated wire cores (1), this low-smoke non-halogen flame-retardant oversheath (2) is that compound silane is injected extruder directly and ethylene-propylene rubber blend, grafting, moulding and make.
2, one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables according to claim 1 is characterized in that: described insulated wire cores (1) comprises conductor (10) and is wrapped in the peripheral insulating barrier (11) of this conductor (10).
3, one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables according to claim 1, it is characterized in that: the number of described insulated wire cores (1) is 3 or a plurality of, and by stranded the forming of a plurality of insulated wire cores (1), gap between each insulated wire cores (1) is filled with filler (3), and pack tightly with band (4), each insulated wire cores (1) comprises conductor (10) and is wrapped in the peripheral insulating barrier (11) of this conductor (10).
4, according to claim 1 or 2 or 3 described one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cabless, it is characterized in that: between described insulated wire cores (1) and low-smoke non-halogen flame-retardant oversheath (2), also be enclosed with inner covering (5) and armour (6).
5, one-step method silanes crosslinked ethylene propylene rubber insulated low-smoke non-halogen flame-retardant direct current cables according to claim 1, it is characterized in that: the processing technology of described low-smoke non-halogen flame-retardant oversheath (2) is: automatic gauge accounts for the ethylene-propylene rubber raw material of total amount 97%～99% and accounts for the liquid silane and the auxiliary agent of total amount 1%～3%, put into three-layer co-extruded extruder and melt the moulding of hybrid junction branch, and then carry out warm water crosslinking, make insulated product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103467 CN2667617Y (en) | 2003-11-17 | 2003-11-17 | One-step silane cross-linked ethylene-propylene rubber insulation low-smoke non-halogen flame resistan DC cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320103467 CN2667617Y (en) | 2003-11-17 | 2003-11-17 | One-step silane cross-linked ethylene-propylene rubber insulation low-smoke non-halogen flame resistan DC cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667617Y true CN2667617Y (en) | 2004-12-29 |
Family
ID=34340558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320103467 Expired - Fee Related CN2667617Y (en) | 2003-11-17 | 2003-11-17 | One-step silane cross-linked ethylene-propylene rubber insulation low-smoke non-halogen flame resistan DC cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667617Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863700A (en) * | 2012-09-28 | 2013-01-09 | 江苏恒峰线缆有限公司 | Warm water cross-linkable ethylene-propylene rubber and preparation method thereof |
-
2003
- 2003-11-17 CN CN 200320103467 patent/CN2667617Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863700A (en) * | 2012-09-28 | 2013-01-09 | 江苏恒峰线缆有限公司 | Warm water cross-linkable ethylene-propylene rubber and preparation method thereof |
| CN102863700B (en) * | 2012-09-28 | 2015-01-21 | 江苏恒峰线缆有限公司 | Warm water cross-linkable ethylene-propylene rubber and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041229 Termination date: 20111117 |