CN104200919A - Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable - Google Patents
Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable Download PDFInfo
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- CN104200919A CN104200919A CN201410404459.8A CN201410404459A CN104200919A CN 104200919 A CN104200919 A CN 104200919A CN 201410404459 A CN201410404459 A CN 201410404459A CN 104200919 A CN104200919 A CN 104200919A
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- temperature resistant
- lapping layer
- low temperature
- halogen
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Abstract
The invention discloses a low temperature resistant LSZH A type pure tinned shielding instrument signal cable. The low temperature resistant LSZH A type pure tinned shielding instrument signal cable comprises a cable core and an overall taped covering layer, an overall shielding layer and a protective sleeve layer sequentially wrapped outside the cable core, the cable core is formed by pair twisting two twisted wires, the twisted wire groups comprises a wire core and a sub-taped covering layer and a sub-shielding layer sequentially wrapped outside the wire core, the wire core is formed by pair twisting two leads, the overall taped covering layer and the sub-taped covering layer are both zero-halogen taped covering layers, the overall shielding layer and the sub-shielding layer are formed by weaving tinned copper wires, and the insulating layer and the protective layer are both made of LSZH flame retardant polyolefin materials. The low temperature resistant LSZH A type pure tinned shielding instrument signal cable can work in a low-temperature environment for a long time, is good in magnetic shielding performance and pollution-free after burning due to LSZH flame retardant performance.
Description
Technical field
The present invention relates to cable technology field, relate in particular to the pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A.
Background technology
Instrument signal cable is widely used in the fields such as power plant, metallurgy, chemical industry, oil, communication, and still, it is vulnerable to external electromagnetic interference.Meanwhile, in order to meet the demand of market to cold-resistant instrument signal cable, and smog, pernicious gas, the corrosive gas that when breaking out of fire, cable fire can be produced are controlled in lower scope.Therefore, how to manufacture a kind of novel cold-resistant instrument signal cable, when guaranteeing its anti-electromagnetic interference performance, there is the characteristic of low smoke and zero halogen environmental protection, become those skilled in the art assistant officer's problem to be solved.
Summary of the invention
For solving the technical problem existing in background technology, the present invention proposes the pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A, and advantages of good shielding performance is low temperature resistant, and environmental protection flame retardant.
The pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A that the present invention proposes, comprising: cable core, be coated on cable core outside total lapping layer, be coated on total lapping layer outside total screen, be coated on the restrictive coating of total screen outside; Cable core is formed by two twisted wire group pair twists, each twisted wire group comprises core, is coated on minute lapping layer of core outside and is coated on a minute sub-shield for lapping layer outside, core is formed by two wire pair twists, wire comprises conductor and is coated on the insulating barrier of conductor outside, conductor is formed by many soft copper conductor bundle strands, insulating barrier adopts low smoke halogen-free flame-retardant polyolefin insulating material to make, and sub-shield adopts tinned copper wire braiding to form; Total screen adopts tinned copper wire braiding to form, and restrictive coating adopts low-smoke and halogen-free flame retardant polyolefin jacket material to extrude and forms.
Preferably, the gap-fill between total lapping layer and two twisted wire groups has packing material.
Preferably, packing material is bittern-free flame-proof material.
Preferably, total lapping layer is Halogen lapping layer.
Preferably, dividing lapping layer is Halogen lapping layer.
In the present invention, the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A proposing, comprise cable core and be coated on successively total lapping layer of cable core outside, total screen and restrictive coating, cable core is formed by two twisted wire group pair twists, twisted wire group comprises core and is coated on successively minute lapping layer and the sub-shield of core outside, core is formed by two wire pair twists, total lapping layer and a minute lapping layer are Halogen lapping layer, total screen and sub-shield all adopt tinned copper wire braiding to form, insulating barrier and restrictive coating all adopt low-smoke halide-free fireproof composite polyolefine material to make.With the cable of above-mentioned structural configuration mode, it can work for a long time under low temperature environment, and magnetic shield performance is good, while low-smoke non-halogen flame-retardant, environmentally safe after burning.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A that proposes of the present invention.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of the pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A that proposes of the present invention.
With reference to Fig. 1, the pure zinc-plated shielding instrument signal cable of a kind of low temperature resistant low-smoke non-halogen flame-retardant category-A that the present invention proposes, comprising: cable core, total lapping layer 3, total screen 4, restrictive coating 5;
Cable core is formed by two twisted wire group 1 pair twists, gap-fill between two twisted wire groups 1 has halogen-free flameproof packing material 2, each twisted wire group 1 comprises core, divide lapping layer 12 and sub-shield 13, core is formed by two wire 11 pair twists, wire 11 comprises the conductor 111 that is positioned at middle part, conductor 111 is formed by many soft copper conductor bundle strands, conductor 111 outsides are coated with insulating barrier 112, insulating barrier 112 adopts low smoke halogen-free flame-retardant polyolefin insulating material to make, its resistance to-40 ℃ low temperature, guarantee not ftracture under low temperature environment, dividing lapping layer 12 is Halogen lapping layer, it is coated on core outside, sub-shield 13 adopts tinned copper wire braiding to form, it is coated on minute lapping layer 12 outsides, protection core is not subject to external electromagnetic radiated interference,
Total lapping layer 3 is Halogen lapping layer, it is coated on cable core outside, it tightly fetters cable core internal structure, total screen 4 adopts tinned copper wire braiding to form and be coated on total lapping layer 3 outsides, it further improves the anti-electromagnetic interference performance of cable, play the effect of double layer screen together with sub-shield 13, restrictive coating 5 adopts low-smoke and halogen-free flame retardant polyolefin jacket material to make, and it is extruded in total screen 4 outsides.
The cable that the present embodiment proposes, wherein material is low smoke and zero halogen environment-friendly materials, has guaranteed that cable is at aflame low cigarette environmental-protecting performance.
Between total lapping layer 3 and twisted wire group 1, fill halogen-free flameproof packing material 2, guaranteed the rounding of cable core, when cable is subject to External Force Acting, the position of twisted wire group 1 is difficult for being moved.
In the present embodiment, the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A proposing, comprise cable core and be coated on successively total lapping layer of cable core outside, total screen and restrictive coating, cable core is formed by two twisted wire group pair twists, twisted wire group comprises core and is coated on successively minute lapping layer and the sub-shield of core outside, core is formed by two wire pair twists, total lapping layer and a minute lapping layer are Halogen lapping layer, total screen and sub-shield all adopt tinned copper wire braiding to form, insulating barrier and restrictive coating all adopt low-smoke halide-free fireproof composite polyolefine material to make.With the cable of above-mentioned structural configuration mode, it can work for a long time under low temperature environment, and magnetic shield performance is good, while low-smoke non-halogen flame-retardant, environmentally safe after burning.
According to the pure zinc-plated shielding instrument signal cable of the low temperature resistant low-smoke non-halogen flame-retardant category-A of the present embodiment, after testing, it is long-term allows working temperature-40 ℃ to+70 ℃, cable is installed temperature and is not less than-15 ℃, finished cable fire resistance reaches bunchy burning category-A, cable gas acidity PH >=4.3 after burning, conductivity≤10 μ S/mm, light transmittance >=70%.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A, it is characterized in that, comprising: cable core, be coated on cable core outside total lapping layer (3), be coated on the outside total screen (4) of total lapping layer (3), be coated on the outside restrictive coating (5) of total screen (4); Cable core is formed by two twisted wire groups (1) pair twist, each twisted wire group (1) comprises core, is coated on minute lapping layer (12) of core outside and is coated on the outside sub-shield (13) of a minute lapping layer (12), core is formed by two wires (11) pair twist, wire (11) comprises conductor (111) and is coated on the outside insulating barrier (112) of conductor (111), conductor (111) is formed by many soft copper conductor bundle strands, insulating barrier (112) adopts low smoke halogen-free flame-retardant polyolefin insulating material to make, and sub-shield (13) adopts tinned copper wire braiding to form; Total screen (4) adopts tinned copper wire braiding to form, and restrictive coating (5) adopts low-smoke and halogen-free flame retardant polyolefin jacket material to extrude and forms.
2. the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A according to claim 1, is characterized in that, the gap-fill between total lapping layer (3) and two twisted wire groups (1) has packing material (2).
3. the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A according to claim 2, is characterized in that, packing material (2) is bittern-free flame-proof material.
4. the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A according to claim 1, is characterized in that, total lapping layer (3) is Halogen lapping layer.
5. the pure zinc-plated shielding instrument signal cable of low temperature resistant low-smoke non-halogen flame-retardant category-A according to claim 1, is characterized in that, a minute lapping layer (12) is Halogen lapping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404459.8A CN104200919A (en) | 2014-08-15 | 2014-08-15 | Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404459.8A CN104200919A (en) | 2014-08-15 | 2014-08-15 | Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable |
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| Publication Number | Publication Date |
|---|---|
| CN104200919A true CN104200919A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410404459.8A Pending CN104200919A (en) | 2014-08-15 | 2014-08-15 | Low temperature resistant LSZH (Low Smoke Zero Halogen) A type pure tinned shielding instrument signal cable |
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| CN (1) | CN104200919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
-
2014
- 2014-08-15 CN CN201410404459.8A patent/CN104200919A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695019A (en) * | 2018-05-22 | 2018-10-23 | 安徽天康(集团)股份有限公司 | A kind of flame-retardant pull tension long haul communication instrument signal cable |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |
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| WD01 | Invention patent application deemed withdrawn after publication |