CN218525342U - High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable - Google Patents
High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable Download PDFInfo
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- CN218525342U CN218525342U CN202222631592.XU CN202222631592U CN218525342U CN 218525342 U CN218525342 U CN 218525342U CN 202222631592 U CN202222631592 U CN 202222631592U CN 218525342 U CN218525342 U CN 218525342U
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- 239000000779 smoke Substances 0.000 title claims abstract description 36
- 238000004891 communication Methods 0.000 title claims abstract description 25
- 239000003063 flame retardant Substances 0.000 claims abstract description 46
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920000098 polyolefin Polymers 0.000 claims abstract description 19
- 230000007613 environmental effect Effects 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 4
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 4
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 230000001988 toxicity Effects 0.000 abstract description 3
- 231100000419 toxicity Toxicity 0.000 abstract description 3
- 210000003608 fece Anatomy 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model relates to a high fire-retardant no drip low smoke density environmental protection non-shielded digital communication cable technical field, including high flame retardant property, low smoke density, nontoxic, no drip, environment-friendly polyolefin sheath skin, high fire-retardant no drip low smoke density environmental protection non-shielded digital communication cable the inner chamber evenly be equipped with by the oxygen-free soft copper wire conductor, carry out two insulating wires pair twist synthetic pair strands behind the high density polyethylene insulation. The non-shielded digital communication cable has the advantages that the flame retardant performance problem of the non-shielded cable for digital communication is solved by adopting the non-metal insulation flame retardant environment-friendly cross magnetic field isolator in the cable core twisted pair, the flame retardant performance indexes of flame spread, low heat release, small smoke yield, generation of droppings in the non-shielded cable during combustion, optimal grade T0 of particles, smoke toxicity, corrosivity and the like are superior to GB/T19666 GB/T32147 standard requirements.
Description
Technical Field
The utility model relates to a non-shielding digital communication cable technical field specifically is a low smoke density environmental protection non-shielding digital communication cable of high fire-retardant no drippage.
Background
The development of polyolefin insulation level twisted pair cables for unshielded digital communication is an important work for digital communication application, and particularly, the quality of the flame retardant property of unshielded cables directly influences the quality and cost of construction of a cross communication system, otherwise more expensive shielded cables need to be adopted as a substitute.
The polyolefin insulation twisted pair cable for the non-shielding digital communication is a main cable for information transmission, relates to an area transmission connecting cable such as a working area and a cross-connecting area of indoor wiring, is also a main cable for horizontal and vertical installation wiring, has four times of the using amount of the polyolefin insulation twisted pair cable for the non-shielding digital communication as a shielding cable, and has potential safety hazard for installation and use in places with high requirements on flame retardance and fire resistance. With the rapid development of economic society, people have higher and higher requirements on flame retardant performance, and particularly, cables with safe flame retardant performance are widely applied to places with dense population, such as subways, airports, hospitals, schools, high-rise buildings and the like.
The existing digital communication cable is mainly made of flammable materials, is very easy to support and burn in case of fire, is not high in flame retardant property and has limitation on fire prevention.
Therefore, the high-flame-retardant no-drop low-smoke-density environment-friendly unshielded digital communication cable is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high fire-retardant no-drip thing low smoke density environmental protection non-shielding digital communication cable to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high fire-retardant no-drip thing low smoke density environmental protection non-shielded digital communication cable, includes that high fire-retardant no-drip thing low smoke density environmental protection polyolefin sheath is outer, the outer inner chamber of high fire-retardant no-drip thing low smoke density environmental protection polyolefin sheath evenly is equipped with by the oxygen-free soft copper wire conductor, carries out the synthetic pair strand wires of two insulated wires pair twists behind the high density polyethylene insulation.
Further, the number of the twisted pairs is four.
Further, the outer inner chamber axle center department of high fire-retardant no-drip thing low smoke density environmental protection polyolefin sheath is equipped with the fire-retardant environmental protection cross magnetic field isolator of non-metallic insulation, carries out the stranding after adopting the fire-retardant environmental protection cross magnetic field isolator of non-metallic insulation to separate each other four groups of twisted pairs.
Furthermore, one or more layers of non-metal thin belts are wrapped outside the twisted pair wires for fixing.
Compared with the prior art, the beneficial effects of the utility model are that: by changing the outer layer of the high-flame-retardant non-dripping-object low-smoke-density environment-friendly polyolefin sheath of the extrusion molding sheath or adopting the non-metallic insulating flame-retardant environment-friendly cross magnetic field isolator in the cable core, the flame retardant performance problem of the non-shielding cable for digital communication is solved, and the flame spread height, the heat release, the smoke yield and the flame retardant performance indexes such as dripping object generation, optimal grade T0 of particles, smoke toxicity and corrosivity during non-shielding cable combustion are superior to the GB/T19666 GB/T32147 standard requirements.
Drawings
Fig. 1 is a schematic structural view (cross section) of embodiment 1 of the present invention;
fig. 2 is a schematic structural view (cross section) of embodiment 2 of the present invention;
in the figure: 1. the outer layer of the high flame retardant no-drip low smoke density environment-friendly polyolefin sheath; 2. pairing the stranded wires; 3. a nonmetal insulation flame-retardant environment-friendly cross magnetic field isolator; 4. a non-metallic thin strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the utility model provides a technical scheme: the utility model provides a high fire-retardant no drip thing low smoke density environmental protection non-shielded digital communication cable, by diameter 0.58mm and following anaerobic soft copper wire conductor, carry out two insulated wire pair twists into pair strand wires 2 after high density polyethylene is insulating, again with four group pair strand wires 2 through carrying out the stranding, extrusion molding sheath one deck high fire-retardant no drip thing low smoke density environmental protection polyolefin sheath is outer 1, furthermore, can also fix around package one deck or the nonmetal thin strip 4 of multilayer in 2 outsides of stranded conductor of stranding cable core, extrusion molding sheath one deck high fire-retardant no drip thing low smoke density environmental protection polyolefin sheath is outer 1 at last.
Example 2
As shown in fig. 2, the utility model designs that four groups of twisted pairs 2 are separated from each other by adopting a non-metallic insulating flame-retardant environment-friendly cross magnetic field isolator 3 and then are cabled, and a layer of high flame-retardant non-dripping low smoke density environment-friendly polyolefin jacket outer layer 1 is arranged on an extrusion molding jacket; the twisted pairs 2 are respectively positioned in a non-metal insulating flame-retardant environment-friendly cross-shaped magnetic field with a cross-shaped structure; in the area separated from the high-flame-retardant no-dripping-object low-smoke-density environment-friendly polyolefin sheath outer layer 1 by the isolator 3, the overall strength and the compression resistance of the high-flame-retardant no-dripping-object low-smoke-density environment-friendly unshielded digital communication cable are enhanced by cross separation, and meanwhile, the twisted wires 2 of each group of cable cores can be respectively protected to prevent mutual interference;
the utility model relates to a, can also fix around package one deck or the nonmetal thin strip 4 of multilayer outside the stranding 2 outside of cable core pair strand wires, extrusion molding sheath one deck high fire-retardant no drip low smoke density environmental protection polyolefin sheath is outer 1 at last.
By changing the outer layer 1 of the high-flame-retardant and non-dripping-object low-smoke-density environment-friendly polyolefin sheath of the extrusion molding sheath or adopting the non-metallic insulating flame-retardant environment-friendly cross magnetic field isolator 3 in the twisted pair cable 2 of the cable core, the flame retardant performance problem of the non-shielded cable for digital communication is solved, and the flame retardant performance indexes of flame spread during the combustion of the non-shielded cable, such as low heat release, small smoke output, dripping generation during the non-combustion, optimal grade T0 of particles, smoke toxicity, corrosivity and the like are superior to the GB/T19666 GB/T32147 standard requirement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A high flame retardant no-drop low smoke density environment-friendly unshielded digital communication cable is characterized in that: the high-flame-retardance dripping-free low-smoke-density environment-friendly polyolefin sheath comprises a high-flame-retardance dripping-free low-smoke-density environment-friendly polyolefin sheath outer layer (1), wherein a pair of stranded wires (2) formed by stranding two insulated wires after being insulated by oxygen-free soft copper wire conductors and high-density polyethylene are uniformly arranged in an inner cavity of the high-flame-retardance dripping-free low-smoke-density environment-friendly polyolefin sheath outer layer (1).
2. A high flame retardant no-drip environment-friendly low smoke density unshielded digital communication cable according to claim 1, characterized in that: the number of the twisted pairs (2) is four.
3. A high flame retardant no-drip environment-friendly low smoke density unshielded digital communication cable according to claim 2, characterized in that: inner chamber axle center department of high fire-retardant no drip low smoke density environmental protection polyolefin sheath skin (1) is equipped with fire-retardant environmental protection cross magnetic field isolator of non-metallic insulation (3), carries out the stranding after adopting fire-retardant environmental protection cross magnetic field isolator of non-metallic insulation (3) to separate each other four group twisted pairs (2).
4. A high flame retardant no-drip environment-friendly low smoke density unshielded digital communication cable according to claim 1 or 3, characterized in that: and one or more layers of non-metallic thin strips (4) are wrapped outside the twisted wires (2) and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222631592.XU CN218525342U (en) | 2022-10-08 | 2022-10-08 | High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222631592.XU CN218525342U (en) | 2022-10-08 | 2022-10-08 | High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218525342U true CN218525342U (en) | 2023-02-24 |
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ID=85248178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222631592.XU Active CN218525342U (en) | 2022-10-08 | 2022-10-08 | High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218525342U (en) |
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2022
- 2022-10-08 CN CN202222631592.XU patent/CN218525342U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 27, Weiyi Road, the Taihu Lake Economic Development Zone, Anqing, Anhui 246400 Patentee after: Anhui Shenlian Optoelectronics Co.,Ltd. Country or region after: Zhong Guo Address before: 246400 No. 27 Weiyi Road, Taihu County Economic Development Zone, Anqing City, Anhui Province Patentee before: ANHUI LASUN COMMUNICATION Co.,Ltd. Country or region before: Zhong Guo |