CN210378585U - 750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette - Google Patents
750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette Download PDFInfo
- Publication number
- CN210378585U CN210378585U CN201921611144.5U CN201921611144U CN210378585U CN 210378585 U CN210378585 U CN 210378585U CN 201921611144 U CN201921611144 U CN 201921611144U CN 210378585 U CN210378585 U CN 210378585U
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- Prior art keywords
- stranded
- groups
- cable
- resistant
- mica tape
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- Expired - Fee Related
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 10
- 235000019504 cigarettes Nutrition 0.000 title description 6
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 239000010445 mica Substances 0.000 claims abstract description 12
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 12
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 238000004132 cross linking Methods 0.000 claims abstract description 5
- 229910052736 halogen Inorganic materials 0.000 abstract description 3
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 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 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
A750V halogen-free low-smoke fire-resistant high-temperature-resistant twisted pair for fixed wiring is characterized in that a single-stranded cable comprises a mica tape and an irradiation cross-linked polyolefin insulating layer which are sequentially extruded on the outer layer of seven groups of cylindrical twisted copper conductors, and filling ropes are arranged in gaps among the twisted copper conductors and gaps among the mica tape and the twisted copper conductors. The single-stranded cables are used in groups, and every two groups of single-stranded cables are arranged in parallel and form a twisted pair cable after being wound and twisted. The utility model discloses practical stranded conductor has increased the current-carrying capacity of cable. Particularly, the current-carrying capacity of the cable is further improved by twisting the double cores into groups. The stranded conductor is wrapped by a fireproof layer of the mica tape, and the mica tape is wrapped by an irradiated irradiation crosslinking polyolefin insulating layer at the temperature of 105 ℃, so that the stranded conductor has the characteristics of fire resistance, high temperature resistance, no halogen, low smoke and flame retardance.
Description
Technical Field
The utility model relates to the technical field of cables, a 750V does not have steamed low fire-resistant high temperature resistant twisted pair line for fixed wiring of cigarette is provided very much.
Background
In the field of wire and cable technology, the maximum allowable working temperature is 70 ℃. Because the temperature-resistant grade is low, the current-carrying capacity is relatively low, and the problems of poor environmental protection property and safety property are further caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 750V does not have steamed low fire-resistant high temperature resistant pair line for fixed wiring of cigarette of steamed low cigarette with high temperature resistant.
The utility model particularly provides a 750V does not have steamed low fire-resistant high temperature resistant pair line for fixed wiring of cigarette that smokes, single stranded cable 4 includes and crowds package mica tape 2 and irradiation cross-linked polyolefin insulating layer 3 in seven groups of columniform transposition copper conductor 1 outer layers in proper order.
The single-stranded cables 4 are used in groups, and every two groups of the single-stranded cables 4 are arranged in parallel and are twisted to form a twisted pair cable.
The utility model discloses practical stranded conductor has increased the current-carrying capacity of cable. Particularly, the current-carrying capacity of the cable is further improved by twisting the double cores into groups. The stranded conductor is wrapped by a fireproof layer of the mica tape, and the mica tape is wrapped by an irradiated irradiation crosslinking polyolefin insulating layer at the temperature of 105 ℃, so that the stranded conductor has the characteristics of fire resistance, high temperature resistance, no halogen, low smoke and flame retardance.
The cable increased the current-carrying capacity, cable material environmental protection is nontoxic, harmless, fire-resistant, fire-retardant safe and reliable, has reached green's effect to the life of cable has been prolonged.
Drawings
The invention is described in further detail below with reference to the drawings in the specification:
fig. 1 is a schematic cross-sectional view of the present invention.
Description of the symbols of the drawings:
1 stranded copper conductor, 2 mica tapes, 3 irradiation crosslinking polyolefin insulation layers and 4 single-stranded cables.
Detailed Description
Example 1
A750V halogen-free low-smoke fire-resistant high-temperature-resistant twisted pair for fixed wiring is characterized in that a single-stranded cable 4 comprises a mica tape 2 and an irradiation cross-linked polyolefin insulating layer 3 which are sequentially extruded and wrapped on the outer layer of seven groups of cylindrical stranded copper conductors 1.
The single-stranded cables 4 are used in groups, and every two groups of the single-stranded cables 4 are arranged in parallel and are twisted to form a twisted pair cable.
The practical stranded conductor of this embodiment has increased the current-carrying capacity of cable. Particularly, the current-carrying capacity of the cable is further improved by twisting the double cores into groups. The stranded conductor is wrapped by a fireproof layer of the mica tape, and the mica tape is wrapped by an irradiated irradiation crosslinking polyolefin insulating layer at the temperature of 105 ℃, so that the stranded conductor has the characteristics of fire resistance, high temperature resistance, no halogen, low smoke and flame retardance.
The cable described in the embodiment increases the current-carrying capacity, and the cable material is environment-friendly, non-toxic, harmless, fire-resistant, flame-retardant, safe and reliable, so that the green and environment-friendly effect is achieved, and the service life of the cable is prolonged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Moreover, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Claims (1)
1. The utility model provides a 750V does not have steamed fire-resistant high temperature resistant twisted pair for fixed wiring of low smoke, its characterized in that: the single-stranded cable (4) comprises a mica tape (2) and an irradiation crosslinking polyolefin insulating layer (3) which are sequentially extruded on the outer layer of seven groups of cylindrical stranded copper conductors (1); the single-stranded cables (4) are used in groups, and every two groups of the single-stranded cables (4) are arranged in parallel and form a twisted pair cable after being wound and twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921611144.5U CN210378585U (en) | 2019-09-26 | 2019-09-26 | 750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921611144.5U CN210378585U (en) | 2019-09-26 | 2019-09-26 | 750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378585U true CN210378585U (en) | 2020-04-21 |
Family
ID=70255442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921611144.5U Expired - Fee Related CN210378585U (en) | 2019-09-26 | 2019-09-26 | 750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378585U (en) |
-
2019
- 2019-09-26 CN CN201921611144.5U patent/CN210378585U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |