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 PDF

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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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Active
Application number
CN201921611144.5U
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Chinese (zh)
Inventor
王冰
韩福利
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Shenyang Shenlan Sihuan Cable Manufacturing Co ltd
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Shenyang Shenlan Sihuan Cable Manufacturing Co ltd
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Priority to CN201921611144.5U priority Critical patent/CN210378585U/en
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Publication of CN210378585U publication Critical patent/CN210378585U/en
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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

750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette
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.
CN201921611144.5U 2019-09-26 2019-09-26 750V does not have steamed low fire-resistant high temperature resistant twisted pair for fixed wiring of cigarette Active CN210378585U (en)

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 Active 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)

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