CN210443320U - Flame-retardant heat-resistant cable - Google Patents

Flame-retardant heat-resistant cable Download PDF

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Publication number
CN210443320U
CN210443320U CN201921416811.4U CN201921416811U CN210443320U CN 210443320 U CN210443320 U CN 210443320U CN 201921416811 U CN201921416811 U CN 201921416811U CN 210443320 U CN210443320 U CN 210443320U
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CN
China
Prior art keywords
flame
cable
covering
layer
retardant
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921416811.4U
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Chinese (zh)
Inventor
孙超南
臧文丙
刘金利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Huayang Cable Industry Co Ltd
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Guangdong Huayang Cable Industry Co Ltd
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Priority to CN201921416811.4U priority Critical patent/CN210443320U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

The utility model discloses a flame-retardant heat-resistant cable, which comprises a cable core and a sheath, wherein the cable core and the sheath are composed of a plurality of conductors, the conductors are provided with insulating layers, and the insulating layers and the sheath are both made of ultraviolet crosslinking halogen-free low-smoke flame-retardant heat-resistant polyolefin materials; the cable core sequentially wraps the first polyester tape winding layer, the shielding layer and the second polyester tape winding layer from inside to outside, and a filling layer made of a halogen-free low-smoke flame-retardant inorganic paper rope is arranged between the cable core and the first polyester tape winding layer. The cable manufactured by the technical scheme can greatly improve the flame retardant and heat resistant performances of the cable.

Description

Flame-retardant heat-resistant cable
Technical Field
The utility model relates to a fire-retardant heat-resisting cable belongs to electric wire, cable technical field.
Background
With the acceleration of China's social and economic construction pace, the flame-retardant and heat-resistant cable is widely applied to important departments such as petroleum, petrifaction, high-rise buildings, subways, power plants, nuclear power plants, tunnels and the like and densely populated public places, when a fire disaster occurs, the cable does not release corrosive gas during combustion, has good light transmittance, is greatly helpful for rescue work, and can reduce casualties and property loss to a great extent.
The development of domestic flame-retardant heat-resistant cables is late, the technical levels of various manufacturers are different, and the requirements on flame retardance and heat resistance are higher and higher in recent years, so that many manufacturers cannot design and produce flame-retardant heat-resistant cable products meeting technical requirements due to limited technical strength. The manufacturers are required to break through the technical barriers, establish own research and development teams, and develop products with independent intellectual property rights, so that the rapid development of enterprises is certainly driven, and good social and economic benefits are certainly generated.
Disclosure of Invention
The utility model provides a fire-retardant heat-resisting cable, its aim at solve the shortcoming that current cable is fire-retardant, heat resistance is poor.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a flame-retardant heat-resistant cable comprises a cable core and a sheath, wherein the cable core consists of a plurality of conductors, the conductors are provided with insulating layers, and the insulating layers and the sheath are both made of ultraviolet cross-linked halogen-free low-smoke flame-retardant heat-resistant polyolefin materials; the cable core wraps up first polyester area in proper order from inside to outside around covering, shielding layer and second polyester area around the covering, be equipped with the filling layer that adopts halogen-free low fire-retardant inorganic paper rope of cigarette to make between cable core and the first polyester area around the covering.
Furthermore, a longitudinal wrapping structure is arranged inside the insulating layer and is made of a polytetrafluoroethylene material.
Furthermore, the shielding layer is a double-layer shielding structure woven by aluminum-plastic composite longitudinal wrapping strips and tinned copper wires.
Further, the second polyester area still is equipped with the third around the covering outside the covering, the third adopts the cotton area to wind the package structure around the covering.
Further, the conductor is formed by stranding 7 strands of tin-plated copper.
From the above description of the present invention, compared with the prior art, the advantages of the present invention lie in:
the utility model discloses a filling layer and the polyester area of high temperature resistance that ultraviolet irradiation cross-linking halogen-free low smoke flame retardant polyolefin insulating layer, halogen-free low smoke flame retardant inorganic paper rope made are around the covering, make the heat-resisting grade and the mechanical properties of cable improve greatly, ensure that the cable has excellent halogen-free, low smoke, fire-retardant, heat-resisting and mechanical properties, can let the service temperature of cable reach 150 ℃, compare with ordinary control cable, heat-resisting grade is high, life obviously increases.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, a flame-retardant and heat-resistant cable includes a cable core composed of a plurality of conductors 2 and a sheath 1. The conductor 2 is provided with an insulating layer 21, and the insulating layer 21 and the sheath 1 are both made of ultraviolet crosslinking halogen-free low-smoke flame-retardant heat-resistant polyolefin material. The cable core sequentially wraps the first polyester tape winding layer 3, the shielding layer 4 and the second polyester tape winding layer 5 from inside to outside, a filling layer 6 made of a halogen-free low-smoke flame-retardant inorganic paper rope is arranged between the cable core and the first polyester tape winding layer 3, and the shielding layer 4 is arranged between the first polyester tape winding layer 3 and the second polyester tape winding layer 5, so that the shielding layer 4 is prevented from being damaged when the temperature is too high. The utility model discloses a filling layer 6 and two-layer high temperature resistance polyester area that ultraviolet irradiation cross-linking halogen-free low smoke flame retardant polyolefin insulating layer 21, halogen-free low smoke flame retardant inorganic paper rope made wind the covering, make the heat-resisting grade and the mechanical properties of cable improve greatly, ensure that the cable has excellent halogen-free, low smoke, fire-retardant, heat-resisting and mechanical properties, can let the service temperature of cable reach 150 ℃, compare with ordinary cable, heat-resisting grade is high, life obviously increases.
Referring to fig. 1, the insulating layer 21 of the present invention is provided with a longitudinal wrapping structure 22 inside, and the longitudinal wrapping structure 22 is made of teflon. The polytetrafluoroethylene longitudinal wrapping structure 22 is not only softer in mechanical property, but also resistant to high temperature and corrosion, and further improves the high temperature resistance and corrosion resistance of the cable.
Referring to the attached drawing 1, the shielding layer 4 of the present invention is a double-layer shielding structure woven by aluminum-plastic composite longitudinal wrapping tape and tinned copper wire. The double-layer shielding structure woven by the aluminum-plastic composite longitudinal wrapping tape and the tinned copper wire has excellent anti-interference performance, and can prevent signals from being interfered by strong signals and electromagnetic waves in the transmission process.
Referring to fig. 1, the cable of the present invention is further provided with a third wrapping layer 7 around the covering layer 5, and the third wrapping layer 7 is a cotton tape wrapping structure. The cotton tape wrapping layer structure is adopted, and the wrapping and covering rate is more than or equal to 30%.
Referring to fig. 1, the conductor 2 of the present invention is formed by twisting 7 strands of tinned copper. The conductor 2 is formed by twisting ultra-soft tinned copper, has a stable structure and improves the tensile property of the cable.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (5)

1. The utility model provides a fire-retardant heat-resisting cable, includes cable core and sheath that the plural root conductor constitutes, its characterized in that: the conductor is provided with an insulating layer, and the insulating layer and the sheath are both made of ultraviolet crosslinking halogen-free low-smoke flame-retardant heat-resistant polyolefin materials; the cable core wraps up first polyester area in proper order from inside to outside around covering, shielding layer and second polyester area around the covering, be equipped with the filling layer that adopts halogen-free low fire-retardant inorganic paper rope of cigarette to make between cable core and the first polyester area around the covering.
2. A flame and heat resistant cable according to claim 1, wherein: the insulating layer is internally provided with a longitudinal wrapping structure, and the longitudinal wrapping structure is made of polytetrafluoroethylene materials.
3. A flame and heat resistant cable according to claim 1, wherein: the shielding layer is a double-layer shielding structure woven by aluminum-plastic composite longitudinal wrapping strips and tinned copper wires.
4. A flame and heat resistant cable according to claim 1, wherein: the second polyester area still is equipped with the third around the covering outside the covering, the third adopts the cotton area to wind a packet structure around the covering.
5. A flame and heat resistant cable according to any one of claims 1 to 4, wherein: the conductor is formed by 7 strands of tinned copper in a twisted mode.
CN201921416811.4U 2019-08-29 2019-08-29 Flame-retardant heat-resistant cable Active CN210443320U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921416811.4U CN210443320U (en) 2019-08-29 2019-08-29 Flame-retardant heat-resistant cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921416811.4U CN210443320U (en) 2019-08-29 2019-08-29 Flame-retardant heat-resistant cable

Publications (1)

Publication Number Publication Date
CN210443320U true CN210443320U (en) 2020-05-01

Family

ID=70409742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921416811.4U Active CN210443320U (en) 2019-08-29 2019-08-29 Flame-retardant heat-resistant cable

Country Status (1)

Country Link
CN (1) CN210443320U (en)

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