CN213958659U - Multifunctional reinforced overhead insulated cable - Google Patents

Multifunctional reinforced overhead insulated cable Download PDF

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Publication number
CN213958659U
CN213958659U CN202022926758.1U CN202022926758U CN213958659U CN 213958659 U CN213958659 U CN 213958659U CN 202022926758 U CN202022926758 U CN 202022926758U CN 213958659 U CN213958659 U CN 213958659U
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China
Prior art keywords
layer
water
cable
wall
insulated cable
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CN202022926758.1U
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Chinese (zh)
Inventor
蔡维科
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Jiangsu Zhongrou Cable Co ltd
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Jiangsu Zhongrou Cable Co ltd
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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 multifunctional reinforced overhead insulated cable, which comprises a steel core conductor bundle, wherein the outer wall of the steel core conductor bundle is wrapped by an insulating layer, the outer wall of the insulating layer is wrapped by a semi-conductive outer shielding layer, the outer surface of the semi-conductive outer shielding layer is provided with a flame-retardant filler, the outer wall of the flame-retardant filler is provided with a water-resistant layer, the outer wall of the water-resistant layer is wrapped by a cable-forming wrapping, the outer wall of the cable-forming wrapping is wrapped by a flame-retardant outer sheath, the outer wall of the flame-retardant outer sheath is provided with a water-resistant layer, the outer wall of the water-resistant layer is provided with a steel strip armoring layer, the water-resistant layer is arranged between the cable-forming wrapping and the flame-retardant filler and is divided into a water-absorbing belt and a water-resistant wrapping, when water enters the inside of the cable, the water-absorbing belt absorbs water and expands, the gap inside the cable is filled with the water, the water is prevented from flowing transversely to cause short circuit, and the problem of water entering inside the cable can be prevented, the probability of short circuit of the circuit caused by water entering the cable is reduced.

Description

Multifunctional reinforced overhead insulated cable
Technical Field
The utility model belongs to the technical field of the cable, concretely relates to overhead insulated cable of multifunctionality strenghthened type.
Background
An overhead cable (called overhead insulated cable) is an overhead conductor provided with an insulating layer and a protective sheath, adopts a special cable manufactured by a production process similar to a crosslinked cable, is a new power transmission mode between the overhead conductor and an underground cable, is generally a single-core cable, and can be divided into a duralumin wire structure, a harddrawn copper wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core thread structure (the wire core can be duralumin or duralumin wire) and the like according to different structures. The power supply system has the main characteristics of high power supply reliability, good power supply safety, convenience in erection and maintenance, reasonable economy and the like. The main technical parameters of the overhead cable comprise weather resistance, insulation level, inner and outer semi-conductive shielding layers, the overhead cable is widely applied to power transmission at home and abroad, most of the existing overhead cables have higher requirements on insulation and conductivity, but the safety of the cable needs to be further enhanced.
The existing overhead insulation technology has the following problems: most of the existing aerial cables have high requirements on insulativity and conductivity, and the requirements on the protection function are not strict, so that the existing aerial cables have single functions and cannot meet the requirements of production and life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a built on stilts insulated cable of multifunctionality strenghthened type to the current aerial [ insulated ] cable function that provides in solving above-mentioned background art is more single, can not satisfy the problem of the needs of production life.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multi-functional strenghthened type aerial insulated cable, includes steel core conductor bundle, the outer wall parcel of steel core conductor bundle has the insulating layer, the outer wall parcel of insulating layer has semiconduction outer shielding layer, the surface of semiconduction outer shielding layer is provided with fire-retardant filler, the outer wall of fire-retardant filler is provided with the water blocking layer, the outer wall parcel of water blocking layer has the stranding around the package, the stranding has fire-retardant oversheath around the outer wall parcel of package, the outer wall of fire-retardant oversheath is provided with the water blocking layer, the outer wall of water blocking layer is provided with the steel band armor.
Preferably, the water-blocking layer includes the area that absorbs water and the band that blocks water, the inside of water-blocking layer is provided with the area that absorbs water, the outer wall cladding in the area that absorbs water has the band that blocks water, the area that absorbs water is including absorbing water layer and base cloth, the upper end in the area that absorbs water is provided with the layer that absorbs water, the lower extreme on the layer that absorbs water is provided with the base cloth.
Preferably, the cabling wrapping comprises a halogen-free tape wrapping and an aluminum-plastic composite tape wrapping, the halogen-free tape wrapping is arranged inside the cabling wrapping, and the outer surface of the halogen-free tape wrapping is coated with the aluminum-plastic composite tape wrapping.
Preferably, the comprehensive sheath layer is arranged on the inner side of the steel strip armor layer, the PP belting layer is arranged on the inner side of the comprehensive sheath layer, and a flow relief line is arranged between the PP belting layer and the comprehensive sheath layer.
Preferably, the steel core conductor bundle is formed by copper conductors twisted together.
Preferably, the material of the flame-retardant filler is glass fiber.
Preferably, the flame-retardant outer sheath is made of ceramic halogen-free polyolefin.
Preferably, the insulating layer is made of a silicon rubber insulating material.
Compared with the prior art, the utility model provides a many functional strenghthened type aerial insulated cable possesses following beneficial effect:
1. the utility model discloses a be provided with the water blocking layer around the package and fire-retardant packing at the stranding between, the water blocking layer divide into the area that absorbs water and blocks water around the package, when the inside water intaking of cable, the area that absorbs water and swells, is full of the inside gap of cable, prevents that water lateral flow from causing the circuit short circuit, can effectively prevent the inside problem of intaking of cable, greatly reduced the inside probability that intakes and lead to the circuit short circuit of cable.
2. The utility model discloses a material of fire-retardant oversheath that uses is ceramic halogen-free polyolefin, the smoke volume of the production that produces when this material burns is little, do not produce poisonous and corrosive gas, and this material can generate hard ceramic form crust under flame firing or high temperature condition, the crust does not melt, does not drip, can resist water and spray and mechanical shock, and have very good thermal-insulated fire-proof effect, can guarantee electric power and information control's unblocked under the conflagration condition, strive for the valuable time for personnel flee and fire rescue.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic structural diagram of an overhead cable according to the present invention;
fig. 2 is a cross-sectional view of the water-blocking layer according to the present invention;
fig. 3 is a cross-sectional view of the water-absorbing belt provided by the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
in the figure: 1. a steel core conductor bundle; 2. an insulating layer; 3. a semiconductive outer shield layer; 4. a flame retardant filler; 5. a water resistant layer; 6. cabling and lapping; 7. a flame retardant outer jacket; 8. a waterproof layer; 9. a steel tape armor layer; 51. a water-absorbing belt; 52. a water-blocking tape 61 and a halogen-free tape are wrapped; 62. and wrapping the aluminum-plastic composite belt.
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 work belong to the protection scope of the present invention.
Please refer to fig. 1-3, the utility model provides a multi-functional strenghthened type aerial insulated cable, including steel core conductor bundle 1, the outer wall parcel of steel core conductor bundle 1 has insulating layer 2, the outer wall parcel of insulating layer 2 has semiconduction outer shielding layer 3, the surface of semiconduction outer shielding layer 3 is provided with fire-retardant filler 4, the outer wall of fire-retardant filler 4 is provided with water blocking layer 5, the outer wall parcel of water blocking layer 5 has the stranding around package 6, the stranding has fire-retardant oversheath 7 around the outer wall parcel of package 6, the outer wall of fire-retardant oversheath 7 is provided with water blocking layer 5, the outer wall of water blocking layer 5 is provided with steel band armor 9.
Referring to fig. 2 and 3, the water-blocking layer 5 includes a water-absorbing belt 51 and a water-blocking tape 52, the water-absorbing belt 51 is disposed inside the water-blocking layer 5, the water-blocking tape 52 is wrapped on the outer wall of the water-absorbing belt 51, the water-absorbing belt 51 includes a water-absorbing layer 511 and a base cloth 522, the water-absorbing layer 511 is disposed at the upper end of the water-absorbing belt 51, and the base cloth 522 is disposed at the lower end of the water-absorbing layer 511.
Referring to fig. 2, the cabling wrapping 6 includes a halogen-free tape wrapping 61 and an aluminum-plastic composite tape wrapping 62, the halogen-free tape wrapping 61 is disposed inside the cabling wrapping 6, and the outer surface of the halogen-free tape wrapping 61 is coated with the aluminum-plastic composite tape wrapping 62.
Specifically, the inner side of the steel strip armor layer 9 is provided with a jacket layer, the inner side of the comprehensive jacket layer is provided with a PP belting layer, and a current leakage line is arranged between the PP belting layer and the comprehensive jacket layer, so that induced or interference current is discharged as soon as possible, and the potential of the whole shielding layer is equal as much as possible.
Specifically, the steel core conductor bundle 1 is composed of 4-6 copper conductors twisted together.
Specifically, the flame-retardant filler 4 is made of glass fiber, which is an inorganic non-metallic material with excellent performance, and has the advantages of good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength.
Specifically, the flame-retardant outer sheath 7 is made of ceramic halogen-free polyolefin, and the material generates a small amount of smoke during combustion and does not generate toxic or corrosive gas.
Specifically, the insulating layer 2 is made of a silicon rubber insulating material, the insulating layer 2 is made of the silicon rubber insulating material, the silicon rubber can resist the temperature of 350 ℃, the insulating layer has excellent insulating property, and the silicon rubber can form a ceramic-like structure after being combusted and has good insulating property.
The utility model discloses a theory of operation and use flow: the utility model discloses install the back well, the utility model discloses when beginning to use, when the overhead cable circular telegram, 2 rapid heating up of insulating layer, insulating layer 2 adopts rubber silicon insulating material when the temperature is too high, can form similar ceramic structure, good insulating properties has, when the inside water intaking of overhead cable, the area 51 that absorbs water in the water blocking layer 5 can absorb water the inflation, be full of the inside gap of cable, prevent that water lateral flow from causing the circuit short circuit, when the overhead cable outside is on fire, fire-retardant oversheath 7 is because its material is ceramic halogen-free polyolefin, this material can generate hard ceramic form crust under flame firing or high temperature condition, has very good thermal-insulated fire prevention effect.
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 (8)

1. The utility model provides a multi-functional strenghthened type aerial insulated cable, includes steel core conductor bundle (1), its characterized in that: the outer wall parcel of steel core conductor bundle (1) has insulating layer (2), the outer wall parcel of insulating layer (2) has semiconduction outer shielding layer (3), the surface of semiconduction outer shielding layer (3) is provided with fire-retardant filler (4), the outer wall of fire-retardant filler (4) is provided with water blocking layer (5), the outer wall parcel of water blocking layer (5) has the stranding around package (6), the stranding has fire-retardant oversheath (7) around the outer wall parcel of package (6), the outer wall of fire-retardant oversheath (7) is provided with water blocking layer (5), the outer wall of water blocking layer (5) is provided with steel band armor (9).
2. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the utility model discloses a waterproof layer, including the waterproof layer (5) absorb water area (51) and the band (52) that blocks water, the inside of waterproof layer (5) is provided with the area that absorbs water (51), the outer wall cladding that absorbs water area (51) has the band (52) that blocks water, absorb water area (51) including absorbing water layer (511) and base cloth (522), the upper end that absorbs water area (51) is provided with layer (511) that absorbs water, the lower extreme that absorbs water layer (511) is provided with base cloth (522).
3. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the finished cable wrapping (6) comprises a halogen-free tape wrapping (61) and an aluminum-plastic composite tape wrapping (62), the halogen-free tape wrapping (61) is arranged inside the finished cable wrapping (6), and the outer surface of the halogen-free tape wrapping (61) is coated with the aluminum-plastic composite tape wrapping (62).
4. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the steel strip armor layer is characterized in that a comprehensive sheath layer is arranged on the inner side of the steel strip armor layer (9), a PP belting layer is arranged on the inner side of the comprehensive sheath layer, and a flow relief line is arranged between the PP belting layer and the comprehensive sheath layer.
5. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the steel core conductor bundle (1) is composed of 4-6 twisted copper conductors.
6. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the flame-retardant filler (4) is made of glass fiber.
7. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the flame-retardant outer sheath (7) is made of ceramic halogen-free polyolefin.
8. The multifunctional reinforced overhead insulated cable of claim 1, wherein: the insulating layer (2) is made of a silicon rubber insulating material.
CN202022926758.1U 2020-12-07 2020-12-07 Multifunctional reinforced overhead insulated cable Active CN213958659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022926758.1U CN213958659U (en) 2020-12-07 2020-12-07 Multifunctional reinforced overhead insulated cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022926758.1U CN213958659U (en) 2020-12-07 2020-12-07 Multifunctional reinforced overhead insulated cable

Publications (1)

Publication Number Publication Date
CN213958659U true CN213958659U (en) 2021-08-13

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Application Number Title Priority Date Filing Date
CN202022926758.1U Active CN213958659U (en) 2020-12-07 2020-12-07 Multifunctional reinforced overhead insulated cable

Country Status (1)

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CN (1) CN213958659U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113035426A (en) * 2021-03-09 2021-06-25 江苏中柔电缆有限公司 Waterproof fire-retardant type transmission cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113035426A (en) * 2021-03-09 2021-06-25 江苏中柔电缆有限公司 Waterproof fire-retardant type transmission cable

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