CN212990756U

CN212990756U - Flame-retardant insulating aerial cable

Info

Publication number: CN212990756U
Application number: CN202021976672.3U
Authority: CN
Inventors: 庄轲; 庄岗岗; 周欣欣; 韩丹丹
Original assignee: Zhuangfei Cable Co ltd
Current assignee: Zhuangfei Cable Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-16
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a flame-retardant insulating aerial cable, which comprises a plurality of telescopic telegraph poles and a cable body arranged on the plurality of telescopic telegraph poles; the cable body comprises a bearing wire core, a heat insulation layer, a lightning protection protective layer and a flame retardant layer which are sequentially arranged, the flame retardant layer is positioned on the outermost side, the bearing wire core comprises a plurality of buffer balls, a cable core and an insulating layer arranged on the outer side of the cable core, and the plurality of buffer balls are uniformly distributed on the surface of the insulating layer; the flexible wire pole is including flexible festival pole, hydraulic press and ground stock, and the hydraulic press is fixed on ground stock top, and the hydraulic press setting still is provided with a hydraulic pedal at the output of hydraulic pedal at the hydraulic press, has solved to have among the prior art aerial [ insulated ] cable can not effectual fire-retardant and lead to causing the problem of conflagration.

Description

Flame-retardant insulating aerial cable

Technical Field

The utility model relates to a cable field, concretely relates to insulating aerial [ insulated ] cable of fire resistance.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. The cable is made of one or more conductors insulated from each other and an outer insulating protective layer, and is used for transmitting power or information from one place to another. Typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

At present, aerial cables are mostly adopted in old power grid transformation of cities, and the aerial cables have the following advantages: various short-circuit faults are greatly reduced, and compared with an overhead bare conductor, the fault rate is 4-6 times lower; the power supply safety is good, and the electric shock casualty accidents of human bodies can be reduced; the tower can be erected on any kind of towers, can also be erected along walls, can also pass through a tree cluster under special conditions, and is directly fixed on the tree poles by hardware fittings; the aerial cable also does not need to carry out special inspection, and short circuit tripping accidents caused by throwing sundries randomly by branch networks and residents or mistaken collision of a crane boom and the like can be avoided, so that the maintenance and overhaul work of the line is greatly reduced.

The aerial cable can not be fire-retardant among the prior art, often self generate heat or outside conflagration arouses the burning in the transmission electric energy, has the aerial cable can not effectual fire-retardant and leads to the problem that causes the conflagration among the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an insulating aerial [ insulated ] cable of fire resistance has solved and has had the aerial [ insulated ] cable can not effectual fire-retardant and lead to the problem that causes the conflagration among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a flame-retardant insulated aerial cable comprises a plurality of telescopic telegraph poles and cable bodies arranged on the telescopic telegraph poles;

the cable body comprises a bearing wire core, a heat insulation layer, a lightning protection protective layer and a flame retardant layer, wherein the heat insulation layer, the lightning protection protective layer and the flame retardant layer are arranged from inside to outside, the flame retardant layer is positioned on the outermost side, the bearing wire core comprises a plurality of buffer balls, a cable core and an insulating layer arranged on the outer side of the cable core, and the plurality of buffer balls are uniformly distributed on the surface of the insulating layer;

the telescopic telegraph pole comprises a telescopic section rod, a hydraulic press and a ground anchor rod, the hydraulic press is fixed to the top end of the ground anchor rod, the telescopic section rod is arranged at the output end of the hydraulic press, and a hydraulic pedal is further arranged on the hydraulic press.

Preferably, the ground stock is cylindricly, a plurality of wall holes have been seted up on the ground stock, just the surface of ground stock evenly is provided with a plurality of barbs.

Preferably, the telescopic section rod comprises a plurality of telescopic rods, and the top end of the telescopic section rod is provided with a threading hole.

Preferably, the buffer ball is made of rubber, the insulating layer is a TPPE layer, and the thickness of the insulating layer is 3-5 mm.

Preferably, the heat insulation layer is made of high-thermal-conductivity carbon fibers.

Preferably, the thicknesses of the thermal insulation layer, the lightning protection layer and the flame retardant layer are all 4-6 mm.

The utility model has the advantages that: the utility model comprises a plurality of telescopic telegraph poles and a cable body arranged on the plurality of telescopic telegraph poles; the cable body comprises a bearing wire core, a heat insulation layer, a lightning protection protective layer and a flame retardant layer which are sequentially arranged, the flame retardant layer is positioned on the outermost side, the bearing wire core comprises a plurality of buffer balls, a cable core and an insulating layer arranged on the outer side of the cable core, and the plurality of buffer balls are uniformly distributed on the surface of the insulating layer; the flexible wire pole is including flexible festival pole, hydraulic press and ground stock, and the hydraulic press is fixed on ground stock top, and the hydraulic press setting still is provided with a hydraulic pedal at the output of hydraulic pedal at hydraulic pedal in the hydraulic press, has solved effectively like this and has had the problem that the aerial [ insulated ] cable can not effectual fire-retardant and lead to causing the conflagration among the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a flame-retardant insulated overhead cable according to the present invention;

fig. 2 is a cross-sectional view of the cable body of the present invention.

In the figure: 1. a cable body; 2. a telescopic telegraph pole; 3. a telescopic joint rod; 4. a hydraulic press; 5. a hydraulic pedal; 6, anchor rod of ground; 7. a wall hole; 8. a barb; 9. carrying the wire core; 10. a cable core; 11. an insulating layer; 12. a buffer ball; a thermal insulation layer; 14. a lightning protection layer; 15. a flame retardant layer; 16. and (6) threading holes.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, a flame-retardant insulated overhead cable includes a plurality of telescopic poles 2 and a cable body 1 disposed on the plurality of telescopic poles 2, wherein the plurality of telescopic poles 2 are responsible for making the cable body 1 overhead;

the cable body 1 comprises a bearing wire core 9 and a heat insulation layer 13, a lightning protection layer 14 and a flame retardant layer 15, wherein the heat insulation layer 13 is arranged from inside to outside, the lightning protection layer 14 and the flame retardant layer 15 are arranged on the outermost side, the bearing wire core 9 comprises a plurality of buffer balls 12, a cable core 10 and an insulating layer 11 arranged on the outer side of the cable core 10, the buffer balls 12 are uniformly distributed on the surface of the insulating layer 11, the insulating layer 11 on the outer side of the cable core 10 is responsible for isolating the inner cable core 10 to prevent the electric conduction from being dangerous, the buffer balls 12 on the outer side of the insulating layer 11 can buffer impact force on the cable body 1 to prevent the cable body 1 from being damaged, the heat insulation layer 13 can isolate temperature to prevent the cable core 10 from being overheated to cause fire, the lightning protection layer 14 prevents the cable body 1 from causing fire due to lightning stroke;

the flexible wire pole 2 is including flexible festival pole 3, hydraulic press 4 and ground stock 6, and hydraulic press 4 is fixed on 6 tops of ground stock, and flexible festival pole 3 sets up at the output of hydraulic press 4, still is provided with a hydraulic pedal 5 on the hydraulic press 4, buries ground stock 6 into the concrete when the flexible wire pole 2 of installation, makes the flexible festival pole 3 of hydraulic press 4 drive can adjust built on stilts height according to different practical environment through stepping on hydraulic pedal 5.

Wherein, earth anchor 6 is cylindricly, has seted up a plurality of wall holes 7 on the earth anchor 6, and the surface of earth anchor 6 evenly is provided with a plurality of barbs 8, and earth anchor 6 is burying the concrete, and inside the concrete can flow into the body of earth anchor 6 through a plurality of wall holes 7, the rethread set up the installation that flexible wire pole 2 can be stable of barb 8 is whole.

Wherein, flexible festival pole 3 includes many root telescopic links, and the through wires hole 16 has been seted up on the top of flexible festival pole 3, adjusts the height of flexible wire pole 2 according to the environment of difference like this and makes somebody a mere figurehead.

The buffer ball 12 is made of rubber, the insulating layer 11 is a TPPE layer, the thickness of the insulating layer 11 is 3-5mm, the heat insulating layer 13 is made of high-thermal-conductivity carbon fibers, and the thicknesses of the heat insulating layer 13, the lightning protection layer 14 and the flame retardant layer 15 are all 4-6mm, so that the cost can be reduced, and the due strength of the cable body 1 can be ensured.

The utility model discloses theory of operation and use flow: when in use, the plurality of telescopic telegraph poles 2 are responsible for making the cable body 1 overhead, the ground anchor pole 6 is buried in concrete, the concrete can flow into the tube body of the ground anchor pole 6 through the plurality of wall holes 7, the telescopic telegraph poles 2 can be stably installed by arranging the barbs 8 integrally, the insulating layer 11 outside the cable core 10 is responsible for isolating the cable core 10 inside to prevent the danger of electric conduction, the plurality of buffer balls 12 outside the insulating layer 11 can buffer the impact force received by the cable body 1 to prevent the cable body 1 from being damaged, the heat insulation layer 13 can isolate the temperature to prevent the cable core 10 from being ignited due to overhigh temperature, the lightning protection layer 14 prevents the cable body 1 from being ignited due to lightning stroke, the flame-retardant layer 15 at the outermost side prevents the cable body 1 from being burned when exposed to fire, the hydraulic press 4 drives the telescopic joint rod 3 to adjust the overhead height according to different practical environments by stepping on the hydraulic pedal 5, the problem that the existing aerial cable cannot be effectively flame-retardant and causes fire disasters in the prior art is effectively solved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A flame-retardant insulated overhead cable is characterized by comprising a plurality of telescopic telegraph poles (2) and cable bodies (1) arranged on the telescopic telegraph poles (2);

the cable comprises a cable body (1) and is characterized in that the cable body comprises a bearing wire core (9), a heat insulation layer (13), a lightning protection layer (14) and a flame retardant layer (15), the heat insulation layer (13), the lightning protection layer and the flame retardant layer (15) are arranged from inside to outside, the flame retardant layer (15) is located on the outermost side, the bearing wire core (9) comprises a plurality of buffer balls (12), a cable core (10) and an insulating layer (11) arranged on the outer side of the cable core (10), and the plurality of buffer balls (12) are uniformly distributed on the surface of the insulating;

the telescopic telegraph pole (2) comprises a telescopic section rod (3), a hydraulic press (4) and a ground anchor rod (6), the hydraulic press (4) is fixed to the top end of the ground anchor rod (6), the telescopic section rod (3) is arranged at the output end of the hydraulic press (4), and a hydraulic pedal (5) is further arranged on the hydraulic press (4).

2. The flame-retardant insulated overhead cable according to claim 1, wherein the ground anchor rod (6) is cylindrical, a plurality of wall holes (7) are formed in the ground anchor rod (6), and a plurality of barbs (8) are uniformly arranged on the outer surface of the ground anchor rod (6).

3. The flame-retardant insulated overhead cable according to claim 1, wherein the telescopic rod (3) comprises a plurality of telescopic rods, and a threading hole (16) is formed at the top end of the telescopic rod (3).

4. The flame-retardant insulated overhead cable according to claim 1, wherein the buffer ball (12) is made of rubber, the insulating layer (11) is a TPPE layer, and the thickness of the insulating layer (11) is 3-5 mm.

5. A flame retardant insulated overhead cable according to claim 1, wherein the thermal insulation layer (13) is made of highly heat conductive carbon fiber.

6. A flame retardant insulated overhead cable according to claim 1, wherein the thickness of the thermal insulation layer (13), the lightning protection layer (14) and the flame retardant layer (15) are 4-6 mm.