CN217982890U

CN217982890U - 0.6/1kV flexible B1-level composite tensile cable

Info

Publication number: CN217982890U
Application number: CN202221998731.6U
Authority: CN
Inventors: 金霞; 王秀字; 徐忠甫
Original assignee: Shanghai Yeshen Technology Co ltd
Current assignee: Shanghai Yeshen Technology Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-06
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to a 0.6/1kV flexible B1 level composite tensile cable relates to wire and cable technical field. The utility model discloses an elastic silica gel layer, waterproof layer and cable core, elastic silica gel layer inner wall bonding is fixed with the fire prevention sponge layer, and the inboard bonding of elastic silica gel layer is fixed with the waterproof layer, and the waterproof layer inboard is fixed with the cable core. The utility model discloses an elastic silica gel layer, water proof coating and cable core, solved current 0.6/1kV flexible B level cable when in actual use, receive external environment's influence, the oversheath is ageing to drop even easily, reduce protecting effect, and the oversheath of cable, filling layer, inner core etc. closely meet or twine, when receiving the pulling force in the cable outside, its each structure can receive certain pulling force equally, there may be the problem that the fracture of partial structure leads to protecting effect to descend.

Description

0.6/1kV flexible B1-level composite tensile cable

Technical Field

The utility model relates to a wire and cable technical field especially relates to a flexible B1 level composite tensile cable of 0.6/1 kV.

Background

The electric wire and cable is a wire product used for transmitting electric energy, information and realizing electromagnetic energy conversion, and is widely applied in daily life, the structural elements of the electric wire and cable product can be generally divided into four main structural components of a conducting wire, an insulating layer, a shielding layer and a sheath layer, a filling element and a tensile element, the electric wire and cable can be divided into A, B, C three levels according to the flame retardant grade, wherein the electric wire and cable used in stations, subways, markets, high-rise buildings and other places mostly adopt B-level flame retardant cables, especially B1-level flame retardant cables, and the low-voltage cable represents all plastic insulation type electric power cables of 0.6/1kV level, but the low-voltage cable still has the following defects in actual use:

1. the conventional B1-grade flexible fireproof cable has the advantages that the flexibility of the cable is guaranteed, the fireproof capacity of the cable is effectively improved, but in the actual use process, particularly in severe environments such as summer with high temperature and much rain, the cable is used in high-temperature, insolation or humid environments for a long time, an outer sheath of the cable is easy to age or even fall off, and the protective effect of the cable is greatly reduced;

2. although the existing 0.6/1kV flexible B1-level cable has a certain tensile effect, because the outer sheath, the filling layer, the inner core and the like of the cable are tightly connected or wound, when the outer side of the cable is subjected to a large tensile force, all structures of the cable can be subjected to a certain tensile force, the structures such as the outer sheath and the like are easily broken under an unexpected condition, the protection effect is reduced, and even the cable cannot be used due to the breakage of the inner core.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 0.6/1kV flexible B1 level composite tensile cable, through the elastic silica gel layer, water proof coating and cable core, solved current 0.6/1kV flexible B1 level cable when in-service use, receive external environment's influence, the oversheath is ageing even drops easily, reduce the protecting effect, and the oversheath of cable, the filling layer, the inner core etc. closely meet or twine, when receiving the pulling force in the cable outside, its each structure can receive certain pulling force equally, there may be the fracture of partial structure and lead to the problem that the protecting effect descends.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model relates to a 0.6/1kV flexible B1 level composite tensile cable, including elastic silica gel layer, waterproof layer and cable core, elastic silica gel layer inner wall bonds and is fixed with the fireproof sponge layer, can play thermal-insulated heat preservation, shockproof effect etc. through the fireproof sponge layer, can reduce the injury that adverse circumstances caused the cable oversheath, especially in high temperature moist summer, the fireproof sponge has good hydroscopicity, can dispel the heat with moisture evaporation when high temperature, and further reduce high temperature right the utility model discloses cause irreversible injury, elastic silica gel layer and fireproof sponge layer do not laminate in the waterproof layer outer wall, further play the thermal-insulated effect of heat preservation through the gap between fireproof sponge layer and the waterproof layer, and be in the utility model discloses a when the outside receives to be dragged, elastic silica gel layer and fireproof sponge layer can not play great pulling force to inboard waterproof layer and cable core dragging deformation, greatly reduced each structure of cable appear the probability of fracture damage in dragging, the elastic silica gel layer inboard is located the waterproof layer that the waterproof layer is provided with the waterproof layer, can avoid the shielding layer and the cable core to go on the shielding layer and the shielding layer, and the shielding layer is damaged through the outside electromagnetic information that can be carried out the shielding layer, has the influence each other shielding layer, and the shielding layer, has the influence of preventing the transmission of the electromagnetic shielding layer.

Furthermore, a through hole is formed in the outer peripheral surface of the elastic silica gel layer in a penetrating mode, a fireproof sponge block is fixed to the outer peripheral surface of the fireproof sponge layer, and the fireproof sponge block is fixedly bonded to the inner side of the through hole;

can make the bonding of elastic silica gel layer be fixed in the waterproof layer outer peripheral face through spaced viscose layer, avoid droing of elastic silica gel layer the utility model discloses when receiving great pulling force, the pulling force only acts on the elastic silica gel layer outside usually, makes it drag the deformation to kick-back to the original state after not receiving the pulling force, can not produce great pulling force simultaneously to waterproof layer and cable core, improve greatly the utility model discloses a pull resistance, and elastic silica gel layer have certain shock attenuation effect, reduce the influence that vibrations caused the cable core.

Furthermore, an adhesive layer is bonded on the inner wall of the fireproof sponge layer, and the adhesive layer is bonded and fixed on the outer peripheral surface of the waterproof protective layer;

fireproof sponge layer and fireproof sponge piece have the effect of fire prevention, heat preservation and thermal insulation, and it is right to reduce external high temperature the utility model discloses the irreversible damage that the inboard caused, in the summer of the rainy of high temperature, the fireproof sponge piece can absorb a small amount of rainwater or vapor when raining or air humidity is higher to the evaporation through moisture dispels the heat when the high temperature insolate.

Furthermore, a shielding layer is fixedly bonded on the inner wall of the waterproof protective layer, a fireproof protective layer is fixedly bonded on the inner wall of the shielding layer, and the fireproof sponge layer is positioned outside the waterproof protective layer;

the shielding layer is the metal mesh grid, can carry out the electromagnetic shield to the external world, avoids external signal to cause the influence to the transmission of signal, can carry out water proof protection to the shielding layer outside through water proof layer, avoids weing the damage that leads to shielding layer and cable core, can further play the fire protection effect through fire proof layer, improves the protecting effect, has certain gap between water proof layer and the fire prevention sponge layer, can further insulate against heat, the extension through the air the utility model discloses a life.

Furthermore, a filling layer is fixedly bonded on the inner side of the fireproof protection layer, an insulating layer is fixedly bonded on the inner side of the filling layer, and the cable core is fixedly bonded on the inner side of the insulating layer;

contact between many cable cores can be avoided through the insulating layer, the accident of avoiding appearing leads to the short circuit, can fill the fire protection layer inboard through the filling layer, avoids the friction collision between many cable cores.

The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:

1. the utility model discloses a set up the elastic silica gel layer, the effectual fire-retardant ability that improves the cable when guaranteeing the pliability of cable has been solved current B1 level flexible fireproof cable, but in the in-service use, especially in comparatively abominable environment, summer like high temperature rainy, the cable is long-time at high temperature, use in insolate or moist environment, its outer sheath is ageing easily or even drops, lead to its protective effect greatly reduced's problem, the fire prevention sponge layer has the fire prevention, thermal-insulated function, can play thermal-insulated heat preservation effect, reduce the ageing speed of oversheath, and there is certain gap between fire prevention protective layer and the fire prevention sponge layer, can further play thermal-insulated effect through the air, when rainy or air is moist, the erosion of most rainwater can be avoided on the elastic silica gel layer, the fire prevention sponge piece can absorb a small amount of rainwater or vapor, and can evaporate when high temperature or insolate, play the cooling effect.

2. The utility model discloses a set up the elastic silica gel layer, solved the flexible B1 level cable of current 0.6/1kV and had certain tensile effect, nevertheless because the oversheath of cable, the filling layer, the inner core etc. closely meets or twines, when receiving great pulling force in the cable outside, each structure of cable equally can receive certain pulling force, lead to the fracture of oversheath isotructure easily under unexpected situation, reduce the protection effect, the fracture of inner core leads to the unable problem that uses of cable even, the viscose layer is the interval setting, make the elastic silica gel layer under the prerequisite that can not drop, work as the utility model discloses when the outside receives great pulling force, the pulling force only can make the elastic silica gel layer produce deformation, and can not lead to great influence to waterproof layer and cable core, avoid appearing dragging the fracture of structure and lead to the protecting effect to descend.

Drawings

FIG. 1 is a schematic structural view of a 0.6/1kV flexible B1-level composite tensile cable of the present invention;

FIG. 2 is a structural effect diagram of the flexible B1-level composite tensile cable of the utility model of 0.6/1 kV;

FIG. 3 is a structural diagram of the elastic silica gel layer of the present invention;

FIG. 4 is a structural diagram of the waterproof layer of the present invention;

fig. 5 is a structural diagram of the cable core of the present invention.

In the attached drawings, 1, an elastic silica gel layer; 101. a fireproof sponge layer; 102. a through hole; 103. an adhesive layer; 104. a fireproof sponge block; 2. a waterproof protective layer; 201. a shielding layer; 202. a fire protection layer; 3. a cable core; 301. a filling layer; 302. an insulating layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. However, it should be noted that the numerous details set forth in the description are merely intended to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.

Referring to fig. 1-5, the utility model relates to a 0.6/1kV flexible B1-level composite tensile cable, which comprises an elastic silica gel layer 1, a waterproof protective layer 2 and a cable core 3, wherein a fireproof sponge layer 101 is fixed on the inner wall of the elastic silica gel layer 1, the fireproof sponge layer 101 can play the roles of heat insulation, shock resistance and the like, the damage of severe environment to the cable outer sheath can be reduced, especially in summer with high temperature and humidity, the fireproof sponge has good water absorption, the water evaporation can be performed for heat dissipation at high temperature, the irreversible damage to the utility model caused by high temperature can be further reduced, the elastic silica gel layer 1 and the fireproof sponge layer 101 are not adhered to the outer wall of the waterproof protective layer 2, and the gap between the fireproof sponge layer 101 and the waterproof protective layer 2 can further play the roles of heat insulation and heat preservation, and is in the utility model discloses a when the outside receives to drag, elastic silica gel layer 1 and fireproof sponge layer 101 are dragging the deformation can not play great pulling force to inboard waterproof layer 2 and cable core 3, the probability that fracture damage appears in the dragging in each structure of greatly reduced cable, 1 inboard of elastic silica gel layer is located fireproof sponge layer 101 and is provided with waterproof layer 2, can waterproof the shielding layer 201 outside through waterproof layer 2, avoid the damage of weing of shielding layer 201 and cable core 3, can shield external electromagnetism etc. through shielding layer 201, avoid transmission such as information to receive the influence, 2 inboard of waterproof layer is fixed with cable core 3, can avoid the mutual influence between many cable cores 3 through insulating layer 302.

As shown in fig. 1-3, a through hole 102 is formed through the outer peripheral surface of the elastic silica gel layer 1, a fireproof sponge block 104 is fixed on the outer peripheral surface of the fireproof sponge layer 101, the fireproof sponge block 104 is fixed on the inner side of the through hole 102 in an adhering manner, an adhesive layer 103 is adhered on the inner wall of the fireproof sponge layer 101, and the adhesive layer 103 is fixed on the outer peripheral surface of the waterproof protective layer 2 in an adhering manner;

can make 1 bonding of elastic silica gel layer be fixed in the 2 outer peripheral faces of waterproof layer through spaced viscose layer 103, avoid droing of elastic silica gel layer 1, the utility model discloses when receiving great pulling force, the pulling force only acts on the 1 outside of elastic silica gel layer usually, make it drag the deformation, and kick-back to the original state after not receiving the pulling force, can not produce great pulling force to waterproof layer 2 and cable core 3 simultaneously, and elastic silica gel layer 1 has certain shock attenuation effect, reduce the influence that vibrations led to the fact cable core 3, fireproof sponge layer 101 and fireproof sponge piece 104 have the fire prevention, heat-insulating effect keeps warm, it is right to reduce external high temperature the utility model discloses the irreversible damage that the inboard caused, in the summer of high temperature and rainy, when raining or air humidity is higher, fireproof sponge piece 104 can absorb a small amount of rainwater or vapor to the evaporation through moisture is exposed to the heat when high temperature is shone.

As shown in fig. 1, 2 and 4, a shielding layer 201 is fixedly bonded to the inner wall of the waterproof protective layer 2, a fireproof protective layer 202 is fixedly bonded to the inner wall of the shielding layer 201, and the fireproof sponge layer 101 is located outside the waterproof protective layer 2;

shielding layer 201 is the metal mesh grid, can carry out electromagnetic shield to the external world, avoid external signal to cause the influence to the transmission of signal, can carry out water proof through water proof coating 2 to the shielding layer 201 outside, avoid weing the damage that leads to shielding layer 201 and cable core 3, can further play the fire protection effect through fire proof coating 202, there is certain gap between water proof coating 2 and the fire prevention sponge layer 101, can further insulate against heat through the air.

As shown in fig. 1, 2 and 5, a filling layer 301 is fixedly bonded inside the fireproof protection layer 202, an insulating layer 302 is fixedly bonded inside the filling layer 301, and the cable core 3 is fixedly bonded inside the insulating layer 302;

contact between many cable cores 3 can be avoided through insulating layer 302, avoids appearing unexpected and leads to the short circuit, can fill fire protection layer 202 inboard through filling layer 301, avoids the friction collision between many cable cores 3 and insulating layer 302.

One specific application of this embodiment is: after the utility model is installed, the anti-seismic effect of the utility model can be improved through the elastic silica gel layer 1 and the fireproof sponge layer 101, the fireproof sponge layer 101 and the fireproof sponge block 104 have the characteristics of fire prevention, heat insulation and heat preservation, the influence of the external temperature environment on the inner side of the utility model can be reduced, the aging of the outer sheath caused by the high temperature exposure and other environments in the last time can be avoided, meanwhile, a certain gap is formed between the fireproof sponge layer 101 and the waterproof protective layer 2, so that the heat insulation effect can be further achieved through air, the long-term protection effect of the waterproof protective layer 2 on the cable core 3 is ensured, the outer side of the shielding layer 201 can be protected by the waterproof layer 2, the damage of the shielding layer 201 and the cable core 3 caused by moisture is avoided, the shielding layer 201 is a metal mesh grid, electromagnetic shielding can be carried out on the outside, the influence of external signals on the transmission of signals is avoided, the fireproof effect of the utility model can be further improved by the fireproof protective layer 202, the insulating layer 302 can avoid the contact among a plurality of cable cores 3, the short circuit caused by accidents is avoided, the inner side of the fireproof protective layer 202 can be filled through the filling layer 301, so that the friction and collision among a plurality of cable cores 3 are avoided, the service lives of the cable cores 3 and the insulating layer 302 are prolonged, the elastic silica gel layer 1 can be adhered and fixed on the outer peripheral surface of the waterproof protective layer 2 through the spaced adhesive layers 103, the falling-off of the elastic silica gel layer 1 is avoided, when the outer side of the utility model is subjected to larger pulling force, the pulling force is usually only acted on the outer side of the elastic silica gel layer 1 to cause the elastic silica gel layer to be pulled and deformed, and kick-back to the original state after not receiving the pulling force to can not produce great pulling force simultaneously to waterproof layer 2 and cable core 3, improve greatly the utility model discloses a pull resistance avoids inner structure's fracture to lead to the decline of protecting effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a 0.6/1kV flexible B1 level composite tensile cable, includes elastic silica gel layer (1), waterproof layer (2) and cable core (3), its characterized in that: the inner wall of the elastic silica gel layer (1) is fixedly bonded with a fireproof sponge layer (101), the inner side of the elastic silica gel layer (1) is located in the fireproof sponge layer (101) and is provided with a waterproof protective layer (2), and the inner side of the waterproof protective layer (2) is fixedly provided with a cable core (3).

2. The 0.6/1kV flexible B1-level composite tensile cable according to claim 1, wherein a through hole (102) penetrates through the outer peripheral surface of the elastic silica gel layer (1), a fireproof sponge block (104) is fixed on the outer peripheral surface of the fireproof sponge layer (101), and the fireproof sponge block (104) is fixed on the inner side of the through hole (102) in an adhering manner.

3. The flexible B1-level composite tensile cable of 0.6/1kV according to claim 1, wherein an adhesive layer (103) is bonded on the inner wall of the fireproof sponge layer (101), and the adhesive layer (103) is bonded and fixed on the outer peripheral surface of the waterproof protective layer (2).

4. The 0.6/1kV flexible B1-level composite tensile cable according to claim 1, wherein a shielding layer (201) is fixedly bonded on the inner wall of the waterproof protective layer (2), a fireproof protective layer (202) is fixedly bonded on the inner wall of the shielding layer (201), and the fireproof sponge layer (101) is positioned outside the waterproof protective layer (2).

5. The flexible B1-grade composite tensile cable of 0.6/1kV according to claim 4, wherein a filling layer (301) is bonded and fixed on the inner side of the fireproof protective layer (202), an insulating layer (302) is bonded and fixed on the inner side of the filling layer (301), and the cable core (3) is bonded and fixed on the inner side of the insulating layer (302).