CN218886861U

CN218886861U - Combustion B1-level interlocking armored power cable

Info

Publication number: CN218886861U
Application number: CN202222818250.9U
Authority: CN
Inventors: 贺达园; 杨德丰; 毛诚悦; 储程
Original assignee: Jiangsu Huayuan Cable Co ltd
Current assignee: Jiangsu Huayuan Cable Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-04-18
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a burning B1 cascade lock armor power cable relates to power cable technical field, and is lower for solving the power cable overall structure intensity among the prior art, in the use, easily receives the erosion of gnawing of mechanical destruction, animal destruction and environment, leads to power cable to take place to damage easily, is unfavorable for the problem of the stability of power cable use. The cable protection sleeve is characterized in that a chain armor layer is arranged on the outer side of the cable protection sleeve and made of aluminum alloy, a circuit cavity is formed in the cable protection sleeve, an inner support is arranged in the circuit cavity and composed of a center column, a vertical support plate and a transverse support plate, a first flame-retardant layer is arranged in the cable protection sleeve, a heat-insulating layer is connected to the inside of the first flame-retardant layer in a bonding mode through hot melt adhesives, an inner cushion layer is connected to the inside of the heat-insulating layer in a bonding mode through hot melt adhesives, and a wrapping tape layer is connected to the inside of the inner cushion layer in a bonding mode through hot melt adhesives.

Description

Combustion B1-level interlocking armored power cable

Technical Field

The utility model relates to a power cable technical field specifically is a burning B1 cascade lock armor power cable.

Background

The power cable is used for transmitting and distributing electric energy, the power cable is often used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and transmission lines under river-crossing seawater, with the continuous development of the technology, in order to improve the fireproof and flame-retardant capability of the power cable, a fireproof flame-retardant layer is often added in the power cable to form the fireproof flame-retardant power cable, and in order to increase the fireproof performance of the power cable in some environments, the fireproof grade of the power cable is often B1 grade;

for example, an issued patent with publication number CN208507297U (a low voltage power cable with B1 class burning grade): the method comprises the following steps: at least one conductor structure, an inner sheath, an intermediate layer, and an outer sheath; the at least one conductor structure is located inside the inner sheath; the middle layer is positioned between the inner protective layer and the outer protective layer, and the outer protective layer is provided with a flame retardant;

although the cable is prevented from being easily decomposed in a fire by arranging the low-voltage power cable with the combustion grade of B1 in the prior art, the overall structural strength of the cable is low, and the cable is easily damaged by mechanical damage, animal gnawing damage and environmental erosion in the using process of the power cable, so that the power cable is easily damaged and the stability of the power cable is not favorable for use; therefore, the market urgently needs to develop a combustion B1-level interlocking armored power cable to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a burning B1 cascade lock armor power cable to solve the power cable overall structure intensity that provides in the above-mentioned background art lower, in the use, easily receive the erosion of gnawing of mechanical destruction, animal and destroying and environment, lead to power cable to take place easily and damage, be unfavorable for the problem of the stability of power cable use.

In order to achieve the above object, the utility model provides a following technical scheme: the combustion B-level interlocking armored power cable comprises a cable protective sleeve, wherein an interlocking armor layer is arranged on the outer side of the cable protective sleeve and made of aluminum alloy, a circuit cavity is formed in the cable protective sleeve, an inner support is arranged in the circuit cavity and consists of a central column, a vertical support plate and a transverse support plate.

Preferably, the inside of cable protective sheath is provided with first fire-retardant layer, the inside on first fire-retardant layer has the heat insulating layer through hot melt adhesive bonding connection, the inside on heat insulating layer has the inner cushion layer through hot melt adhesive bonding connection, the inside on inner cushion layer has around the band layer through hot melt adhesive bonding connection, there is the fire-retardant layer of second around the inside on band layer through hot melt adhesive bonding connection, the inside on the fire-retardant layer of second has outer insulating layer through hot melt adhesive bonding connection.

Preferably, the first flame-retardant layer is a ceramic silicon rubber fireproof layer, and the second flame-retardant layer is a magnesium hydroxide halogen-free flame-retardant layer.

Preferably, the central column is a rubber column, the vertical support plates are symmetrically arranged above and below the central column, and the transverse support plates are symmetrically arranged along the front end and the rear end of the central column.

Preferably, the interior of the circuit cavity is filled with the twine, the interior of the circuit cavity is provided with the cable, and the interior of the cable is provided with the sheath layer.

Preferably, the sheath layer is connected with an inner insulating layer in an adhering mode through hot melt adhesive, a conductor core is arranged in the inner insulating layer, and a semiconductive shielding layer is arranged between the inner insulating layer and the conductor core.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through chain armor and inner support, wherein chain armor adopts the aluminum alloy to make, can protect power cable from the outside, can prevent that power cable from receiving gnawing of animal in the use and destroying and the erosion of environment, power cable's stability in use has been improved, the setting of inner support simultaneously, wherein the inner support is by the center post, vertical extension board and horizontal extension board are constituteed, can support power cable from the inside, the chain armor of the outside aluminum alloy material of recombination power cable, can prevent that power cable from receiving mechanical destruction, power cable's mechanical strength has been increased, power cable's tensile strength has been strengthened, compressive strength, power cable's life has been improved, be favorable to power cable to carry out stable transmission and distribution electric energy work.

2. The utility model discloses a through set up first fire-retardant layer in the cable protective sheath, thermal-insulated layer and the fire-retardant layer of second, form the fire-retardant layer of two-layer fire prevention, the fire prevention grade that can make power cable reaches B1 level, power cable's fire prevention fire-retardant ability has been improved, wherein, first fire-retardant layer sets up to ceramic silicon rubber flame retardant coating, ceramic silicon rubber can form fire-resistant ceramic layer under high temperature flame, prevent that flame from piercing through, the stability of fire prevention has been improved, the setting on thermal-insulated layer, can obstruct the inside transmission of ambient temperature, thereby can prevent the transmission of flame temperature, prevent that the inside high temperature of power cable, the fire-retardant layer of second sets up to the fire-retardant layer of magnesium hydrate halogen-free, the metallic oxide crust that can produce, the contact of oxygen and organic matter has been prevented has improved the stability of fire prevention, the security that power cable used has been increased.

3. The utility model discloses a through the setting of outer insulating layer and inner insulating layer, all set up the one deck insulating layer in the inside of cable protective sheath and cable, through double-layer insulation's setting, can increase power cable's resistance to electric ability, improved the security that power cable used.

Drawings

Fig. 1 is a schematic view of a combustion B1-stage interlocking armored power cable of the present invention;

fig. 2 is a side sectional view of a combustion B1-stage interlocking armored power cable of the present invention;

fig. 3 is a front view of the inner frame of the present invention;

fig. 4 is an internal cross-sectional view of the cable protective cover of the present invention;

fig. 5 is a cross-sectional view of a cable of the present invention.

In the figure: 1. a cable protective sheath; 11. a first flame retardant layer; 12. a thermal insulation layer; 13. an inner cushion layer; 14. wrapping a belt layer; 15. a second flame retardant layer; 16. an outer insulating layer; 2. interlocking armor layers; 3. a cable; 31. a sheath layer; 32. an inner insulating layer; 33. a semiconductive shield layer; 34. a wire core; 4. a circuit cavity; 5. an inner support; 51. a central column; 52. a vertical support plate; 53. and a transverse support plate.

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.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a burning B1 level interlocking armoured power cable, including cable protection sleeve 1, cable protection sleeve 1's the outside is provided with chain armor 2, chain armor 2 adopts the aluminum alloy to make, chain armor 2 aluminum alloy hose, chain armor 2 can protect power cable from the outside, can prevent that power cable from receiving gnawing of animal and destroying and the erosion of environment in the use, power cable's stability in use has been improved, cable protection sleeve 1's inside is provided with circuit chamber 4, circuit chamber 4's inside is provided with inner support 5, inner support 5 comprises center post 51, vertical extension board 52 and horizontal extension board 53, through the setting of chain armor 2 combination inner support 5, can strengthen and support power cable from outside and inside, can prevent that power cable from receiving mechanical damage, power cable's mechanical strength has been increased, power cable's tensile strength has been strengthened, compressive strength, power cable's life has been improved.

Further, the inside of cable protection sleeve 1 is provided with first fire-retardant layer 11, the inside of first fire-retardant layer 11 has temperature insulating layer 12 through hot melt adhesive bonding connection, the setting of temperature insulating layer 12, can the inside transmission of separation ambient temperature, thereby can prevent the transmission of flame temperature, prevent that the inside high temperature of power cable, the inside of temperature insulating layer 12 has inner cushion layer 13 through hot melt adhesive bonding connection, inner cushion layer 13's inside has wrap band layer 14 through hot melt adhesive bonding connection, wrap band layer 14's inside has second fire-retardant layer 15 through hot melt adhesive bonding connection, the setting of first fire-retardant layer 11 and second fire-retardant layer 15, form two-layer fire prevention fire-retardant layer, can make power cable's fire-retardant grade reach B1, power cable's fire resistance is improved, the inside of second fire-retardant layer 15 has outer insulation layer 16 through hot melt adhesive bonding connection, power cable's resistance has been improved, the security that power cable used has been increased.

Further, first fire-retardant layer 11 sets up to ceramic silicon rubber flame retardant coating, and ceramic silicon rubber can form fire-resistant ceramic layer under high temperature flame, prevents that flame from penetrating through, has improved the stability of preventing fires, and second fire-retardant layer 15 sets up to the halogen-free fire-retardant layer of magnesium hydrate, and the metal oxide that can produce encrusts, has prevented that oxygen and organic matter contact has improved the stability of preventing fires, has increased the security that power cable used.

Further, the central column 51 is arranged to be a rubber column, so that the central column 51 can be bent, the vertical support plates 52 are symmetrically arranged above and below the central column 51, the horizontal support plates 53 are symmetrically arranged at the front end and the rear end of the central column 51, and the vertical support plates 52 and the horizontal support plates 53 are uniformly arranged at intervals along the central column 51, so that the power cable can be bent, and the use convenience of the power cable is improved.

Further, the inside packing in circuit chamber 4 has the linen thread, can fill circuit chamber 4, the compactness of cable 3 in circuit chamber 4 has been increased, it shakes and produces the friction to prevent that cable 3 from taking place, the inside in circuit chamber 4 is provided with cable 3, the inside of cable 3 is provided with restrictive coating 31, there is inner insulating layer 32 in restrictive coating 31's inside through hot melt adhesive bonding connection, power cable's resistance to electricity ability has been improved, the security that power cable used has been increased, inner insulating layer 32's inside is provided with wire core 34, be provided with semi-conductive shielding layer 33 between inner insulating layer 32 and the wire core 34, semi-conductive shielding layer 33 can be equipotential with wire core 34, eliminate the air gap on wire core 34 surface, improve resistant partial discharge, branch's ability, thereby avoided taking place partial discharge between wire core 34 and the inner insulating layer 32, the security that power cable used has been improved.

The working principle is as follows: during the use, through the effect of chain armor 2, wherein chain armor 2 adopts the aluminum alloy to make, can protect power cable from the outside, can prevent that power cable from receiving the attack of gnawing destruction and the environment of animal in the use, power cable's stability in use has been improved, combine the effect of inner support 5 simultaneously, wherein inner support 5 comprises center post 51, vertical extension board 52 and horizontal extension board 53, can support power cable from the inside, can prevent that power cable from receiving mechanical damage, power cable's mechanical strength has been increased, power cable's tensile strength, compressive strength has been strengthened, power cable's life has been improved, be favorable to power cable to carry out stable transmission and distribution electric energy work, and through the effect of first fire-retardant layer 11 and second fire-retardant layer 15, form two-layer fire prevention flame retardant layer, can make power cable's fire-retardant rating reach B1 level, power cable's fire-retardant ability has been improved, rethread outer insulating layer 16 and inner insulating layer 32's effect, set up double-layer in power cable, power cable's resistance can be increased, power cable's security of using has been improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a burning B1 level interlocking armor power cable, includes cable protective sheath (1), its characterized in that: the cable protection sleeve is characterized in that a chain armor layer (2) is arranged on the outer side of the cable protection sleeve (1), the chain armor layer (2) is made of aluminum alloy, a circuit cavity (4) is arranged inside the cable protection sleeve (1), an inner support (5) is arranged inside the circuit cavity (4), and the inner support (5) is composed of a center column (51), a vertical support plate (52) and a transverse support plate (53).

2. The combustion B1-staged interlocked armored power cable of claim 1, wherein: the utility model discloses a cable protection cover, including cable protective sheath (1), the inside of first fire-retardant layer (11) is provided with first fire-retardant layer (11), the inside of first fire-retardant layer (11) has thermal-insulated layer (12) through hot melt adhesive bonding connection, the inside of thermal-insulated layer (12) has inner cushion layer (13) through hot melt adhesive bonding connection, the inside of inner cushion layer (13) has around band layer (14) through hot melt adhesive bonding connection, there is second fire-retardant layer (15) through hot melt adhesive bonding connection in the inside of around band layer (14), the inside of second fire-retardant layer (15) has outer insulating layer (16) through hot melt adhesive bonding connection.

3. The combustion B1-staged interlocked armored power cable of claim 2, wherein: the first flame-retardant layer (11) is a ceramic silicon rubber fireproof layer, and the second flame-retardant layer (15) is a magnesium hydroxide halogen-free flame-retardant layer.

4. The combustion B1-staged interlocked armored power cable of claim 1, wherein: the central column (51) is a rubber column, the vertical support plates (52) are symmetrically arranged above and below the central column (51), and the transverse support plates (53) are symmetrically arranged along the front end and the rear end of the central column (51).

5. The combustion B1-staged interlocked armored power cable of claim 1, wherein: the interior of the circuit cavity (4) is filled with the twine, the interior of the circuit cavity (4) is provided with the cable (3), and the interior of the cable (3) is provided with the sheath layer (31).

6. The combustion B1-staged lock armored power cable of claim 5, wherein: the inside of restrictive coating (31) is connected with inner insulating layer (32) through hot melt adhesive bonding, the inside of inner insulating layer (32) is provided with wire core (34), be provided with semiconductive shield layer (33) between inner insulating layer (32) and wire core (34).