CN217902759U

CN217902759U - High-strength moisture-proof fireproof power cable

Info

Publication number: CN217902759U
Application number: CN202221500486.1U
Authority: CN
Inventors: 耿琪琪; 胡炳光; 袁振瑞; 黄勇彪; 陈存利
Original assignee: Yantong Cable Co ltd
Current assignee: Yantong Cable Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-11-25
Anticipated expiration: 2032-06-15

Abstract

The utility model belongs to the technical field of the cable technique and specifically relates to a high-strength dampproofing fire prevention power cable, including support and cable core, the inside of support is provided with a plurality of groups of insulated columns, insulated column and insulating cover butt, be provided with the strengthening rib in the support, be provided with a plurality of groups of recesses that cooperate with the insulated column on the strengthening rib, the outside of support is provided with the insulating layer, the outside of shielding layer is provided with around the covering, the outside of insulating layer is provided with the waterproof layer, through setting up strengthening rib and support increase cable's intensity, the insulated column on the support inserts in the recess of strengthening rib when the cable is bent, makes the skew angle of support limited, avoids the bending angle of cable too big to lead to the fracture; avoid the cable to influence the power supply in the scene of a fire burning through setting up fire-retardant layer, prevent the inside intaking of cable through setting up the waterproof layer and around the covering to avoid damping of cable through setting up filling chamber and drier.

Description

High-strength moisture-proof fireproof power cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a dampproofing fire prevention power cable excels in.

Background

The power cable is an electric energy or signal transmission device, usually by several or several groups of wire (every group is at least two) stranded cable of similar rope that forms, between every group wire insulating each other, and often round a center and turn round, whole outside is wrapped up and is had highly insulating overburden, the cable has interior circular telegram, the characteristics of external insulation, current power cable fire proofness is relatively poor, easy burning when being in the scene of a fire, influence the scene of a fire power supply, increase the rescue degree of difficulty, and because cable self intensity is not enough, the easy fracture falls to injure people under the high temperature, increase the danger in the scene of a fire.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving current power cable fire proofness relatively poor, easy burning when being in the scene of a fire influences the power supply in the scene of a fire, increases the rescue degree of difficulty to because cable self intensity is not enough, the easy fracture of high temperature is dropped and is hindered the people down, increases the shortcoming such as danger in the scene of a fire, and the dampproofing fire prevention power cable that excels in of proposing.

In order to realize the purpose, the utility model adopts the following technical scheme:

the design is a high-strength moistureproof fireproof power cable, which comprises a support and a cable core, wherein an insulating sleeve is arranged outside the cable core, a plurality of groups of isolating columns are arranged inside the support, the isolating columns are abutted to the insulating sleeve, reinforcing ribs are arranged in the support, silicon rubber blocks are filled in the support, a plurality of groups of grooves matched with the isolating columns are formed in the reinforcing ribs, an insulating layer is arranged outside the support, a shielding layer is inlaid on the outer wall of the insulating layer, a winding layer is arranged outside the shielding layer, a heat insulation layer is arranged outside the winding layer, a waterproof layer is arranged outside the heat insulation layer, an armor layer is arranged outside the waterproof layer, a flame-retardant layer is arranged outside the armor layer, and a wear-resistant layer is arranged outside the flame-retardant layer.

Preferably, the insulating sleeve and the insulating layer are both irradiation cross-linked polyolefin, and the shielding layer is a double-layer copper wire braid layer.

Preferably, the wrapping layer is a waterproof adhesive tape winding layer, a plurality of groups of filling cavities are arranged in the heat insulation layer, and drying agents are filled in the filling cavities.

Preferably, the waterproof layer is a composite layer of a double-sided water-blocking tape and water-blocking powder, and the armor layer is of a West-Lu type steel wire rope armor structure.

Preferably, the flame-retardant layer flame-retardant fire-resistant mica tape is wrapped to form a layer, and the wear-resistant layer is a PE layer.

The utility model provides a pair of dampproofing fire prevention power cable excels in, its beneficial effect lies in: the strength of the cable is increased by arranging the reinforcing ribs and the support, and the isolating columns on the support are inserted into the grooves of the reinforcing ribs when the cable is bent, so that the offset angle of the support is limited, and the cable is prevented from being broken due to overlarge bending angle; avoid the cable to influence the power supply in the scene of a fire burning through setting up fire-retardant layer, prevent the inside intaking of cable through setting up the waterproof layer and around the covering to avoid the damping of cable through setting up filling chamber and drier.

Drawings

Fig. 1 is the utility model provides a dampproofing fire prevention power cable structure sketch map of excelling in.

In the figure: 1. a support; 2. a cable core; 3. an insulating sleeve; 4. an isolation column; 5. reinforcing ribs; 6. a groove; 7. an insulating layer; 8. a shielding layer; 9. wrapping a covering; 10. a thermal insulation layer; 11. a waterproof layer; 12. an armor layer; 13. a flame retardant layer; 14. a wear layer; 15. the cavity is filled.

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, a high-strength moistureproof fireproof power cable comprises a support 1 and a cable core 2, wherein an insulating sleeve 3 is arranged outside the cable core 2, a plurality of groups of isolating columns 4 are arranged inside the support 1, the isolating columns 4 are abutted against the insulating sleeve 3, a reinforcing rib 5 is arranged inside the support 1, a silicon rubber block is filled in the support 1, a plurality of groups of grooves 6 matched with the isolating columns 4 are arranged on the reinforcing rib 5, an insulating layer 7 is arranged outside the support 1, a shielding layer 8 is embedded on the outer wall of the insulating layer 7, a wrapping layer 9 is arranged outside the shielding layer 8, a heat-insulating layer 10 is arranged outside the wrapping layer 9, the outside of insulating layer 10 is provided with waterproof layer 11, the outside of waterproof layer 11 is provided with armor 12, the outside of armor 12 is provided with fire-retardant layer 13, the outside of fire-retardant layer 13 is provided with wearing layer 14, through setting up the intensity that strengthening rib 5 and support 1 increase the cable, in the separation post 4 on the support 1 inserts the recess 6 of strengthening rib 5 when the cable is bent, make the skew angle of support 1 limited, avoid the too big fracture that leads to of angle of bending of cable, avoid the cable to influence the power supply in the scene of a fire burning through setting up fire-retardant layer 13, through setting up waterproof layer 11 and preventing the inside intaking of cable around covering 9.

Insulating cover 3 and insulating layer 7 are irradiation crosslinked polyolefin, and shielding layer 8 is double-deck copper wire weaving layer.

For waterproof sticky tape winding layer around covering 9, the inside of insulating layer 10 is provided with a plurality of groups and fills chamber 15, fills and is filled with the drier in chamber 15, avoids weing of cable through setting up filling chamber 15 and drier.

The waterproof layer 11 is a composite layer of a double-sided water-blocking tape and water-blocking powder, and the armor layer 12 is of a West-Lu type steel wire rope armor structure.

The flame-retardant layer 13 is a layer formed by wrapping a flame-retardant fire-resistant mica tape, and the wear-resistant layer 14 is a PE layer.

The utility model discloses, through setting up the intensity that strengthening rib 5 and support 1 increase the cable during use, when the cable is bent in the recess 6 of strengthening rib 5 is inserted to the insulated column 4 on the support 1, make the skew angle of support 1 limited, avoid the too big fracture that leads to of angle of bending of cable, avoid the cable to influence the power supply in the scene of a fire burning through setting up fire-retardant layer 13, prevent the inside intaking of cable through setting up waterproof layer 11 and around covering 9, avoid the moisture of cable through setting up packing chamber 15 and drier.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high-strength dampproofing fireproof power cable, includes support (1) and cable core (2), its characterized in that, the outside of cable core (2) is provided with insulating cover (3), the inside of support (1) is provided with a plurality of groups insulated column (4), insulated column (4) and insulating cover (3) butt, be provided with strengthening rib (5) in support (1), support (1) intussuseption is filled with the silicon rubber piece, be provided with a plurality of groups and insulated column (4) matched with recess (6) on strengthening rib (5), the outside of support (1) is provided with insulating layer (7), the outer wall of insulating layer (7) is inlayed and is had shielding layer (8), the outside of shielding layer (8) is provided with around covering (9), be provided with insulating layer (10) around the outside of covering (9), the outside of insulating layer (10) is provided with waterproof layer (11), the outside of waterproof layer (11) is provided with armor (12), the outside of armor (12) is provided with fire-retardant layer (13), the outside of fire-retardant layer (13) is provided with wearing layer (14).

2. A high-strength moisture-proof fire-proof power cable as claimed in claim 1, wherein the insulating sheath (3) and the insulating layer (7) are both radiation cross-linked polyolefin, and the shielding layer (8) is a double-layer copper wire braided layer.

3. The high-strength moisture-proof fireproof power cable according to claim 1, wherein the wrapping layer (9) is a waterproof adhesive tape winding layer, a plurality of groups of filling cavities (15) are arranged inside the heat insulation layer (10), and drying agents are filled in the filling cavities (15).

4. A high strength moisture-proof fire-proof power cable according to claim 1, wherein the waterproof layer (11) is a composite layer of a double-sided water-blocking tape and water-blocking powder, and the armor layer (12) is a steel wire rope armor structure of west-lu type.

5. A high-strength moisture-proof fireproof power cable according to claim 1, wherein the flame-retardant layer (13) is a layer formed by wrapping a flame-retardant and fire-resistant mica tape, and the wear-resistant layer (14) is a PE layer.