CN220856174U - Cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable - Google Patents

Abstract

The utility model discloses a cold-resistant fire-resistant halogen-free low-smoke control composite multi-core cable, which belongs to the technical field of cables and comprises a plurality of groups of protective layers and cable cores, wherein clearance grooves are formed between the protective layers and the plurality of groups of cable cores, a filling layer is filled in the clearance grooves, each group of cable cores consists of a conductor, an insulating layer and a sheath, the conductors, the insulating layer and the sheath are sequentially overlapped and sleeved from inside to outside, four groups of dislocation preventing bulges are arranged on the outer side of the sheath in a surrounding manner at intervals in the circumferential direction, the corners of the dislocation preventing bulges are arranged in an arc shape, and the protective layers consist of a waterproof cold-resistant layer and a fire-resistant layer.

Description

Cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable

Technical Field

The utility model relates to the technical field of wires and cables, in particular to a cold-resistant fire-resistant halogen-free low-smoke control composite multi-core cable.

Background

The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river, and in the power lines, the proportion of the cable is gradually increasing. The power cable is a cable product used for transmitting and distributing high-power electric energy in a main line of the power system, and the existing multi-core cable is characterized in that a plurality of cable cores are directly arranged in a cable protection layer when in use, so that the cable cores in the cable are easy to rub and misplace in the use process, the core bodies are damaged, and the subsequent use of the cable is affected.

Disclosure of utility model

The utility model aims to provide a cold-resistant fire-resistant halogen-free low-smoke control composite multi-core cable, which solves the problems that in the prior multi-core cable, a plurality of wire cores are put together to be directly arranged in a cable protection layer in use, so that the cable cores in the cable are easy to rub and misplace in the use process, the core body is damaged, and the subsequent use of the cable is affected.

The utility model provides a cold-resistant fire-resistant halogen-free low-smoke control composite multi-core cable, which comprises a protective layer and a cable core body, wherein a plurality of groups of cable cores are arranged on the cable core body, a plurality of groups of cable cores are sleeved by the protective layer, a clearance groove is formed between the protective layer and the plurality of groups of cable cores, a filling layer is filled on the clearance groove, each group of cable cores consists of a conductor, an insulating layer and a sheath, the conductors, the insulating layer and the sheath are sequentially overlapped and sleeved from inside to outside, four groups of dislocation-resistant bulges are arranged on the outer side of the sheath, the four groups of dislocation-resistant bulges are circumferentially arranged on the outer side of the sheath at intervals, corners of the dislocation-resistant bulges are arranged in an arc shape, the protective layer consists of a waterproof cold-resistant layer and a fire-resistant layer, the waterproof layer is sleeved on the outer side of the fire-resistant layer, the conductor is made of a tin-plated copper conductor, the insulating layer is made of a cross-linked polyolefin insulator material, the sheath layer is made of a TPU elastomer material, the fire-resistant layer is made of a phenolic FRP (also called a second-generation phenolic resin) material, and the waterproof plastic composite belt is made of the waterproof layer.

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

According to the application, the fire-resistant layer and the waterproof cold-resistant layer are arranged, the fire-resistant layer is made of phenolic FRP (also called second generation phenolic resin) materials, and the waterproof cold-resistant layer is made of an aluminum-plastic clad composite tape, so that the waterproof and fire-resistant layers of the whole cable are greatly improved, the inner cores are prevented from being rubbed with each other due to rolling dislocation by arranging four groups of dislocation prevention protrusions on the outer side of the sheath, and the corners of the dislocation prevention protrusions are arranged into circular arcs to prevent the outer protective layer from being scratched.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic diagram of a part of the present utility model;

fig. 3 is a schematic diagram of a partial structure of the present utility model.

Reference numerals: the cable comprises a protective layer 1, a cable core 2, a filling layer 3, a conductor 4, an insulating layer 5, a sheath 6, dislocation preventing protrusions 7, a waterproof cold-resistant layer 8 and a fire-resistant layer 9.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or first relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or first relationships based on the drawings, are merely for convenience of description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be connected with each other or indirectly through an intermediate medium, and can be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment of the utility model provides a cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable, which is shown in the following figures 1 to 3, and comprises a protective layer 1 and a cable core 2, wherein the cable core 2 is provided with a plurality of groups, the protective layer 1 carries out sleeving operation on the plurality of groups of cable cores 2, a clearance groove is formed between the protective layer 1 and the plurality of groups of cable cores 2, a filling layer 3 is filled on the clearance groove, each group of cable cores 2 consists of a conductor 4, an insulating layer 5 and a sheath 6, the conductor 4, the insulating layer 5 and the sheath 6 are sequentially overlapped and sleeved from inside to outside, the outer side of the sheath 6 is provided with four groups of dislocation preventing bulges 7, the four groups of dislocation preventing bulges 7 are circumferentially arranged on the outer side edge of the sheath 6 in a surrounding mode at intervals, corners of the dislocation preventing bulges 7 are arranged in an arc shape, the protective layer 1 consists of a waterproof cold-resistant layer 8 and a fire-resistant layer 9, the waterproof cold-resistant layer 8 is sleeved on the outer side of the fire-resistant layer 9, the conductor 4 is made of a tin-plated copper conductor 4, the insulating layer 5 is made of a cross-linked polyolefin insulator material, the sheath 6 is made of a TPU elastomer material, the fire-resistant layer 9 is made of a phenolic FRP (also called a second generation phenolic resin) material, the waterproof cold-resistant layer 8 is made of an aluminum-clad plastic composite belt, the waterproof cold-resistant layer 8 is made of the aluminum-clad plastic composite belt by arranging the fire-resistant layer 9 and the waterproof cold-resistant layer 8 and making the fire-resistant layer 9 of the cable, the waterproof and the fire-resistant layer 9 of the whole cable are greatly improved, four groups of dislocation-preventing bulges 7 are arranged on the outer side of the sheath 6, the subsequent use of the core wire can be prevented from being influenced by the mutual friction of rolling dislocation between the inner core bodies, and the edge of the dislocation preventing bulge 7 is arranged into an arc shape to prevent the outer protective layer 1 from being scratched.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. The utility model provides a cold-resistant fire-resistant halogen-free low smoke control compound multicore cable which characterized in that: including inoxidizing coating (1) and cable core (2), cable core (2) are equipped with the multiunit, inoxidizing coating (1) is with the multiunit cable core (2) are overlapped and are established the operation, be formed with the clearance groove between inoxidizing coating (1) and multiunit cable core (2), it has filling layer (3) to fill on the clearance groove, every group cable core (2) comprises conductor (4), insulating layer (5) and sheath (6), conductor (4), insulating layer (5) and sheath (6) are overlapped in proper order from inside to outside and are established, the outside of sheath (6) is provided with four sets of dislocation preventing protruding (7), four sets of dislocation preventing protruding (7) are the circumference interval and encircle the outside edge that sets up at sheath (6), dislocation preventing protruding (7) corner department is circular-arc setting, inoxidizing coating (1) are constituteed by waterproof layer (8) and flame retardant coating (9), waterproof layer (8) cover is established in the outside of flame retardant coating (9).

2. The cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable according to claim 1, wherein: the conductor (4) is manufactured by adopting a tin-plated copper conductor (4).

3. The cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable according to claim 2, wherein: the insulating layer (5) is made of a cross-linked polyolefin insulator material.

4. A cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable according to claim 3, wherein: the sheath (6) layer is made of TPU elastomer materials.

5. The cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable according to claim 4, wherein: the fire-resistant layer (9) is made of phenolic aldehyde FRP (fiber reinforced plastic) also called as a second generation phenolic resin material.

6. The cold-resistant fire-resistant halogen-free low smoke control composite multi-core cable according to claim 5, wherein: the waterproof cold-resistant layer (8) is made of an aluminum-plastic clad composite belt.