CN213092875U

CN213092875U - Multi-core fire-resistant overhead insulated cable

Info

Publication number: CN213092875U
Application number: CN202022012330.6U
Authority: CN
Inventors: 刘松
Original assignee: Hebei Antong Wire And Cable Co ltd
Current assignee: Hebei Antong Wire And Cable Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-30
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses an aerial insulated cable of multicore fire-resistant type, including outer protective layer, cavity layer, filling layer, multiwire group and single line group. The utility model discloses aerial insulated cable of multicore fire-resistant type, the outer protective layer carries out basic protection work in the outside, vacuum layer between outer layer and the inner connecting layer can effectual isolated flame's burning, fine sand in the inboard filling layer of inner connecting layer can effectual isolated flame burning, fine sand can put out miniature flame simultaneously, the armor of many outer inside of lines can effectually be isolated high temperature and flame, protect the inside multi-thread wire group of many thread leather sheath, the outer inside single line isolated layer of single line can effectually be isolated high temperature and flame, protect the inside single line body of single line leather sheath, this structure can carry out effectual parcel to the inside multicore wire, realize the fire prevention and the insulation to the inner conductor.

Description

Multi-core fire-resistant overhead insulated cable

Technical Field

The utility model relates to the technical field of cables, specifically be an aerial insulated cable of fire-resistant type of multicore.

Background

A cable is made up of one or more mutually insulated conductors and an outer insulating sheath, the conductors carrying power or information from one location to another, usually being a rope-like cable made up of several or groups of at least two twisted conductors, each group being insulated from each other and usually twisted around a center, the whole being covered with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation.

With the continuous progress of social development, the requirements of people on safety protection are continuously improved. In the field of fire-resistant cables, people have higher and higher requirements on the continuous power supply capacity of the fire-resistant power cables in fire disasters, and the insulation performance of the fire-resistant power cables has an important influence on the continuous power supply capacity of the fire-resistant power cables in fire disasters.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aerial insulated cable of multicore fire-resistant type, the outer protective layer carries out basic protection in the outside, vacuum layer between outer layer and the inner linkage can effectual isolated flame's burning, fine sand in the inboard filling layer of inner linkage can effectual isolated flame burning, fine sand can put out miniature flame simultaneously, many-thread outer inside armor can effectually be isolated high temperature and flame, protect the inside multi-thread wire group of multi-thread leather sheath, the outer inside single line isolated layer of single line can effectually be isolated high temperature and flame, protect the inside single line body of single line leather sheath, this structure can carry out effectual parcel to the inside multicore wire, realize fire prevention and insulation to inside wire, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-core fire-resistant overhead insulated cable comprises an outer protective layer, a hollow layer, a filling layer, a plurality of wire groups and a plurality of wire groups, wherein the hollow layer is arranged on the inner side of the outer protective layer, the filling layer is arranged on the inner side of the hollow layer, the plurality of wire groups are arranged in the filling layer, and the plurality of wire groups are arranged between the two plurality of wire groups;

the hollow layer comprises an external layer, a connecting layer, an internal connecting layer and a vacuum layer, the outer side of the external layer is connected with the external protective layer, the inner side fixedly connected with connecting layer of the external layer is far away from the connecting layer, and the vacuum layer is arranged between the connecting layers.

Preferably, multi-thread group is including multi-thread skin, multi-thread outer packing, armor, spacing lug, multi-thread intussuseption, multi-thread leather sheath and multi-thread wire group, multi-thread outer inboard is equipped with multi-thread outer packing, the inboard of multi-thread outer packing is equipped with the armor, the outer fixed surface of armor installs spacing lug, the inboard of armor is equipped with multi-thread intussuseption, the inside of multi-thread intussuseption is equipped with multi-thread leather sheath, the inside of multi-thread leather sheath is equipped with multi-thread wire group.

Preferably, the single line group includes that the single line is outer, single line articulamentum, single line isolated layer, single line leather sheath and single line body, the outer inboard of single line is equipped with the single line articulamentum, the inboard of single line articulamentum is equipped with the single line isolated layer, the inboard of single line isolated layer is equipped with the single line leather sheath, the inboard of single line leather sheath is equipped with the single line body.

Preferably, the single-wire isolation layer is a component made of glass fiber materials, the outer side of the single-wire isolation layer is fixedly connected with the single-wire connecting layer, and the inner side of the single-wire isolation layer is fixedly connected with the single-wire leather sheath.

Preferably, the filling layer is a member filled with fine sand, the fine sand fills the filling layer, and the outer side of the filling layer is in contact with the inner connecting layer.

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

the utility model discloses aerial insulated cable of multicore fire-resistant type, the outer protective layer carries out basic protection work in the outside, vacuum layer between outer layer and the inner connecting layer can effectual isolated flame's burning, fine sand in the inboard filling layer of inner connecting layer can effectual isolated flame burning, fine sand can put out miniature flame simultaneously, the armor of many outer inside of lines can effectually be isolated high temperature and flame, protect the inside multi-thread wire group of many thread leather sheath, the outer inside single line isolated layer of single line can effectually be isolated high temperature and flame, protect the inside single line body of single line leather sheath, this structure can carry out effectual parcel to the inside multicore wire, realize the fire prevention and the insulation to the inner conductor.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the hollow layer of the present invention;

fig. 3 is a schematic structural view of the multi-wire set of the present invention;

fig. 4 is a schematic structural diagram of the single-wire set of the present invention.

In the figure: 1. an outer protective layer; 2. a hollow layer; 21. an external connection layer; 22. a connecting layer; 23. an inner connection layer; 24. a vacuum layer; 3. a filling layer; 4. a plurality of wire groups; 41. a multi-thread outer layer; 42. filling outside the multi-line; 43. an armor layer; 44. a limiting bump; 45. filling in multiple lines; 46. a multi-thread leather sheath; 47. a multi-wire lead group; 5. a group of singles; 51. a single wire outer layer; 52. a single wire connection layer; 53. a single-wire insulating layer; 54. a single-wire leather sheath; 55. a single wire body.

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 multi-core fire-resistant overhead insulated cable comprises an outer protective layer 1, a hollow layer 2, a filling layer 3, a plurality of wire sets 4 and a single wire set 5, wherein the hollow layer 2 is arranged on the inner side of the outer protective layer 1, the filling layer 3 is arranged on the inner side of the hollow layer 2, the plurality of wire sets 4 are arranged inside the filling layer 3, the single wire set 5 is arranged between the two plurality of wire sets 4, the hollow layer 2 comprises an external layer 21, a connecting layer 22, an internal layer 23 and a vacuum layer 24, the outer side of the external layer 21 is connected with the outer protective layer 1, the inner side of the external layer 21 is fixedly connected with the connecting layer 22, the connecting layer 22 is fixedly connected with the internal layer 23 on the side far away from the external layer 21, the filling layer 3 is a member filled with fine sand, the outer side of the filling layer 3 is in contact with the internal layer 23, the vacuum layer 24 is arranged between the connecting layers 22, the outer protective layer, the vacuum layer 24 between the external connection layer 21 and the internal connection layer 23 can effectively isolate the burning of flame, and the fine sand in the filling layer 3 on the inner side of the internal connection layer 23 can effectively isolate the burning of flame, and meanwhile, the fine sand can extinguish the small flame.

Referring to fig. 3, the multi-wire group 4 includes a multi-wire outer layer 41, a multi-wire outer filling 42, an armor layer 43, a limiting bump 44, a multi-wire inner filling 45, a multi-wire leather sheath 46 and a multi-wire group 47, the multi-wire outer filling 42 is disposed on the inner side of the multi-wire outer layer 41, the armor layer 43 is disposed on the inner side of the multi-wire outer filling 42, the limiting bump 44 is fixedly mounted on the outer surface of the armor layer 43, the multi-wire inner filling 45 is disposed on the inner side of the armor layer 43, the multi-wire leather sheath 46 is disposed inside the multi-wire inner filling 45, the multi-wire group 47 is disposed inside the multi-wire leather sheath 46, and the armor layer 43 inside the multi-wire outer layer 41 can effectively.

Please refer to fig. 4, the single wire group 5 includes a single wire outer layer 51, a single wire connection layer 52, a single wire isolation layer 53, a single wire leather sheath 54 and a single wire body 55, the inner side of the single wire outer layer 51 is provided with the single wire connection layer 52, the inner side of the single wire connection layer 52 is provided with the single wire isolation layer 53, the inner side of the single wire isolation layer 53 is provided with the single wire leather sheath 54, the single wire isolation layer 53 is a component made of glass fiber, the outer side of the single wire isolation layer 53 is fixedly connected with the single wire connection layer 52, the inner side of the single wire isolation layer 53 is fixedly connected with the single wire leather sheath 54, the inner side of the single wire leather sheath 54 is provided with the single wire body 55, the single wire isolation layer 53 inside the single wire outer layer 51 can effectively isolate high temperature and flame.

The working principle is as follows: outer protective layer 1 carries out basic guard work in the outside, vacuum layer 24 between outer 21 and the inner tie 23 can effectual isolated flame's burning, fine sand in the filling layer 3 of inner tie 23 inboard can effectual isolated flame burning, fine sand can put out miniature flame simultaneously, armor 43 inside multi-thread outer 41 can effectually be isolated high temperature and flame, protect the inside multi-thread wire group 47 of multi-thread leather sheath 46, single line insulating layer 53 inside single line outer 51 can effectually be isolated high temperature and flame, protect single line body 55 inside single line leather sheath 54.

In summary, the following steps: the utility model discloses aerial insulated cable of multicore fire-resistant type, outer protective layer 1 carries out basic protection work in the outside, vacuum layer 24 between outer 21 and the inner tie 23 can effectual isolated flame's burning, fine sand in the inboard filling layer 3 of inner tie 23 can effectual isolated flame burning, fine sand can put out miniature flame simultaneously, many outer 41 inside armor 43 can effectually be isolated high temperature and flame, protect the inside multi-thread wire group 47 of multi-thread leather sheath 46, single outer 51 inside single wire isolated layer 53 can effectually be isolated high temperature and flame, protect the inside single wire body 55 of single wire leather sheath 54, this structure can carry out effectual parcel to inside multicore wire, realize fire prevention and insulation to inside wire.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an overhead insulated cable of multicore fire-resistant type, includes outer protective layer (1), hollow layer (2), filling layer (3), multiwire group (4) and single line group (5), its characterized in that: a hollow layer (2) is arranged on the inner side of the outer protection layer (1), a filling layer (3) is arranged on the inner side of the hollow layer (2), a plurality of wire groups (4) are arranged inside the filling layer (3), and a single wire group (5) is arranged between the two plurality of wire groups (4);

hollow layer (2) are including external layer (21), articulamentum (22), inner connecting layer (23) and vacuum layer (24), the outside of external layer (21) is connected with outer protective layer (1), inboard fixedly connected with articulamentum (22) of external layer (21), one side fixedly connected with inner connecting layer (23) of external layer (21) are kept away from in articulamentum (22), be equipped with vacuum layer (24) between articulamentum (22).

2. The multi-core fire-resistant overhead insulated cable of claim 1, wherein: the multi-wire set (4) comprises a multi-wire outer layer (41), a multi-wire outer filling (42), an armor layer (43), a limiting bump (44), a multi-wire inner filling (45), a multi-wire leather sheath (46) and a multi-wire set (47), wherein the inner side of the multi-wire outer layer (41) is provided with the multi-wire outer filling (42), the inner side of the multi-wire outer filling (42) is provided with the armor layer (43), the outer surface of the armor layer (43) is fixedly provided with the limiting bump (44), the inner side of the armor layer (43) is provided with the multi-wire inner filling (45), the inner part of the multi-wire inner filling (45) is provided with the multi-wire leather sheath (46), and the inner part of the.

3. The multi-core fire-resistant overhead insulated cable of claim 1, wherein: the single line group (5) comprises a single line outer layer (51), a single line connecting layer (52), a single line isolating layer (53), a single line leather sheath (54) and a single line body (55), the inner side of the single line outer layer (51) is provided with the single line connecting layer (52), the inner side of the single line connecting layer (52) is provided with the single line isolating layer (53), the inner side of the single line isolating layer (53) is provided with the single line leather sheath (54), and the inner side of the single line leather sheath (54) is provided with the single line body (55).

4. The multi-core fire-resistant overhead insulated cable of claim 3, wherein: the single-wire insulation layer (53) is a component made of glass fiber materials, the outer side of the single-wire insulation layer (53) is fixedly connected with the single-wire connecting layer (52), and the inner side of the single-wire insulation layer (53) is fixedly connected with the single-wire leather sheath (54).

5. The multi-core fire-resistant overhead insulated cable of claim 1, wherein: the filling layer (3) is a member filled with fine sand, the fine sand fills the filling layer (3), and the outer side of the filling layer (3) is in contact with the inner connecting layer (23).