CN219225940U

CN219225940U - Fire-resistant cable

Info

Publication number: CN219225940U
Application number: CN202223321654.3U
Authority: CN
Inventors: 陈锋
Original assignee: Shanghai Huanzhu Electric Co ltd
Current assignee: Shanghai Huanzhu Electric Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-20
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to the technical field of cables, in particular to a fireproof cable which comprises a protective layer and a cable core, wherein a fireproof layer is arranged on the inner side of the outer surface of the protective layer, a heat insulation layer is fixedly connected on the inner side of the fireproof layer, an insulating layer is coated on the outer surface of the cable core, a waterproof layer is coated on the outer surface of the insulating layer, a shielding layer is coated on the outer surface of the waterproof layer, and the fireproof layer is made of ceramic silicon rubber; according to the fire-resistant cable, when a fire disaster occurs, the fire-resistant layer made of the ceramic silicon rubber material can protect the heat-insulating layer of the high-temperature glass fiber cloth and increase the fire-resistant effect, the ceramic fiber fire-resistant fiber cotton filled in the fire-resistant cable can well protect the cable from being burnt and damaged, and the cable has good fire resistance through the mutual matching among the fire-resistant cotton, the fire-resistant layer and the heat-insulating layer, so that the fire-resistant cable can stably work in a high-temperature environment, and is more suitable for a fire-fighting system.

Description

Fire-resistant cable

Technical Field

The utility model relates to the technical field of cables, in particular to a fire-resistant cable.

Background

The cable is used for transmitting electric (magnetic) energy, information and wire products for electromagnetic energy conversion. The broad sense of electric wire and cable is also simply referred to as cable, and the narrow sense of cable is referred to as insulated cable, which can be defined as: an aggregate consisting of; one or more insulated cores, and the respective coatings, total protective layers and outer protective layers that they may have, may also have additional uninsulated conductors.

When the cable is used in the fire-fighting system, the situation of using in a high-temperature environment is often encountered easily, and under the high-temperature condition, the cable is easy to ignite, and further the normal operation and use of the cable are affected, so that the cable with fire resistance and excellent flame retardant property is needed to improve the safety of the cable using occasion. In view of this, we propose fire resistant cables.

Disclosure of Invention

To remedy the above deficiencies, the present utility model provides a fire resistant cable.

The technical scheme of the utility model is as follows:

a fire resistant cable comprising:

the cable comprises a protection layer and a cable core, wherein a fire-resistant layer is arranged on the inner side of the outer surface of the protection layer, a heat-insulating layer is fixedly connected on the inner side of the fire-resistant layer, an insulating layer is coated on the outer surface of the cable core, a waterproof layer is coated on the outer surface of the insulating layer, and a shielding layer is coated on the outer surface of the waterproof layer.

Preferably, the refractory layer is made of ceramic silicone rubber.

Preferably, the heat insulation layer is made of high-temperature glass fiber cloth.

Preferably, the outer surface of the protective layer is coated with fluorescent paint.

Preferably, the insulating layer is made of PVC material, and the shielding layer, the waterproof layer and the insulating layer form a functional layer together, so that the cable core 3 is wrapped and protected.

Preferably, the gap between the protective layer and the cable core is filled with fire-resistant cotton.

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

according to the fire-resistant cable, when a fire disaster occurs, the fire-resistant layer made of the ceramic silicon rubber material can protect the heat-insulating layer of the high-temperature glass fiber cloth and increase the fire-resistant effect, the ceramic fiber fire-resistant fiber cotton filled in the fire-resistant cable can well protect the cable from being burnt and damaged, and the cable has good fire resistance through the mutual matching among the fire-resistant cotton, the fire-resistant layer and the heat-insulating layer, so that the fire-resistant cable can stably work in a high-temperature environment, and is more suitable for a fire-fighting system.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the protective layer according to the present utility model;

fig. 3 is a schematic diagram of the internal structure of the functional layer of the present utility model.

The meaning of each reference numeral in the figures is:

1. a protective layer; 2. a functional layer; 3. a cable core; 4. fire-resistant cotton; 5. fluorescent paint; 6. a refractory layer; 7. a thermal insulation layer; 8. a shielding layer; 9. a waterproof layer; 10. an insulating layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, the present utility model is described in detail by the following embodiments:

a fire resistant cable comprising:

protective layer 1 and cable core 3, and cable core 3 is located protective layer 1 inside, and protective layer 1 surface inboard is provided with flame retardant coating 6, and flame retardant coating 6 inboard fixedly connected with insulating layer 7, cable core 3 surface cladding has insulating layer 10, and insulating layer 10 surface cladding has waterproof layer 9, and waterproof layer 9 can prevent that the cable conductor is inside intaking, and waterproof layer 9 surface cladding has shielding layer 8, and shielding layer 8 mainly is made by the copper strips, and shielding layer 8 can prevent that the cable conductor during operation from receiving external interference.

The refractory layer 6 is made of ceramic silicon rubber material and can be burnt at 1500 ℃ to form a ceramic hard shell.

The heat insulation layer 7 is made of high-temperature glass fiber cloth, has good heat insulation effect, and wraps the cable by winding.

The outer surface of the protective layer 1 is coated with fluorescent paint 5, and the paint can emit light, so that the cable is more striking at night, and is convenient for workers to find and find.

The insulating layer 10 is PVC material, has fine insulating effect, avoids taking place the electric leakage phenomenon, and shielding layer 8, waterproof layer 9 and insulating layer 10 constitute functional layer 2 jointly, and the parcel is lived cable core 3 and is played the guard action to it.

The gap between the protective layer 1 and the cable core 3 is filled with fire-resistant cotton 4, and the fire-resistant cotton 4 is made of ceramic fiber fire-resistant fiber cotton, so that the cable has good fire resistance, and the cable core 3 is prevented from being spread by fire, so that the normal operation of the cable is prevented from being influenced.

According to the fire-resistant cable, when a fire disaster occurs, the fire-resistant layer 6 made of the ceramic silicon rubber material can protect the heat-insulating layer 7 of the high-temperature glass fiber cloth and increase the fire-resistant effect, the ceramic fiber fire-resistant fiber cotton filled in the fire-resistant cable can well protect the cable from being damaged by combustion, and the cable has good fire resistance through the mutual cooperation among the fire-resistant cotton 4, the fire-resistant layer 6 and the heat-insulating layer 7, so that the fire-resistant layer can stably work in a high-temperature environment, and is more suitable for a fire-fighting system.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Fire-resistant cable, its characterized in that: comprising the following steps:

protective layer (1) and cable core (3), protective layer (1) surface inboard is provided with flame retardant coating (6), flame retardant coating (6) inboard fixedly connected with insulating layer (7), cable core (3) surface cladding has insulating layer (10), insulating layer (10) surface cladding has waterproof layer (9), waterproof layer (9) surface cladding has shielding layer (8).

2. The fire resistant cable according to claim 1, characterized in that: the fire-resistant layer (6) is made of ceramic silicon rubber.

3. The fire resistant cable according to claim 1, characterized in that: the heat insulation layer (7) is made of high-temperature glass fiber cloth.

4. The fire resistant cable according to claim 1, characterized in that: the outer surface of the protective layer (1) is coated with fluorescent paint (5).

5. The fire resistant cable according to claim 1, characterized in that: the insulating layer (10) is PVC material, the shielding layer (8), the waterproof layer (9) and the insulating layer (10) jointly form the functional layer (2), and the cable core (3) is wrapped and protected.

6. The fire resistant cable according to claim 1, characterized in that: and a gap between the protective layer (1) and the cable core (3) is filled with fire-resistant cotton (4).