Fireproof and moistureproof composite cable

Abstract

The utility model relates to the technical field of cables, and discloses a fire-resistant and moisture-proof composite cable, which comprises a cable jacket, a supporting plate is wrapped on the inner side wall of the cable jacket, a plurality of air holes are arranged on the supporting plate, a cable inner core is wrapped inside the cable jacket, an insulating layer is wound on the outer surface of the cable inner core, and the insulating layer is arranged on the outer side wall of the cable jacket. The outer surface of the cable jacket is wrapped with a fireproof layer. When the fire-resistant and moisture-proof composite cable is used, the fire-resistant layer is added on the cable jacket, and the fire-resistant layer is made of a second-generation phenolic resin material, so that the cable has better fire resistance, the fire-resistant layer can play roles in retarding flame and slowing down fire spreading when a fire disaster occurs, the safety of the cable in the fire disaster is improved, and the service life of the cable is prolonged. And a damp-proof layer is adhered to the inner side wall of the cable jacket and is made of a polyvinyl chloride plastic layer. The moistureproof layer can effectively prevent moist gas and moisture from entering the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a fire-resistant and moisture-proof composite cable. Background Art

[0002] Composite cable is a special type of cable, which is composed of different materials and structures to meet specific usage requirements. The structure of composite cable generally includes conductor, insulation layer, sheath layer and other parts. The conductor is used to transmit current, the insulation layer is used to isolate the electric field, and the sheath layer plays a role in protecting the cable. Composite cables are of various types and widely used. For example, they have important applications in the fields of communication, power, transportation, etc.

[0003] As disclosed in the Chinese patent: Publication No.: 202221541161.8, a fire-resistant and moisture-proof composite cable includes a cable core and a support frame. The cable core is provided with three groups, and the cable core runs through the support frame, and the support frame separates the three groups of cable cores. However, as an important carrier for transmission of electricity, communication, etc., the performance and reliability of the cable are crucial to ensuring the normal operation of the power system and smooth data communication. Since the cable often needs to work in harsh environmental conditions, such as high temperature and humidity, the durability and reliability of the cable has become an important consideration. Utility Model Content

[0004] The purpose of the utility model is to provide a fire-resistant and moisture-proof composite cable to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A fire-resistant and moisture-proof composite cable comprises a cable jacket, wherein the inner side wall of the cable jacket is wrapped with a support plate, and a plurality of air holes are provided on the support plate;

[0007] The cable inner core is wrapped inside the cable jacket, the outer surface of the cable inner core is wrapped with an insulating layer, the outer surface of the cable jacket is wrapped with a fire-resistant layer, and the inner wall of the cable jacket is adhered with a moisture-proof layer.

[0008] Preferably, the fire-resistant layer is made of second-generation phenolic resin material.

[0009] Preferably, the moisture-proof layer is made of a polyvinyl chloride plastic layer.

[0010] Preferably, the insulating layer is made of PE inner tape.

[0011] Preferably, one side wall of the support plate is threadedly connected with a plurality of connecting bolts for fixing the cable jacket.

[0012] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0013] When in use, by adding a fire-resistant layer to the cable jacket, the fire-resistant layer made of the second-generation phenolic resin material makes the cable have better fire resistance. When a fire occurs, the fire-resistant layer can play a role in flame retardancy and slowing down the spread of fire, thereby improving the safety of the cable during a fire. The inner wall of the cable jacket is adhered with a moisture-proof layer, which is made of a polyvinyl chloride plastic layer. This moisture-proof layer can effectively block humid gas and moisture from entering the cable, thereby reducing the impact of moisture on the internal equipment of the cable and improving the durability and reliability of the cable. The inner wall of the cable jacket is wrapped with a support plate, and a plurality of air holes are opened on the support plate. By adding the support plate, the structural strength of the cable can be enhanced, and the compression resistance and impact resistance of the cable can be improved. The design of the air holes can provide ventilation, help heat dissipation, and avoid excessive temperature inside the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the support plate of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the cable jacket analysis of the utility model.

[0018] In the figure: cable jacket 1, cable core 101, insulation layer 102, fire-resistant layer 103, moisture-proof layer 104, support plate 2, air holes 201, connecting bolts 202. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0020] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0021] Example 1: Please refer to Figure 1 , Figure 2and Figure 3 A fire-resistant and moisture-proof composite cable comprises a cable jacket 1, the inner side wall of the cable jacket 1 is wrapped with a support plate 2, a plurality of air holes 201 are opened on the support plate 2, and a plurality of connecting bolts 202 for fixing the cable jacket 1 are threadedly connected to a side wall of the support plate 2;

[0022] The cable core 101 is wrapped inside the cable jacket 1, and the outer surface of the cable core 101 is wrapped with an insulating layer 102. The insulating layer 102 is made of a PE inner tape. The PE inner tape is based on LLDPE (linear low-density polyethylene) resin. It has high elasticity, strength and elongation, and can play a good fastening role for the cable core wire. At the same time, the PE inner tape has a good insulation effect. The outer surface of the cable jacket 1 is wrapped with a fire-resistant layer 103. The fire-resistant layer 103 is made of a second-generation phenolic resin material. The second-generation phenolic resin material has high fire resistance and can maintain good stability and strength at high temperatures. , effectively extending the working time of the cable in a fire and improving the fire resistance level of the cable. Phenolic resin is an environmentally friendly and harmless material that will not cause harm to the environment and human health. The inner wall of the cable jacket 1 is adhered with a moisture-proof layer 104, and the moisture-proof layer 104 is made of a polyvinyl chloride plastic layer. The polyvinyl chloride plastic layer has excellent moisture-proof properties and can effectively prevent humid gas and moisture from entering the interior of the cable, protecting the internal equipment of the cable from moisture, and improving the durability and reliability of the cable. Polyvinyl chloride plastic has good chemical corrosion resistance and can resist the erosion of some chemical substances to ensure the normal use of the cable in complex environments.

[0023] When in use, the support plate 2 can be placed at the corresponding position of the cable jacket 1. When a certain section of the cable jacket 1 needs to be supported, support plates 2 of different lengths can be used according to different needs. One end of the connecting bolt 202 can be adhered to the inner wall of the cable jacket 1 with tape or glue for further fixation.

[0024] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A fire-resistant and moisture-proof composite cable, comprising a cable jacket (1), characterized in that: The inner side wall of the cable jacket (1) is wrapped with a support plate (2), and the support plate (2) is provided with a plurality of ventilation holes (201); The cable jacket (1) is internally wrapped with a cable core (101), the outer surface of the cable core (101) is wrapped with an insulating layer (102), the outer surface of the cable jacket (1) is wrapped with a fire-resistant layer (103), and the inner wall of the cable jacket (1) is adhered with a moisture-proof layer (104).

2. The fire-resistant and moisture-proof composite cable according to claim 1, characterized in that: The fire-resistant layer (103) is made of second-generation phenolic resin material.

3. The fire-resistant and moisture-proof composite cable according to claim 1, characterized in that: The moisture-proof layer (104) is made of a polyvinyl chloride plastic layer.

4. The fire-resistant and moisture-proof composite cable according to claim 1, characterized in that: The insulating layer (102) is made of PE inner tape.

5. The fire-resistant and moisture-proof composite cable according to claim 1, characterized in that: A plurality of connecting bolts (202) for fixing the cable jacket (1) are threadedly connected to a side wall of the support plate (2).

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