CN202749112U - Vitrified fireproof fire-resistant silicone rubber wire cable - Google Patents

Abstract

The utility model relates to a vitrified fireproof fire-resistant silicone rubber wire cable. The wire cable includes a plurality of conductors. Vitrified silicon rubber insulating layers are pressingly wrapped at the exteriors of the conductors to form wire cores; a wrapping tape layer is pressingly wrapped around the plurality of wire cores to form a cable core; padding is arranged in the cable core; and a vitrified silicone rubber outer sheath is arranged outside the cable core. Compared with an ordinary rubber cable and an flame-retardant rubber cable, the wire cable of the utility model is advantageous in that: after the wire cable is burned by high-temperature flames, a hard shell body is formed and can protect a burning object from being damaged; the hard shell body which is formed after the wire cable is burned can protect the wire cable, thereby ensuring smoothness of electric power supplying and communication and saving precious time for personnel evacuation and rescue in a fire disaster.

Description

Ceramic fireproof refractory silicone rubber wire and cable

technical field

The utility model relates to a wire and cable, in particular to a ceramicized fireproof and refractory silicon rubber wire and cable.

Background technique

In recent years, after fires in several large public entertainment venues, chemical industry, coal mines, and commercial buildings in China caused tragic loss of people's lives and property, people have a deeper understanding of fire protection and fire safety. With the rapid growth of urban population, high-rise buildings, hotels, large supermarkets, hospitals, stations, and airports continue to increase, the construction of subways and tunnels, and the increase of large-scale public sports, entertainment venues, and public transportation facilities. The importance of safety is highlighted. How to ensure the smooth flow of power and communication within a certain period of time in the event of a fire, maximize the precious rescue time, and reduce casualties and loss of life and property, this is a subject that people have been constantly exploring.

At present, most of the cables used at home and abroad are magnesia mineral fire-resistant insulated cables and fire-resistant cables wound with mica tape. Magnesia mineral fire-resistant insulated cables need special production and processing equipment, and the equipment for producing magnesium oxide mineral fire-resistant insulated cables not only needs to be imported, but also very expensive, and the capital investment is too large; in addition, the outer sheath of magnesium oxide mineral fire-resistant insulated cables is full The cost of copper is relatively high, and its practical application is limited to a certain extent; coupled with the special requirements of copper-sheathed magnesium oxide mineral fire-resistant insulated cables in the process of production, processing, transportation, line laying, installation and use, such as The production and processing of magnesium oxide mineral fire-resistant insulated cables cannot be as convenient as polymer materials. It is difficult to lay and install, and the cost of raw materials is high. It is difficult to popularize and use it on a large scale, especially difficult to promote it in civil buildings. The fire-resistant cable wrapped with mica tape needs to be wound in multiple layers in the production process. Due to the limitation of process conditions, it is easy to cause defects at the lap joints. It is difficult to guarantee the safety and smoothness of communication and power in case of fire.

Utility model content

In order to solve the above problems, the utility model provides a ceramicized fireproof and refractory silicon rubber wire and cable with good flame retardant effect, long service life, halogen-free and low smoke.

The technical solution of the utility model is: comprising a plurality of conductors, the conductors are extruded with a ceramic silicon rubber insulating layer to form a wire core, and a plurality of wire cores are extruded with a tape layer to form a cable core, and the cable core is provided with filling, The outer sheath of ceramicized silicon rubber is provided outside the cable core.

The filling is glass fiber filling.

The tape layer is a glass fiber tape.

The utility model has characteristics superior to ordinary rubber cables and flame-retardant rubber cables. The ceramicized fire-resistant and refractory silicon rubber cables have the performance of ordinary silicon rubber cables at room temperature. After ablation by high-temperature flames, a hard shell is formed to protect Burned objects are not damaged. Ceramicized fireproof and refractory silicone rubber wires and cables are used to protect the wires and cables with a hard shell formed after being ablated, thus ensuring the smooth flow of power and communication, and gaining valuable time for evacuation and rescue in case of fire.

The silicone rubber of the utility model is to add white carbon black, silicone oil, and other additives to the methyl vinyl silicone rubber. Extruded to make a cable.

The cable can be of single-core structure or multi-core structure. The structure of the single-core cable is a copper conductor and a fire-resistant silicone rubber insulation. The structure of the multi-core cable is copper conductor, fire-resistant silicone rubber insulation, glass fiber filling, glass fiber tape, and fire-resistant silicone rubber sheath.

The utility model has the advantages of:

1) In a flame of 650-1000°C or above, after ablation of 90-180 minutes or more, the silicone rubber is sintered into a hard ceramic shell in a short period of time, a hard ceramic shell, It ensures that the line is not broken, short-circuited, and flame-retardant during the process of being ablated, and has very good flame retardancy, thereby ensuring that the line is continuously powered in a fire, and provides a guarantee for escape and fire rescue;

2) It has the characteristics of flame retardant, halogen-free, and low smoke, and complies with the EU ROHS directive. It does not produce corrosive and toxic substances and gases during combustion, and will not cause secondary harm to the victims;

3) The sintered hard shell can withstand a certain amount of water spray and vibration of a certain intensity, and can ensure that the line is not broken or short-circuited, providing the necessary prerequisite for fire protection and disaster reduction;

4) Due to the very good flame retardancy and the protection of the hard shell, in the process of carrying overload, overload, and short-circuit current to cause conductor fusing (1083°C), there will be no short circuit, no fire, and copper liquid formed by conductor fusing Does not flow out of the line, eliminating the fire hazard caused by overloading and short circuit of the wire;

5) At room temperature, it has the characteristics of high temperature resistance, anti-aging, and excellent electrical properties of ordinary silicone rubber wire and cable;

6) The production and processing of this utility model are the same as the processing technology of ordinary silicon rubber wires and cables. It does not need to change the process and increase equipment, and it does not need to wind mica tape, asbestos, etc., and it can be used as a fireproof layer and an insulating layer by extrusion molding at one time. Part of the sheath can also be used, which simplifies the processing technology of fire-resistant wire and cable, thereby greatly reducing the cost;

7) In the case of fire, it can ensure the smooth flow of communication and power lines, win precious time for the rescue of life and property, and make an important contribution to reducing fire losses.

The good fire-fighting and fire-proof characteristics of the utility model enable it to be widely used in places with very high requirements for public fire-fighting and fire-proof safety.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1 is a conductor, 2 is an insulating layer, 3 is a filling, 4 is a tape layer, and 5 is an outer sheath.

Detailed ways

Ceramicized fireproof and refractory silicone rubber wire and cable, including multiple conductors 1, the conductors 1 are extruded with a ceramicized silicone rubber insulating layer 2 to form a core, and multiple cores are extruded with a glass fiber tape layer 4 to form a cable core. A glass fiber filling 3 is provided inside the cable core, and a vitrified silicone rubber outer sheath 5 is provided outside the cable core.

Claims (3)

1. Ceramicized fire-resistant and refractory silicone rubber wire and cable, characterized in that: it includes multiple conductors, the conductors are extruded with a ceramicized silicone rubber insulating layer to form a core, and multiple cores are extruded with a tape layer to form a cable core. Filling is provided inside the cable core, and a vitrified silicone rubber outer sheath is provided outside the cable core. 2. The ceramicized fireproof and refractory silicone rubber wire and cable according to claim 1, characterized in that: the filler is glass fiber filler. 3. The ceramicized fireproof and refractory silicone rubber wire and cable according to claim 1, characterized in that: the tape layer is a glass fiber tape.

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