CN202434231U - Ceramic fire-resistant silicon rubber insulating cable of aluminum alloy conductor - Google Patents

Abstract

The utility model relates to the field of cables, in particular to a ceramic fire-resistant silicon rubber insulating cable of an aluminum alloy conductor, which overcomes the deficiency that a cable in the prior art has high copper consumption and poor heat resistance. The utility model provides the ceramic fire-resistant silicon rubber insulating cable of the aluminum alloy conductor. The ceramic fire-resistant silicon rubber insulating cable of the aluminum alloy conductor comprises a cable core, a glass fiber filling part, a high temperature resisting flame-retardant glass woven belt wrapping layer and a ceramic fire-resistant silicon rubber outer cover layer. The glass fiber filling part is filled between the cable core and the high temperature resisting flame-retardant glass woven belt wrapping layer. The outmost layer is the ceramic fire-resistant silicon rubber outer cover layer. The long-term overload capacity of the cable is much stronger than that of the existing power cable. The fire-resistant insulating layer provided by the utility model is formed in a way that ceramic fire-resistant silicon rubber is used for insulation and insulation can form a high temperature resisting ceramic solid after being subjected to high temperature or flame burning, good electric insulating performance is achieved, the normal operation of the cable in the flame can be guaranteed, and the cable can bear water spray by a certain amount water and vibration with certain strength, and lines are enabled not to be cracked or short-circuited.

Description

Aluminum alloy conductor vitrified refractory silicone rubber insulated cable

technical field

The utility model relates to the field of cables, in particular to an aluminum alloy conductor vitrified refractory silicon rubber insulated cable.

Background technique

As humans pay more and more attention to the protection of the ecological environment and their own health, higher and more comprehensive requirements are put forward for the safety performance of cables. Fire-resistant cables are widely used in high-rise buildings, hotels, large supermarkets, hospitals, stations, airports, subways, tunnels, large-scale public sports, entertainment venues, public transportation facilities, etc., in order to ensure power within a certain period of time in case of fire And the unimpeded communication, to maximize the precious rescue time, reduce casualties and loss of life and property.

Most of the fire-resistant insulated cables with magnesia minerals and fire-resistant cables wound with mica tape are used at home and abroad. The production and processing of magnesia minerals fire-resistant insulated cables cannot be as convenient as polymer materials, and special imported equipment is required. It is difficult to lay and install, and the cost of raw materials The cost is high, it is difficult to popularize and use it on a large scale, and it is 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 ensure the safety and smoothness of communication and power in case of fire, and the fire resistance effect is poor.

Utility model content

In order to overcome the disadvantages of existing cables such as high copper consumption and poor heat resistance, the purpose of this utility model is to provide a kind of aluminum alloy conductor vitrified refractory silicon rubber insulated cable.

The technical scheme adopted by the utility model to solve the technical problems is as follows: a ceramic refractory silicon rubber insulated cable with an aluminum alloy conductor, which includes a cable core, a glass fiber filling part, a high temperature resistant flame retardant glass cloth tape around the cladding, and a porcelain Fire-resistant silicone rubber outer sheath; the glass fiber filling part is filled between the cable core and the high-temperature-resistant flame-retardant glass cloth tape wrapping layer, and the outermost layer is a vitrified refractory silicone rubber outer sheath.

There is one or more than one cable core, and glass fiber filling parts are filled between each cable core.

The cable core is composed of a heat-resistant aluminum alloy conductor and a vitrified refractory silicon rubber insulating layer, and the vitrified refractory silicon rubber insulating layer is coated on the heat-resistant aluminum alloy conductor.

The heat-resistant aluminum alloy conductor adopts a single heat-resistant aluminum alloy wire, or a heat-resistant aluminum alloy conductor composed of multiple heat-resistant aluminum alloy wires tightly pressed or not tightly pressed; the cross-section of the heat-resistant aluminum alloy wire is regular shape. The cross-section of the heat-resistant aluminum alloy wire is preferably circular or elliptical.

It may also include a flame-retardant inner lining layer, and the flame-retardant inner lining layer is located outside the wrapping layer of high-temperature-resistant flame-retardant glass cloth and inside the outer protective layer of vitrified refractory silicone rubber.

It may also include an armoring layer, which is located outside the wrapping layer of high-temperature-resistant and flame-retardant glass cloth tape, and inside the outer sheathing layer of vitrified refractory silicone rubber.

Porcelain refractory silicone rubber insulation layer is wrapped on the heat-resistant aluminum alloy conductor to form a cable core, and the glass fiber filling part is filled between the 4 cable cores, and the glass fiber filling is filled between the cable core and the high temperature resistant flame retardant glass cloth tape wrapping layer The outer part of the high temperature resistant flame retardant glass cloth tape wrapping is a flame retardant inner lining, the outer flame retardant inner lining is an armor layer, and the outermost layer is a vitrified refractory silicone rubber outer sheath

The utility model uses aluminum alloy as the conductor, and the conductor and the insulation can withstand high temperature and has a strong overload capacity; it can replace copper cables, thereby saving a large amount of precious copper resources. Using vitrified refractory silicone rubber as insulation, the cost performance is better than any kind of refractory cable currently on the market. The outer surface of the cable is the outer sheath.

The utility model has obvious characteristics in structure:

The cable of the utility model adopts heat-resistant aluminum alloy single aluminum alloy wire or multi-strand stranded compacted or non-compressed conductor, high-temperature-resistant glass fiber is used as filling material, and the wrapping layer is high-temperature-resistant glass fiber flame-retardant tape.

Compared with the prior art, the utility model has obvious technical advantages:

1. The long-term overload capacity of the cable is much higher than that of the existing power cables.

2. The refractory insulating layer of the utility model is insulated by ceramizable refractory silicone rubber. When it is burned by high temperature or flame, the insulation can be formed into a high temperature resistant ceramic solid, and has good electrical insulation performance, which can ensure that the cable It can operate normally in flames, 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.

3. The materials used in the utility model are environmentally friendly and non-toxic, and have good mechanical properties.

4. Compared with the previous mineral insulated cables and ordinary fire-resistant cables, the utility model has the characteristics of easy production, easy installation and high cost performance.

5. The utility model has the advantages of large carrying capacity, high operating temperature, easy bending of the cable and not easy to deform.

Description of drawings

Fig. 1 is a structural schematic diagram of the aluminum alloy conductor vitrified refractory silicon rubber insulated cable of the utility model.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but not as a limitation of the utility model.

Please refer to the embodiment of the utility model aluminum alloy conductor vitrified refractory silicon rubber insulated cable shown in Fig. 1, referring to Fig. 1,

Example 1:

The conductor 1 of the utility model adopts heat-resistant aluminum alloy multi-strand or single aluminum alloy wire, and its performance meets the requirements of GB/T3956-2008 wire. The conductor can be a round or shaped conductor. The core is formed into a cable, filled with heat-resistant glass fiber material, then wrapped with a high-temperature resistant glass fiber flame-retardant tape, and then extruded to form an outer sheath to make the utility model. A high temperature resistant inner liner and a steel strip or an aluminum alloy tape armor layer can be arranged between the high temperature resistant glass fiber flame retardant tape and the outer sheath.

Specifically, the porcelain refractory silicone rubber insulating layer 2 is wrapped on the heat-resistant aluminum alloy conductor 1 to form a cable core, and the glass fiber filling part 3 is filled between the four cable cores, and the cable core is wrapped with a high-temperature-resistant flame-retardant glass cloth tape. The glass fiber filling part 3 is filled between the layers 4, the high temperature resistant flame retardant glass cloth tape is wrapped around the cladding layer 4 and the outer layer is a flame retardant inner lining layer 5, the outer layer of the flame retardant inner lining layer 5 is an armor layer 6, and the outermost layer is porcelain Fire-resistant silicone rubber outer sheath7.

The above-mentioned embodiment is only a kind of preferred embodiment of the utility model, and the usual changes and replacements carried out by those skilled in the art within the scope of the technical solutions of the utility model should be included in the protection scope of the utility model Inside.

Claims (9)

1. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable is characterized in that it includes a cable core, a glass fiber filling part, a high temperature resistant flame retardant glass cloth tape wrapping layer, a vitrified refractory silicone rubber outer sheath; the cable core and The high-temperature-resistant and flame-retardant glass cloth tape is filled with glass fiber filling parts between the wrapping layers, and the outermost layer is a vitrified refractory silicone rubber outer sheath. 2. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to claim 1, characterized in that: there are one or more than one cable core, and glass fiber filling parts are filled between each cable core. 3. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to claim 2, characterized in that: there are 4 cable cores, each cable core is filled with a glass fiber filling part, and the cable core and the high temperature resistant flame retardant glass The glass fiber filling part is filled between the wrapping layers of the cloth tape. 4. The aluminum alloy conductor vitrified refractory silicon rubber insulated cable according to claim 1, characterized in that: the cable core is composed of a heat-resistant aluminum alloy conductor and a vitrified refractory silicon rubber insulating layer, and the vitrified refractory silicon rubber The rubber insulating layer is wrapped around the heat-resistant aluminum alloy conductor. 5. The aluminum alloy conductor vitrified refractory silicon rubber insulated cable according to claim 4, characterized in that: the heat-resistant aluminum alloy conductor adopts a single heat-resistant aluminum alloy wire, or consists of multiple strands of heat-resistant aluminum alloy wire A heat-resistant aluminum alloy conductor composed of compact or non-compact; the cross-section of the heat-resistant aluminum alloy wire has a regular shape. 6. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to claim 5, characterized in that: the cross section of the heat-resistant aluminum alloy wire is circular or oval. 7. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to claim 1, characterized in that it also includes a flame-retardant inner lining, and the flame-retardant inner lining is located on the high-temperature-resistant flame-retardant glass cloth tape wrapping layer Outside, vitrified refractory silicone rubber outer sheath. 8. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to claim 1, characterized in that: it also includes an armor layer, and the armor layer is located outside the wrapping layer of high-temperature-resistant and flame-retardant glass cloth tape, and the porcelain In the outer sheath of refractory silicone rubber. 9. The aluminum alloy conductor vitrified refractory silicone rubber insulated cable according to any one of claims 1-8, characterized in that: the vitrified refractory silicone rubber insulating layer is coated on the heat-resistant aluminum alloy conductor to form a cable core, 4 The glass fiber filling part is filled between the cable core and between the cable core and the wrapping layer of high-temperature-resistant and flame-retardant glass cloth tape. Armoring layer, the outermost layer is a vitrified refractory silicone rubber outer sheath.

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