Fireproof high-temperature-resistant aluminum alloy cable

Abstract

The utility model discloses a fireproof high-temperature-resistant aluminum alloy cable, which belongs to the technical field of cables and comprises a plurality of cable core structures, a filling layer arranged outside the plurality of cable core structures, a lining layer arranged outside the filling layer, a waterproof layer arranged outside the lining layer and a fireproof mud layer arranged outside the waterproof layer. A buffer layer is arranged outside the fireproof mud layer, a ceramic silicone rubber layer is arranged outside the buffer layer, and a sheath layer is arranged outside the ceramic silicone rubber layer. According to the fireproof high-temperature-resistant aluminum alloy cable, the waterproof layer can prevent moisture generated after the fireproof mud layer is heated from permeating to the cable core structure, and meanwhile, the buffer layer can deform when the fireproof mud layer expands, so that the structural integrity of the porcelainized silicone rubber layer is ensured, and the fireproof performance of the cable is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, in particular, relate to a fire -resistant high temperature resistant aluminum alloy cable. BACKGROUND

[0002] Aluminum alloy cable is with aluminum alloy material as conductor's cable, its still can keep the stability of connection when long time overload or overheat, and its surface can form a kind of thin and solid oxide layer when contact with air, can resist various corrosion, and price is lower than copper cable, suitable for various electric power facilities, can realize the lightweight of cable, low -cost production.

[0003] Although aluminum alloy cable has the above-mentioned advantages compared with copper core cable, but in the fireproof effect aspect, due to the melting point of aluminum alloy is lower than copper, lead to the fireproof effect of aluminum alloy cable is relatively poor, therefore, want to guarantee the continuous normal work of aluminum alloy cable, especially when fire, how to prolong the time of cable normal work to give the rescue flow enough time is particularly important. At present, in order to improve the fireproof performance of aluminum alloy cable, some manufacturers add fire clay layer in the cable, fire clay is a kind of flexible flame retardant material, has very high fire resistance, and low smoke emission, to a certain extent, enhances the fireproof ability of cable. However, when the fire clay is subjected to high temperature, the water and organic matter in the fire clay will evaporate and decompose, which is prone to water flow, which can affect the normal work of aluminum alloy. At the same time, the fire clay expands after being heated, which can cause deformation or even cracking of the structure outside the aluminum alloy cable core, which is not conducive to the fire resistance of the cable. SUMMARY

[0004] The technical problem to be solved by the utility model is that in the prior art, the water produced by the fire clay in the cable after being heated exists the risk of contacting the aluminum alloy conductor, and the expansion of the fire clay can cause deformation or cracking of the internal structure, and the fire resistance effect needs to be improved. Based on this, the utility model provides a fireproof high-temperature-resistant aluminum alloy cable.

[0005] The technical scheme adopted by the utility model to solve the technical problem is: a fireproof high-temperature-resistant aluminum alloy cable, comprising a plurality of cable core structures, a filling layer is arranged outside the plurality of cable core structures, an inner lining layer is arranged outside the filling layer, a water-blocking layer is arranged outside the inner lining layer, a fire clay layer is arranged outside the water-blocking layer, a buffer layer is arranged outside the fire clay layer, a ceramicized silicone rubber layer is arranged outside the buffer layer, and a sheath layer is arranged outside the ceramicized silicone rubber layer.

[0006] Further, the buffer layer is made of rubber material.

[0007] Further, the water-blocking layer is a water-blocking glue.

[0008] Further, the sheath layer is made of polyvinyl chloride material.

[0009] Further, the outer surface of the sheath layer is coated with a fireproof coating.

[0010] Further, the cable core structure comprises an aluminum alloy conductor and an insulation layer, and the insulation layer is arranged outside the aluminum alloy conductor.

[0011] Further, the filling layer is made of silica gel material.

[0012] Further, the inner lining layer is made of PVC material.

[0013] The utility model discloses a kind of fireproof high-temperature-resistant aluminum alloy cables, under the action of high temperature, water is generated and heated expansion in fire clay layer, water is blocked by water-blocking layer located inside, to avoid the situation that cable core structure is contacted with water, prolongs the normal working time of cable when fire occurs.And the buffer layer located outside can be deformed under the extrusion effect of fire clay, to prevent fire clay layer from expanding and pressing porcelainized silicone rubber layer outward and water-blocking layer inward, sufficiently guarantee that water-blocking layer and porcelainized silicone rubber layer play water-blocking, fireproof role, the fireproof performance of cable is greatly improved by the effect of fire clay layer and porcelainized silicone rubber layer inside and outside. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with drawing and embodiment.

[0015] Figure 1 It is the structure schematic diagram of the fireproof high-temperature-resistant aluminum alloy cable of the utility model.

[0016] In the drawing: 1, cable core structure, 11, aluminum alloy conductor, 12, insulation layer, 2, filling layer, 3, inner lining layer, 4, water-blocking layer, 5, fire clay layer, 6, buffer layer, 7, porcelainized silicone rubber layer, 8, sheath layer, 81, fireproof coating. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with drawing and embodiment.

[0018] Please refer to Figure 1The utility model provides a kind of fireproof high temperature resistant aluminium alloy cable, including multiple cable core structures 1, the outside of multiple cable core structures 1 is provided with filling layer 2, the outside of filling layer 2 is provided with inner liner 3, the outside of inner liner 3 is provided with water barrier layer 4, the outside of water barrier layer 4 is provided with fire clay layer 5, the outside of fire clay layer 5 is provided with buffer layer 6, the outside of buffer layer 6 is provided with ceramic silicon rubber layer 7, the outside of ceramic silicon rubber layer 7 is provided with sheath layer 8.

[0019] The fireproof high temperature resistant aluminium alloy cable of the utility model, ceramic silicon rubber layer 7 is soft and has elasticity under normal temperature state, can guarantee that cable is normally bent, when fire occurs in the environment where cable is laid, ceramic silicon rubber layer 7 will be hardened under the action of high temperature, form hard ceramic shell, so that the material has good fire resistance, heat insulation and impact resistance.

[0020] Fire clay in fire clay layer 5 is a flexible fire-retardant material under normal state, can guarantee that cable is normally bent, and when fire occurs in surrounding environment, fire clay will expand rapidly when preheating, form dense heat insulation layer, so as to block flame spread and delay heat transfer, to improve cable fire resistance.

[0021] Under extreme high temperature environment, fire clay will appear water flow condition, at this time, water barrier layer 4 arranged in the inner side of fire clay layer 5 can block water through water barrier layer 4, so as to avoid the contact between cable core structure 1 and water, prolong the normal working time of cable when fire occurs. Meanwhile, fire clay will expand under high temperature, at this time, buffer layer 6 will deform under the extrusion of fire clay, the deformation of buffer layer 6 can prevent fire clay layer 5 from pressing ceramic silicon rubber layer 7 outward and water barrier layer 4 inward when expanding, so as to guarantee the integrity of water barrier layer 4 and ceramic silicon rubber layer 7 structure, fully guarantee the water blocking and fire resistance of water barrier layer 4 and ceramic silicon rubber layer 7.

[0022] In the embodiment, buffer layer 6 is made of rubber material, and rubber has good elasticity and softness, and the shock absorption effect is outstanding, which can enhance the impact resistance and pressure resistance of cable. In addition, after heating, the hardness of rubber further decreases, so that timely deformation can be made according to the expansion of fire clay layer 5 to adapt to the volume change of fireproof layer 5 when heated.

[0023] As a preferred embodiment, water barrier layer 4 is water-blocking glue, which is a kind of adhesive with waterproof function, which can effectively prevent water generated when fire clay layer 5 is subjected to extreme high temperature from penetrating into water barrier layer 4.

[0024] In the embodiment, the sheath layer 8 is made of polyvinyl chloride material, which has good mechanical strength and chemical stability, so that the sheath layer 8 is not easily damaged. Meanwhile, the material also has certain fireproof performance, which improves the fire resistance of the sheath layer 8.

[0025] Further, the outer surface of the sheath layer 8 is coated with a fireproof coating 81 to further improve the fireproof and high temperature resistance of the cable. The fireproof coating 81 can be silicone fireproof paint, polyurethane fireproof paint or alkyd resin fireproof paint, which is not limited here.

[0026] The cable core structure 1 includes an aluminum alloy conductor 11 and an insulation layer 12 arranged outside the aluminum alloy conductor 11, and the insulation layer 12 is made of silica gel material. In the embodiment, the cable core structure 1 has four and is uniformly distributed in the circumferential direction.

[0027] The filling layer 2 is made of silica gel material, which has stable chemical properties, heat resistance and cold resistance, can effectively protect the cable core structure 1, and can buffer vibration and support load.

[0028] The inner lining layer 3 is made of PVC material to enhance the insulation thickness and strength, and can protect the internal cable core structure 1 from mechanical damage under the premise of good insulation effect.

[0029] Based on the above ideal embodiments of the present application, the relevant personnel can make various changes and modifications without deviating from the scope of the present application according to the above description. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A fire resistant high temperature resistant aluminum alloy cable, characterized by: The cable core structure comprises a plurality of cable core structures, the outer part of the plurality of cable core structures is provided with a filling layer, the outer part of the filling layer is provided with an inner lining layer, the outer part of the inner lining layer is provided with a water blocking layer, the outer part of the water blocking layer is provided with a fire clay layer, the outer part of the fire clay layer is provided with a buffer layer, the outer part of the buffer layer is provided with a ceramicized silicone rubber layer, and the outer part of the ceramicized silicone rubber layer is provided with a sheath layer.

2. The fire resistant high temperature resistant aluminum alloy electrical cable of claim 1, wherein: The buffer layer is made of rubber material.

3. The fire resistant high temperature resistant aluminum alloy electrical cable of claim 1, wherein: The water blocking layer is water blocking glue.

4. The fire resistant high temperature resistant aluminum alloy electrical cable of claim 1, wherein: The sheath layer is made of polyvinyl chloride material.

5. The fire resistant high temperature resistant aluminum alloy electrical cable of claim 4, wherein: The outer surface of the sheath layer is coated with a fireproof coating.

6. The fire resistant high temperature resistant aluminum alloy electrical cable of any one of claims 1-5, wherein: The cable core structure comprises an aluminum alloy conductor and an insulating layer arranged outside the aluminum alloy conductor.

7. The fire resistant high temperature resistant aluminum alloy electrical cable of any one of claims 1-5, wherein: The filling layer is made of silica gel material.

8. The fire resistant high temperature resistant aluminum alloy electrical cable of any one of claims 1-5, wherein: The inner lining layer is made of PVC material.

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