CN213339713U - High fire resistance aluminum alloy cable - Google Patents

Abstract

The utility model discloses a high fire resistance aluminum alloy cable, including aluminum alloy wire bundle structure, elastic buffer stick and strap interlocking armor, aluminum alloy wire bundle structure and elastic buffer stick are all fixed and are provided with a plurality of, a plurality of aluminum alloy wire bundle structure and elastic buffer stick closely laminate inside strap interlocking armor, the inside fixed parcel of strap interlocking armor has the protective sheath, protective sheath internal fixation parcel has first fire prevention inner liner, the inside gap with aluminum alloy wire bundle structure and elastic buffer stick of first fire prevention inner liner is fixed and is provided with the filler, aluminum alloy wire bundle structure comprises five layers of structures. The high-fire-resistance aluminum alloy cable is simple and reasonable in structure, novel in design, excellent in performance of aluminum alloy conductor cables, capable of well replacing copper conductor cables, and capable of solving the problems that an electrician pure aluminum conductor is easy to oxidize, poor in creep resistance and the like.

Description

High fire resistance aluminum alloy cable

Technical Field

The utility model relates to the technical field of cables, specifically be a high fire resistance aluminum alloy cable.

Background

The aluminum alloy power cable is a novel material power cable which takes AA8030 series aluminum alloy materials as conductors and adopts advanced technologies such as a special roll forming type line stranding production process, annealing treatment and the like. The alloy power cable makes up the defects of the conventional pure aluminum cable, improves the bending property, creep resistance, corrosion resistance and the like greatly although the conductivity of the cable is not improved, can ensure that the cable keeps stable continuous performance when overloaded and overheated for a long time, can improve the conductivity and high temperature resistance of the aluminum alloy cable greatly by adopting the AA-8030 series aluminum alloy conductor, and solves the problems of pure aluminum conductor, creep deformation and the like. The conductivity of the aluminum alloy is 61.8% of the most common reference material copper IACS, and the current carrying capacity is 79% of the copper, which is better than the pure aluminum standard. But the actual weight of the aluminum alloy is about one-third that of copper in the same volume. Thus, the weight of an aluminum alloy cable is about half that of a copper cable at the same ampacity. The aluminum alloy cable is adopted to replace a copper cable, so that the weight of the cable can be reduced, the installation cost is reduced, the abrasion of equipment and the cable is reduced, and the installation work is easier.

For buildings, fire safety is the most important, most concerned and the first problem to be solved. At present, in some large and medium-sized cities, public buildings, high-rise buildings and super-huge buildings are definitely required to adopt environment-friendly flame-retardant and fire-resistant cables so as to prevent the normal power supply of a power supply line within a preset time in case of fire and avoid generating toxic and harmful gases due to combustion. Therefore, we improve the method and propose an aluminum alloy cable with high fire resistance.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a high fire-resistant aluminum alloy cable, including aluminum alloy wire bundle structure, elastic buffer stick and strap interlocking armor, aluminum alloy wire bundle structure and elastic buffer stick are all fixed and are provided with a plurality of, a plurality of aluminum alloy wire bundle structure and elastic buffer stick closely laminate inside strap interlocking armor, the inside fixed parcel of strap interlocking armor has the protection sheath, the inside fixed parcel of protection sheath has first fire prevention inner liner, the inside gap with aluminum alloy wire bundle structure and elastic buffer stick of first fire prevention inner liner is fixed and is provided with the filler, aluminum alloy wire bundle structure comprises five layers of structures, aluminum alloy wire bundle structure has aluminum alloy conductor, conductor insulation layer, conductor insulation shielding layer, second fire prevention inner liner and metal shielding layer from inside to outside in proper order.

As an optimal technical scheme of the utility model, strap interlocking armor adopts the interlocking armor of hasp formula in the aluminum alloy area, aluminum alloy wire bundle structure, elastic buffer stick stranding arrangement adopt symmetrical balanced structure.

As an optimal technical scheme of the utility model, the elastic buffer stick adopts CPUR polyester type polyurethane material, the excellent diameter of elastic buffer is less than aluminum alloy wire bundle structure diameter.

As an optimal technical scheme of the utility model, the protective sheath layer is the crowded package restrictive coating of the fire-retardant low smoke and zero halogen polyolefin of environment-friendly, protective sheath layer thickness is 1.5mm-2.0mm, the surface spraying of first fire prevention inner liner and second fire prevention inner liner has solvent based coating that chlorinated rubber, paraffin and multiple fire prevention additive constitute.

As an optimized technical scheme of the utility model, filler polypropylene net tearing fiber rope, glass fiber rope or rock wool rope material constitute and fill.

As an optimal technical scheme of the utility model, conductor insulation layer and conductor insulation shielding layer adopt the preparation of semiconductor conductive rubber material to form, conductor insulation layer and conductor insulation shielding layer's thickness is 1.2mm-1.5 mm.

As an optimal technical scheme of the utility model, the metal shielding layer is the copper strips around covering or the copper wire is dredged around adding the copper strips and wraps the structure, the metal shielding layer thickness is 1.5-2.0 mm.

The utility model has the advantages that: this kind of high fire resistance aluminum alloy cable, aluminum alloy conductor cable excellent performance, replacement copper conductor cable that can be better, and solve electrician's pure aluminum conductor easy oxidation, the poor scheduling problem of creep resistance performance, and material cost is lower, economic performance is good, through adopting the netted tear fiber rope of polypropylene with the stopping, alkali-free glass fiber rope or dustless rock wool rope material, it does not absorb moisture to have, it is nontoxic, gentle light and rich in elasticity, the pulling force is strong, characteristics such as acid-resistant, protect aluminum alloy conductor bundle structure simultaneously, through insulating conductor layer, multilayer settings such as insulating conductor shielding layer and second fire prevention inner liner, reach the ageing condition that can not take place to lead to because of external environment in long-time use, improve product life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of an aluminum alloy cable with high fire resistance according to the present invention;

fig. 2 is a cross-sectional view of an aluminum alloy wire bundle structure of the aluminum alloy cable with high fire resistance of the present invention.

In the figure: 1. an aluminum alloy wire harness structure; 101. an aluminum alloy conductor; 102. a conductor insulation layer; 103. a conductor insulation shield layer; 104. a second fire resistant inner liner layer; 105. a metal shielding layer; 2. an elastic buffer rod; 3. a metallic interlocking armor layer; 4. a protective jacket layer; 5. a first fire resistant inner liner layer; 6. and (4) filling materials.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-2, the utility model relates to a high fire resistance aluminum alloy cable, including aluminum alloy wire bundle structure 1, elastic buffer stick 2 and strap interlocking armor 3, a serial communication port, aluminum alloy wire bundle structure 1 and elastic buffer stick 2 are all fixed and are provided with a plurality of, a plurality of aluminum alloy wire bundle structure 1 and elastic buffer stick 2 closely laminate inside strap interlocking armor 3, strap interlocking armor 3 inside is fixed the parcel has protective sheath 4, protective sheath 4 inside is fixed the parcel has first fire prevention inner liner 5, inside and aluminum alloy wire bundle structure 1 and the gap of elastic buffer stick 2 of first fire prevention inner liner 5 are fixed and are provided with filler 6, aluminum alloy wire bundle structure 1 comprises five-layer structure, aluminum alloy wire bundle structure 1 has aluminum alloy conductor 101 from inside to outside in proper order, conductor insulating layer 102, conductor insulating shield 103, A second fire resistant lining layer 104 and a metal shielding layer 105.

The metal belt interlocking armor layer 3 adopts aluminum alloy in-band buckle type interlocking armor, and the aluminum alloy wire bundle structure 1 and the elastic buffer rod 2 are arranged in a cabling mode to adopt a symmetrical balance structure.

Wherein, elasticity buffer stick 2 adopts CPUR polyester type polyurethane material, and elasticity buffer stick 2 diameter is less than 1 diameter of aluminum alloy wire bundle structure.

Wherein, protective sheath layer 4 is the crowded package restrictive coating of fire-retardant low smoke and zero halogen polyolefin of environment-friendly, and protective sheath layer 4 thickness is 1.5mm-2.0mm, and first fire prevention inner liner 5 and the surface spraying of second fire prevention inner liner 104 have chlorinated rubber, solvent type coating that paraffin and multiple fire prevention additive constitute.

Wherein, the filler 6 is made of polypropylene reticular tearing fiber rope, glass fiber rope or rock wool rope material.

The conductor insulating layer 102 and the conductor insulating shielding layer 103 are made of semiconductor conductive rubber, and the thicknesses of the conductor insulating layer 102 and the conductor insulating shielding layer 103 are both 1.2mm-1.5 mm.

Wherein the metal shielding layer 105 is a copper strip wrapping layer or a structure of loose copper wire winding and copper strip wrapping, and the thickness of the metal shielding layer 105 is 1.5-2.0 mm.

The utility model discloses high fire resistance aluminum alloy cable, aluminum alloy conductor cable excellent performance, replacement copper conductor cable that can be better to solve electrician's pure aluminum conductor easy oxidation, creep resistance can poor scheduling problem, material cost is lower moreover, economic performance is good

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a high fire resistance aluminum alloy cable, includes aluminum alloy wire bundle structure (1), elastic buffer stick (2) and strap interlocking armor (3), its characterized in that, aluminum alloy wire bundle structure (1) and elastic buffer stick (2) are all fixed and are provided with a plurality of, a plurality of aluminum alloy wire bundle structure (1) and elastic buffer stick (2) closely laminate inside strap interlocking armor (3), strap interlocking armor (3) inside is fixed the parcel has protection jacket layer (4), protection jacket layer (4) inside is fixed the parcel has first fire prevention inner liner (5), inside and aluminum alloy wire bundle structure (1) and the gap of elastic buffer stick (2) are fixed and are provided with filler (6) of first fire prevention inner liner (5), aluminum alloy wire bundle structure (1) comprises five layers of structures, the aluminum alloy wire bundle structure (1) is sequentially provided with an aluminum alloy conductor (101), a conductor insulating layer (102), a conductor insulating shielding layer (103), a second fireproof lining layer (104) and a metal shielding layer (105) from inside to outside.

2. The aluminum alloy cable with high fire resistance as claimed in claim 1, wherein the metal tape interlocking armor layer (3) adopts aluminum alloy in-band buckle type interlocking armor, and the aluminum alloy wire bundle structure (1) and the elastic buffer rod (2) are arranged in a cabling way by adopting a symmetrical balance structure.

3. The aluminum alloy cable with high fire resistance as claimed in claim 1, wherein the elastic buffer rod (2) is made of CPUR polyester polyurethane, and the diameter of the elastic buffer rod (2) is smaller than that of the aluminum alloy wire bundle structure (1).

4. The aluminum alloy cable with high fire resistance as claimed in claim 1, wherein the protective sheath layer (4) is an environment-friendly flame-retardant low-smoke halogen-free polyolefin extrusion-coated sheath layer, the thickness of the protective sheath layer (4) is 1.5mm-2.0mm, and the surfaces of the first fireproof lining layer (5) and the second fireproof lining layer (104) are sprayed with solvent-based paint consisting of chlorinated rubber, paraffin and various fireproof additives.

5. A high fire resistance aluminium alloy cable according to claim 1, wherein the filler (6) is a polypropylene mesh ripcord, glass fiber rope or rock wool material.

6. The aluminum alloy cable with high fire resistance as claimed in claim 1, wherein the conductor insulation layer (102) and the conductor insulation shielding layer (103) are made of a semiconductor conductive rubber material, and the thickness of each of the conductor insulation layer (102) and the conductor insulation shielding layer (103) is 1.2mm-1.5 mm.

7. The aluminum alloy cable with high fire resistance as claimed in claim 1, wherein the metal shielding layer (105) is a copper tape wrapping layer or a structure of copper wire loose winding and copper tape wrapping, and the thickness of the metal shielding layer (105) is 1.5-2.0 mm.

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