CN202615841U - High-strength intrinsically safe computer shielded cable for tension-resistant conductor movement - Google Patents

Abstract

The utility model discloses a high-strength intrinsically safe computer shielded cable for tension-resistant conductor movement, which comprises a plurality of conductors; an insulating layer is arranged outside each conductor; another insulating layer is arranged outside the insulating layer; a cabling and cable core wrapping layer is arranged outside the insulating layer; a drain wire is arranged outside the cabling and cable core wrapping layer; a sub-shielding layer is arranged outside the drain wire; a total shielding layer is arranged outside the sub-shielding layer; and a sheath layer is extruded outside the total shielding layer. The high-strength intrinsically safe computer shielded cable disclosed by the utility model is simple in structure and convenient in manufacture, and can reduce the outer diameter of the cable, save space, reduce production cost of enterprises, improve the qualified rate of products, and improve the production efficiency of enterprises.

Description

A high-strength intrinsically safe computer shielded cable for tensile conductor movement

technical field

The utility model relates to the field of computer shielding cables, in particular to a high-strength intrinsically safe computer shielding cable for tensile conductor movement.

Background technique

With the continuous development of society, users have higher and higher requirements for cable performance, and the requirements for mobile cables are also higher and higher. If the cable does not have good flexibility and excellent tensile properties, Then it will greatly affect the service life of the wire and cable. At present, there are many insulation and sheath materials suitable for mobile cables in China, and most of the tensile structures are placed on both sides of the round cable or flat cable. When the equipment is installed, the reinforced tensile steel wire is connected to the required on the computer control system. At present, there are quite a lot of computer control systems without devices for connecting tensile steel wires, and some computer control systems have too many connecting wires. At the same time, due to the increase of the tensile structure of the cables, the outer diameter of the cables has also increased a lot, occupying In addition, when the cable is used in the field, the temperature resistance requirements of the cable are also very high. Our tests show that ordinary mobile cables cannot work at -30°C, but this kind of cable can be used in the field. Long-term use within the temperature range of -60°C to 180°C. In addition, more and more users now have more and more strict explosion-proof requirements for cables, so the production of intrinsically safe cables is also inevitable.

The utility model adopts the conductor and the reinforced tensile thin steel wire to be twisted together and wrapped for insulation, and then twisted, taped, aluminum foil sub-shield, cabled, taped, aluminum foil general shielded, wrapped sheath, through the conductor and the tensile wire Change, the conventional conductor itself becomes a tensile conductor, and the outer diameter of the cable is also reduced a lot, so that the user's computer control system does not need to connect a tensile device, and it also saves the space of the computer control system, so the user does not need to The computer control system of the equipment was changed due to the tensile performance of the cables and the limited space of the electrical cabinet.

Contents of the invention

In order to overcome the above defects, the utility model provides a high-strength intrinsically safe computer-shielded cable for tensile conductor movement, which can reduce the outer diameter of the cable, save space, reduce the production cost of the enterprise, improve the product qualification rate, and improve the production efficiency of the enterprise.

The technical scheme adopted by the utility model in order to solve the technical problem is: the utility model relates to a high-strength intrinsically safe computer shielded cable for tensile conductor movement, which includes multiple conductors, and an insulating layer is arranged on the outside of the multiple conductors. There is an insulating layer outside the insulating layer, and there are cabling and cable core wrapping outside the insulating layer. There are drain wires outside the cabling and cable core wrapping. There is a general shielding layer outside the layer, and a sheath layer is extruded outside the general shielding layer.

As a further improvement of the utility model, the conductor (1) is formed by twisting a bundle of copper wires drawn from multiple annealed oxygen-free copper rods, and the general cross-section is 0.75-2.5m㎡.

As a further improvement of the utility model, the sub-shielding layer (6) and the overall shielding layer (7) are shielded by wrapping aluminum foil, and the average lapping rate of wrapping is not less than 15%.

The beneficial effects of the utility model are: the outer diameter of the cable can be reduced, the space can be saved, the production cost of the enterprise can be reduced, the pass rate of products can be improved, and the production efficiency of the enterprise can be improved.

Description of drawings

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

Marked in the figure: 1—conductor, 2—insulation layer, 3—insulation layer, 4—cable and core wrapping layer, 5—drain wire, 6—sub-shielding layer, 7—general shielding layer, 8—sheath layer.

Detailed ways

In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with the embodiments and accompanying drawings. The embodiment is only used to explain the utility model, and does not constitute a limitation to the protection scope of the utility model.

Figure 1 shows an embodiment of a high-strength intrinsically safe computer shielded cable for tensile conductor movement of the present invention: it includes a plurality of conductors 1, an insulating layer 2 is provided outside the plurality of conductors 1, and an insulating layer 2 is arranged outside the insulating layer 2. There is an insulating layer 3, and outside the insulating layer 3, there are cabling and cable core wrapping layers 4, and there are drain wires 6 outside the cabling and cable core wrapping layers 4, and a sub-shielding layer 6 is arranged outside the drain wire 5. There is a general shielding layer 7 outside the sub-shielding layer 6, and a sheath layer 8 is extruded outside the general shielding layer 7. The utility model has a simple structure and is easy to manufacture, which can reduce the outer diameter of the cable, save space, reduce the production cost of the enterprise, and improve the product quality. Pass rate, improve enterprise production efficiency.

Claims (3)

1. A high-strength intrinsically safe computer shielded cable for tensile conductor movement, including multiple conductors (1), characterized in that: an insulating layer (2) is provided on the outside of the multiple conductors (1). An insulating layer (3) is arranged outside the insulating layer (2), and there is a cabling and a cable core wrapping layer (4) outside the insulating layer (3), and a cable and a cable core wrapping layer (4) are arranged outside the insulating layer (3). ) has a drain wire (5) outside the drain wire (5), a sub-shield layer (6) is arranged outside the sub-shield layer (6), and a general shield layer (7) is placed outside the sub-shield layer (6). The layer (7) is extruded to cover the sheath layer (8). 2. A high-strength intrinsically safe computer shielded cable for tensile conductor movement according to claim 1, characterized in that: the conductor (1) is a copper wire strand drawn by a plurality of annealed oxygen-free copper rods Composed of synthetic beams, the general cross-section is 0.75-2.5m㎡. 3. A high-strength intrinsically safe computer shielded cable for tensile conductor movement according to claim 1, characterized in that: the individual shielding layer (6) and the overall shielding layer (7) are shielded by wrapping aluminum foil, and the average The covering rate of wrapping is not less than 15%.

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