CN202473308U - Acid and alkali-resistant oil-resistant ultraviolet-resistant moisture-proof environment-friendly type flat drag cable - Google Patents

Abstract

The utility model discloses an acid-base-resistant, oil-resistant, ultraviolet-resistant, moisture-proof and environment-friendly flat towing cable, which comprises a plurality of conductors, the stranded pitch diameter ratios of which are all 10-20, and the single wire diameter of the tinned copper wire is 0.2~0.5mm, the elongation at break of the single wire is not less than 15%, and several conductors are extruded with a modified low-smoke halogen-free silane cross-linked ethylene-propylene rubber insulation layer, which is wrapped between the conductor and the insulation layer of the cable A protective layer composed of a polyester tape. After wrapping the insulating layer, several conductors are respectively covered with a braiding layer. The braiding layer is braided with tinned copper wires to form a shielding layer. Several conductors wrapped in the shielding layer are placed in parallel to form a cable core. The cable core is extruded with an inner sheath layer and an outer sheath layer in turn, and an armor layer composed of galvanized steel tape is arranged between the inner sheath layer and the outer sheath layer, and the cross section of the cable is flat. The utility model has good flexibility, is convenient for cable laying and installation, improves the carrying capacity and overload capacity of the cable, and has strong dragging speed.

Description

An acid, alkali, oil, ultraviolet, moisture-proof, and environment-friendly flat towing cable

technical field

The utility model relates to the field of electric wires and cables, in particular to an acid, alkali, oil, ultraviolet, moisture-proof and environment-friendly flat trolley cable.

Background technique

Flat structure: there are copper conductors, insulating layers and sheaths inside. Traditional cables of this type are made of plastic or silicone rubber materials for the insulation layer and sheath layer, which often contain fluorine, chlorine, nitrogen, lead, cadmium, etc., and produce a large amount of smoke, dioxin, acid gas and other public hazards when burning .

At present, with the development of science and technology and the strengthening of environmental protection concepts, cable manufacturers are forced to replace traditional materials with materials that meet environmental protection requirements to manufacture environmentally friendly cables or so-called "clean cables". At the same time, with the development of my country's port terminals, power plants, steel mills, mines and petrochemical industries, a large number of comprehensive mechanical equipment have been introduced. Most of their power supplies integrate power, communication, and control. There are special requirements for acid and alkali resistance, oil resistance, ultraviolet resistance, moisture resistance, softness and environmental protection, and the safety of use is guaranteed. However, currently used materials are difficult to fully satisfy the above requirements at the same time. the

On the other hand, the structure of the traditional flat cable is not compact enough, so that the service life of the cable is relatively short, and the frequency of replacement is relatively high. the

Utility model content

The purpose of the utility model is to provide an acid, alkali, oil, ultraviolet, moisture-proof and environment-friendly flat tow cable, which is compact in structure and has the characteristics of acid and alkali resistance, oil resistance, ultraviolet resistance, moisture resistance, softness and environmental protection, so as to adapt to various harsh environments. environment, and can be environmentally safe.

The technical scheme of the utility model is as follows:

Acid, alkali, oil, ultraviolet, moisture-proof and environment-friendly flat tow cable, including several conductors, characterized in that: the several conductors are tinned copper wire bundle/strand structure, and the strand diameter of several conductors is The ratio is 10~20, the single wire diameter of the tinned copper wire is 0.2~0.5mm, and the elongation of the single wire is not less than 15%. The insulating layer of Ethylene Propylene Rubber is wrapped with a protective layer of polyester tape between the conductor and the insulating layer of the cable. After wrapping the insulating layer, several conductors are respectively covered with a braided layer, and the outer braided layer is tinned. Copper wires are braided to form a shielding layer, and several conductors wrapping the shielding layer are placed in parallel to form a cable core, and the modified low-smoke halogen-free nitrile compound is sequentially extruded outside the cable core to form an inner sheath layer and an outer sheath layer. There is an armor layer formed by wrapping galvanized steel strips between the inner sheath layer and the outer sheath layer, and the section of the cable is flat.

The acid-alkali-resistant, oil-resistant, UV-resistant, moisture-proof and environment-friendly flat tow cable is characterized in that: the braiding layer is made of tinned copper wire braiding. the

The acid-alkali-resistant, oil-resistant, ultraviolet-resistant, moisture-proof, and environment-friendly flat towing cable is characterized in that the number of the conductors is 2-48. the

Compared with the prior art, the beneficial effects of the utility model are reflected in:

1. The utility model has high flexibility, and the bending radius is not greater than 2 to 4 times the outer diameter of the cable, which is conducive to cable laying and installation;

2. The temperature resistance grade of the finished cable of the utility model reaches 90°C, which improves the carrying capacity and overload capacity of the cable;

3. The utility model has a strong towing speed, the speed is 300m/min;

4. The insulation in this utility model adopts environmentally friendly modified low-smoke halogen-free silane cross-linked ethylene-propylene rubber, and its advantages are: (1) ethylene-propylene rubber has good electrical properties, heat resistance and good mechanical properties; ( 2) Ethylene-propylene rubber has cold resistance, and the minimum temperature resistance can reach -70°C; (3) The modified low-smoke halogen-free silane cross-linked ethylene-propylene rubber material is the same as the XLPE process for processing plastics, and can be used on ordinary plastics. It can be processed on a type extruder without complicated vulcanization equipment, as long as it is cross-linked with warm water to achieve the purpose of vulcanization. And it has strong low-smoke, halogen-free environmental performance.

5. The sheath material in this utility model adopts modified low-smoke halogen-free nitrile compound, which meets the requirements of acid and alkali resistance, oil resistance, ultraviolet resistance, moisture resistance, softness, low smoke, and halogen-free;

6. The utility model is resistant to mineral oil and fuel oil, and its flame retardant oxygen index reaches 48.

Description of drawings

Fig. 1 is a schematic diagram of a 3-core structure of the present invention.

Fig. 2 is a schematic diagram of the 6-core structure of the present invention. the

Detailed ways

See Figure 1 and Figure 2:

Acid and alkali resistant, oil resistant, UV resistant, moisture-proof and environment-friendly flat towing cable, including several conductors 1, the several conductors 1 are tinned copper wire bundle/strand structure, and the stranding pitch ratio of several conductors 1 is 10 ~20, the single wire diameter of tinned copper wire is 0.2~0.5mm, the elongation of single wire is not less than 15%, and several conductors 1 are extruded with modified low-smoke halogen-free silane cross-linked ethylene-propylene rubber insulation Layer 2, a protective layer 3 composed of a polyester tape is wrapped between the conductor of the cable and the insulating layer 2. After wrapping the insulating layer 2, several conductors 1 are respectively covered with a braiding layer 4, and the outer braiding layer 4 is plated. Tin-copper wires are braided to form a shielding layer 5, and several conductors 1 wrapping the shielding layer 5 are placed in parallel to form a cable core, and the modified low-smoke halogen-free nitrile compound is sequentially extruded outside the cable core to form an inner sheath layer 6 and an outer sheath Layer 7, an armor layer 8 formed by wrapping galvanized steel strips between the inner sheath layer 6 and the outer sheath layer 7, and the section of the cable is flat.

The braiding layer 4 is braided with tinned copper wires. the

The number of conductors 1 is 2-48. the

Claims (3)

1. An acid, alkali, oil, ultraviolet, and moisture-proof environment-friendly flat tow cable, comprising several conductors, characterized in that: the several conductors are bundle twisted/strand twisted structures of tinned copper wires, and the several conductors The stranded pitch ratio is 10~20, the single wire diameter of the tinned copper wire is 0.2~0.5mm, and the elongation of the single wire at break is not less than 15%. The insulating layer of halogen-free silane cross-linked ethylene-propylene rubber is wrapped with a protective layer of polyester tape between the conductor and the insulating layer of the cable. After wrapping the insulating layer, several conductors are respectively covered with a braided layer. The shielding layer is formed by braiding tinned copper wires on the outside, and several conductors wrapped in the shielding layer are placed in parallel to form a cable core, and the modified low-smoke halogen-free nitrile compound is extruded sequentially outside the cable core to form an inner sheath layer and an outer sheath layer , between the inner sheath layer and the outer sheath layer, there is an armor layer composed of galvanized steel strip wrapped, and the cross section of the cable is flat. 2. The acid, alkali, oil, ultraviolet, moisture-proof and environment-friendly flat tow cable according to claim 1, characterized in that: the braiding layer is made of tinned copper wire braiding. 3. The acid, alkali, oil, ultraviolet, moisture-proof and environment-friendly flat mooring cable according to claim 1, characterized in that: the number of said conductors is 2-48.

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