CN201594404U - Rated voltage 450/750V Naite low temperature rubber sheath flexible cable - Google Patents

Abstract

The utility model is a flexible cable with a rated voltage of 450/750V and low temperature resistance rubber sheath. It wraps the insulating layer A on the soft copper conductor and then evenly extrudes the insulating layer to form the core. Multiple wire cores are twisted into a cable core. Wrap insulation layer B around the outside of the cable core. The space between the isolation layer B and the wire core is filled with a filling layer. A layer of outer sheath is extruded outside the isolation layer B. The insulating layer is made of ethylene-propylene rubber material with high electrical performance and low temperature resistance of -70°C, which significantly improves the electrical performance and low temperature resistance of the cable. The outer sheath is made of rubber material resistant to low temperature of -70°C, which further improves the low temperature resistance of the cable. Both the isolation layer A and the isolation layer B are polyester tapes or reinforced non-woven fabric tapes. The utility model provides a rubber-sheathed soft cable with a rated voltage of 450/750V, which has high electrical performance, high flexibility, and can withstand the ultra-low temperature of -70°C.

Description

Rated voltage 450/750V Naite low temperature rubber sheath flexible cable

technical field

The utility model relates to a flexible cable with a rated voltage of 450/750V and low temperature resistant rubber sheath, which belongs to the technical field of electric wires and cables.

Background technique

At present, the low temperature resistance of general rubber-sheathed cables can only reach -35°C, which cannot meet the requirements for use under lower temperature conditions. For example, when used at -40°C, the cables are prone to hardening and cannot be used normally, and some may even become embrittled, which seriously affects the user's work under such low temperature conditions.

Contents of the invention

The purpose of the utility model is to provide a rubber-sheathed soft cable with a rated voltage of 450/750V, which has high electrical performance, high flexibility, and can withstand low temperatures of -70°C.

The technical scheme of the utility model is: a kind of rated voltage 450/750V resistance low temperature rubber sheath flexible cable. It consists of soft copper conductor, isolation layer A, insulation layer, filling layer, isolation layer B and outer sheath. Wrap the isolation layer A on the soft copper conductor and then evenly extrude the insulation layer to form the wire core. Multiple wire cores are twisted into a cable core. Wrap insulation layer B around the outside of the cable core. Fill the space between the isolation layer B and the wire core with a filling layer. A layer of outer sheath is extruded outside the isolation layer B.

The insulating layer is made of ethylene-propylene rubber material with high electrical performance and low temperature resistance of -70°C, which significantly improves the electrical performance and low temperature resistance of the cable.

The outer sheath is made of rubber material resistant to low temperature of -70°C. The material further improves the low temperature resistance of the cable.

Both the isolation layer A and the isolation layer B are polyester tapes or reinforced non-woven fabric tapes.

The utility model has the advantage of providing a rubber-sheathed soft cable with a rated voltage of 450/750V and a high electrical performance, high flexibility, and the ability to withstand a very low temperature of -70°C.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

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

In the figure: 1. Annealed copper conductor, 2. Isolation layer A, 3. Insulation layer, 4. Wire core, 5. Filling layer, 6. Cable core, 7. Isolation layer B, 8. Outer sheath.

Detailed ways

The embodiment shown in Fig. 1 is as follows: on the surface of annealed copper conductor 1, wrap one deck polyester tape isolation layer A 2. A layer of insulating layer 3 of ethylene-propylene rubber material with high electrical performance and low temperature resistance of -70°C is uniformly extruded on the isolation layer A2 to form the wire core 4. Three wire cores 4 are twisted into a cable core 6 . Wrap the reinforced non-woven tape isolation layer B7 at the outside of the cable core 6. The filling layer 5 is filled in the space between the isolation layer B 7 and each core 4. Extrude a layer of rubber material outer sheath 8 resistant to low temperatures of -70°C on the outside of the isolation layer B7.

Claims (4)

1. anti-special low temperature rubber sleeve flexible cable of rated voltage 450/750V, it is made up of soft copper conductor, separator A, insulating barrier, packed layer, separator B and oversheath, it is characterized in that: even again extruded insulation layer is formed core behind wrapped separator A on the soft copper conductor, many cores are twisted into cable core, at the wrapped separator B in the cable core outside, gap between separator B and core is filled with packed layer, extrudes one deck oversheath in the separator B outside.

2. the anti-special low temperature rubber sleeve flexible cable of a kind of rated voltage 450/750V according to claim 1 is characterized in that: described insulating barrier adopts the ethylene-propylene rubber material of high electrical performance, ability-70 ℃ low temperature.

3. the anti-special low temperature rubber sleeve flexible cable of a kind of rated voltage 450/750V according to claim 1 is characterized in that: described oversheath adopts the rubber material of anti--70 ℃ of low temperature.

4. the anti-special low temperature rubber sleeve flexible cable of a kind of rated voltage 450/750V according to claim 1, it is characterized in that: described separator A and separator B all adopt polyester belt or reinforced nonwoven fabric belts.

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