CN201886821U - Low-voltage five-core power cable of corrugated conductor - Google Patents

Abstract

The utility model discloses a low-voltage five-core power cable with a corrugated conductor. The inside of the cable is five copper core conductors coated with a PVC insulating layer, and the outer layer is sequentially wrapped with a wrapping layer and a flame-retardant PVC outer sheath from the inside to the outside. , characterized in that four of the copper core conductors are corrugated copper core conductors in cross section, and they jointly surround another circular copper core conductor at the center. The low-voltage five-core power cable with corrugated conductors of the utility model changes the shape of the conductors to make the conductors (main cores) more tightly combined on the premise of ensuring that all performances of the product comply with the national standard GB/T12706-2008. , The outer diameter of the finished product is reduced, so the difficulty of packaging, transportation and laying is reduced.

Description

Corrugated conductor low-voltage five-core power cable

technical field

The utility model relates to a power cable, in particular to a low-voltage five-core power cable with a corrugated conductor.

Background technique

In the power cables that meet the national standard GB/T12706-2008, for five-core cables with a nominal cross-section of conductors (main cores) ≥ ^70mm2 , it is usually used to gather five circular conductors coated with an insulating layer and then wrap them outside. The disadvantage of the production method of cladding, insulating layer, etc. is that the gap between the conductors is large and the tightness is poor, resulting in an increase in the outer diameter of the finished product, which increases the difficulty of packaging, transportation and laying.

Utility model content

The purpose of this utility model is to provide a low-voltage five-core power cable with a corrugated conductor. By changing the shape of the conductor, it can make the conductor (main core) The combination between each other is tighter, and the outer diameter of the finished product is reduced.

Concrete technical scheme of the present utility model is:

A low-voltage five-core power cable with a corrugated conductor, the inside of which is five copper core conductors coated with a PVC insulation layer, and the outer layer is sequentially wrapped with a wrapping layer and a flame-retardant PVC outer sheath from the inside to the outside, and is characterized in that the copper Four of the core conductors are copper core conductors with a corrugated cross section, and they jointly surround another circular copper core conductor at the center.

In the low-voltage five-core power cable with corrugated conductors of the utility model, since the cross-sectional shape of the four copper core conductors is changed into a corrugated shape, they just form a hollow circular surface, which are closely combined with each other, and another circular Shaped copper core conductors are tightly wrapped around the center, so the gaps between the five copper core conductors are extremely small, and the nominal cross-section (≥70mm ² ) of the copper core conductor (main core) is kept unchanged, which is greatly reduced. The outer diameter of the finished product is improved, which reduces the difficulty of packaging, transportation and laying, and all performances comply with the national standard GB/T12706-2008.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

Figure 1 is a schematic diagram of the composition of the utility model.

In the picture:

1. Copper core conductor; 2. PVC insulation layer; 3. Wrapping layer; 4. Flame-retardant PVC outer sheath.

Detailed ways

As shown in Figure 1, an embodiment of the low-voltage five-core power cable with corrugated conductors described in the present invention is provided, the inside of which is five copper core conductors 1 coated with a PVC insulating layer 2, and the outer layer is from the inside to the outside. The outside is wrapped with a wrapping layer 3 and a flame-retardant PVC outer sheath 4 in turn. It is characterized in that four of the copper core conductors 1 are corrugated copper core conductors 1 with a cross-sectional shape, and they jointly wrap the other one round The copper core conductor 1 surrounds the center. In the low-voltage five-core power cable with corrugated conductors in this embodiment, since the cross-sectional shape of the four copper core conductors 1 is changed into a corrugated shape, they just form a hollow circular surface together, which are tightly combined with each other, and another circular surface is formed. Shaped copper core conductors 1 are tightly surrounded in the center, so the gaps between the five copper core conductors 1 are extremely small, and the nominal cross section of the copper core conductors 1 (≥70mm ² ) is kept unchanged, greatly reducing The outer diameter of the finished product reduces the difficulty of packaging, transportation and laying, and all performances meet the national standard GB/T12706-2008.

Claims (1)

1. A low-voltage five-core power cable with corrugated conductors, the inside of which is five copper core conductors coated with a PVC insulating layer, and the outer layer is wrapped with a wrapping layer and a flame-retardant PVC outer sheath from the inside to the outside, and is characterized in that : Four of the copper core conductors are corrugated copper core conductors in cross section, and they jointly surround another circular copper core conductor at the center. the

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