CN201489890U

CN201489890U - Self load-bearing type low-voltage overhead insulated cable

Info

Publication number: CN201489890U
Application number: CN200920169217XU
Authority: CN
Inventors: 党飞; 王小仲; 党军; 黄陈丽; 李凌云; 阳建; 罗强
Original assignee: PIXIAN SANDY CABLE CO Ltd
Current assignee: PIXIAN SANDY CABLE CO Ltd
Priority date: 2009-08-19
Filing date: 2009-08-19
Publication date: 2010-05-26
Anticipated expiration: 2019-08-19

Abstract

The utility model provides a self load-bearing type low-voltage overhead insulated cable, which comprises an insulation layer, a conductor wire, and a load-bearing wire, wherein the insulation layer encompassed on the load-bearing wire is connected with that encompassed on the conductor wire through a connecting bar. The conductor wire and the load-bearing wire are fashioned from the employment of extrusion molding, the manufacturing technology is simple, the self load-bearing type low-voltage overhead cable with various specifications and models can be produced, and not only can a single core conductor cable be made, but also a multi-core conductor cable can be made. The utility model can improve the tensile strength of the cable, increase the span of the overhead cable, reduce the number of poles and towers, and save the cost. Since the load-bearing wire is arranged independently, the bending property of the cable is good, and the application range is enlarged.

Description

A kind of from bearing-type low pressure aerial insulated cable

Technical field

The utility model relates to a kind of cable, especially aerial insulated cable of electric power delivery usefulness.

Background technology

At present, according to the aerial insulated cable that national standard is produced, heart yearn has only aluminium core, copper core and aluminium alloy core, and 10KV aluminium core overhead insulated cable uses the most general, and weak point is that span is little, increases shaft tower quantity, the expense increase.If adopt the copper core overhead insulated cable, the lead unit mass is big, and sag is big, the cost height.If adopt the aluminium alloy core aerial insulated cable, manufacturing technology is not mature enough, and manufacturing process is loaded down with trivial details, the production cost height.Patent ZL200810136537.5, ZL03249215.4, ZL200820115956.6, disclosed aerial insulated cable, lifting-line are arranged on the center of multiply gummed conductor lines, have increased production process, and have influenced the bendability of cable.

The utility model content

It is a kind of from bearing-type low pressure aerial insulated cable that the utility model provides, and can remedy the defective that can not set up in the intensive environment in the nearer place of distance trees or house, enlarges the field of employment, reduces manufacturing cost and installation cost.

The technical solution of the utility model is: a kind of from bearing-type low pressure aerial insulated cable, and by insulating barrier, conductor lines, lifting-line constitutes, and the insulating barrier that wherein is coated on the lifting-line links to each other with insulating barrier on being coated on conductor lines by dowel.

Described lifting-line is sub-thread steel wire or multiply gummed steel wire.

Described conductor lines is single core conductor line or multiply gummed conductor lines.

Described conductor lines be distributed on lifting-line around, by insulating barrier and dowel each conductor lines and lifting-line are linked into an integrated entity, the quantity of conductor lines is two to five.

The utility model can improve the tensile strength of cable, increases span, the minimizing shaft tower of aerial cable, saves cost.Conductor lines, lifting-line be extrusion moulding simultaneously, and production technology is simple, can production plurality of specifications model from bearing-type low pressure aerial cable, both can make single core conductor cable, processing multi-core conductor cable also capable of being combined.Because lifting-line is provided with separately, the good bending property of cable has enlarged its field of employment.

Description of drawings

Fig. 1 is the utility model cross-sectional configuration schematic diagram;

Fig. 2 is the cross-sectional configuration schematic diagram of two conductor lines;

Fig. 3 is the cross-sectional configuration schematic diagram of three conductor lines;

Fig. 4 is the cross-sectional configuration schematic diagram of four conductor lines;

Fig. 5 is the cross-sectional configuration schematic diagram of five conductor lines.

Embodiment

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

As shown in Figure 1, the utility model provide from bearing-type low pressure aerial insulated cable, its structure is: the insulating barrier 3 that is coated on the lifting-line 1 links to each other with insulating barrier 3 on being coated on conductor lines 2 by dowel 4.

During production, at first, select suitable lifting-line 1 and conductor lines 2, on plastic extruding machine, carry out co-extrusion coated insulation layer 3 then according to the use occasion demand of cable, but both output uniconductor line from bearing-type low pressure aerial insulated cable.

Shown in Fig. 2,3,4,5, change the mould on the plastic extruding machine as required, increase the quantity of conductor lines 2, but both output different conductor line radical from bearing-type low pressure aerial cable.

Press the foregoing description, in the production technology that does not change former conductor lines 2, just can produce the uniconductor line of all size, model or many conductor lines from bearing-type low pressure aerial cable series of products, satisfy different user demands.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1. one kind from bearing-type low pressure aerial insulated cable, comprises insulating barrier (3), and conductor lines (2) is characterized in that: the insulating barrier (3) that is coated on the lifting-line (1) is connected with insulating barrier (3) on being coated on conductor lines (2) by dowel (4).

2. according to claim 1 from bearing-type low pressure aerial insulated cable, it is characterized in that: described lifting-line (1) is sub-thread steel wire or multiply gummed steel wire.

3. according to claim 1 from bearing-type low pressure aerial insulated cable, it is characterized in that: described conductor lines (2) is single core conductor line or multiply gummed conductor lines.

4. according to claim 1 from bearing-type low pressure aerial insulated cable, it is characterized in that: uniform 2～5 conductor lines (2) that are coated with insulating barrier (3) around the lifting-line that is coated with insulating barrier (3) (1) are linked into an integrated entity each conductor lines (2) and lifting-line (1) by insulating barrier (3) and dowel (4).