CN2613032Y

CN2613032Y - Power line crossing insulation protective compensation component

Info

Publication number: CN2613032Y
Application number: CN 03221443
Authority: CN
Inventors: 冯迎春; 谢翠菊; 吴广恩
Original assignee: SUZHOU ZHONGXIN WEIYE NEW TECHNOLOGY DEVELOPMENT Co Ltd; Zhenjiang Power Supply Co of Jiangsu Electric Power Co
Current assignee: SUZHOU ZHONGXIN WEIYE NEW TECHNOLOGY DEVELOPMENT Co Ltd; Zhenjiang Power Supply Co of Jiangsu Electric Power Co
Priority date: 2003-04-25
Filing date: 2003-04-25
Publication date: 2004-04-21
Anticipated expiration: 2013-04-25

Abstract

The utility model relates to an electric power wire crossing protection reinforcing piece, which is applied in medium high pressure electric power wire and low pressure or weak electric power wire crossing time insulation, comprising an inner insulation layer orderly coated outside the electric power wire cable, a whole shape stuffing layer and a high strengthening insulation protection layer, wherein two ends of the reinforcing piece both have an insulation umbrella skirt, the inner insulation layer is organic insulating materials, the whole shape stuffing layer is insulation materials with hot melting, the high strengthening insulation protection layer is plate materials made of anti aging thermal shrinkage materials, which is coated on the outmost layer of the reinforcing piece, the mutually connected two edges are connected by a long stripe shaped connecting button. The utility model not only has fine insulation protection ability, but also has convenient construction and good sealing performance, which has a good protecting effect on the electric power wire cable itself.

Description

Power circuit scissors crossing insulating protection stiffener

Technical field

The utility model relates to a kind of power circuit scissors crossing insulating protection stiffener, the insulation when it is applied to medium and high voltage power line road and low pressure or the scissors crossing of light current circuit.

Background technology

At present, power circuit, particularly mesolow circuit scissors crossing safe distance is perplexing power supply enterprise inadequately for a long time, some power circuit adheres to specification when construction, but owing to the variation of circuit running environment or the reasons such as violation intrusion of other line facility, cause line pitch too near, low pressure or other light current circuit, initiation equipment and personal injury are scurried in the high-tension electricity discharge.Electric power enterprise often adopts following several method in order to solve the contradiction of circuit scissors crossing: transform to power circuit or by the infringement circuit (1).This is the scheme of thoroughly dealing with problems, but owing to reasons such as investment are big, power cut construction is difficult, involve many areas, often is difficult to realize; (2) take temporary preventive measure, use some insulating material, as thermoplastic material, mistake tree belt etc. circuit scissors crossing section is carried out the insulating protection reinforcement, can play temporary transient effect, but owing to adopt material mixed and disorderly, lack of standardization, its insulation level is difficult to be guaranteed, and interface does not generally have effective waterproof measure in addition, very easily cause inner lead corroded by rain, dew and corrosion is serious, long-time use meeting will make local cable heating impaired.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of power circuit scissors crossing insulating protection stiffener of special use is provided, make it not only have the good insulation barrier propterty, simultaneously its easy construction, good airproof performance, electric power cable itself is also had protective action preferably.

Power circuit scissors crossing insulating protection stiffener of the present utility model includes the inner insulating layer that coats successively in the electric power cable periphery, shaping packed layer and high-strength insulation overcoat, an insulation full skirt is respectively arranged at the two ends of whole stiffener, described inner insulating layer is an insulating polymeric material, it is close to the electric power cable outer surface, described shaping packed layer is the insulating material with hot melt, it is filled in the inner insulating layer periphery, described high-strength insulation overcoat is the sheet material that a slice is made by the anti-aging material contracting with heat, it is coated on the outermost layer of stiffener, and its two edges that dock mutually connect by the junction button of a strip.There is a slot longitudinally described junction button inboard, and respectively there is the lengthways of rod of a projection at two edges that the high-strength insulation overcoat docks mutually, two ribs all are inserted in the slot of junction button, locking achieves a butt joint, the junction button outside at strip also has a plurality of horizontal notches in the compartment of terrain, to adapt to the diastrophic needs of cable certain limit.Described insulation full skirt is made up of mutual two involutory semi-rings, and its main body is covered by within above-mentioned each layer, and its canopy retaining is at the two ends of whole stiffener, to increase creepage distance.

The utility model is because the multilayer insulation reinforcement material that adopts different performance carries out insulating protection to the electric power cable of scissors crossing section, good insulation preformance not only, and have good waterproof sealing performance and higher outer intensity and ageing resistace, its construction simultaneously is also very convenient.

Description of drawings

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

Fig. 2 is a cross section structure schematic diagram of the present utility model;

Fig. 3 is an end face structure schematic diagram of the present utility model.

Embodiment

As shown in Figure 1 and Figure 2, power circuit scissors crossing insulating protection stiffener of the present utility model is a three-decker, be inner insulating layer 1, shaping packed layer 2 and high-strength insulation overcoat 3, they are coated on the periphery of the electric power cable 9 of scissors crossing section from inside to outside successively, an insulation full skirt 4 is respectively arranged at the two ends of whole stiffener, be used for increasing the creepage distance warp, the insulation full skirt is two structures (as shown in Figure 3) that semi-ring is involutory, so that install.

Its work progress is, at first the insulating polymeric material with band shape surrounds the electric power cable periphery as inner insulating layer 1, again the hot melt insulating material is coated on the inner insulating layer periphery as shaping packed layer 2, outermost layer coats with the sheet material of age inhibiting material contracting with heat again, and connect locking with junction button 5, constitute high-strength insulation overcoat 3, heat by blowing hot wind at last, the high-strength insulation overcoat of being made by material contracting with heat 3 after-contraction of being heated closely wraps up the each several part in it, also evenly is filled between inner insulating layer 1 and the high-strength insulation overcoat 3 after the shaping packed layer of being made by heat-fusible materials 2 is heated simultaneously.

There is a slot 6 longitudinally the junction button inboard, and respectively there is the lengthways of rod 7 of a projection at two edges that the high-strength insulation overcoat docks mutually, two ribs all are inserted in the slot 6 of junction button, locking (as Fig. 2) achieves a butt joint, junction button 5 outsides at strip also have as if a plurality of horizontal notches 8, to adapt to the diastrophic needs of cable certain limit the compartment of terrain.

Claims

1, power circuit scissors crossing insulating protection stiffener, it is characterized in that: it includes at peripheral inner insulating layer (1), shaping packed layer (2) and the high-strength insulation overcoat (3) that coats successively of electric power cable (9), and an insulation full skirt (4) is respectively arranged at the two ends of whole stiffener.

2, power circuit scissors crossing insulating protection stiffener according to claim 1, it is characterized in that: described inner insulating layer (1) is an insulating polymeric material, it is close to the electric power cable outer surface, the insulating material of described shaping packed layer (2) for having hot melt, it is filled in the inner insulating layer periphery, the sheet material that described high-strength insulation overcoat (3) is made by the anti-aging material contracting with heat for a slice, it is coated on the outermost layer of whole stiffener.

3, power circuit scissors crossing insulating protection stiffener according to claim 2 is characterized in that: two edges that described high-strength insulation overcoat (3) docks mutually connect by the junction button (5) of a strip.

4, power circuit scissors crossing insulating protection stiffener according to claim 3, it is characterized in that: there is a slot (6) longitudinally described junction button (5) inboard, and respectively there is the lengthways of rod (7) of a projection at two edges that the high-strength insulation overcoat docks mutually, two ribs all are inserted in the slot (6) of junction button, butt joint is fixing, also has a plurality of horizontal notches (8) in the compartment of terrain in junction button (5) outside of strip.

5, according to the described power circuit scissors crossing of one of claim 1～4 insulating protection stiffener, it is characterized in that: described insulation full skirt (4) is made up of mutual two involutory semi-rings, its main body is covered by within each layer insulating material, and its canopy retaining is at the two ends of whole stiffener.