CN201364751Y

CN201364751Y - 35KV aluminum tube bus insulated by polyolefin heat-shrinkable tube

Info

Publication number: CN201364751Y
Application number: CNU2009200928819U
Authority: CN
Inventors: 吕晓义; 何平; 苗润忠; 孙天勇; 施大伟
Original assignee: HUICHENG ELECTRIC CO Ltd SHENZHEN CITY
Current assignee: HUICHENG ELECTRIC CO Ltd SHENZHEN CITY
Priority date: 2009-01-16
Filing date: 2009-01-16
Publication date: 2009-12-16
Anticipated expiration: 2019-01-16

Abstract

The utility model relates to a 35KV aluminum tube bus insulated by a polyolefin heat shrinkable tube, which is characterized in that the outer layer of the aluminum tube bus is a shielding layer and an insulating layer is sleeved on the outer surface of the shielding layer. The insulating layer is a heat shrinkable tube made of shrinkable polyolefin and the thickness of the polyolefin heat shrinkage tube after shrinkage is 2.8-4.0mm. The aluminum tube bus is simple in structure and even in thickness and can satisfy the requirement on electric performance.

Description

35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus

Technical field:

The utility model relates to a kind of 35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus, is used for the 35KV electric pressure metallic conduction pipe bus in power transformation engineering field.

Background technology:

The insulation mode of existing insulation aluminum tube bus has four classes: a class is extrusion moulding polyvinyl chloride (PVC), and its shortcoming is that heatproof is relatively poor; The 2nd, spraying and cured epoxy resin, its shortcoming is that the elasticity of material is limited, easy be full of cracks in service causes insulation breakdown; The 3rd, the polyethylene extrusion material, but because the segmentation operation (6 meters) of metal tube bus causes the consumption of equipment and the waste of material to teach big; The 4th, wrapped teflin tape, useless power, material cost height when its shortcoming is useless, and in insulation system, infiltrate impurity easily.

Summary of the invention:

The purpose of this utility model is to provide a kind of 35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus, be a kind of simple in structure, thickness evenly, can fully satisfy the copper pipe isolated bus that electric property requires.

The technical solution of the utility model is achieved in that 35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus, it is characterized in that: aluminum tube bus is outer to be screen, the outer surface of screen is with insulating barrier, insulating barrier is a shrinkage polyolefine material heat-shrink tube, and the polyolefine material heat-shrink tube shrinks back thickness at 2.8～4.0mm.

Good effect of the present utility model is: the aluminum pipe outer surface has screen, can cushion the direct contact of isolating shrinkable tube with aluminum pipe, the raising of favourable electric property; Do not need the input of extrusion equipment and mould etc., do not have the consumption of extruded stock; The polyolefine material thermal contraction casing tube is crosslinked high molecular plastics and rubber intermingling material, thermal endurance, and good springiness can not produce be full of cracks, and good electric property, material cost are also cheap.

Description of drawings:

Fig. 1 is a schematic cross-section of the present utility model

2 aluminum tube bus, 1 conductive layer, 3 polyolefine material heat-shrink tubes.

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1,35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus, it is characterized in that: aluminum tube bus is outer to be screen, the outer surface of screen is with insulating barrier, insulating barrier is a shrinkage polyolefine material heat-shrink tube, and the polyolefine material heat-shrink tube shrinks back thickness at 2.8～4.0mm.

Determine at first during use that aluminum tube bus 2 needs the length and the thickness of shielding; And by spraying the conductive silicon rubber room temperature vulcanization or shrinking the screen 1 that conduction heat-shrink tube method prepares the aluminum pipe outer surface.Pre-heat shielding aluminum tube bus 2 stops preheating when above when its surface temperature reaches 40 degree; Put polyolefin heat-shrink tube 3 again, its length is suitable with the aluminum pipe shielding length; Shrink pyrocondensation insulating sleeve 3, the THICKNESS CONTROL after the polyolefine material heat-shrink tube shrinks is between 2.8～4.0mm, until shrinking the end of job.

Claims

1,35KV polyolefine material heat shrinking sleeve pipe insulation aluminum tube bus, it is characterized in that: aluminum tube bus (2) is outer to be screen (1), the outer surface of screen (1) is with insulating barrier, insulating barrier is a shrinkage polyolefine material heat-shrink tube (3), and polyolefine material heat-shrink tube (3) shrinks back thickness at 2.8～4.0mm.