CN201364755Y

CN201364755Y - 10KV metal tube bus insulated by conductive/insulated composite double-wall heat shrinkable tube

Info

Publication number: CN201364755Y
Application number: CNU2009200928857U
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 10KV metal tube bus insulated by a conductive/insulated composite double-wall heat shrinkable tube, which is characterized in that an insulating layer2 is sleeved on a conductive metal tube1 which is a metal tube bare bus; the insulating layer2 is a conductive/insulated composite double-wall heat shrinkable tube directly added on the outer surface of the conductive metal tube1; the total thickness of the insulating layer after shrinkage is 2.5-3.3mm; and the thickness of the conductive layer is 0.5-0.8mm. The metal tube bus is simple in structure and even in thickness and is an insulated copper tube bus which can satisfy the requirement on electric performance.

Description

10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus

Technical field:

The utility model relates to a kind of 10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus, is used for the 10KV electric pressure metallic conduction pipe bus in power transformation engineering field.

Background technology:

The insulation mode of existing insulated metal pipe 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 10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus, for simple in structure, thickness evenly, can satisfy the metal tube isolated bus that electric property requires.

The technical solution of the utility model is achieved in that 10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus, it is characterized in that: be with insulating barrier on the conductive metal pipe, insulating barrier is the conduction/insulated compound double wall heat Heat-Shrinkable Tubings that directly shrinks at the metal tube outer surface, insulating barrier shrinks the back gross thickness at 2.5～3.3mm, and the thickness of conductive layer is 0.5～0.8mm.

Good effect of the present utility model is: metal tube directly contacts with the conduction shrink wrap layer, and outer surface shielding processing that it goes without doing settles at one go.The pyrocondensation screen is arranged, can cushion the direct contact of isolating shrinkable tube, the raising of favourable electric property with metal tube; Do not need the input of extrusion equipment and mould etc., do not have the consumption of extruded stock; Conduction/insulated compound double wall heat shrink sleeve is crosslinked high molecular plastics and rubber intermingling material, and 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

Embodiment:

Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1,10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus, it is characterized in that: be with insulating barrier 2 on the conductive metal pipe 1, conductive metal pipe 1 is the metal tube bare bus bar, insulating barrier 2 is the conduction/insulated compound double wall heat Heat-Shrinkable Tubings that directly shrinks at its outer surface, its insulating barrier shrinks the back gross thickness at 2.5～3.3mm, and the thickness of conductive layer is 0.5～0.8mm.

At first determine length and the thickness that conductive layer 1 metal tube bare bus bar need insulate during use; Preheating metal tube bare bus bar stops preheating when above when its surface temperature reaches 40 degree; Put insulating barrier 2 conduction/insulated compound double wall heat Heat-Shrinkable Tubings, the length that its length and metal tube need insulate is suitable; Shrink conduction/insulated compound double wall heat Heat-Shrinkable Tubings, the THICKNESS CONTROL of the heat-shrinkable T bush after the contraction is between 3.0～4.1mm, until shrinking the end of job; Metal tube can be copper pipe, aluminum pipe or copper cladding aluminium pipe.

Claims

1,10KV conduction/insulated compound double wall heat shrink sleeve insulated metal pipe bus, it is characterized in that: be with insulating barrier (2) on the conductive metal pipe (1), conductive metal pipe (1) is the metal tube bare bus bar, insulating barrier (2) is at the conduction of the direct heat shrink of its outer surface/insulated compound double wall heat Heat-Shrinkable Tubings, sleeve pipe shrinks its insulating barrier gross thickness of back at 2.5～3.3mm, and the thickness of conductive layer is 0.5～0.8mm.