CN2356408Y

CN2356408Y - Composite insulation electric conduction rod for indoor and outdoor voltage electric appliance

Info

Publication number: CN2356408Y
Application number: CN 98242066
Authority: CN
Inventors: 罗吉
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-09
Filing date: 1998-10-09
Publication date: 1999-12-29
Anticipated expiration: 2008-10-09

Abstract

The utility model provides a composite insulation electric conduction rod for indoor and outdoor voltage electric appliances. The utility model comprises a conduction rod and an insulated sleeve, wherein, the insulated sleeve is formed into a composite structure, and is composed of a plurality of groups of polyester film layers and aluminum foil layers which are arranged alternately. The number of groups is decided according to the degree of withstand voltage. In general, 25 to 30 layers of films with the 0.05 thickness and one layer of aluminum foil with 0.12 thickness are used. Per 10KV withstand voltage is wound three groups in average according to the thickness. The outer layer of the utility model uses a thermal shrinkage pipe or an SMC material as a protective insulation layer. The utility model has the advantages of difficult wetting, high insulating strength, strong mechanical property, and low cost.

Description

Indoor outer High-Voltage Electrical Appliances compound inslation conducting rod

The utility model relates to a kind of indoor outer High-Voltage Electrical Appliances compound inslation conducting rod, belongs to the High-Voltage Insulation technical field.

The conducting rod of the electric equipment of 35KV and the above electric pressure of 35KV employing at present mostly is that oil-paper, glue soak paper, abrasive paper has the condenser type insulating sleeve, or oil-filled, gas-filled type sleeve pipe is as the insulating sleeve of equipment.The papery sleeve pipe causes the dielectric loss of sleeve pipe to increase owing to make moist easily, and dielectric strength reduces, and has influenced the reliability service of electric equipment.Especially the above outdoor bulk-oil circuit-breaker of 35KV, sleeve pipe must be immersed in the oil and use, and has caused great obstacle for the no oiling development of outdoor vacuum circuit breaker.When the papery sleeve pipe keeped in repair after making moist, the dried that need carry out 72 hours can't recover to reach the technical indicator that requires fully, caused very big workload for actual motion unit.The papery sleeve pipe conducting rod that uses in former 35KV and the above bulk-oil circuit-breaker is used for the more difficult regulation that reaches the relevant operating standard of power department of dry type circuit breaker.

The purpose of this utility model is a kind of can the use in air of design, can satisfy no oiling High-Voltage Electrical Appliances needs such as dry vacuum circuit breaker, dielectric loss does not reach the GB requirement in moisture-sensitive, the use, cost is low, indoor outer High-Voltage Electrical Appliances insulation conducting rod easy to maintenance.

The technical solution of the utility model is to realize like this, provide structural representation of the present utility model as Fig. 1, the centre is a conducting rod 1, and insulating case 2 internal layers on it are made of polyester film layer 2-1 and aluminium foil layer 2-2 alternate many groups, and outermost layer is a surface insulation layer 2-3.

Around 25～30 layers, aluminium foil layer 2-2 around one deck, was one group by this thickness during with 0.012 thick aluminum foil when each polyester film layer (2-1) was with 0.05 thick film in insulating case 2 internal layers of above-mentioned conducting rod, and average every 10KV is withstand voltage around 3 groups is optimum value;

Above-mentioned conducting rod surface insulation layer 2-3 is with heat-shrink tube or SMC (glass fibre enhancing unsaturated polyester resin) material, and thickness 1～2mm is an optimum value.

The utility model has the advantages that not moisture-sensitive, the dielectric strength height, the capacitance partial pressure principle is adopted in easily processing, makes pole plate with aluminium foil, so the little and withstand voltage height of casing thickness, and the AC power frequency that can reach the 105KV/ per minute is withstand voltage, and dielectric loss is below 0.01.Its surface insulation layer material makes sleeve pipe dielectric strength height, and moisture-sensitive does not have higher mechanical strength, and aesthetic in appearance, has satisfied the needs of high-tension electricity devices such as outdoor dry type vacuum circuit-breaker, and cost only is 70% of a papery sleeve pipe.

Fig. 1 is a cross section structure schematic diagram of the present utility model, the 1st, and conducting rod, 2-1 are that polyester film layer, 2-2 are that aluminium foil layer, 2-3 are surface insulation layers.Fig. 2 is this utility model overall schematic, the 1st, and conducting rod, the 2nd, compound insulating sleeve, the 3rd, canopy, the 4th, aluminium full skirt.

Further specifying embodiment of the present utility model below in conjunction with accompanying drawing, is example with 35KV; 6 of conducting rod φ 27 * 1350, canopys, single hole silicon rubber is made.Polyester film layer is thick in 30 layers with 0.05, and aluminium foil is thick around one deck, altogether around 10 groups with 0.012.Other are all made by the standard laid down by the ministries or commissions of the Central Government.

Claims

1, a kind of indoor outer High-Voltage Electrical Appliances compound inslation conducting rod, comprise that insulating sleeve (2) and conducting rod (1) is characterized in that insulating sleeve (2) is a composite construction, its internal layer is by polyester film layer (2-1) and the alternate formation of the many groups of aluminium foil layer (2-2), and outermost layer is surface insulation layer (2-3).

2, conducting rod according to claim 1, when it is characterized in that each polyester film layer (2-1) with 0.05 thick film around 25～30 layers, aluminium foil layer (2-2) around one deck, is one group by this thickness during with 0.012 thick aluminum foil, and average every 10KV is withstand voltage around 3 groups is optimum value.

3, according to claim 1 and 2 described conducting rods, it is characterized in that surface insulation layer (2-3) with heat-shrink tube or SMC (glass fibre enhancing unsaturated polyester resin) material, thickness 1～2mm is an optimum value.