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Which kind of tubular busbars is better, cast insulated or extruded insulated?
2022.02.06 Views:249

Insulated tubular bus is more and more commonly used in power transmission and transformation construction. At present, insulated tubular bus can be divided into three types: extruded insulated tubular bus, cast insulated tubular bus and wrapped insulated tubular bus. So which is better, tubular bus insulation casting type or extrusion type?

 

insulated_tubular_busbar-Guangdong high power

The advantages of Guangdong High Power's epoxy resin cast insulated tubular bus mainly include the following:

1. Super waterproof and dust-proof (IP68), which can be laid in ditches, tunnels, plateau depressions, glaciers, snow and other harsh environments. Epoxy resin has excellent weather resistance and chemical stability. The insulating layer cast with epoxy resin can isolate most of the effects of moisture, dust, biology, etc. in the external environment. Epoxy resin cast insulated tubular bus can be used both inside and outside the house, and its reliable insulation performance enables it to adapt to harsh environments without deterioration for 30 years.

2. There will be no discharge caused by internal condensation.

3. Super anti-collision ability, up to IK10 level, 10 kg hammer can not crack. The bending section modulus of tubular bus with the same current carrying capacity is 5 times that of rectangular bus. The epoxy resin cast insulated tubular bus is one of the bus products with super mechanical strength at present. It has the bending resistance and anti-collision capability under a large span, and can withstand a large short-circuit electric force.

4. Low partial discharge, zero surface potential, high reliability of live operation.

5. The insulating layer shall be poured after bending, and there is no inconsistency in the thickness of the insulating layer.

6. Not afraid of low temperature, low temperature does not crack. The epoxy resin casting insulation layer can be applied to the environment of minus 50 degrees. Moreover, the tubular bus conductor adopts a hollow tubular structure with large current carrying capacity and low skin effect, which can effectively prevent condensation inside the bus.

7. Don't be afraid of high temperature, high temperature doesn't melt. The epoxy resin cast insulated tubular bus is made of epoxy resin cast to form an insulation layer, and MPP protective tube is applied externally. The melting point of epoxy resin is more than 300 degrees, and the melting point of MPP pipe is more than 200 degrees. Under normal operation conditions, there is no need to worry about high-temperature melting. Moreover, the tubular bus conductor adopts a hollow tubular structure with large surface knots. The conductor can dissipate heat through the air flow in the hollow part, which has good heat dissipation conditions, so the temperature rise is low.

8. Fear no fire. Vacuum casting of epoxy resin has extremely high heat resistance coefficient, and the melting point of epoxy resin under normal pressure can reach more than 300 degrees. MPP protective sleeve is applied outside the tubular bus to perfectly realize fire prevention, which is a feature of epoxy resin casting solid insulated tubular bus, and also a feature of wrapped/extruded insulated tubular bus.

Thirty years of zero failure, maintenance free. The insulation layer is poured with epoxy resin with excellent performance, and there is also a grounding shield layer. The insulation layer is completely isolated from each other, the surface potential is zero, and the internal electric field is evenly distributed. Therefore, the electrical insulation performance is excellent, and the safety distance is not considered during installation. The live operation is safe and reliable.

See here, I believe you can judge which is better, the tubular bus insulation casting type or the extrusion type. If you want to know more about insulated tube bus, please consult Guangdong Gaodian Technology Co., Ltd., which has 30 years of practical experience in the bus industry. With rich experience, mature technology, guaranteed quality, and professional production equipment, you can quickly mass produce and ship according to customer needs, meet the needs, the manufacturer quotes, and call Mr. Deng at 13178866601 (WeChat same number)