Advantages of 10kV and 35kV Bus-bar Tube

In the old substation, because the power switch, bus without insulation protection, often cause the maintenance personnel by the charged body damage. The application of Bus-bar Tube can reasonably reduce the probability of such situations, and the safety factor of staff can also be improved.

Bus-bar tubes can be used to protect busbar grooves from salt spray, which often occurs in coastal areas, and the erosion of busbar grooves caused by industrial organic gases. The Bus-bar Tube has excellent corrosion resistance, which can effectively prevent the Bus groove from being eroded.

For a long time, the problem of short circuit fault often occurs in substations due to the proximity of animals or direct contact with the exposed charged body of the cabinet. The use of Bus-bar Tube for insulation protection not only makes the energized conductor have insulation characteristics, but also makes it difficult for small animals to get close to spark or spark.

Due to the environmental pollution problem, more and more substations are upgraded in pollution level. The application of Bus-bar Tube can reasonably protect substations.

Bus-bar Tube is used for insulation protection on the Bus bar. Exposed Bus bar may have safety hazards, and its insulation interval is too large to meet the design requirements. Bus-bar Tube can be installed on the Bus bar to avoid short circuit faults caused by steel bar bonding, contact with pollutants, large temperature difference and high ambient humidity.

Bus-bar Tube heating process:

Stick cold problem: Because the heat transfer performance of copper bar metal materials is very good, the phenomenon of sticking cold will occur in the whole process of closing. That is, when the Bus-bar Tube is heated and closed, the Bus-bar Tube will be rapidly closed due to the heating part in the whole process of closing, causing the bus-bar Tube to be close to the copper row. The heat transfer performance of the copper bar will immediately reduce the temperature of the Bus-bar Tube close to the copper bar, and the phenomenon of the Bus-bar Tube close to the copper bar is called sticking cold.

Solution: Before heating, the copper bar is pre-heated, so that the temperature of the copper bar is higher than the natural environment temperature, and then the copper bar is closed, which can reduce or prevent the phenomenon of sticking cold.

Bus-bar Tube heating: A: After preheating the copper bar, heat evenly from one end to the other. B: After preheating the copper bar, heat it from the middle of the copper bar to both sides.

The application of drying box to carry out heating, the benefits of drying box heating are more uniform, reduce the phenomenon of Bus-bar Tube being baked and pasted cold caused by uneven heating and moving. The temperature of each part of the drying box has been basically the same. The copper bars were heated to above their natural ambient temperature and then covered with Bus-bar tubes.

The reduced Bus-bar Tube surface shall meet the following standards:

1.Surface leveling, no cracking, no cold phenomenon.

2.Uniform collection, surface without baking paste imprint, sheet metal bending does not appear wrinkles.

3.After heat shrink Bus-bar Tube, the heat shrink Tube should not appear fading, bubble and other phenomena.