Knowledge Analysis of Dip Insulated Copper Bus Bars

Dip Insulated Copper Bus Bars are a type of busbar product that uses copper tubes as conductors and an external insulation layer. It plays a key role in the transmission of electrical energy in the power system, and its performance directly affects the stability and efficient operation of the power system. With the technological iteration of the power industry, various types of insulated busbar products continue to emerge, such as PVC Dipping Insulated Bus Bar, Dipping Copper Busbar, etc., all of which are adapted to different application scenarios based on their respective characteristics. Insulated copper tube busbars occupy an important position in medium and high voltage power systems.

High current carrying capacity: The main body of the Dip Insulated Copper Bus Bars adopts hollow copper tubes or aluminum alloy tubes, with a larger surface area. Compared with conventional rectangular busbars, the current density distribution on the conductor surface is more uniform, and the maximum rated current can reach 12000A. This characteristic makes it suitable for high-capacity power transmission needs.

High insulation performance: It has excellent insulation performance, adopts a sealed shielding insulation method, the grounding potential of the shell is zero, the electric field distribution on the surface of the busbar is uniform, and the electrical insulation strength is high. It can directly pass through cable trenches and cable interlayers. This is consistent with the insulation design concept of Insulated Custom Copper Bus Bar with PVC Dipping, which optimizes the insulation structure to ensure safety during use.

High mechanical strength: Busbar Supports perform well. Its main body allows stress to be four times that of rectangular busbars, can withstand large short-circuit currents, has high mechanical strength, and can support a maximum span of 8 meters for Insulated Flexible Copper Bus Bar. Paired with professional Busbar Supports, it can further improve installation stability.

Good heat dissipation: Due to the use of hollow conductor design, the Soft Connection Copper Busbar has ventilation holes at both ends, and the inner diameter air duct can naturally form hot air convection. The heat dissipation conditions are much better than conventional busbars, effectively solving the problem of temperature rise under high current transmission. In addition, its loss is relatively low, and its external design results in a low surface skin effect coefficient (Kf ≤ 1), low AC resistance, and low power loss. The insulation layer dielectric loss of the Cross-linked Shielded Insulated Busbar is less than 0.01%, which meets the development needs of energy conservation and consumption reduction in the power system.

The stable operation of Soft Connection Copper Busbar is closely related to the environment it is in, and it has clear adaptation requirements for operating environmental conditions. This characteristic is also reflected in similar insulated busbar products ,such as PVC Dipping Insulated Busbars.

In terms of temperature environment, the Busbars Insulating Tubing can adapt to a maximum ambient air temperature of 45 ℃, a minimum temperature of -40 ℃, and a maximum daily temperature difference controlled within 30 ℃; At the same time, it needs to withstand a certain amount of sunlight intensity, and can withstand 0.1W/cm ² of sunlight radiation at a wind speed of 0.5m/s. In terms of altitude, the product is designed to adapt to environments with an altitude of ≤ 1000m by default. If the altitude is higher than 1000m, the compatibility needs to be confirmed with relevant parties in advance; In a wind environment, the maximum wind speed it can withstand is 35m/s.In terms of humidity conditions, Heat Shrink Tube Polyolefin Busbar can adapt to high humidity environments with a daily average relative humidity of 95% and a monthly average relative humidity of 90% at 25 ℃; In terms of precipitation, it can withstand rainfall conditions with an annual precipitation of 3000mm and a maximum daily precipitation of 360mm. In terms of earthquake protection, the product is designed according to the seismic intensity of level VII, capable of withstanding horizontal acceleration of 0.25g and vertical acceleration of 0.125g, and can withstand vibration with a frequency of 20Hz and a sine wave of 3 cycles. The safety factor is greater than 1.67, while ensuring normal operation under the simultaneous action of earthquakes and short circuits. This seismic performance complements the anti-vibration design of Busbars Copper Insulating Tubing, providing a guarantee for the stability of the power system.

In addition, the product is suitable for a Class IV pollution level (calculated as 31mm/kV based on the highest voltage), and can operate in an environment with thunderstorms for 90 days per year. The installation location is not limited by indoor or outdoor conditions, and it can be installed and fixed with professional Bus Bar Supports to further improve the stability of operation in different environments.