Conduit busbars as a substitute for rectangular busbars, featuring the following characteristics:

High load capacity

The main body of the busbar is a hollow copper tube or aluminum alloy tube, with a large surface area. Compared to conventional rectangular busbars, its conductor surface current density is uniformly distributed, and the rated current can reach 12,000A.

Excellent insulation properties

The busbar features a sealed shielding insulation method, with the shell grounded to zero potential. The electrical field distribution on the busbar surface is uniform, and it boasts strong electrical insulation properties. It can be directly passed through cable trenches and cable spaces.

High mechanical strength

The busbar main body allows for stress four times that of a rectangular busbar, can withstand higher short-circuit currents, boasts high mechanical strength, and enables busbar support spans up to 8 meters.

Good heat dissipation, low temperature rise

The busbar is a hollow conductor with ventilation holes at both ends, allowing for natural convection of hot air within the internal diameter channel, providing better heat dissipation conditions compared to conventional busbars.

Low loss

The shape of the busbar determines a low skin effect coefficient on its surface, Kf≦1, resulting in a small AC resistance and thus minimal power loss in the busbar. The insulation layer of the cross-linked shielded insulated busbar has a dielectric loss below 0.01%.

High-temperature resistance coefficient of insulating materials

The main insulation material of the cross-linked shielded insulating busbar offers excellent electrical properties and chemical stability, allowing normal operation within a temperature range of -200℃ to +200℃. It has low dielectric loss, is flame-retardant, aging-resistant, and when paired with other insulating materials, the product's service life is ≥30 years.

High resistance to electrical vibration

The dynamic stability test results indicate that a copper busbar with a voltage of 10kV and a rated current of 4000A can withstand a short-circuit current surge of 63kA (for 4 seconds). It can be directly mounted on steel structural frames or concrete supports, eliminating the need for wall penetration sleeves and insulating supports, and possesses strong seismic resistance.

Unaffected by environmental interference, high reliability

Each phase of the busbar is enclosed and shielded insulated, eliminating condensation inside and exterior moisture, as well as ground and phase-to-phase short circuit faults caused by foreign objects, ensuring highly reliable operation.

Busbar architecture is straightforward, well-arranged, easy to install, and requires minimal maintenance.

One-time installation, lifetime maintenance-free