Waterproof busbar trunking The manufacturer will now explain the limitations of busbar trunking systems in high-rise and super-high-rise buildings.

　　 Waterproof busbar trunking Manufacturer: Limitations of Busbar Trunking Systems in High-Rise Buildings

　　Compared to conventional cables, busbar trunking systems demonstrate significant advantages as the primary power supply lines. However, over time, operational experience has revealed that busbar trunking systems themselves have numerous irreparable defects. Therefore, busbar trunking systems are not an ideal solution for use as the main power supply line.

　　First, these products are expensive, occupy a large installation footprint, have a long installation period, require high labor intensity, and involve substantial investment. It is generally acknowledged that plug-in busbars and trunking systems are costly—for instance, for a three-phase four-wire system with a floor height of 3 meters and a mains current rating of 100 A, the cost of a branch-connected busbar or trunking system can be around 2,000 yuan. Due to the special installation environment and stringent requirements for busbars and trunking systems, electrical shafts must be separately reserved within buildings exclusively for their use. For a high-rise building, the space occupied by electrical shafts from top to bottom can be quite significant, thereby increasing construction costs. Busbars and trunking systems are installed in sections, each section weighing nearly 100 kilograms. Their installation requires manual handling and adjustment throughout the entire process, making it extremely labor-intensive. Moreover, since different floors may have varying current ratings, busbars and trunking systems often exhibit poor interchangeability. If the joints are not smooth and flat, or if there is insufficient space to tighten the connecting bolts, installation becomes even more time-consuming and laborious. In addition, the installation of busbars and trunking systems demands strict adherence to specific guidelines: during installation, collisions and impacts must be avoided; connecting bolts should be tightened appropriately—too tight or too loose can both pose safety risks and shorten the service life of the busbars and trunking systems. Therefore, only experienced and skilled workers should undertake their installation.

　　2. They have poor moisture resistance and corrosion resistance, demanding strict requirements for both the installation environment and installation procedures. As a result, maintenance efforts are substantial. During transportation and storage, the insulation layers of busbars/slots can become damp and deteriorate, while the copper bars may undergo oxidation and corrosion—especially at connector points, where the copper bars are more prone to oxidation and corrosion, leading to degraded electrical performance. Therefore, prior to installation, busbars/slots must be properly maintained. During operation, fluctuations in temperature—alternating between hot and cold—cause the insulation layer to release moisture when heated and absorb moisture when cooled, thereby compromising its insulating quality. Additionally, connections may loosen and oxidize with temperature changes, increasing contact resistance and causing the connections to heat up. These facts clearly underscore the need for frequent maintenance of busbars/slots. Busbars/slots that have been in long-term use should undergo maintenance and inspection at least once a year. Before performing any repairs, use a multimeter to measure the conductivity of the busbar/slot’s conductive strips, ensuring that the busbar/slot is completely de-energized. The following items should be the primary focus of your inspection:

　　(1) Check whether the contact between all fasteners and conductive components is loose.

　　(2) Check whether the insulating materials have aged or deteriorated, and whether the conductive parts have melted or become degraded.

　　(3) Check whether any foreign objects have entered the busbar/channel and whether there is any water leakage.

　　Any issues discovered should be addressed promptly to eliminate potential hazards. If insulation breakdown is detected, the busbar/channel should be dismantled in sections or inspected section by section using a withstand voltage tester to pinpoint the fault location. Then, replace the faulty busbar/channel with a new one or re-tie it properly.

　　3. During operation, the contacts or joints of busbars/bus ducts tend to heat up easily, or their current-carrying capacity may be insufficient, leading to overheating of the busbars/bus ducts. Therefore, when selecting the capacity of busbars/bus ducts in specific engineering designs, it is essential to thoroughly calculate the actual electrical load of the building, take into account the impact of ambient temperature, and allow for an appropriate margin of safety.

　　 Waterproof busbar trunking The manufacturer’s editor won’t go into much detail today. If you’re looking to purchase busbar trunking systems, feel free to contact us. Waterproof busbar trunking Manufacturer.

Free consultation hotline:
0573-86400983

Emergency hotline:
Mr. Wang:13906833990

Corporate email:
qinshan@qinshancable.com

Company Address:
No. 218, Changfeng West Road, Qinshan Nuclear Power Related Industry Zone, Haiyan County, Zhejiang Province