Waterproof busbar trunking The manufacturer will explain the differences between busbar bridges and busbar trunking systems.

　　 Waterproof busbar trunking Manufacturer: Selection of Air-Insulated Busbar Trunking Systems

　　The larger the cross-sectional area of a closed-type conductive copper busbar, the lower the power loss will be. However, this also leads to increased investment, maintenance, management costs, and consumption of non-ferrous metals. Therefore, when designing and selecting closed busbars, it is essential to take an economic perspective into account and choose closed busbars with appropriately sized specifications, ensuring low power losses while avoiding increases in investment, maintenance, management costs, and non-ferrous metal consumption.

　　Enclosed busbars shall be installed within high-voltage electrical shafts, located close to the building’s power loads, in order to minimize the length of the main trunk lines and reduce construction costs. The electrical shaft must not share a common shaft with elevators, pipelines, or other such facilities, and should be kept away from the hot pipes and exhaust ducts of diesel generators.

　　1. During installation, air-insulated busbars are primarily connected via plug-in connectors. The conductive copper bars at the plug-in connections feature double-sided plugs with exceptionally tight mating surfaces. This design increases the contact area of the conductive copper bars at the sockets, thereby reducing contact resistance and preventing overheating and oxidation of the conductive copper bars.

　　2. For the connection of joints between densely insulated busbars, some use copper bolts to drill holes directly into the conductive copper bars for connection. This reduces the cross-sectional area of the conductive copper bars, causing heating around the drilled holes and leading to oxidation of the conductive copper bars.

　　3. The reliability of the connections between busbar units directly affects the operation of the entire power supply and distribution system. The quality of busbar connections is determined by both internal and external factors—for example, internal factors such as the physical fitness of installation personnel, and external factors such as the use of different installation tools. These factors can result in loose connections between busbars, increasing contact resistance at the connection points, causing the conductive copper bars to heat up and oxidize, and creating potential safety hazards. Therefore, the use of torque-controlled copper bolts and torque wrenches provides a scientific basis for the acceptance testing of enclosed busbar internal connections.

　　 Waterproof busbar trunking Manufacturer: What’s the difference between busbar bridges and busbar trunking systems?

　　Generally speaking, busbar trunking typically refers to compact busbars, while cable trays are used for routing cables. Busbar trunking can be categorized into compact insulated busbar trunking and air-insulated busbar trunking. Busbar trunking also features a casing made of steel plates. The structure of busbar trunking is more complex than that of busbars. Busbar trunking consists of four rectangular conductors separated by insulating plates, with no internal convective space. It can generally be used both indoors and outdoors.

　　A busbar trunking system is a simple, rectangular support and enclosure designed for bridging copper busbars—typically used for connections between switchgear cabinets or between switchgear cabinets and walls. While busbar trunking systems can also be employed, the right side of a busbar trunking system features a well-engineered structure that is compact in size and equipped with insulating components inside. These components allow for flexible rotation and extended service life, with multiple detailed features including variable-capacity units and fire-resistant elements. Additionally, the system is fitted with a plug-in box to provide power to connection points. The busbar bridge has a housing made of steel plates, within which rectangular busbars are installed. The busbars are secured to corresponding angle-iron supports via insulators. Typically, a busbar bridge is used between two separate switchgear cabinets to connect their main busbars. The structure of the busbar bridge is relatively straightforward; all we need to pay attention to are the electrical clearances and the orientation of the busbars. The busbars themselves are rectangular conductors, and the angle-iron supports are usually fabricated from sheet metal to protect the busbars. Generally, this type of protective sheet-metal enclosure is intended for indoor use.

　　 Waterproof busbar trunking That’s all for today’s introduction from the manufacturer’s editor. Thank you for watching, and we’ll see you again next time.

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