Air Aluminum Alloy Shell Busbar Trough

Busbar Installation Manual 1. Overview: Our company's low-voltage busbars are ideal power distribution equipment for modern enterprises, high-rise buildings, and various electrical usage locations. They feature a large transmission capacity, low line loss, high short-circuit strength, and excellent heat dissipation performance. Their compact structure and universal interchangeability make it more convenient and flexible for users to change, expand, or branch their circuits. The busbar products manufactured by our company are suitable for rated working voltages below 660V, frequencies of 50 (60) Hz, and rated currents of 63–5000A, applicable to three-phase three-wire, three-phase four-wire, and three-phase five-wire power distribution systems. They are now widely used in automotive manufacturing, motor manufacturing, industrial electric furnaces, workshops, shopping malls, and high-rise buildings, among others. Busbars are classified according to on-site wiring: connecting from the power transformer (generator outlet cabinet) to the distribution cabinet, from the high distribution cabinet to the distribution cabinet, routing from the distribution cabinet to the vertical shaft and then to each floor, and from the distribution box to each electrical unit, etc. 2. Standards and Structural Features of the Busbar: 1. Complies with standard GB7251.2-1997 idt IEC 439-2:1987 "Low-voltage Complete Switchgear and Controlgear" Part 2: Special Requirements for Busbar Trunking Systems. 2. Busbars use copper or aluminum bars as conductors. 3. Standard lengths are: 2 meters, 3 meters, 4 meters, 5 meters, 6 meters (can be designed according to user requirements in special cases). 4. The designed current for the busbar is 63–5000A (can be designed according to user requirements in special cases). 5. Plug-in interface units: specifically set according to user requirements, but the short distance between plug-in interfaces must be at least 0.8 meters apart. 6. Expansion joint units: adapt to the thermal expansion and contraction of the busbar system, generally an expansion joint unit should be added every 30 meters. 7. Plug-in boxes: for current ratings of 16A–500A, consider using distribution boxes as substitutes.