The dense busway is named after its structural form, while the fire-resistant busway is named for its application.

Intensive busway slots are specifically designed with tightly stacked phases and phase-to-case arrangements, utilizing extremely thin insulating materials for insulation between them. They are suitable for AC three-phase four-wire and three-phase five-wire systems with frequencies of 50~60Hz, rated voltages up to 690V, and rated working currents of 250~5000A. These busways serve as auxiliary equipment for power supply and distribution systems in industrial and mining enterprises, as well as in high-rise buildings, particularly for the renovation of workshops and older enterprises.

The fire-resistant busway is composed of a shell coated with fire-retardant paint, a bus wrapped with fire-resistant mica tape, and a bracket made from fire-resistant insulating materials. The bracket features multiple grooves, where the bus is inserted and secured. At one end of the busway is a busway junction box, and within the busway is a bus tap box. The fire-resistant busway boasts excellent insulation properties, allowing for continuous use in both normal and fire conditions for over an hour. It is suitable for use in high-rise buildings and critical facilities, serving as a substitute for fire-resistant cables in power transmission and distribution.

Yunnan Youtong Electrical Co., Ltd. is a professional manufacturer of busbar trunking systems, offering high-value busbar trunking systems with meticulous craftsmanship, durability, a wide range of specifications, and competitive prices. For inquiries, please feel free to call!