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Gujie Electric Power Technology Co., Ltd. specializes in the production of high-voltage SF6 load switches, XGN15-12 series high-voltage ring cabinets, GJS port-12 cable distribution boxes, outdoor switch stations, YBM port-12 prefabricated box type substations, and other products.
The 10 kV outdoor cable branch box (OCBB) is no longer a simple “junction pit” but the pivotal node that determines the reliability, flexibility and losses of modern medium-voltage grids. This paper reviews the technical evolution, design philosophies, key components, installation practices and smart upgrade path of OCBBs rated 12 kV / 630 A–1,250 A.
With the rapid growth of urban building density and the increasing demand for reliable in-building power supply, the indoor compact cable branch box (IC-CBB) has become a critical component of modern low-voltage networks.
Energy-saving cable branch boxes are a vital component of modern, efficient power distribution systems. By incorporating low-loss materials, optimized electrical design, smart monitoring, and robust thermal management, these devices can significantly reduce energy waste, lower operational costs, and contribute to environmental sustainability. As technology advances, the integration of AI, IoT, and green materials will further enhance the performance and adaptability of cable branch boxes in diverse applications.
