However, for distribution boxes operating under the scorching summer sun, due to direct sunlight, heat reflection from cement ground, and heat generated by the equipment inside, the temperature inside the box can sometimes exceed 60°C. Outdoor low-voltage power distribution boxes (hereinafter referred to as "distribution boxes") are low-voltage distribution equipment used in 380/220V power supply systems to receive and distribute electrical energy. Hidden away in industrial settings or mounted discreetly on street poles, they quietly manage the flow of power to homes, businesses, and essential services. But there's a silent threat lurking inside these metal cabinets –. Electrical systems are becoming increasingly compact and the number of circuits per unit volume is growing, leading to higher heat generation per unit volume. The rule of thumb for semiconductors states that increasing the component temperature by 10 K in relation to the maximum permissible. Protect the life of distribution box in high UV and extreme temperatures with UV-resistant materials, insulation, ventilation, and regular maintenance. They should work well and remain reliable in any environment. The box body shall be made of stainless steel of natural color as far as possible, which is not easy to rust and has the function of.