Distribution boxes play a crucial role in modern homes, making regular maintenance and cleaning essential. It's important for everyone to pay attention to these devices during cleaning and upkeep, as proper care can prevent damage and ensure the safety of the household. Below are some key features and important precautions to consider when handling assembled electrical boxes. 1. The wiring inside the distribution box should be neatly arranged without any splices. All wires must be securely connected, ensuring that the core wire is not damaged. The cross-sectional area of the wires on both sides of the screw under the washer should be the same, and no more than two wires should be connected to the same terminal. All necessary components, such as anti-loose washers, should be present, and the connections must be tight and secure. 2. The vertical alignment of the distribution box is important. If the box height is less than 50 cm, the allowable deviation is 1.5 mm. For boxes taller than 50 cm, the deviation should not exceed 3 mm. Lighting boxes should be embedded and installed firmly, with the bottom edge at least 1.8 meters above the ground level. 3. Switches within the distribution box should operate smoothly and reliably, and they should include a leakage protection circuit. The leakage current protection device should have an operating current of no more than 30 mA and an action time of no more than 0.1 seconds. This ensures quick response in case of faults, enhancing safety. 4. In the lighting box, separate bus bars should be provided for the neutral line (N) and the protective earth line (PE). These lines should be properly distributed through their respective bus bars to maintain a safe and organized electrical system. 5. The metal frame of the distribution box must be reliably grounded (PE) or connected to zero (PEN). Additionally, if the box has a door, it should be electrically connected to the frame using a bare copper wire, and this connection should be clearly marked for easy identification. At our company, we prioritize customer satisfaction by delivering high-quality products, exceptional service, and competitive pricing. We take pride in our commitment to safety, reliability, and innovation in all our electrical solutions. Whether you're looking for residential or commercial applications, we are here to help you achieve a safer and more efficient electrical system. Join us today and build a brighter future together! Tianjin Alcoa International Trade Co., Ltd. , https://www.tjalcoa.com