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Electrical Clearances in Low-Voltage indoor small power distribution boxes

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The electrical clearance in the low-voltage indoor small power distribution box refers to the distance and clearance between different components in the indoor small power distribution box and between the components and the housing. The size of the electrical gap directly affects the safety performance and electrical performance of the indoor small power distribution box.

For low-voltage indoor small power distribution boxes, the electrical clearance is required to comply with national standards and regulations to ensure safe and reliable operation. Generally speaking, the size of the electrical gap should be determined according to factors such as the rated voltage, current and insulation level of the electrical components.

For example, in a low-voltage indoor small power distribution box, the electrical clearance between the bus bar and other components in the AC circuit should meet the following requirements: in the case of a rated voltage below 660V, the minimum safety gap between the bus bar and other components is 10mm; When the rated voltage is 1000V, the minimum safety gap between the busbar and other components is 20mm. In addition, the electrical clearance between circuit breakers, switches and other components in the low-voltage indoor small power distribution box should also comply with relevant regulations.

In short, the electrical clearance in the low-voltage indoor small power distribution box is one of the key factors to ensure the safe operation of electrical equipment. It must be designed and installed in accordance with standards and regulations to ensure that it meets the requirements of safety and reliability.

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