Installation distance of metering distribution box

A metering distribution box should be installed with at least 900 mm of working space in front, 100 mm side clearance, and typically around 1.5 meters above the floor for accessibility and safety.

Key Installation Distances and Clearances

Front Working Space: The recommended working space in front of the distribution box is 900 mm to allow safe access for meter reading, maintenance, and installation work .

Side Clearance: A minimum of 100 mm clearance on each side of the box is required for sealing, wiring, and safety purposes .

Height from Floor: For residential installations, the box is typically mounted at approximately 1.5 meters above the floor, which ensures it is easily reachable while remaining out of reach of small children .

Distance from Other Equipment: The horizontal distance between the distribution box and other fixed electrical equipment should not exceed 3 meters, and the total distance from the main switch or upstream switchgear should generally not exceed 30 meters .

Wall Clearance: If mounted on a wall, the meter board should be at least 25 mm away from the wall surface to allow proper ventilation and cable management .

Additional Considerations:

• Ensure the box is installed in a dry, accessible, and well-ventilated area .
• Maintain adequate lighting around the box for safe operation and inspection .
• For multi-meter or commercial installations, follow utility-specific drawings and standards for spacing, such as CT chambers, junction boxes, and cable routing .
• Keep the area free of obstructions and provide secure locks if located in a public or shared space .

By following these guidelines, the metering distribution box will be safe, accessible, and compliant with standard electrical installation practices, ensuring both operational efficiency and safety for technicians and users.