The indoor distribution box fixing base should be installed on a firm, dry, and accessible surface at a height of 1.5–1.8 meters, using secure mounting brackets or screws to ensure stability and safety.

Site Selection

Choose a location that is dry, well-ventilated, and free from corrosive, flammable, or explosive substances. The site should be close to the main power supply to minimize power loss and facilitate wiring connections. Ensure the area is easily accessible for electricians and maintenance personnel, which helps prevent electrical faults and allows convenient inspection and repair .

Fixing Base Installation

• Height: The bottom edge of the distribution box is typically installed 1.5–1.8 meters above the ground for ergonomic operation and inspection .
• Mounting Method: Use suitable mounting brackets or screws to secure the box firmly to the wall or base. The fixing must prevent movement, tilting, or vibration due to external impacts .
• Surface: Ensure the wall or base is flat, strong, and capable of supporting the box's weight, including internal components like circuit breakers and busbars .

Wiring and Safety Considerations

• Power Off: Always turn off the main power supply before wiring to ensure safety .
• Wiring: Use high-temperature resistant copper wires with cross-sectional areas appropriate for the load. Maintain neat cable management, proper insulation, and clear labeling of circuits .
• Grounding: The metal box, electrical installation board, and all internal metal components must be properly grounded. Connect the protective neutral wire reliably through the terminal board .
• Sealing: Ensure all cable inlets and cover joints are tightly sealed to prevent dust or moisture ingress .

Additional Tips

• Accessibility: Leave enough space around the box for future maintenance and upgrades .
• Protection Devices: Include circuit breakers, fuses, and surge protectors for each circuit to ensure safety .
• Compliance: Follow local electrical codes and standards (e.g., NEC, IEC) and use certified components .
• Inspection: Perform visual checks and multimeter tests before powering on, and schedule regular maintenance to ensure long-term reliability . By following these guidelines, the indoor distribution box fixing base will be secure, safe, and convenient for operation and maintenance, ensuring reliable power distribution throughout the facility.