The design of installation holes for rural lighting electrical ready boards in Africa should be based on local outdoor construction conditions, stability of box fixation, and ease of maintenance in the later stage, following the principles of practicality, simplicity, and safety. At the same time, reference should be made to electrical installation specifications to clarify the number, spacing, and diameter of holes, taking into account both economy and reliability, and adapting to simple installation scenarios in rural areas.

The number of holes is mainly 4, which can be adjusted in special circumstances. African rural electrical Ready Board Box are mostly small wall mounted, mainly used for lighting and power supply in households or small villages. The box size is relatively small, with four holes (one at each corner of the box) to achieve stable fixation, avoiding loosening of the box due to wind and vibration, and meeting the basic requirements for outdoor installation. If the size of the box is large or the installation environment is windy, it can be increased to 6 hole positions (four corners+middle of both sides) to further enhance the fixing strength, without the need for excessive hole design, to avoid wasting materials and affecting the sealing of the box.

The spacing between holes and the diameter of the holes should match the specifications of the fixed parts and be in line with the local construction situation. In terms of spacing, the horizontal and vertical spacing should be adapted to the size of the box. For conventional small boxes (300mm × 200mm), the horizontal spacing of the four corner holes is about 240-260mm, and the vertical spacing is about 140-160mm to ensure uniform fixing force; The aperture priority design is 8-10mm, suitable for locally available M8 or M10 stainless steel expansion bolts, balancing fixing strength and installation convenience, avoiding loosening caused by excessively large aperture and inability to adapt to conventional bolts if it is too small.

In addition, the hole position should avoid the electrical installation area inside the box and maintain a safe distance of not less than 40mm from the wiring terminals, switches, etc. inside the box to prevent drilling damage to internal components. At the same time, the edges of the holes need to be smoothed to avoid scratching the wires or installation personnel, and are suitable for simple construction techniques in African rural areas. Installation can be completed without the need for professional equipment, ensuring power supply safety and meeting local construction capabilities, achieving the unity of practicality and safety.