Salt spray corrosion prevention measures for lighting Ready Board Box in coastal rural areas of Africa

The air in rural coastal areas of Africa has high salt content and humidity, which, when combined with high temperature exposure, can easily corrode the casing and internal components of the ready board. Therefore, comprehensive protection measures such as material, sealing, coating, structure, and operation and maintenance are required. Prioritize thickening the shell with flame-retardant PC weather resistant plastic, avoiding ordinary cold-rolled steel; If carbon steel box is used, double-layer epoxy zinc rich primer and polyurethane salt spray resistant topcoat are sprayed inside and outside, with a coating thickness of not less than 120 μ m, and pass the 500 hour neutral salt spray test. Install EPDM weather resistant rubber full circle sealing strips on the joints of the box, set drainage channels on the door panels, and open dust-proof and waterproof drainage holes at the bottom to prevent salt spray and water vapor accumulation.

The internal copper bars and wiring terminals are treated with nickel plating and thickening. The circuit breaker is made of corrosion-resistant plastic shell, and insulation isolation barriers are installed to reduce salt spray adhesion. Add a sunshade and rainproof roof outside the box to prevent direct spraying of seawater droplets; The grounding bolt is made of stainless steel material, and the contact surface is coated with conductive anti rust grease. Provide regular maintenance plan, clean the surface salt frost of the box every quarter, check the aging and damage of the rubber strip, and apply anti-corrosion coating to the worn parts of the box every year. The overall protection takes into account the low-cost and easy maintenance needs of rural areas, and is suitable for long-term high salt spray and harsh outdoor conditions.