Moisture proof treatment plan for lighting ready boards in rainy rural areas of Africa

The rainy season in rural Africa is long and the air humidity is high. In some areas, there is a large temperature difference between day and night, which can easily lead to condensation inside the box. Ready Board Box in fields and villages are exposed to the outdoors for a long time, and rainwater, fog, and surface moisture can easily invade the box and corrode copper bars and circuit breaker terminals, causing short circuits, leakage, and switch failures. Therefore, a complete set of moisture-proof protection is necessary, and moisture-proof is a basic and essential process.

The preferred choice for the base material of the box is flame-retardant PC engineering plastic or thickened cold-rolled steel plate. The first step for the steel plate box is phosphating and rust removal, followed by electrostatic spraying with a double-layer coating to isolate water vapor infiltration; A EPDM foam rubber sealing ring is installed at the junction of the box door, which is fully sealed to prevent rainwater from seeping into the gaps. A drainage hole with a dust-proof and water blocking eave is opened at the bottom to timely drain the condensed water inside the box and avoid soaking the components in water.

The internal moisture-proof adopts multiple processes: the surface of the components is sprayed with moisture-proof insulation three proof paint to resist the erosion of high humidity mist; Paste moisture-proof foam and silicone moisture absorbing modules on the inner wall of the box to continuously absorb water vapor in the air; The wiring terminals and busbar are treated with nickel plating and thickened anti-corrosion treatment to reduce moisture oxidation. In response to the problem of condensation caused by the temperature difference between day and night, a small box is equipped with low-power anti condensation heating elements to balance the temperature difference inside and outside the box and suppress condensation generation from the root.

Installation of supporting moisture-proof measures: Raise the ready board at least 30cm above the ground and keep it away from stagnant water and low-lying areas; The inlet holes are sealed with waterproof rubber gaskets, and the cable gaps are filled with waterproof sealing mud. The entire moisture-proof process is suitable for outdoor working conditions in high-temperature and rainy rural areas in Africa, greatly extending the service life of ready boards, reducing leakage and fire faults, and adapting to simple lighting distribution scenarios in rural areas.