Special inspection of lighting electrical ready boards in rural Africa during dry and rainy seasons

Key inspection of lighting electrical ready boards in rural Africa during rainy season (waterproof, moisture-proof, lightning protection, and leakage prevention)

1. Sealing and waterproofing: Check whether the sealing strip of the box door is aging and cracked, whether the box body is damaged, whether the cable inlet and outlet, and the bottom hole are tightly sealed, and whether there are no signs of rainwater infiltration or backflow.

2. Moisture proof condensation: Check the inner walls of the box and switch terminals for water droplets, moisture and mold, clean the moisture, and check whether the insulation parts have softened due to moisture.

3. Lightning protection grounding: Check whether the SPD surge protector is intact and whether there is any breakdown or blackening; The grounding lead and grounding terminal are not loose or corroded, and the grounding resistance meets the standard.

4. Wiring and terminals: The wiring terminals are free from oxidation, rust, and loose connections, and the insulation layer of the wires is not damaged by moisture; Is the action of the leakage protector sensitive and reliable.

5. Box inspection: Check the surface of the box for any potential water leakage hazards.

Key inspection of lighting electrical ready boards in rural Africa during the dry season (dust prevention, high temperature prevention, overload prevention, dust prevention)

1. Dust removal and cleaning: Clean the dust and sand accumulated inside the box, circuit breakers, busbars, and terminals to avoid dust accumulation causing creepage and poor contact.

2. High temperature heat dissipation: Check whether the ventilation holes of the box are blocked, whether the components inside the box are heated, discolored, or have a strange smell after exposure to sunlight, and whether the cables are softened and aged.

3. Load and wiring: Tighten all wiring terminals to prevent looseness caused by high temperature thermal expansion and contraction; Check the electrical load to avoid overloading operation.

4. Sand and small animal prevention: Seal various gaps and holes in the box to prevent wind and sand from entering, and rodents and insects from crawling in and biting the lines.

5. Device operating conditions: Check whether the switches and other components have malfunctioned due to high temperature aging and whether they are working properly.