How to Check the Items of Explosion-Proof Distribution Cabinets? Explosion-proof distribution cabinets are a type of electrical distribution cabinet equipped with explosion-proof characteristics. Their primary function is to effectively distribute electromagnetic energy, facilitating the on/off operations of power circuits. They have a high safety and waterproof rating and can visually indicate the on/off status of power circuits.

How to inspect a explosion-proof distribution box at the original factory and what inspection standards to follow? Furthermore, after the customer receives the goods, what inspection standards should be used for the project acceptance? Below, we detail the explosion-proof distribution box inspection standards.

Upon receiving the explosion-proof box distribution cabinet, customers should also conduct a simple inspection, including the following items.

The explosion-proof box has been thoroughly cleaned both inside and out, with no unpleasant odors or abnormal noises inside, and the anti-theft lock remains intact and undamaged.

2. The anti-pollution and moisture-proof measures are intact and installed in a dry, naturally ventilated location.

3. The meter calibration and indicator light tightening were conducted without any defects.

4. The switch operates seamlessly and is reliable with ease of use.

5. The power switch inside the box is intact and reliable; there are no damages to the transmission lines, and the wiring standards show no signs of loose connections or overheating.

6. All terminal screws in the box are tightened without air oxidation, and the connecting transmission wires are free from brittleness.

7. The rated current of the main switch matches the rated current of the branch power supply switch, implementing a "one machine, one switch, one maintenance" approach for three-level power distribution.

8. The entry and exit points of the transmission lines should be located at the bottom edge of the casing. Unique locations may also be placed at the top.

9. Ensure the surrounding of the distribution cabinet is free of dirt to prevent any hazards to actual operation and maintenance.

10. The shell grounding device is excellent, and the explosion-proof distribution cabinet meets the explosion-proof regulations.

The outer shell surface is treated with electrostatic powder coating, utilizing anti-corrosion and wear-resistant insulating layer electrostatic powder materials for the electrostatic spray coating.

12. For large and medium-sized explosion-proof distribution cabinets, it is imperative that the thick steel plate welding material be double-sided welded without any gaps, and there should be no penetration sand holes or incomplete welds. After the welding process, the finishing technique must involve scraping and smoothing the surface.

The explosion-proof distribution box utilizes internal hex stainless steel bolts for external standard parts, and it is essential to add a flat washer and a spring washer as well. This ensures that the housing is tightly secured without any gaps.

The housing surface features a clear Ex marking and its "Prohibition of Inductive Charging to Open the Cover" sign.