How to inspect explosion-proof electrical appliances such as explosion-proof positive pressure cabinets

1. Check the nameplate, whether the information on the nameplate is consistent with the drawing of the explosion-proof positive pressure cabinet.

2. The shell of the explosion-proof positive pressure cabinet should be free of cracks and damage, and the joint surface of the explosion-proof positive pressure cabinet should be tightened.

3. The fixing bolts and loosening equipment should be complete.

4. Whether the ventilation and exhaust system of the explosion-proof positive pressure cabinet is unobstructed, whether the connection is correct, and whether the installation positions of the inlet and outlet meet the requirements of the drawings.

5. Check whether the sealing ring of the cable entry device in the explosion-proof positive pressure cabinet is installed with clamping joints, and whether the excess spare inlet and outlet are sealed according to regulations.

6. Check whether the explosion-proof positive pressure cabinet is installed with grounding components, and whether the spare inlet and outlet are properly sealed according to regulations.