防爆型電気機器の日常点検項目

Explosion-proof electrical equipment is essential in hazardous environments, but a lack of comprehensive maintenance over time can turn it into a risk, negating its preventative purpose.

1. Conduct a review of general inspection procedures.

2. Assess junction boxes, incoming line devices, protective seal boxes, angled connectors for tightness, secure mounting, and adherence to explosion-proof standards.

3. Evaluate the level of corrosion on motors, 電気機器, instrument panels, and the equipment itself, ensuring screws are securely fastened and interlock mechanisms function properly.

4. For oil-immersed explosion-proof equipment, verify that oil level indicators, drainage systems, and gas venting structures remain clear and leak-free, with an installation incline not exceeding 5 度.

5. Ensure that the internal air pressure of pressurized explosion-proof equipment meets or exceeds the values indicated on the equipment label, and that the pressure cut-off alarm system is responsive.

6. Check cables for looseness, vibration-induced damage, and signs of corrosion.

7. Beyond explosion-proof specifications, maintain the equipment in optimum condition in accordance with general electrical equipment standards.