What are the special requirements for ATEX explosion proof motor maintenance

Special requirements for ATEX certificate explosion proof electric motor maintenance

Atex explosion proof motors are widely used in the industrial field, especially in flammable and explosive environments, where their safety performance is particularly important. Therefore, during the maintenance of explosion proof motors, a series of special requirements need to be followed to ensure the normal operation of the ex motor and the safety of personnel.

一. Preparation before maintenance

Before repairing a three phase asynchronous explosion proof induction motor, first cut off the power supply and ensure that the ex motor stops running completely. In addition, the maintenance site must be cleaned and flammable and explosive items must be removed to prevent sparks from causing accidents. Maintenance personnel should wear anti-static work clothes and tools to reduce the possibility of static electricity.

二. Special requirements during maintenance

1. The disassembly of ATEX explosion proof motor should be carried out in a spark-free and static-free environment. During the disassembly process, avoid using metal tools to knock to avoid sparks.

2. Carefully check the key components of the explosion proof electric motor, such as windings and bearings. The windings should not be damaged or short-circuited; the bearings should rotate flexibly without jamming. If any abnormality is found, it should be replaced in time.

3. During the maintenance process, attention should be paid to maintaining the explosion-proof performance of the motor. Clean and inspect the explosion-proof joint surface to ensure its smoothness and flatness. If the joint surface is damaged or rusted, it should be handled in time.

4. Check the sealing performance of the atex motor. Check whether each seal is intact and whether there is aging or cracking. If necessary, the seal should be replaced to ensure the sealing performance of the motor.

三. Testing and acceptance after overhaul

After the overhaul is completed, the explosion proof motor should be fully tested and accepted. First, the ex motor should be tested under no-load to observe whether it runs smoothly and without abnormal noise. Then, a load test should be performed to check the performance of the motor under load. Finally, the explosion-proof performance of the motor should be tested to ensure that it meets the relevant standards and requirements.

四. Summary

The maintenance of ATEX explosion proof motors is of great significance to industrial safety. During the maintenance process, special requirements should be strictly followed to ensure the normal operation of the ex motor and the safety of personnel. At the same time, maintenance personnel should have professional knowledge and skills, continuously improve the maintenance level, and provide strong guarantee for the safe operation of explosion-proof motors.