Explosion-proof electrical equipment is designed and manufactured according to national standards, and will not cause the explosion of the surrounding explosive environment under specified conditions. There are gas and coal dust underground in coal mines. In order to prevent explosions, it is necessary to limit their content in the air on the one hand; on the other hand, to eliminate all ignition sources and dangerous temperatures that can ignite gas and coal dust. Sparks, arcs, hot surfaces, and hot particles may occur in electrical equipment during normal operation or in an accident, and they can all be sources of ignition for mines and coal dust. Therefore, the use of explosion-proof electrical equipment in coal mines is of great significance to prevent gas, coal dust ignition and explosion accidents.
Because explosion proof vfd electrical equipment is inevitably corrosive to hazardous chemicals in the chemical production process, as well as wind and sun, bad weather conditions, etc., if explosion-proof electrical equipment cannot be maintained in time, its explosion-proof safety performance will inevitably be greatly reduced. This is also one of the main hidden dangers of explosion accidents in the production process of some chemical enterprises. Therefore, in the daily maintenance, if the explosion-proof electrical equipment is found to be corroded, corresponding measures should be taken in time, and if necessary, the equipment should be updated.
In the process of maintaining types of flame proof equipment, maintenance technicians must pay attention to the safety evaluation of explosion-proof electrical equipment, and timely repair the failure or hidden danger of equipment that can ensure normal operation, and the equipment that needs to be updated must also be replaced in time. In the safety evaluation of maintenance inspection results, in order to ensure the objectivity of the evaluation, there should be a scientific evaluation basis, clarify the evaluation content, and correctly treat the importance of safety evaluation to the safe operation of explosion-proof electrical equipment.
At the same time, our power control equipment company suggests that the safety evaluation should pay attention to the following points: 1. For the safety evaluation of explosion-proof electrical equipment, the evaluation should focus on whether the explosion-proof parameters and explosion-proof structure have changed; If the aging of insulating materials and equipment shells may cause potential danger to the safe operation of the equipment, it should be updated in time according to its reliable service life and usage conditions, and its service life should not be extended; 3. The evaluation of its electrical performance is also a key point of the evaluation work, because the reduction of electrical performance is also easy to cause harm to explosion-proof electrical and other related equipment.