Discussion on the explosion protection of motors
Thread Content
Workshop No. 1 in our company was designed by the design institute as an explosion-proof area. However, this workshop has an open-frame structure, and the motors used for the water pumps are non-explosion-proof. When communicating with the design institute at that time, they said it wasn’t necessary to use explosion-proof motors. Yet, the motors of all the material pumps are explosion-proof. The water pumps and material pumps are located next to each other, only about one meter apart. Is this reasonable? What are the dangers of not using explosion-proof motors? Please be more specific in your answers, and don’t just refer to the regulations
It cannot be non-explosion-proof electrical equipment! This design firm is deceptive!
The workshop is designed as an explosion-proof area, so all electrical equipment in that area must be explosion-proof!
Design institutes should study *explosion protection theory* thoroughly. The fact that this area is explosion-proof indicates that flammable gases are being released, providing the combustible material one of the three elements necessary for an explosion. Moreover, there is air around, which contains oxygen; therefore, any ignition source can lead to an explosion. Ignition sources generally include electrical sparks, mechanical sparks, static electricity, and so on. If the electrical equipment in this area is not designed to be explosion-proof, it will create ignition sources. Designers may think it is related to the materials, but it mainly depends on the surrounding area and the overall explosion protection classification.
An explosion-proof motor is a type of motor used in flammable and explosive environments, and it does not generate electric sparks during operation. Since it is an explosion-proof workshop, it is possible for flammable and explosive gases or vapors to accumulate there. If any electric motor generates sparks, this could lead to a fire or explosion; therefore, electric motors used in this workshop must be explosion-proof as required by regulations.
The design institute explained that the space is open, so even in the event of a leak, no explosive gases will be formed
If you compare it with 50058, you’ll realize that those experts from that chicken-shooting site have deceived you; you’ve been badly ripped off
Since it has been designated as an area with explosion hazards, isn’t the design institute’s explanation that “the space is open, so even in the event of a leak no explosive gases will form” self-contradictory? ! According to Hou Xiaodi, it’s a good idea to study GB50058-92 more thoroughly! Then the company should make the necessary corrections as required.
The company in question can refer to the petrochemical regulations to determine whether a workshop is classified as an explosion-proof workshop. If it is, then all equipment and facilities within that workshop must be arranged in accordance with explosion-proof requirements; otherwise, some equipment will be explosion-proof while others will not, which would result in a situation where \"100-1=0\"!
All electrical equipment in Class A workshops must be explosion-proof. This design institute is really harmful and deceptive
Oh, I see. It seems like the design firm is taking advantage of its position now