How should we understand the requirement, per the specifications, to install explosion-proof flexible pipes and explosion-proof isolation seal boxes when cables are led out from field instruments?
Thread Content
When the cable is led out from the field instruments, according to the specifications, an explosion-proof flexible tube and an explosion-proof isolation seal box should be installed. What does this mean? As a general practice, an explosion-proof flexible pipe is definitely used; then why is an explosion-proof isolation seal box also needed? Share some specific examples of people who have used it, please upload them. I’m learning too* learning* ah
Is the explosion-proof isolation seal box simply the connecting component between pipes (wiring ducts)? The scientific name for this thing seems to be some kind of explosion-proof isolation box. For now, we no longer use this; instead, we use a pipe bender to bend the pipes, and the connections between the pipes are made using explosion-proof clamps or explosion-proof couplings. That wiring box isn’t suitable for passing cables through, so we’ve abandoned it, although we’ve seen other factories still using it. Between the electrical interfaces of the pipes and instruments, flexible hoses can be used, as well as explosion-proof flanges; the appropriate choice should be made based on the specific conditions at the site. It's just my personal opinion; feel free to discuss it in depth.
The explosion-proof isolation seal box is probably the cable gland. As mentioned on the second floor, it’s fine when there is a single cable, but when there are multiple cables, tee or quad cable glands may be needed; therefore, flexible pipes and cable glands are generally used together.
It depends on the situation. If it’s about wiring, it’s better to use a wiring box, as problems are more likely to occur
I see that some people’s comments are a bit off, so I’m attaching a picture for you to take a look at; have you used it before?
Mainly, I haven’t used it before, so I’m not quite sure how to use that box in practice
In this diagram, the first one is equipped with a drain, and it can be connected to the front end of a flexible tube. The second function is branching; it can be used to divide two cables, just as mentioned above.
You can take a look at the installation manual for self-control systems; the function of the Y-shaped explosion-proof isolation seal box is to fill one side with explosion-proof putty after the wiring is completed, thereby serving to isolate water and flammable gases.
Can you take some pictures of the app and upload them to take a look?
Search on Baidu by yourself; it’s the 2012 version