Troubleshooting of electric actuator valve mechanism in explosion-proof situations
Thread Content
The electric actuator valve mechanism used in explosion-proof situations malfunctions during operation. Is it possible to open the cover and check (at the junction box)? Opening the cover means losing the explosion-proof protection, but it is inconvenient to determine the fault without opening the cover, which will have a certain impact on production. Can I open the cover for inspection?
We can open it if it is natural gas. However, before opening, we must cut off the control power and power power and strictly check the natural gas concentration in the working area. But how to deal with the situation where other media are not known?
Of course, whether the junction box is explosion-proof or not, it is best to open it after a power outage. Opening the explosion-proof junction box will of course affect the explosion-proof requirements. If repairs are really needed on site, and it is indeed unsafe, the only option is to stop and inspect. If safety is confirmed, repairs can be made if visible dangers are eliminated.
The explosion-proof junction box must be powered off and opened!