petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- engineer
One of my favorite customers called a little while ago. One of his customers has asked he supply some "explosion proof" equipment. It was further stated to be C1D2, and also purged.
I sent him back to his customer to get some clarification, as it did not make a lot of sense what was being asked for.
There are some solenoid valves. As I read the code, solenoids are specifically allowed to be general purpose in a C1D2 area, so nothing special would be required there. It does not appear any seals would be required.
It appears that the purging system may actually be there to deal with some limit switches. I don't see any reason that the conduit to the limit switches can't be routed so that they are protected by the purge/pressurization system.
Am I missing something important here? As best I can tell the only electrical equipment I have to worry about are some solenoid valves and some limit switches.
I sent him back to his customer to get some clarification, as it did not make a lot of sense what was being asked for.
There are some solenoid valves. As I read the code, solenoids are specifically allowed to be general purpose in a C1D2 area, so nothing special would be required there. It does not appear any seals would be required.
It appears that the purging system may actually be there to deal with some limit switches. I don't see any reason that the conduit to the limit switches can't be routed so that they are protected by the purge/pressurization system.
Am I missing something important here? As best I can tell the only electrical equipment I have to worry about are some solenoid valves and some limit switches.