Do I have to insulate the safety switch ? - 08/08/02 11:18 PM
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>I would like to start by saying how much I like your web site. I have worked as a maintenance electrician for a number of years, without any formal training. I have advanced to the position of facility engineer. I have been asked to research the NEC and find an answer to a possible problem. If possible could you provide some insight to following question???
I have a welding shop that was built in the mid 70's. The 480 volt, 3 phase, Delta fusible safety switches were mounted on the utility piping runs. The safety switches are attached to the piping using unistrut and pipe clamps. The piping consists of one air, one natural gas, one oxygen and one welding gas pipe. My question is " do I have to insulate the safety switch from the pipe or can I leave it as is"???
Harold Filer
Fabrication Facility Engineer
I have a welding shop that was built in the mid 70's. The 480 volt, 3 phase, Delta fusible safety switches were mounted on the utility piping runs. The safety switches are attached to the piping using unistrut and pipe clamps. The piping consists of one air, one natural gas, one oxygen and one welding gas pipe. My question is " do I have to insulate the safety switch from the pipe or can I leave it as is"???
Harold Filer
Fabrication Facility Engineer