Welding machine insulation resistance
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Mechanical safety standards require that the insulation resistance between the primary and secondary windings of a welding machine, as well as between the windings and the enclosure, be not less than 1 megohm. As I don’t know much about welding machines, I’m seeking help from experts. My question is: 1. How do I measure this insulation resistance? What are the specific steps? My understanding is to unplug the power supply, set the welder to position 0, connect the L terminal of the 500 MΩ megohmmeter to either of the power wires, and then connect the other E terminal to the welder’s casing in order to measure the resistance. Is this method correct? 2. Are the insulation resistance measurement methods the same for all types or categories of welders?
For insulation resistance testing, you should consult an electrician
The key is to understand how to do it; of course, the electrician will handle the actual work