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  1. junmal

    Mobile DC Welding Machines

    Anybody familiar with this machine which is powered by a diesel engine generator and produce DC output in the range of 400 amps to 500 amps and manufactured by Miller and Lincoln Electric. My question: is there a need to ground or earth this unit as what is being done here in our construction...
  2. junmal

    Ground/Earth Resistance Standard Measurement

    ausgen, rbulsara & jghrist, Thank you all for the valuable info you provided. Jghrist, if not asking too much, could you explain more why it's not anymore necessary to provide ground rod for the portable genset units. Because what we're doing here is that to drive a 600mm ground rod...
  3. junmal

    Ground/Earth Resistance Standard Measurement

    Hello All, I am an electrician working for a construction company here in the middle east constructing a big gas to liquid plant. We have installed in the construction site several diesel engine generators ranging from 50 KVA to 900 KVA units as part of temporary electrical power supply...
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