our sub arc has had an electrical leak of about 4.5 volts for a few months(maybe since we got it) and maintenance couldn't isolate it and as a oh and s committee member
i wouldn't let a junior employee keep working when if they touched the welded item and the tower they received a shock of varying degrees. a guy near retirement thought its ok to continue working(management said that if he wants to weld i couldn't stop him, you gotta pick your battles) well after a few hours of diagnosis by my self i isolated the circuit and had no explanation but a 'leak' from the source. it turns out that Lincoln has just discovered a leak in the high frequency in the ac circuit.
any other people with this problem or power source if you could put in your experiences. Lincoln says that they will have a solution in a short time (no pun intended).
please keep it simple for me please. you can use all those five dollar words for others that may chime in but I'll need the edges taken off for me to understand.
thanks.

also we are having transverse cracks in our stops, i will get more info on the wire flux and other particulars but we've never had them before just started popping up in the past few months.
thanks
darren