Keep the work clamp clean, tght well grounded to the base metal being welded and close to the work and worry little IMO. For example the old rule of thumb to disconnect the positive term is not based on any real protection value. Many people do only that and weld away thinking that the lack of damage was due to their precautions. The electrons want to go from work to clamp or vice verse not wander off where they meet with resistance or lack the capacity to cope.
Doing some. AC TIG with high frequency? You might want to shied the more sensitive stuff.
__________________
http://vimeo.com/29896988
“Those that can make you believe in absurdities can make you commit atrocities.” Voltaire.
"There is grandeur in this view of life...." Darwin.
The mountains are calling and I must go.
“The earth has music for those who listen”
Shakespeare.
You Matter.
(Until you multiply yourself times the speed of light squared. Then you Energy)
“We’ve got lots of theories, we just don’t have the evidence’.
|