Does welding cause an electric field ?

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I assume you are talking about electric arc welding.  While there are 
several types of arc welding (stick, MIG, TIG) they all give off strong EM 
fields which, at 4--6 feet, are probably plenty strong enough to hose your 
servers.  (Just for reference, stick is the least bad with TIG being the 
worst.  You're generating a high-energy plasma in all cases). You'd almost 
certainly have to reset the servers after welding.  However, the servers 
have built-in RF shielding so it might be safe if you were to turn the 
servers off and disconnect all cables to them (act as receiving antennae). 
before welding.  It would possibly be safe to arc weld if you were to, in 
addition to powering off and disconnecting the cables, wrap the servers in 
grounded aluminum foil before arc welding.  But then the equipment at the 
other end of the cables would be exposed to the high RF and that equipment 
 might get blown.  Hence arc welding in the location you describe would be 
a risky proposition even with the precautions above.  If you have to do arc 
welding, move the servers and all cables at least 25 feet (my guess) away 
and shield both the servers and the cables as described above.  But no 
guarantees!

If you can do the welding with an oxyacetylene torch rig, however, then all 
should be safe, even with everything powered up and running and this is my 
recommendation.  Oxy welding is tricky and restricted to relatively thin 
sections of metal, so make sure you get an experienced person to do the 
welding.

Date: 2023-04-10     hits: 479    Return