I had my leads hung together on a hook, but have since went to reels. Here is a question I sent Lincoln some time ago, with the anwser from a welding engineer. It doesn't address arc blow, but has some things to consider.
(Their software took all the capitals out of my message)
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Comment: i currently run a vantage 300
i am wondering about the difference between storing leads on horns together, separately, or on spools.
is there a noticeable effect on the machine? it seems to me there is, but i''ve been told it''s all in my head.
what does lincoln say about this?
thanks,
jeff
This may or may not cause a noticeable difference in the welding arc. It depends on the cable lengths, welding machine, electrode, and procedure. With short cable lengths (e.g. <50 feet), a big machine, and a smooth running electrode at medium amperage, there may not be a noticeable difference.
Looping the electrode and work cables together is better as it reduces the inductance. Basically, by doing this, it reduces the magnetic field losses. When looped separate, each creates its own strong magnetic field, and this energy does not make it down to the electrode. Looping them togther help cancel the + and - fields.
The best way to run long leads is lay them straight and flat with the electrode and work cables together.
Also, the machine needs to have enough voltage to overcome the resistance in the long cable run.
So, yes, there is a difference which you may notice with some electrodes at some procedures. I hope that answers your question.
IMHO, looping leads or storing on a reel does not contribute to arc blow, but amplifies voltage drop.
Unless, you are looping your leads on top of or around the material to be welded, thus magnatizing it.
Arc blow is caused by the arc and the material both having the same magnetic polarity, so they repulse each other and bend the arc.
Tim
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