HOW DOES AC WELDING DIFFER FROM DC WELDING

[FTG-05]

Ask Shield Arc about how he likes his. I can't remember how much the TBN discount from Mark at Everlast was, but it was a fair chunk. Send him a PM

I sent Mark (@ Everlast) and PM about both the 200ST and the 300 unit. Haven't heard back yet.

Thanks!

 

[Shield Arc]

Haven't heard back yet.

Mark just posted over on Welding Web that he has been really busy with Everlast projects. You could always give him a call.

 

[Underdog57]

Shield Arc, what happened to your Everlast PA 300? I noticed you removed it from your signature.. Just curious because I have one!

 

[Shield Arc]

Shield Arc, what happened to your Everlast PA 300? I noticed you removed it from your signature.. Just curious because I have one!

I temporarily traded it to my brother-n-law for his PA-200ST. He was having trouble with the lift arc for Tig welding. But I may not give him his PA-200ST back. I love this welder! :thumbsup:

 

[Underdog57]

I temporarily traded it to my brother-n-law for his PA-200ST. He was having trouble with the lift arc for Tig welding. But I may not give him his PA-200ST back. I love this welder! :thumbsup:

Thanks for easing my mind, cause I only have 1 Welder!!!! Ha......Ha! :laughing:

 

[Mark @ Everlast]

Will try to pm you now if you sent me a message.

FWIW,
I do have SOME plain PowerArc 160 welders. These are the stick welder units without TIG. KOuA's machine would be basically the same. Not like the 160STH. We produce a few from time to time to meet special requirements and have a number in stock. More like the old PA200, but not as powerful as the 200ST units.

 

[Ed of all trades]

Hay Mark How much is the discount for TBN members? Am thinking about a few of your welders, haven't settled on one yet, still thinking. Ed

 

[stuckmotor]

k0ua,
Thank you for the explanation. I've read about 50 milliamps being enough to kill a person before and wondered where it would have to be applied to do so.

Some things to keep in mind. When your skin is wet, your gloves soaked thru, be CAREFUL!. If you don't have to weld, consider doing it some other time. If you have to, try real hard not to "complete the circuit". In other words, don't touch both sides of circuit at the same time. Don't lean on that bush hog and touch the electrode at the same time. The OCV (Open Circuit Voltage) measured between ground and stinger is not supposed to be over 80 volts, but 80 volts is enough to knock your **** stiff if you are wet.

On a dry fall day you could touch both stinger and ground and probably never feel it, depending on how calloused your hands are. Of course if you just touch ground and never touch the stinger, no current will flow thru your body. Also if you just touch the stinger and not the ground clamp, or the weldment, then no current will flow thru your body either.

Welding is just like working around any other source of electricity, the thing that needs to be foremost in your mind is "don't become part of the circuit". When I touch an electrode to steady it when striking the arc, I make it a point to not be touching the grounded workpiece. I also make it a point to not have wet gloves or wet skin. Dry calloused skin has a high resistance to the flow of current, but wet skin has a very low resistance to the flow of current.

Also keep in mind that a welders source of current is not very current limited from the point of view of the human tolerance to current flowing across the body. They tell us that at as little as 50 milliamps is enough to kill you. That is 50 thousandths of 1 amp. We often set our welder to deliver over 100 amps. That is thousands of times more than what is needed to kill us.

 

[stuckmotor]

Sure! But with good welding gloves on. Back when I was working I welded a lot with just White Ox cotton gloves. Used those gloves mostly for rigging, but they worked OK for a few quick welds.

Shield Arc,
Thanks again. I still remember the first time I got a really noticable bite from a buzz box. That must have been over 30 years ago.

 

[Mark @ Everlast]

If you weld long enough, you will eventually feel the tingle...especially if you live in the south and weld during the summer. Tingle in the Dingle makes for an interesting day.