Metal Floor & Welding
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  1. #1

    Metal Floor & Welding

    Guys I am not real sharp when it comes to electricity.

    I need opinions on the possible safety issues of MIG/TIG welding on
    a metal floor. Specifically the floor is 3/16" Steel sheets, 4' x 8', the
    area is about 56' x 56' .

    There is a ground from the metal floor to a copper ground rod driven into
    the earth about 7' deep FWIW.

    THANX!

  2. #2
    Join Date
    Mar 2014
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    Re: Metal Floor & Welding

    Quote Originally Posted by Artisan View Post
    Guys I am not real sharp when it comes to electricity.

    I need opinions on the possible safety issues of MIG/TIG welding on
    a metal floor. Specifically the floor is 3/16" Steel sheets, 4' x 8', the
    area is about 56' x 56' .

    There is a ground from the metal floor to a copper ground rod driven into
    the earth about 7' deep FWIW.

    THANX!
    As long as you're not naked and all sweaty you should be fine.

  3. #3
    Join Date
    Jun 2011
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    Aiken SC area
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    1,012

    Re: Metal Floor & Welding

    I concur with HT2, as long as your not sweaty. Many years ago I was welding on some conveyors, three levels up, it was hot as heck and I was sweating heavy and using an A/C welder. Could feel the electric running through me, just enough to feel. It got my attention for sure but no harm done. Bob

  4. #4
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    Re: Metal Floor & Welding

    When you're laying on steel in wet conditions a good pair of rubber gloves can really be your friend.

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  5. #5
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    Re: Metal Floor & Welding

    I agree but at the time, I was wearing leathers. Bob

  6. #6
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    Nov 2012
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    South Texas
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    Re: Metal Floor & Welding

    That looks pretty miserable, Dave.

    I worked inside a big jackup rig leg one time that had barnacles everywhere, it was pretty nasty in there.

  7. #7
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    Re: Metal Floor & Welding

    I worked in a shop on the third floor of a old factory that was 100% wood.

    We had diamond plate steel on the floor in the weld area and never had a problem.

    Relax.
    No worries.


    ...zap!


    I am not completely insane..
    Some parts are missing

    Professional Driver on a closed course....
    Do not attempt.

    Just because I'm a dumbass don't mean that you can be too.
    So DON'T try any of this **** l do at home.

  8. #8
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    Re: Metal Floor & Welding

    Quote Originally Posted by HT2-4956 View Post
    When you're laying on steel in wet conditions a good pair of rubber gloves can really be your friend.

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    Man....

    He gets all the fun jobs.

    ...zap!


    I am not completely insane..
    Some parts are missing

    Professional Driver on a closed course....
    Do not attempt.

    Just because I'm a dumbass don't mean that you can be too.
    So DON'T try any of this **** l do at home.

  9. #9
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    May 2010
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    Port Orchard, WA.
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    Re: Metal Floor & Welding

    I spent the majority of my life working on the deck of steel barges. Welding, carbon arcing. And the majority of that was in the pouring rain.
    Don’t pay any attention to me
    I’m just a hobbyist!

    Carl

    Dynasty 300
    V350-Pro w/pulse
    SG Spool gun
    1937 IdealArc-300
    PowerArc 200ST
    3 SA-200s
    Vantage 400





  10. #10
    Join Date
    Nov 2015
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    Beacon and Pawling, New York
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    1,121

    Re: Metal Floor & Welding

    Pretty adventurous for a hobbyist.
    Eventual master of the obvious, practitioner of "stream of consciousness fabrication". P.S. I edit almost every post because because I'm posting from my phone and my fingers sometimes move faster than my brain.

  11. #11
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    Mar 2014
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    Re: Metal Floor & Welding

    Quote Originally Posted by TimmyTIG View Post
    That looks pretty miserable, Dave.

    I worked inside a big jackup rig leg one time that had barnacles everywhere, it was pretty nasty in there.
    Yeah, having to climb or crawl around on stuff that's covered with barnacles doesn't make for the best of working conditions. Even the tiniest cut or scrape from that stuff will usually leave you with a sore, long healing wound.

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  12. #12
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    Jasper TX
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    Re: Metal Floor & Welding

    The key is, don't be the path of least resistance between the stinger and work clamp (ground lead). Keep the work lead as close to the welding area as possible and as others have stated, stay dry or otherwise insulated.

  13. #13
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    Mar 2014
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    Re: Metal Floor & Welding

    Quote Originally Posted by Artisan View Post
    Guys I am not real sharp when it comes to electricity.

    I need opinions on the possible safety issues of MIG/TIG welding on
    a metal floor. Specifically the floor is 3/16" Steel sheets, 4' x 8', the
    area is about 56' x 56' .

    There is a ground from the metal floor to a copper ground rod driven into
    the earth about 7' deep FWIW.

    THANX!
    Artisan,

    Getting more back to your immediate concerns....having the floor bonded to that copper earth ground rod is not a bad idea. I'm not saying that'll keep you 100% safe from everything that could occur but it's certainly not working against you.

    I think the biggest factor that'll effect any potential shock hazard on this job will be the moisture levels of the environment. If these floor plates are dry and you're not working in a high heat, high humidity zone to where you get yourself (and your clothing) all moistened up from sweating you shouldn't have any problems.

    But if you do find you're getting tickled from being sweated up you can always get yourself a small piece of rubber mat you can drag around with you to kneel or lay on to keep you electrically isolated. Even if I wasn't having a problem with getting shocked I'd probably like to have a piece of foam rubber mat to work off of just to make it easier and more comfortable on the body to spend long periods of time either laying or kneeling down on the floor to weld all those seams.

    Another thing I think I might do if I was faced with welding up that amount of floor seam-age would be to get a decent rubber tired mechanics creeper to lay on. Having used these before (to work off of face down) I can tell you that if you'll get some Styrofoam (like blue board insulation) an build the deck up 6 to 8 inches it'll make for a more ergonomic position to weld from for long periods.

  14. #14

    Re: Metal Floor & Welding

    Quote Originally Posted by HT2-4956 View Post
    When you're laying on steel in wet conditions a good pair of rubber gloves can really be your friend.

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    Yes indeed that cracked electrode holder can make you stand up at attention when you are standing in water.

    Sincerely,

    William McCormick
    If I wasn't so.....crazy, I wouldn't try to act normal, and you would be afraid.

  15. #15
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    Mar 2013
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    1,002

    Re: Metal Floor & Welding

    Quote Originally Posted by HT2-4956 View Post
    Artisan,
    Getting more back to your immediate concerns....having the floor bonded to that copper earth ground rod is not a bad idea. I'm not saying that'll keep you 100% safe from everything that could occur but it's certainly not working against you.
    I think it's the opposite. If the floor is NOT connected to ground then nothing can happen. But usually there are code requirements for things like this.

  16. #16

    Re: Metal Floor & Welding

    I wear the rubber gloves under the wet leather gloves.


    Sincerely,

    William McCormick
    If I wasn't so.....crazy, I wouldn't try to act normal, and you would be afraid.

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