 OT: 230v welder wiring, using a dryer circuit |
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| bondo |
 Mar 23 2005, 04:23 PM
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Practicing my perpendicular parking  Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California  |
I just got a millermatic 175 welder. 230v, 19.5 amps. I'm going to make an extension cord for it and was wondering what guage wire I should use. Is 12ga enough? (going about 30 feet, just enough to get all the way around the garage, and into the driveway a bit)
Also, the dryer outlet is neutral grounded. Should I use it as is or add a second outlet with a real ground? |
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| bondo |
Mar 23 2005, 05:34 PM
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Hmm, here is my understanding of neutral grounding...
The dryer has 2 circuits.. elements run on 230, timing stuff runs on 115. To get both it needs 2 hots and a neutral. In order to avoid running a 4th wire, they just run the neutral to the case of the dryer and call it a ground. You can't use the ground as a neutral, but I guess you can use the neutral as a ground. (using the ground as a neutral where the ground is connected to plumbing would cause your pipes to rust to pieces) The welder only has 3 wires on it.. I would think that all of the welder would run on 230v, and the thrid would exclusively be a ground for safety. (unlike the dryer) So what I'm really asking is: Is the neutral ground close enough to a regular ground, or should I add a second plug by my dryer that uses a regular ground? (the second plug could cause problems because it would then be possible to run the dryer and the welder at the same time... I might have to add a DPDT switch.. then it starts getting expensive) |
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Posts in this topic
bondo OT: 230v welder wiring Mar 23 2005, 04:23 PM
Series9 Neutral and ground are exactly the same.
Use 3 co... Mar 23 2005, 04:30 PM Root_Werks My wife's Dad has a really nice welder, he had... Mar 23 2005, 04:31 PM Travis Neff I think you want the 8 gauge wire for that, I used... Mar 23 2005, 04:32 PM Twystd1 Note: Ground and Neutral are NOT the same thing.
... Mar 23 2005, 05:01 PM Travis Neff So your suggestion of a separate ground, where the... Mar 23 2005, 05:16 PM Series9 <... Mar 23 2005, 05:28 PM Series9 Mar 23 2005, 05:42 PM Travis Neff If the welder has two hot leads and a neutral with... Mar 23 2005, 05:54 PM bondo Mar 23 2005, 06:49 PM bondo I just checked the circuit diagram for the welder.... Mar 23 2005, 07:00 PM Series9 Mar 23 2005, 07:28 PM Travis Neff http://www.914world.com/bbs2/h... Mar 23 2005, 08:06 PM bondo I understand that it will work fine if I just wire... Mar 23 2005, 08:19 PM Series9 Mar 23 2005, 10:14 PM jonwatts http://www.914world.com/bbs2/ht... Jan 16 2006, 01:51 AM sgomes I've got an idea. Why don't you just buy ... Jan 16 2006, 07:50 AM sj914 That extension cord would work, but I think the pr... Jan 16 2006, 08:42 AM jonwatts Jan 16 2006, 09:29 AM 914GT ... Jan 16 2006, 09:37 AM r_towle the industry has changed from 3 wire to four wire.... Jan 16 2006, 10:58 AM jd74914 <... Jan 16 2006, 11:27 AM fiid Nothing electrical here, but for MIG sets, please ... Jan 16 2006, 11:28 AM jonwatts <... Jan 16 2006, 11:55 AM 914GT I know my local home depot has 4-conductor #6 flex... Jan 16 2006, 12:17 PM
9146986 Jan 16 2006, 01:22 PM |
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