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ac electrical question
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<blockquote data-quote="mitaker" data-source="post: 386415" data-attributes="member: 4314"><p>If it were me I would do this:</p><p>Check the incoming wire size to your electric meter.</p><p>Is it #2 Aluminum? If yes skip to answer 2. If it's any size larger go to answer 1.</p><p>1. Whatever the incoming wire size is rated for, I would install a new main breaker panel sized to match your incoming wire size ( 1/0 AL - 125 amp, 2/0 AL - 150 amp and so on). Then install a 125 amp breaker to feed the welder. Also keep in mind that the shorter run for power will keep voltage drop to a minimum thus keeping amperage draw lower. Using copper conductors will also be to your benefit. Lastly, use good stuff Square D QO (not Home line), or Cutler Hammer CH (not BR). It doesn't cost much more and it will be better for running loads at or near the capacity of the equipment.</p><p></p><p>2. You are screwed. Look into a portable generator (probably a trailer mounted unit) used on the interwebs might be able to pick one up for $3500-5000 for the size you need.</p><p>You cannot jump two electrical services together. This will almost certainly blow up the transformer that feeds your building.</p><p>Hope this helps.</p></blockquote><p></p>
[QUOTE="mitaker, post: 386415, member: 4314"] If it were me I would do this: Check the incoming wire size to your electric meter. Is it #2 Aluminum? If yes skip to answer 2. If it's any size larger go to answer 1. 1. Whatever the incoming wire size is rated for, I would install a new main breaker panel sized to match your incoming wire size ( 1/0 AL - 125 amp, 2/0 AL - 150 amp and so on). Then install a 125 amp breaker to feed the welder. Also keep in mind that the shorter run for power will keep voltage drop to a minimum thus keeping amperage draw lower. Using copper conductors will also be to your benefit. Lastly, use good stuff Square D QO (not Home line), or Cutler Hammer CH (not BR). It doesn't cost much more and it will be better for running loads at or near the capacity of the equipment. 2. You are screwed. Look into a portable generator (probably a trailer mounted unit) used on the interwebs might be able to pick one up for $3500-5000 for the size you need. You cannot jump two electrical services together. This will almost certainly blow up the transformer that feeds your building. Hope this helps. [/QUOTE]
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