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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
Fixing the burnt breaker was *much* easier than I expected. I decided to simply remove the breaker entirely from the box; connected the incoming wires directly to the loads with wire nuts. Now, before you blanch or jump to reply to such an insanely stupid action... here is something I didn't know about the system until yesterday. This house originally had a fuse box. About four years ago we had the entire box replaced with a proper breaker box (tired of buying those d*mn fuses!) It turns out that the electrician fed that little outdoor box through a 30A breaker in the main panel! So there were *two* breakers on that circuit, one in the main panel, one in the outdoor box. I just removed the one in the outdoor box. To restate: The circuit *has* a 30A 220V breaker, it's in the main panel and has been for four years. Again, many thanks to Stuart. Without your suggestion I probably would not have taken the time to look more closely at the main panel connection. Best -- Terry ....who is now overjoyed to be able to rewire his new welder from 120 to 220V...life is good... |
#2
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On Apr 25, 4:27*am, Terry wrote:
Fixing the burnt breaker was *much* easier than I expected. *I decided to simply remove the breaker entirely from the box; connected the incoming wires directly to the loads with wire nuts. Now, before you blanch or jump to reply to such an insanely stupid action... here is something I didn't know about the system until yesterday. This house originally had a fuse box. *About four years ago we had the entire box replaced with a proper breaker box (tired of buying those d*mn fuses!) *It turns out that the electrician fed that little outdoor box through a 30A breaker in the main panel! So there were *two* breakers on that circuit, one in the main panel, one in the outdoor box. *I just removed the one in the outdoor box. To restate: *The circuit *has* a 30A 220V breaker, it's in the main panel and has been for four years. Again, many thanks to Stuart. *Without your suggestion I probably would not have taken the time to look more closely at the main panel connection. Best -- Terry ...who is now overjoyed to be able to rewire his new welder from 120 to 220V...life is good... Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul |
#3
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), "
wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. |
#4
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
Terry wrote:
On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), " wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. Generally cascading breakers are sized to trip closest to the load. If the 30A tandem breaker will protect the wires downstream, I'm not going to get picky. Code might be another issue but I'm not going there tonight. Wes |
#5
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On Sat, 25 Apr 2009 19:07:17 -0400, Wes wrote:
Terry wrote: On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), " wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. Generally cascading breakers are sized to trip closest to the load. If the 30A tandem breaker will protect the wires downstream, I'm not going to get picky. Code might be another issue but I'm not going there tonight. Wes The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry |
#6
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
"Terry" wrote in message
... On Sat, 25 Apr 2009 19:07:17 -0400, Wes wrote: Terry wrote: On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), " wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. Generally cascading breakers are sized to trip closest to the load. If the 30A tandem breaker will protect the wires downstream, I'm not going to get picky. Code might be another issue but I'm not going there tonight. Wes The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. |
#7
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe"
wrote: The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. Best -- Terry |
#8
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
"Terry" wrote in message
... On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe" wrote: The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. Best -- Terry If the lathe has an emergency stop switch probably not. |
#9
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On Sat, 25 Apr 2009 16:50:43 -0500, Terry
wrote: On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), " wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. Well they DO make 30A 40A and 50A single-pole breakers, but you aren't going to find them 'In the wild" witout a reason. They are special order only. The only common usage for a 30A single pole is for a Travel Trailer outlet. Now that I know you have enough panel, the next project is to bump up the feeder out to the garage. Cut the voltage drop, and you can run a plasma cutter and let the compressor kick on at the same time. If you have 3/4" conduit out to the garage you can get 3 #6 THHN Copper and a #10 ground in 3/4" conduit, and depending on how you derate (underground or free air) 50A to 60A - that's plenty for a garage sub. Bigger pipe is always better, and for long distances you can run big Aluminum wire without breaking the bank. -- Bruce -- |
#10
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
Terry writes:
Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. If you have machinery spliced in -- aka NO plug/jack in sight of the machinery; both the Code [afaik..] and more importantly, common sense requires same. -- A host is a host from coast to & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 |
#11
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Breaker burn out fixed, my lathe runs again!
On Sun, 26 Apr 2009 12:31:26 -0500, Terry
wrote: On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe" wrote: The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. Not needed - just have that garage door unlocked and/or open while welding, so you can make the run if an "Oh ****!" moment happens. Or bump up the garage service, and put a sub-panel out in the garage, you can cut the welder power off there. As an aside, that old outside breaker box was probably installed because they were tapping into the old fusebox BEFORE the Main Switch and fuses, or before the other fuses if it was a "six-fuse no Main" setup as was typical. As long as the wires from the unfused meter socket to the new breaker were under 10 feet, it was allowed. That way they got an extra circuit to send out to the garage, and avoided those persnickety fuses which tend to pop a lot when stick welding. Of course, it can cause severe problems if the old A-base Power Meter Socket and the #10 Type R service riser wires are only good for 30A, and you try pulling 80A or more through them. Things start getting real hot... (Some of the old power meters and meter sockets were good for 70A to 100A and can be left in place if they are in good shape, and you don't want to mess around with permits and inspections... But an upgrade to modern THHN riser wires and a more modern breaker panel with a real Main would definitely be called for.) -- Bruce -- |
#12
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Breaker burn out fixed, my lathe runs again!
On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe"
wrote: "Terry" wrote in message .. . On Sat, 25 Apr 2009 19:07:17 -0400, Wes wrote: Terry wrote: On Sat, 25 Apr 2009 11:58:45 -0700 (PDT), " wrote: Terry. I hope the 30A breaker is a double breaker so both sides of the 220 are opened when a fault occurs. Paul Yup. No worries. Generally cascading breakers are sized to trip closest to the load. If the 30A tandem breaker will protect the wires downstream, I'm not going to get picky. Code might be another issue but I'm not going there tonight. Wes The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. When it was installed the inside box was a full fuse box, if I remember the OP's explanation. It was an "expander" box to add an extra 220 line . |
#13
Posted to rec.crafts.metalworking
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Breaker burn out fixed, my lathe runs again!
On 2009-04-26, Terry wrote:
On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe" wrote: The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. Well ... I understand that circuit breakers are designed to interrupt power during fault conditions, not to be used regularly as a switch, so they might develop problems over time if you use them that way. In addition -- sometimes having that disconnect *right* *there* instead of around the corner in the garage lets you cut power in an emergency situation just that much more quickly. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#14
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Breaker burn out fixed, my lathe runs again!
On 28 Apr 2009 23:40:20 GMT, "DoN. Nichols"
wrote: On 2009-04-26, Terry wrote: On Sun, 26 Apr 2009 10:04:40 -0700, "Bob La Londe" wrote: The outside box and the inside panel 30A breakers are about 18 inches apart.... Best-- Terry Might have been better to install a disconnect instead of a mini breaker panel then anyway. That does bring up a point; is there some reason that I might need a disconnect on this outside box, considering that I can walk about twenty feet round the corner, into the garage and flip the breaker anytime it's necessary? Just wondering if there's something I'm not considering. Well ... I understand that circuit breakers are designed to interrupt power during fault conditions, not to be used regularly as a switch, so they might develop problems over time if you use them that way. In addition -- sometimes having that disconnect *right* *there* instead of around the corner in the garage lets you cut power in an emergency situation just that much more quickly. Enjoy, DoN. Around here the rule is "within sight" and has recently been amended such that sight line through a window is no longer acceptable (as indicated last fall when my A/C system was replaced). Gerry :-)} London, Canada |
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