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-   -   15amp compressor/ 30 amp outlet (http://www.diychatroom.com/f18/15amp-compressor-30-amp-outlet-175340/)

s2000CR 03-23-2013 06:51 PM

15amp compressor/ 30 amp outlet
 
I purchased a sears 60 gal compressor and wanted to verify that it is wired accurately. I have about a 12 ft. wire from the outlet to compressor.

It turns on but Im not sure that it is correct.

http://i305.photobucket.com/albums/n...psb7bb0720.jpg

http://i305.photobucket.com/albums/n...pse15d3156.jpg

http://i305.photobucket.com/albums/n...ps8fb8188a.jpg

mpoulton 03-23-2013 06:54 PM

Looks mostly good, but what's up with the tape and crimp connector (?) at the compressor end? Also technically that is an ungrounded receptacle, and the middle prong is neutral. But it goes to the same place in the panel that a grounding conductor would, and you do not have any line-to-neutral loads, so it is electrically identical to a properly grounded setup.

jaydevries 03-23-2013 07:12 PM

correct me if i am wrong but the neutral and ground do not always go to the same place in a panel unless it is a bonded panel which all secondary panels all grounds and neutrals are isolated

s2000CR 03-23-2013 11:10 PM

Quote:

Originally Posted by mpoulton (Post 1144154)
Looks mostly good, but what's up with the tape and crimp connector (?) at the compressor end? Also technically that is an ungrounded receptacle, and the middle prong is neutral. But it goes to the same place in the panel that a grounding conductor would, and you do not have any line-to-neutral loads, so it is electrically identical to a properly grounded setup.

The crimp connectors are fastend on the wire correctly, I just added black tape to be extra safe.

s2000CR 03-23-2013 11:11 PM

Quote:

Originally Posted by jaydevries (Post 1144167)
correct me if i am wrong but the neutral and ground do not always go to the same place in a panel unless it is a bonded panel which all secondary panels all grounds and neutrals are isolated

I have no idea.

So is my green wire improper to its location?

micromind 03-23-2013 11:52 PM

Tye compressor is connected properly.

If there is only one panel, then the neutral and ground are the same busbar, and thus, the compressor is properly grounded. The only possible code issues are that the wire from the panel to the receptacle most likely has black, red and white. White is not legal for a ground. But I wouldn't worry about it, it's still a valid ground. Another nit-picky issue would be that the receptacle is rated for 125/250 volts, the nit-picky proper one would be 250 volts only.

I strongly suspect that there is only one panel, as it has been a code violation to use a 3 wire dryer receptacle on a sub panel for many years.

If it were my house, I would use it exactly as you have it connected.

Rob

P.S. The fact that a 15 amp motor is connected to a 30 amp circuit is of no issue. It's actually code compliant.


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