In a residential setting
Was it 3 Phase?
Yipper
Wow not often you find a house on 3 phase
Was it surrounded by commercial buildings
Nope in a historical district 100 year homes some K& T was still in use fun trying to explain a wild leg to a client can really be exciting
LOL I bet. good find Charley
Of course the A/C unit was the only 3 phase used at the home so I had to ensure the wild leg did not get used in the sub-panel Geez I had to exceed the SOP and use my meter;-)
LOL oh no not Meter usage , I wonder how many actually carry one .
Or more importantly, know how to properly use one! 
Looks like it got a little warm at some point. Or just dirty…?
Nope had some anti oxide grease applied owner was a electrical engineer
One would think he would known about the wild leg.
The owner/seller(electrical Engineer) did know the buyer did not:D:D
I had 3 phase at a farm house once and at a loft conversion from what was at one time a commercial building.
No easy to inspect if not used to it.
I see 3 phase in residential about once a month. Typical scenario - older home (55-80 years old) on residential street backing up to a main block of Commercial businesses.
Usually the AC or detached workshop only thing besides main panel on 3 phase. To me the hard part is quite frequently the fuses are turned backwards so you can’t verify proper size without pulling them.
Not common here at all I did a double take when I looked at the name plate.
Sure was nice to meet you in person wished we could of had more time could of talked for days
Good Meeting you too Charley. I go to Dallas about 5-6 times a year. Maybe one of the next times I go, I can ride with you on an Oki job.
I have missed Tying up with Barry Adair the last 4 times I’ve been in Dallas and was staying less than 10 miles away froom him.
Charley, was this 3-phase 110/208 just for the A/C?
Why not for the whole home?
Was it color coded Black/Red/Blue/White/Green?
Was there a balanced load on all three legs or was there a variable?
I know, I ask to many questions. ;)
Marcel -
Most 3 phase panels I see are color coded Black-Black-Black
OR are you asking about the AC wires?