For electrical topics that do not match any of the other headings.
Have a client that wants a back up generator and ATS. Average house, 200A service. Doesn't want to spend the $$ on what I recommened, a 20KW whole...
I have not seen the unit yet but a customer told me his A/C guy was supplying his home with 2 - 208V, 15AMP units. This is a residential single phase...
Our company is having internal discussions ( arguements) about installing MC Cable into circuit breaker enclosures from the top. The discussion is...
Hello, I am doing some work on a studio and they have a large amount of hum on the A/C lines. Now I know grounding is an issue as the the studio is...
We bought a Kwikool Portable A/C unit for emergency situations in our server rack closet. This is a 240v single phase with a cord that has a hot,...
I was working in a existing GE panel, remove breaker and about drop it. I had what seems like machine oil on my hand, alot of the breakers are...
Got called to a multi-million dollar home (that's not really saying much in the Bay Area). There was an electrical hum in the master bedroom, such...
What constitutes "low-voltage" for a home appliance, namely a refrigerator, in UL 250?
How exactly do you go about testing to see if your ground rod is less then 25 ohms to earth? Put one lead on the rod and the other streached out and...
I am converting a commerical business from overhead to underground. Simply re-feeding It. It has an original CT cabinet feed by parralled 350...
I am troubleshooting a circuit which part of isn't working properly. It originates from a 100 Amp subpanel that I have already redone because it was...
I have a job where there was a kitchen fire. The owner is a friend & this is a rental. We replaced all knob & tube in kitchen & bathroom above. I...
First, a big thank you to everyone that helpe me through my 3 phase pump problem. I made the installer do his job as he should have and we are in...
Are we allowed to have romax and MC connectors behind sheetrock? At places like a recessed panel in a wall.
This is the second time Im trying this because I did nt see my post come up.If you have a 3 phase 208 service,and a motor with a schematic,one chiose...
I've got an RFI that I'm scratching my head over, and I hope some of you who deal with this stuff in the field can help me out. Our drawings include...
I'm generally a pretty good basic level troubleshooter, so when I make a mistake, it's embarrassing, especially when I sit and think about it ;) . I...
Hi, I've installed/programmed several (used) Omron V1000s, but this one is giving me a headache. Max. frequency parameter is for some reason locked....
I have a job coming up where I need to put six receptacles in a suspended ceiling. I was looking at using Caddy 512HD,with a 1.5 4X4 and a 5/8...
If you have a 208 wye service, and a motor with a Wye Start or Delta Run for a schematic. Which one should you connect to.
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