randynavarro Posted March 13, 2010 Report Posted March 13, 2010 I couldn't quite tell if these SEC's were size 1 or 1/0. What do you say? Click to Enlarge 59.53 KB Click to Enlarge 42.74 KB And then regardless of the size, the SEC's are too small for a 200 amp breaker, yes? What am I missing?
Jim Katen Posted March 13, 2010 Report Posted March 13, 2010 I couldn't quite tell if these SEC's were size 1 or 1/0. What do you say? And then regardless of the size, the SEC's are too small for a 200 amp breaker, yes? What am I missing? I'd have to guess #1. Way too small. Someday, when we meet, remind me to smack you upside the head for sticking that tape measure into a live panel. - Jim Katen, Oregon
Brandon Whitmore Posted March 13, 2010 Report Posted March 13, 2010 It looks like a sub panel. I see this often, start to write it up, and then remember I'm staring at a sub- panel. You sure the service disconnect is not outside, with a main breaker rated at 125 amps. This would be a common set up for a townhouse in this area. Jim-- it was a dead panel-- Randy flipped the switch outside first. [^]
randynavarro Posted March 13, 2010 Author Report Posted March 13, 2010 I know, I know. I didn't have anything else for scale; no pencils -nothing. Yes, it's a sub. And like you, Brandon, I have to re-load my thoughts and realize this is ok.
Erby Posted March 13, 2010 Report Posted March 13, 2010 I had the same thought you did, Jim. But I'm way too far away. -
Marc Posted March 13, 2010 Report Posted March 13, 2010 I have a piece of #1 THWN copper in my shop that measures 7/16". Marc
Jack Davenport Posted March 13, 2010 Report Posted March 13, 2010 There is no way to determine the size difference between a #1 awg and a #1/0 awg from a picture on the internet! Those 2 conductor sizes are way too close in size to determine in a picture and anyone who does is just guessing! One can not determine the conductor size by using a tape measure either. The various types of conductor insulation prevents this as the insulation is made from different materials of different thicness. I think Brandon may hit the nail on the head. You said the disconnect is outside -What SIZE overcurrent is in the disconnect? This will determine what size conductors can be ran to the interior panel. That 200 ampere breaker in the panel is just a disconnecting means,provided there is overcurrent protection in the exterior switch, it is not neccessary. The panel could have been a main lug only panel.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now