What will we do when there are many panelboards on one property, and in more than one building that needs circuits identified?
Can we enforce the strict rule of the existing numbering sequence, or can we change them in this one, that will be "modified" so that all of the numbers beginning with 1 through 21 will be on the left, and 22 through 42 on the right?
Safety hazard then?
I think that the conventional wisdom of the electricians in the industry would want to see and keep the same scheme.
[This message has been edited by Joe Tedesco (edited 03-20-2005).]
It would be nice if it was set up logically, but I won't push the issue, just suggest it.
One of my biggest peeves is panel directories from the days when I used to work as an electrician. They have to be accurate. Every breaker gets a name even if its spare. As long as breaker 7 matches what it says next to number 7 on the card, then fine.
Larry LeVoir Inspector City of Irvine, CA
Re: Modifying an Existing Panelboard Circuit Directory#105402 12/03/0409:50 PM12/03/0409:50 PM
Joe: I can't seem to grasp what you are getting at... "Can we enforce the strict rule of the existing numbering sequence, or can we change them in this one, that will be "modified" so that all of the numbers beginning with 1 through 21 will be on the left, and 22 through 42 on the right?"
Some mfg have a printed directory label/card that is 'odd-even', others 1-42 in a vertical format, some provide a blank lined card with no numbers, some provide 'stick-on' numbers, and there are probably a few other variations.
As an EC, I'mm from the 'odd-left' school, and yes, it's a routine that has taken me a while to 'break', especially after I turned off the incorrect breaker that WAS properly marked on a 'left-right' format.
As an AHJ...it must be marked, and correct. As to logic of the format....I have no Article to cite. Perhaps UL or NEMA can address and correct this???
Re: Modifying an Existing Panelboard Circuit Directory#105403 12/04/0401:22 PM12/04/0401:22 PM
...And there it was, a nice commercial grade Leviton 20 amp outlet right under the panel. OH ... and inside was all nice organized separation of ground wires and isolation of neutral bar. Something that gets messed up a lot around here. Only thing I didn't like was that thry ran Aluminum from main panel, but it was dressed out properly.
Re: Modifying an Existing Panelboard Circuit Directory#105407 12/12/0409:18 AM12/12/0409:18 AM