There was a recent article in Fine Homebuilding regard wiring a load center in which the author used wire ties to organize circuits.
Naturally this generated discussion as to whether this was bundling. The author replied it wasn't and no inspector ever dinged him for it.
Your thoughts?
Bundled does not become a problem until you have 24" bundled together. Unfortunately some inspectors may try to add up all the bundles. The place where this bites a lot of installers is where Romex goes through the top plate and it gets foamed in. 334.80 says where more than 2 NM cables go through foam, it must be derated (no minimum distance) so if you have more than 9 total #14 or #12 current carrying conductors in that bundle you have exceeded the 90c rating. It is best to only run one other cable through a hole with a #10 since the 90c rating is only 40 and you get there pretty quickly.
snipped-for-privacy@aol.com posted for all of us...
Thank you. The author also quoted the 24" rule and states he never violated it.
Did you ever see wire ties used in a load center?
Yes it is not uncommon. In fact it is almost implied in the change to
200.4 in the 2011 cycle(D) Grouping. The ungrounded and grounded circuit conductors of each multiwire branch circuit shall be grouped by cable ties or similar means in at least one location within the panelboard or other point of origination. Exception: The requirement for grouping shall not apply if the circuit enters from a cable or raceway unique to the circuit that makes the grouping obvious.
Fuck what the code says.
Then I guess you can just listen to the fire department.
snipped-for-privacy@aol.com posted for all of us...
Thanks, I still haven't had mine upgraded...
snipped-for-privacy@aol.com posted for all of us...
He will be in perpetual slumber and not hear the sirens...
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.