ECN Forum Forums Code Related Discussion NEC & other Code issues wires to panel box

Is there a violation with this:I installed a 200 a panel drilled a 2" hole in floor under panel installed nail plate ran all my circuit wiring through this hole.I also installed a 2" conduit on the bottom also I caped it off under home for future use.The home owner called said the inspector didn`t like all the wires coming through the hole and the abandon pipe installation.She said he left no code numbers of violation.Can you see a problem the way it was done code wize?Thanks in advance.

It could be a bundling/derating issue per 310.15 (B)(2). And also, if you want to use the 2" conduit for future use, I don't believe it can be concealed. I can't remember the reference though.

"all my circuit wiring" - is it fair to assume NM cable? (aka: Romex) - if so -
336-6(b) requires, "where passing through a floor, the cable shall be enclosed in RMC, IMC, EMT, Sch. 80 PVC, listed surface metal or nonmetallic raceway or other metal pipe extending at least 6" above the floor."

Don't see any reference regarding
'concealed' or anything about the 'abandoned pipe installation.'

Call the inspector and ask for a code reference. If he cannot or willnot provide one, talk to his boss. The inspectors are supposed to know what they are doing, and know the code.

Is this a flush mount or surface mount installation?

If its flush mount then I do not see a problem with your cable installation. The bundling argument is kinda weak for residential, as there are very few continuous loads in residential. If its a loose bundle it should be okay.

If its surface mount, then his problem maybe with no protection from physical damage.

Since he has a problem with your spare conduit, I would terminate it in a proper size pull box.

See 312.5 (C) 2002 NEC regarding the pipe.
As far as derating for bundling, I don't see that the code distinguishes between continuous or non-continuous load. If the cables are bundled in excess of 24", the inspector would have a valid point.

[This message has been edited by Redsy (edited 04-28-2003).]

Redsy,

My point about continuous or non-continuous loads was heat. The reason we derate conductors is to avoid a heat problem. Most conductors in residential are never fully loaded, let alone continualy loaded. Since they are not fully loaded then aren't they already derated?

If you go by the literal wording of the code, then I agree you are correct.

Hey Redsy that was the issue he didn`t realize the conduit was capped at the other end under home.But he sited the wiring being bundled in excess of 24 in.Ok but they are actually spread out going to the romex connectors in the panel and under the house they aren`t really bundled they are somewhat close but you know what I mean I told him I`d spread out as far as possible so he`s comming back to see.I guess there`s a gray area here up to him if he thinks they are bundled still.This is a flush mount residental.