250.132 VS 300.12 Ex 1

[tortuga]

A electrician has installed a piece of 1/2" pvc schedule 40 combined with a 2.5 foot section of FMC to protect a run of 10-2 romex. The FMC ended with a angle connector at a wall and did not terminate on a metal box or raceway.
334.15(B) does not mention schedule 40 PVC as suitable supplementary protection.
The 30" piece of flex that goes between pvc and the wall where the 10-2 emerges into the wall is not bonded on either end. Granted it is just supplementary protection.

250.132 Short Sections of Raceway
Isolated sections of metal raceway or cable armor, where re-
quired to be grounded, shall be connected to an equipment
grounding conductor in accordance with 250.134.

And 300.10

Metal raceways, cable armor, and other metal enclosures for
conductors shall be metallically joined together into a continuous
electrical conductor and shall be connected to all
boxes, fittings, and cabinets so as to provide effective electrical continuity.

Seems to require the flex to have had a bonding bushing IMO.
Now we do have:

Exception No. 1: Short sections of raceways used to pro-
vide support or protection of cable assemblies from physical
damage shall not be required to be mechanically continuous.

However it does not say bonded, just that it does not have to be a complete system.
Opinions?
Similar situations?
I had to cut the 1/2" PVC lb in half to remove the 10-2 and can hardly believe it would not be a raceway fill violation to even install 10-2 romex in 1/2" pvc.


Does 300.12 ex 1 exempt the "short" section of raceway from being bonded as required by 250.132?

 

[augie47]

I don't care for it, but IMO, the 300.12 exception allows the flex situation, if, in your opinion, it is there for protection only.

as far as the 10/2 NM in a 1/2 conduit, if it's for protection it might be arguable if it is compliant. If its part of a conduit installation, Note 9 ti Chapter 9 Table 1 (pg 70-671 in '08) would prohibit the install.

 

[tortuga]

Yeah thanks thats what I was afraid of 300.10 has the same exception
and 250.86 Exception 2 more clearly allows it:

Exception No. 2: Short sections of metal enclosures or
raceways used to provide support or protection of cable as-
semblies from physical damage shall not be required to be
connected to the equipment grounding conductor.

Then I am not sure I can charge for moving it into the wall.
but I do have piece of mind.
Case closed

 

[iwire]

IMO no bonding required.