romex and metal box?

[sparks2000]

do you have to ground a metal box, if you pull it in romex?

 

[e57]

Of course... That's why they make them silly green screws... Oh - contrary to popular belief - you have to ground the device you put in it too...

 

[brantmacga]

do you have to ground a metal box, if you pull it in romex?

yes.

in 4" square boxes (surface mount) I use a screw, in nail-up boxes (flush mount) i use a clip.

 

[sparks2000]

ok...thought so, thats so the metal box doesnt get energized! thank you. I'M AN ALL CONDUIT GUY FROM CHICAGO, just curios.

 

[sparks2000]

how does that clip work, dont you need a green wire tied to it?

 

[brantmacga]

how does that clip work, dont you need a green wire tied to it?

you place it over the grounding conductor and clip it to the box. it holds the conductor firmly against the box.

 

[sparks2000]

o... cool! I see know,thanks!

 

[480sparky]

how does that clip work, dont you need a green wire tied to it?

 

[sparks2000]

got it! thanks

 

[mcclary's electrical]

Of course... That's why they make them silly green screws... Oh - contrary to popular belief - you have to ground the device you put in it too...

says who?
:-?

 

[sparks2000]

what do you mean?

 

[mcclary's electrical]

my reply was to post number two. Please show me a code article that says I have to ground the device along with the box. I'd like to see it.

 

[Nium]

my reply was to post number two. Please show me a code article that says I have to ground the device along with the box. I'd like to see it.

2008 NEC
Receptacles 406.3(C)
Switches 404.9(B)

 

[A/A Fuel GTX]

do you have to ground a metal box, if you pull it in romex?

Don't have my book in front of me but I'd say if the romex was just passing through the box without being stripped and terminated to a device, the box would not have to be bonded.

 

[Jim W in Tampa]

Don't have my book in front of me but I'd say if the romex was just passing through the box without being stripped and terminated to a device, the box would not have to be bonded.

That applies to metal conduit systems not romex

 

[George Stolz]

Don't have my book in front of me but I'd say if the romex was just passing through the box without being stripped and terminated to a device, the box would not have to be bonded.

Not so, 250.4, and 250.86-ish off the top of my head. The box must be bonded, even if no conductors are spliced within the box. Also see 250.148.

 

[A/A Fuel GTX]

Not so, 250.4, and 250.86-ish off the top of my head. The box must be bonded, even if no conductors are spliced within the box. Also see 250.148.

Ok, Thanks Geo......I was thinking along the lines of somewhere in the code where it states that short sections of metallic conduit used to sleeve NM-B need not be bonded.

 

[gndrod]

EGC........rbj

 

[macmikeman]

I've used them of course, but I never was a big fan of the grounding clips. Threaded screw and pigtail into the machine hole in the back of the box-yes, much better.

 

[LarryFine]

Don't have my book in front of me but I'd say if the romex was just passing through the box without being stripped and terminated to a device, the box would not have to be bonded.

To paraphrase Gary Seinfeld, "Why have a box?"