[MHElectric]

Anybody here use nail on boxes with MC? Legal?

 

[BBQ]

Anybody here use nail on boxes with MC? Legal?

Metal nail on boxes sure, plastic no.

 

[bobelectric]

AC, no. MC cable ,the outer shield isn't a grounding method,just protection.So yes. But not a happy ending,as they say.

 

[BBQ]

AC, no. MC cable ,the outer shield isn't a grounding method,just protection.So yes. But not a happy ending,as they say.

Still a no.

The armor of the MC has to be grounded by the connection to the box.

 

[bobelectric]

Still a no.

The armor of the MC has to be grounded by the connection to the box.

Bonded or grounded?

 

[SparkyDino]

nail it, screw it.

I dont get question?

Metallic cable needs a metal box for one, what difference does it make how you secure it? [doesn't it? I wouldn't do it any other way]

and then bond it.

 

[BBQ]

Bonded or grounded?

Bonded

314.3 Nonmetallic Boxes. Nonmetallic boxes shall be permitted
only with open wiring on insulators, concealed knoband-
tube wiring, cabled wiring methods with entirely nonmetallic
sheaths, flexible cords, and nonmetallic raceways.

Exception No. 1: Where internal bonding means are provided
between all entries, nonmetallic boxes shall be permitted
to be used with metal raceways or metal-armored
cables.

Exception No. 2: Where integral bonding means with a
provision for attaching an equipment bonding jumper inside
the box are provided between all threaded entries in
nonmetallic boxes listed for the purpose, nonmetallic boxes
shall be permitted to be used with metal raceways or metalarmored
cables.

 

[denny3992]

What i u had a plastic box and used a bond bushing on ur mc connector?

 

[Southeast Power]

Bonded

It seems as though this means a metallic strap or something inside of the box.??

 

[HARRY304E]

It seems as though this means a metallic strap or something inside of the box.??

MC cable sheath is a chitty ground so article 250 does not allow it to be used as such,but it is a metal raceway so it still must be bonded together,the grounding conductor will provide a Better path back to ground,with the sheath of MC Cable without having the grounding conductor bonded to it by connection to the box that sheath would be glowing red hot with a low amount of current running through it just a few amps so the circuit breaker will not Tripp.

 

[BBQ]

What i u had a plastic box and used a bond bushing on ur mc connector?

Maybe.

 

[3xdad]

Is the OP suggesting MC thru the cable clamp on a plastic nail on?:thumbdown:

 

[HackWork]

Is the OP suggesting MC thru the cable clamp on a plastic nail on?:thumbdown:

Oh stop, like you haven't done there before :whistling2:


The sheath is bonded on the panel side of the run :thumbup:

 

[Chris1971]

This site should be called apprenticeelectriciantalk.com

 

[HARRY304E]

This site should be called apprenticeelectriciantalk.com

Go get my coffee , Helper...:laughing:

 

[3xdad]

Oh stop, like you haven't done there before :whistling2:


The sheath is bonded on the panel side of the run :thumbup:

:laughing:

i haven't. What would be the scenario to use both together? Ran out of cable or ran out of 1900's?

Do you guys use an anti-short and tape? Hack-a-tha's

 

[SparkyDino]

:laughing:

i haven't. What would be the scenario to use both together? Ran out of cable or ran out of 1900's?

Do you guys use an anti-short and tape? Hack-a-tha's

It sounds so strange I didn't even think it would be legal, much less ever need to look it up. & find out you can do it.:laughing:

 

[SparkyDino]

I need a picture of someones install doing this MC to a plastic box just so I can fully grasp how stupid it would look.

 

[Awg-Dawg]

I need a picture of someones install doing this MC to a plastic box just so I can fully grasp how stupid it would look.

Arlington makes a recessed Weatherproof In use box that is plastic.

I ran MC to it.

http://www.wescodirect.com/direct/images/products/pdf/164_Elec08.pdf

 

[SparkyDino]

Arlington makes a recessed Weatherproof In use box that is plastic.

I ran MC to it.

http://www.wescodirect.com/direct/images/products/pdf/164_Elec08.pdf

no disrespect, something like that? ok if you feed from behind in wall. I will never be able to wrap my head around plastic stuff. doubt it would pass around here. the weather extremes would probably destroy it here.

my gist of this thread is a nail up plastic box for rope type installs with MC.

I never saw a plastic box or romex until about 10 yrs in the trade. saw a lot of K & T, but never the wiring practices y'all see as normal.

just can't get my head around it.