Device or Equipment Fill

[kgasparky]

I am currently attending a class at a local community college. The subject is Master Review, to take the Master Lisence test. The question was brought up about box fill calculations. In 314.16 (4) counting the conductors on a device. If you have two devices in a box, say (1) one Receptacle with 2-#12's and (1) one switch with 2-#14's. How are the yokes of each device counted? Some say the yokes count as double volume allowance of the largest conductor in the box. Some say double volume allowance for the largest conuctor on each individual device. The switch is the device in question.
The switch's yoke counts as:
A) 2-#12's
B) 2-#14's

Which is correct? Was it originally the largest conductor in the box and was a code change? Our instructor is unsure of the terminology in the code.
Can Someone help us?
Thank you,
kgasparky

 

[Jim W in Tampa]

b
add this so it is long enough

 

[kgasparky]

But What answer will they be looking for in a box calculation in the TEST? Must have the correct answer.

 

[iwire]

Have you read 314.16(4)?

When I read it I see it says, more or less the following

....based on the largest conductor connected to the strap...

 

[celtic]

B) - 2 #14's

314.16(B)(4) ~ Device or Equipment Fill.
For each yoke or strap containing one or more devices or equipment, a double volume allowance in accordance with Table 314.16(B) shall be made for each yoke or strap based on the largest conductor connected to a device(s) or equipment supported by that yoke or strap.

The conductor attached TO the device is the one that is counted...hower, if there are clamps, they are sized accoring to the largest conductor entering the box...and if there are equipment grounding conductor or equipment bonding jumper, they are sized to the largest EGC/EBJ present in the box.

 

[kgasparky]

That's how I read it, But some in the class are say in the box. I think you are correct.

 

[celtic]

But What answer will they be looking for in a box calculation in the TEST? Must have the correct answer.

Trust us...it's "B".

 

[Jim W in Tampa]

But What answer will they be looking for in a box calculation in the TEST? Must have the correct answer.

see 314-16

 

[kgasparky]

Thanks to all. I hope this is now settled in class tomorrow night.

 

[celtic]

see 314-16

You got some 'splainin' to do!



BTW, THIS is my 200th post

 

[iwire]

You got some 'splainin' to do!

You sure do!

BTW, THIS is my 200th post

200? as in Two Hundred?

I know you been around more than that.

 

[George Stolz]

BTW, THIS is my 200th post

Go Celtic, it's yo birthday
We gonna party like it's yo birthday
We gonna sip Bacardi cause it's yo birthday
And you know we don't give a **** 'cause it yo birthday!

 

[infinity]

You got some 'splainin' to do!



BTW, THIS is my 200th post

Ok Ricky, but you meant your 2000th post!

 

[drg]

That was nice to send the guy your picture but whats with the birthday thing, he never mentioned that.

 

[Jim W in Tampa]

? b aint right ???

 

[celtic]

b
add this so it is long enough

Last edited by Jim W in Tampa : Today at 09:45 PM.

? b aint right ???

I didn't know an "edit" was an explanation

 

[celtic]

Ok..beat me up guys....2000 th post

LOL

See what happens when you work past dinner time two nights in row.

 

[LarryFine]

See what happens when you work past dinner time two nights in row.

I can't remember the last time I didn't!

 

[Jim W in Tampa]

I didn't know an "edit" was an explanation

Edit,what edit LOL.Guess i was reading it wrong for years.