ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 255 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 3 1 2 3
#115620 11/20/03 08:51 AM
Joined: Dec 2000
Posts: 4,294
Member
This box is a (Hubbell) Raco 3.5" "Ceiling Box".
They've been around since the days of knob & tube wiring.

[Linked Image]

Where would you use this particular box??...S



[This message has been edited by electure (edited 11-20-2003).]

#115621 11/20/03 10:07 AM
Joined: Aug 2002
Posts: 1,081
T
Member
See question #11: https://www.electrical-contractor.net/Education/Mike_Holt_Code_Q&A.htm

Substitute 314.16 for 370-16

#115622 11/20/03 05:26 PM
Joined: Dec 2002
Posts: 24
G
Member
Only on a ceiling fixture or wall sconce with a canopy that meets the wire fill requirements.

[This message has been edited by Gus1999 (edited 11-20-2003).]

#115623 11/20/03 06:39 PM
Joined: Sep 2003
Posts: 114
S
Member
Well, it's 4.0 cu in-so it's perfect for old fashioned 14-2 Romex with no ground.

#115624 11/20/03 08:06 PM
Joined: Dec 2000
Posts: 4,294
Member
I've seen lots of these above sinks in bathrooms on residential work.
Seems that darn plumber always vents straight up, and there's almost always a stud right there...S
TG, yes when they enter from a domed fixture.
Now, what about the ground wire in the 14-2 romex?? It doesn't count?



[This message has been edited by electure (edited 11-20-2003).]

#115625 11/20/03 09:15 PM
Joined: Aug 2002
Posts: 1,081
T
Member
Quote
Now, what about the ground wire in the 14-2 romex?? It doesn't count?

Not if you cut it off before it enters the box...who needs a ground for a light fixture anyway?

(NOTE: That was supposed to be sarcasam...)

#115626 11/20/03 09:57 PM
Joined: Sep 2003
Posts: 114
S
Member
These things always seem to get added onto over time

"You know, I always wanted an outlet there...."

#115627 11/20/03 10:03 PM
Joined: Dec 2000
Posts: 4,294
Member
Now, let's deduct 1 conductor for the clamps
...S

#115628 11/20/03 10:08 PM
Joined: Aug 2003
Posts: 173
S
Member
I never use the 3.5" ones and never with clamps.

Ceiling fixture that lands on a joist and sconces that land on a stud.
They are some of the best support for heavier fixtures since the mounting point is centered on the box.


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
#115629 11/22/03 03:48 PM
Joined: Oct 2000
Posts: 4,116
Likes: 4
Member
I've used these before, and reasoned that the Fixture Dome effectively adds volume to the box that can be divided up for conductor fill. It has been a solution for some tough situations.

But ... strictly speaking, 370-16(B)(1)Exception seems to say that the 'domed luminaire' or canopy space can only be used to avoid counting the fixture wires.

Bill


Bill
Page 1 of 3 1 2 3

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5