|
|
|
0 members (),
205
guests, and
50
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Jul 2001
Posts: 311
OP
Member
|
Happy new year to all!
When using conduit as "protection from physical damage" for nonmetallic-sheathed cable as permitted in section 334.15(B) what is the maximum length of conduit that can be used as a sleeve.
Since the Code is not specific I suppose it might vary according to AHJ.
Frank
|
|
|
|
|
Joined: Mar 2001
Posts: 2,056
Member
|
Hello Frank. Happy New Year to you.
This has been discussed in one way or another(see 250.86, exception 2) in several different forums.
There seems to be no consensus as to what constitutes a "short section".
BTW,
I say anything less than a full length.
|
|
|
|
|
Joined: Feb 2002
Posts: 375
Member
|
You can use as much as you want to.
For less than 2' you can ignore the fill and derating requirements.
|
|
|
|
|
Joined: Oct 2000
Posts: 4,158 Likes: 5
Member
|
Frank,
Happy New Year!
I've been told any length was OK as long as one end was open. On a closed conduit system I don't know.
Bill
Bill
|
|
|
|
|
Joined: Apr 2002
Posts: 914
Member
|
As long as the conduit is sized properly for the size and number of conductors inside the NM, there isn't a restriction on NM in conduit. Most NM is THHN/THWN-2.
|
|
|
|
|
Joined: Jan 2004
Posts: 91
Member
|
how are you using the sleeve? for what pupose, does the sleeve terminate into a box etc????
|
|
|
|
Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
|
|
|
|
|
|
