|
|
|
0 members (),
30
guests, and
22
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Feb 2004
Posts: 17
OP
Member
|
A guy was talking about some lonwork transformer being above the t-grid having to be plenum rated.
I thought a plenum was a duct or airway. What kinds of things have to be plenum rated and is above the t grid in an office a plenum?
I also remember a guy talking about have tie wraps used above the t grid had to be plenum rated. I'm not familar with this.
|
|
|
|
|
Joined: Aug 2003
Posts: 1,374
Moderator
|
Basically, everything has to be plenum rated if its in a plenum ceiling. ![[Linked Image]](https://www.electrical-contractor.net/ubb/smile.gif)
Ryan Jackson,
Salt Lake City
|
|
|
|
|
Joined: Nov 2000
Posts: 2,148
Member
|
|
Don(resqcapt19)
|
|
|
|
|
Joined: May 2004
Posts: 8
Junior Member
|
|
|
|
|
|
|
Joined: Dec 2001
Posts: 300
Member
|
Sometimes the space above a drop ceiling is used as the return air plenum. If so, everything in the ceiling has to be plenum rated. Sometimes the space below a floor or in a wall can be used this way too.
|
|
|
|
Posts: 28
Joined: February 2011
|
|
|
|
|
|
