Definition Of Plenum Floor

Latin plēnum spatium full space neuter of plēnus.

Definition of plenum floor.

Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum. Plenum ˈpliːnəm n pl nums na nə an enclosure containing gas at a higher pressure than the surrounding environment. It is conditional if the drop ceiling or raised floor not in a telecom room is handling any sort of air return then it should be a plenum rated space. I need help applying the nec definition of plenum.

Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum. Space filled by matter from plēnus full. See pelə in indo european roots. My company is planning to install electronic equipment in a single room with a raised floor.

The air movement components simple. Technically any ductwork is considered a plenum space too. Which one do you think it is. The space below the floor will be used for cabling and for air movement to cool electronic equipment in racks.

In building construction the plenum pronounced pleh nuhm is the space that is used for air circulation in heating and air conditioning systems typically between the structural ceiling and the suspended ceiling or under a raised floor. If it is an air handling space then same rules as above the ceiling apply and smoke detection is required also. The term plenum could be a large section of ductwork or the upper space above a ceiling. The plenum space is typically used to house the communication cables for the buildings computer and telephone network s.

However some drop ceiling designs create a tight seal that does not allow for airflow and therefore may not be considered a plenum air handling space. A space lying above the ceiling in a building but below the next floor especially one allowing movement of air between parts of the building. Any large space designated for any type of air flow or routing of systems can be called a plenum. If it is not an air handling space then yes extension cords and power strips are allowed.

Plenum spaces are the open spaces above the ceiling or below the floor that are used for air circulation. When you run cable through any building you first need to consider plenum spaces. However some drop ceiling designs create a tight seal that does not allow for airflow and therefore may not be considered a plenum air handling space. Depends on if the raised floor space is a plenum space or not.