Definition Of Plenum Floor

Which one do you think it is.

Definition of plenum floor.

See pelə in indo european roots. 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. Some say the plenum is the space above ceiling tiles or below the floor tiles while others say it s specifically the ducts returning air to your hvac system. If it is an air handling space then same rules as above the ceiling apply and smoke detection is required also.

The space below the floor will be used for cabling and for air movement to cool electronic equipment in racks. Technically any ductwork is considered a plenum space too. The term plenum could be a large section of ductwork or the upper space above a ceiling. Any large space designated for any type of air flow or routing of systems can be called a plenum.

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. 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. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum. 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. My company is planning to install electronic equipment in a single room with a raised floor. Definition of plenum in construction a plenum is a space designated for air flow or can describe a space devoted to mechanical electrical or sprinkler lines. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum.

I need help applying the nec definition of plenum. Plenum ˈpliːnəm n pl nums na nə an enclosure containing gas at a higher pressure than the surrounding environment. Depends on if the raised floor space is a plenum space or not. The plenum space is typically used to house the communication cables for the buildings computer and telephone network s.

If it is not an air handling space then yes extension cords and power strips are allowed. 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. The air movement components simple. Space filled by matter from plēnus full.