Definition Of Plenum 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.

Definition of plenum floor.

See pelə in indo european roots. The term plenum could be a large section of ductwork or the upper space above a ceiling. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum. 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.

When you run cable through any building you first need to consider plenum spaces. 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. Technically any ductwork is considered a plenum space too. If it is an air handling space then same rules as above the ceiling apply and smoke detection is required also.

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. The air movement components simple. 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 fully attended meeting or assembly esp of a legislative body esp in the philosophy of the stoics space regarded as filled with matter.

Plenum spaces are the open spaces above the ceiling or below the floor that are used for air circulation. The plenum space is typically used to house the communication cables for the buildings computer and telephone network s. Space filled by matter from plēnus full. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum.

If it is not an air handling space then yes extension cords and power strips are allowed. I need help applying the nec definition of plenum. Which one do you think it is. 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.

The space below the floor will be used for cabling and for air movement to cool electronic equipment in racks. Plenum ˈpliːnəm n pl nums na nə an enclosure containing gas at a higher pressure than the surrounding environment. Any large space designated for any type of air flow or routing of systems can be called a plenum. Depends on if the raised floor space is a plenum space or not.