Definition Of Plenum Floor

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.

Definition of plenum floor.

Space filled by matter from plēnus full. 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 term plenum could be a large section of ductwork or the upper space above a ceiling. 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.

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. Plenum ˈpliːnəm n pl nums na nə an enclosure containing gas at a higher pressure than the surrounding environment. Technically any ductwork is considered a plenum space too. See pelə in indo european roots.

I need help applying the nec definition of plenum. Depends on if the raised floor space is a plenum space or not. If it is an air handling space then same rules as above the ceiling apply and smoke detection is required also. When you run cable through any building you first need to consider plenum spaces.

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. Which one do you think it is. Plenum spaces are the open spaces above the ceiling or below the floor that are used for air circulation. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum.

The plenum space is typically used to house the communication cables for the buildings computer and telephone network s. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum. The space below the floor will be used for cabling and for air movement to cool electronic equipment in racks. 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. Latin plēnum spatium full space neuter of plēnus. My company is planning to install electronic equipment in a single room with a raised floor. If it is not an air handling space then yes extension cords and power strips are allowed.