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Where is plenum cable usually found?
It is commonly found in the space between the structural ceiling and a drop-down ceiling or under a raised floor. In commercial settings such as schools or office buildings, the plenum space is often used to house connecting communication cables.
Is plenum cable required in warehouse?
If there is no sheet metal duct; just the open ceiling or wall space, then you are required by law to use Plenum Rated cable. This allows intensive cooling to be pumped through the space under the floor to cool the servers, switches, routers, etc.
How do you identify plenum cable?
Ratings ending in P designate that the cable is plenum-rated as well allowing it to be used in plenum areas. Plenum-rated cables are more resistant to fire then normal cables.
What is a plenum Ethernet cable?
Plenum cables have a specially-made coating that’s meant to be fire resistant and non-toxic for use in potentially hazardous areas. In addition, that added protection could also increase the quality and life span of high-end Ethernet cabling systems. Plenum cables used in buildings are shortly termed as CMP.
Can plenum cable be used outside?
Plenum cable is rated for the “plenum spaces” in buildings, which are simply the parts of the building that facilitate air circulation in heating and air conditioning systems. This designation simply means that the cable has been engineered to be buried without any kind of outside protection.
What is a plenum and where would I find one HVAC?
A plenum box is an HVAC component consisting of an enclosed box that’s connected to the ducts. You can usually find them around your HVAC system’s air handler or furnace, which of course is also where the filter is located.
Is open warehouse a plenum space?
If the space above the ceiling is closed and used to return the air then this is a plenum rated space. If there are ducts that supply and return the air then not plenum rated. If the ceiling is open to the warehouse not plenum rated.
Can plenum cable be used in conduit?
If you’re using plenum-rated conduit, you don’t need to use plenum-rated cable. This is true even if the conduit is in a plenum space. The most common types of plenum conduit are innerduct (often used for fiber runs) and metal. PVC pipes are generally not plenum-rated.
Can plenum wire be painted?
Painting the cables can change the cable performance properties in unknown ways. This is especially true of plenum cables, which are designed to have excellent fire-resistance properties. Painting or coating of plenum cables might compromise their fire-safety properties.
Can plenum cable be buried?
How do you bury a cat 6 cable?
If you still want to use regular Ethernet cables, you can get the best result by putting them in a conduit and then burying the conduit under the ground. The depth of burial ground should be about 6 to 8 inches and should be far away from sources of electrical interference like power lines.
What is HVAC plenum?
A plenum is an air-distribution box attached directly to the supply outlet of the HVAC equipment that heats or cools the air to make the house comfortable. The ductwork that distributes the heated or cooled air to individual rooms of the house connects to the plenum.