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Advantages of Plenum cable | disadvantages of Plenum cable

This page covers advantages and disadvantages of Plenum cable. It mentions Plenum cable advantages or benefits and Plenum cable disadvantages or drawbacks.

What is Plenum cable?

Introduction:
• Plenum (CMP) rated cable complies with NFPA-262 and UL-910. The word "plenum" refers to airspace used for air circulation by HVAC system e.g. raised floor or drop ceiling.
• These cables are designed with jacket made of materials which give off low amounts of smoke. Moreover it slows down spread of flames.
• One popular jacket material is Fluorinated Ethylene Polymer (FEP). It is more softer and pliable version of Teflon® (also known as PTFE).

Plenum cable

• It is the only cable allowed in spaces defined as air plenums such as raised flooring systems and air handling ducts.
• Plenum cables must self extinguish and not re-ignite.
• OFNP (Optical Fiber Non-conductive Plenum) are similar to OFNR but it uses jacket suitable for plenum airspaces.

Benefits or advantages of Plenum cable

Following are the benefits or advantages of Plenum cable:
➨It has fire resistant characteristics with low smoke.
➨It slows down spread of flames as mentioned above as it is self extinguishing cable type.
➨It can be installed in very less space and hence allows space for air circulation to be used by HVAC system.
➨Twisted-pair, coaxial,HDMI and DVI versions of cable are made in plenum version.

Drawbacks or disadvantages of Plenum cable

Following are the drawbacks or disadvantages of Plenum cable:
➨They are expensive compare to non-plenum cables.



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