Plenum Cable: Advantages and Disadvantages

plenum cable
cable
fire resistance
networking
communication

This page outlines the advantages and disadvantages of Plenum cable. It details the benefits and drawbacks associated with using Plenum cables.

What is Plenum Cable? - An Introduction

  • Plenum (CMP) rated cable complies with NFPA-262 and UL-910 standards. The term “plenum” refers to airspace used for air circulation by HVAC systems, such as raised floors or drop ceilings.
  • These cables are designed with jackets made of materials that emit low amounts of smoke. Furthermore, they slow down the spread of flames.
  • A common jacket material is Fluorinated Ethylene Polymer (FEP), which is a softer and more pliable version of Teflon ® (also known as PTFE).

Plenum cable

  • It’s the only type of cable permitted in spaces defined as air plenums, like raised flooring systems and air handling ducts.
  • Plenum cables must self-extinguish and not re-ignite if exposed to flame.
  • OFNP (Optical Fiber Non-conductive Plenum) cables are similar to OFNR cables, but they utilize a jacket suitable for plenum airspaces.

Benefits or Advantages of Plenum Cable

Here are the benefits of using Plenum cable:

  • Fire Resistance: Plenum cables offer fire-resistant properties and produce low smoke emissions when burning.
  • Flame Retardant: They slow down the spread of flames, as they are designed to be self-extinguishing.
  • Space Efficiency: They can be installed in tight spaces, allowing for optimal air circulation for HVAC systems.
  • Versatility: Twisted-pair, coaxial, HDMI, and DVI versions of cables are available in plenum-rated options.

Drawbacks or Disadvantages of Plenum Cable

Here are the drawbacks to consider when using Plenum cable:

  • Cost: They are more expensive compared to non-plenum cables.
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