Unshielded Cat 6 cable? Is your website secure? How do I return a purchase? What are your shipping and processing fees? How do I request your product guide? What is your Privacy Policy? How can I follow L-com on social media? What are your Terms and Conditions? What is your contact information? What is a USB Cable? What is a DB9 Connector? Plenum cables are required in IT rooms for a couple of reasons.
First and foremost, raised flooring indicates a plenum space, so you must use the appropriate cables. Additionally, even with proper ventilation, IT rooms tend to get warm, and all the electricity can be a fire hazard. We back all our cables with lifetime warranties because we believe you deserve reliable cables.
Our Cat5e plenum cables are sure to meet and exceed your expectations. If you have any questions, our customer service team is full of experts ready to help you find the cables that best suit your needs. Plenum is an HVAC term used to identify open airspaces — usually above drop-down ceilings or below raised floors — which facilitate airflow circulation for heating and cooling. In most plenum airspaces, air ducts are used to connect the HVAC unit and the supply vents to distribute the air supply throughout a building.
In other words, the HVAC unit pulls the return air within the open airspace and circulates it back to the supply vents. Even if both supply and return vents used ducting - a non-plenum airspace - a leaky duct can create an accidental plenum airspace.
While important for air circulation, the open airflow can quickly spread fire and smoke throughout a building. Because of this risk, any cable installed within plenum areas must be plenum-rated. Non-plenum cable will help spread the fire and introduce a higher level of toxic smoke. Plenum-rated cables, also known as CMP Communications Multipurpose Plenum , have the highest flame rating and the highest cost.
The jacket is designed to restrict flame propagation within 5 ft , reduce the amount of smoke and toxic fumes released, and self-extinguish in the event of a fire. Thus, fire and building safety codes mandate plenum-rated cables be used in plenum spaces and air ducts.
They can also be used in non-plenum areas. Non-Plenum cables, on the other hand, are much cheaper and not as fire-resistant. When burned, they release toxic fumes such as hydrochloric acid and dioxin. Therefore, they may not be used in plenum areas. Otherwise, deadly gas will rapidly circulate through the building. CMR cables are mainly used in risers and vertical shafts to run cable through multiple floors. They are designed to prevent fires from spreading between floors.
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