Raynool Blog
By Tony Huang | 27 December 2019 | 0 Comments

When should you use plenum rated cable?

When should you use plenum rated cable?
 

What does Plenum rated cable means?
Plenum-rated cable gets its name from an HVAC term—plenum spaces. The plenum spaces are those that lie between a drop and standard ceiling.
When no conduit is used, plenum cable is often required since the cable is considered to be freely installed.
Plenum spaces allow fire and smoke to travel quickly. By using plenum-rated cable, the levels of toxicity in the smoke would be lower.
 
What’s the structure of Plenum rated cable?
Plenum cable is coated with a jacket that is typically made of flame-resistant material such as Teflon.
 
What’s the benefit of Plenum rated cable?
Plenum cable is coated with a jacket that is typically made of flame-resistant material such as Teflon. This special jacketing makes the cable smoke less than regular PVC cable and the smoke that is emitted is less toxic.
 
What’s the difference between Plenum rated cable and Non-Plenum rated cable?
Cost: The biggest difference is cost, so please check with your cable supplier that the cable you buy is Plenum or Non-Plenum.
Jacket: Plenum cable usually coated with FEP Jacket, while non-Plenum cable with PVC Jacket.
Potentially toxic smoke: in case of a fire, Plenum rated cable is consider to be much less toxic.
 
Where to use Plenum rated cable?
Plenum-rated cable gets its name from an HVAC term—plenum spaces. The plenum spaces are those that lie between a drop and standard ceiling, it’s where a Plenum rated cable needed. You must always choose plenum-rated cable when cabling is being run throughout plenum spaces of buildings, including air ducts.
 
When should you use Plenum rated cable?
A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, but not all the raised floor or drop ceiling space is plenum space. Please check with the Building maintenance personnel and the company that installed the HVAC. If it is not a plenum space, there is no need to use plenum rated cable.
 
UL Certified Plenum Cable
The National Fire Protection Agency (NFPA) sets the standards in terms of code requirements that protect plenum air spaces. All plenum cable undergoes rigorous testing by one of the many nationally recognized testing laboratories in the United States to ensure it meets this strict set of standards before it can be truly classified as plenum-rated.
 
Raynool have been investigated by UL in accordance with the Standard indicated on the Certificate, with Certificate number E505624. Find out where to buy Plenum cable, Contact us today!

 

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