What is a key characteristic of plenum-rated cable?

Plenum-rated cable is specifically designed to be used in spaces that facilitate air circulation for heating and air conditioning systems, known as plenums. The key characteristic of plenum-rated cable is that it is fire-resistant, which is critical because these cables are often installed in ceilings and air ducts where a fire could quickly spread. The materials used in these cables are designed to produce less smoke and emit fewer toxic fumes when exposed to fire, making them safer for indoor environments.

This characteristic ensures compliance with safety codes and regulations, providing protection in the event of a fire and reducing risks to both human safety and property. Such attributes make plenum-rated cable the appropriate choice for installations in areas where air movement occurs and fire safety is a priority, distinguishing it from other types of cabling that may not provide these fire-resistant qualities.