Which cable is designed with a fire-resistant jacket that produces less toxic smoke when burned?

Which cable is designed with a fire-resistant jacket that produces less toxic smoke when burned?

• A. Plenum-Rated Cable
• B. Cat6a
• C. 802.11a
• D. Single-Mode Fiber

Answer: (A)

In building wiring for air-handling spaces, the priority is minimizing smoke and toxic gases in a fire. Plenum-rated cables are designed with jackets that burn less aggressively and emit far less toxic smoke, meeting strict standards for safety in ducts and plenums. This allows for safer evacuation and reduced hazard spread when a fire occurs in areas where ventilation paths are used. While Cat6a is a copper Ethernet cable and can come with various jacket types, it isn’t defined by a fire-smoke performance requirement. The other options—one representing a wireless networking standard, the other a type of fiber optic cable—do not pertain to a jacket engineered to limit smoke and toxicity in a fire.

In building wiring for air-handling spaces, the priority is minimizing smoke and toxic gases in a fire. Plenum-rated cables are designed with jackets that burn less aggressively and emit far less toxic smoke, meeting strict standards for safety in ducts and plenums. This allows for safer evacuation and reduced hazard spread when a fire occurs in areas where ventilation paths are used. While Cat6a is a copper Ethernet cable and can come with various jacket types, it isn’t defined by a fire-smoke performance requirement. The other options—one representing a wireless networking standard, the other a type of fiber optic cable—do not pertain to a jacket engineered to limit smoke and toxicity in a fire.