What type of cabling must you run if you are to utilize the HVAC vents to run network lines?

When running network lines through HVAC vents, it is essential to use plenum-rated cabling. This type of cabling is specifically designed for spaces that facilitate air circulation for heating and cooling systems (the plenum space), which often includes ducts and HVAC areas. Plenum-rated cables have a special fire-resistant jacket that prevents the spread of flames and toxic smoke in the event of a fire.

Using regular or non-plenum-rated cabling in these areas could pose significant safety risks, as standard cables can emit harmful fumes when burned and may not adequately prevent the spread of fire. Crossover cabling, which is designed for connecting two similar devices directly, and shielded cabling, which offers additional protection against electromagnetic interference, do not meet the specific requirements needed for installation in plenum spaces. Therefore, selecting plenum-rated cabling is necessary to ensure compliance with safety standards and to maintain the integrity of the building's air quality and safety features.