Radio Frequency Systems’ DragonSkin RF coaxial cable has passed UL testing to be certified for use in buildings without additional fire protection — the first such coaxial cable to be certified, according to RFS.

Fire resistant coaxial cables maintain cellular and public safety radio communications to all floors of a burning building, a critically important capability during fires in high-rise buildings, where many people may be located above the fire.

Historically, fire protected cables in buildings are either shielded in metal conduit or extensively wrapped in fire-resistant materials, which increases cable size, weight and cost. The fire protection reduces the cable’s bending radius, making installation more difficult, time consuming and expensive, especially where buildings are being retrofitted.

RFS’ DragonSkin coaxial cable does not require routing in conduit or wrapping in protective material, and the cable’s red color identifies it as a mission-critical communications cable. Only a half-inch in diameter, the coax has a tight bending radius, which simplifies and reduces the cost of installation. The size is also compatible with standard RF connectors.

“We are extremely proud to share the news that our innovative heat- and waterproof DragonSkin cable has passed the incredibly challenging UL 2196 certification test,” says Tom Kuklo, global product manager for in-building solutions at RFS.

The UL 2196 certification test subjects cables to the high heat and water conditions that occur during severe fires in buildings, ensuring the cable continues to operate. An in-building coaxial cable must survive when it is exposed to temperatures up to 1,000°C (1,832 °F) for two hours, then suddenly cooled with water from a fire hose.

In-building cables with UL 2196 certification are required in a number of jurisdictions in the U.S.

RFS’ indoor cables meet key fire safety standards, including CMP, CATVP, CPR and the Canadian CSA C.22.2/FT6 standards.