Road and rail tunnels, along with passenger stations, require a reliable electrical power supply to operate safely. The Life Safety Emergency circuits in these environments must remain functional during emergencies. Such emergencies in enclosed areas, like tunnels, can include collapses or accidents, but the most severe and likely threat is fire.
Fire poses a danger to people even at a distance from the source, primarily not because of the intense heat, but due to the effects of smoke and toxic combustion gases. Smoke and these harmful gases can spread faster than people can safely escape. Therefore, the cables used in tunnels and passenger stations must meet stringent specifications regarding flame propagation, smoke density, halogen content, and toxicity to ensure the safety of passengers in the event of a fire.
Prysmian has developed innovative cable designs and materials that comply with the National Fire Protection Association (NFPA) safety codes for both Transit and Passenger Rail Systems (NFPA 130) and for Road Tunnels and Bridges (NFPA 502). We offer a comprehensive range of products adhering to NFPA 130 and 502 standards for road tunnels as well as underground, surface, and elevated fixed guideway transit and passenger rail systems. This includes fire-rated power and communication cables, as well as low-smoke zero-halogen (LSZH) cables.
