IP codes: how to find the right cable protection system
A typical Monday morning in the winter: there is gridlock in the tunnel carrying thousands of commuters into the city. Endless queues of cars are pumping out clouds of exhaust emissions. Melting snow from the vehicles drips and mixes with grit, oil and brake dust in muddy rivulets between the lanes. Humidity is high, in spite of the cold. Once the traffic starts flowing again, salty, muddy spray fills the air.
But all systems are working properly. If a vehicle caught on fire, the alarm would activate. Fortunately, the tunnel was equipped with a carefully planned cable protection system.