Underground Railway System
About the project
Underground systems need to be installed with fire survival cables (MICC) due to the unique nature of the environment. London Underground actually devised a test for fire survival cables that are needed. The aim of the tests was to extend the conditions of BS 6387 to effectively recreate a more realistic fire scenario demonstrating what the cables may be subjected to in the event of a fire. This involves thermal shock and DIRECT impact on the cable sample. In a true fire scenario, cables have to survive not only the extremes of high temperature, but also the impact from falling debris together with water and foam exposure. In the resulting aftermath of a fire, a cable may be required to withstand bending, impact and water immersion whilst remaining operational.
MICC is installed as it goes above and beyond these tests, as it is the ONLY true fire survival cable.