Electrical Contracting News (ECN) July 2017 - Page 31

INGRESS PROTECTION Cable protection across the rail industry is vital for efficiency and safety. Its role within signalling is critical and its failure due to immersion under water would add to the maintenance and compensation costs faced after the event. In response Network Rail has upgraded its PADS approval for flexible conduits, glands and accessories for use in signalling and infrastructure to include provisions for applications prone to flooding or prolonged immersion under water. It’s also time to reexamine the Ingress Protection rating system, because some of the tests may simply not be up to the job in hand. Table 1 – IP ratings. Can we trust manufacturers’ IP ratings claims? Whilst BS EN