Draka Saffire Railsure – London Underground Approved Single Core Zero Halogen, Low Smoke Cable (OHLS)īS6724 low smoke zero halogen cables emit very low levels of smoke and non-toxic levels of halogen gas (typically under 0.5% HCl emission).īS EN 5 is the British Standard controlling 450/750V electric cables for fire performance applications with halogen-free thermoplastic insulation and low emission of smoke.Draka Saffire BS6724 Auxiliary – Multi-Core Armoured Zero Halogen, Low Smoke Cables (OHLS).Draka Saffire BS6724 – Multi-Core Armoured Zero Halogen, Low Smoke Cable (OHLS).Draka Saffire 6242B – Flat, Twin Core Zero Halogen, Low Smoke Cable (OHLS).Draka Saffire 6491B – Single Core Zero Halogen, Low Smoke Cable (OHLS).Industrial cable glands kitted with PVC gland shrouds emit choking halogen gases including chlorine, bromine and fluorine in fire conditions therefore careful selection of low smoke and fume or low smoke zero halogen cable glands must be undertaken to avoid compromising the performance integrity of the cable circuits and electrical systems. Sensitive electronic equipment in power, control and computer rooms can be damaged.
Standard BS5467 power cables with PVC oversheath emit dense black smoke and acid gases in fire conditions hindering evacuation through reduced visibility while threatening lives through asphyxiation. Todays building specifications ensure the highest levels of public safety and protection through the installation of electrical cable and accessories satisfying British Standards – high density enclosed public buildings include shopping centres, underground rail, airports, tunnels, hospitals and schools.
The confusing proliferation of cable acronyms including LSZH, ZHLS, OHLS, LSF and LSZH can lead to dangerous under-specification of fire performance cables – the cable terms are not interchangeable, there are vital differences. Understanding the relationship between fire, cables and cable glands and their impact in fire safety is essential to safeguarding life and protecting buildings. Zero Halogen, Low Smoke Cables & Accessories
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