Saffire 6491B - Single Core Zero Halogen, Low Smoke (OHLS®) Draka Saffire 6491B is a single core OHLS® wiring cable designed for installation within conduit, trunking or inside fixed protected environments, such as appliances, switchgear and control gear. The cable is ideal as part of the wiring for non-emergency systems in public buildings where reduction in the volume of smoke and acid gas emissions is beneficial. Construction Manufacturing standard: BS EN 50525-3-41 Conductors: Stranded plain annealed copper wire (Class 2) to BS EN 60228 Insulation: An extruded layer of cross-linked Zero Halogen, Low Smoke (OHLS) compound Physical Characteristics Voltage rating (Uo/U) : 450/750V Note: When installed in an earthed metal enclosure, cables are suitable for voltages up to 1000V a.c. or up to 750V to earth d.c. Max. conductor temp: 90°C Note: Where a conductor operates at a temperature exceeding 70°C it shall be ascertained that the equipment connected to the conductor is suitable for the conductor operating temperature (see regulation 512-1-5 of BS7671, the 17th Edition of IEE Wiring Regulations) Min. bending radius: 6 x overall diameter of cable Curent rating: Refer to tables 4E1A & 4E1B in BS7671 Performance Characteristics Smoke emission: BS EN 61034-2 Acid gas emmision: BS EN 50267-2-1 Flame propagation: BS EN 60332-1-2 A range of insulation colours are available including green/yellow
Single core 6491B Nominal area of conductor mm² Insulation thickness mm Mean diameter (upper limit) mm Approx. weight of cable kg/km Maximum conductor resistance @ 20°C Ω /km 1.5 0.7 3.9 30 12.10 2.5 0.8 4.6 40 7.41 4 0.8 5.1 55 4.61 6 0.8 5.6 80 3.08 10 1.0 7.1 125 1.83 16 1.0 8.1 180 1.15 25 1.2 9.8 280 0.727 35 1.2 10.9 370 0.524 50 1.4 13.4 495 0.387 70 1.4 15.2 700 0.268 95 1.6 17.6 965 0.193 120 1.6 19.3 1190 0.153 150 1.8 21.3 1465 0.124 185 2.0 23.7 1835 0.0991 240 2.2 26.8 2390 0.0754 300 2.4 29.7 3015 0.0601 400 2.6 33.3 3995 0.0470 500 2.8 37.2 5105 0.0366 630 2.8 41.3 6440 0.0283 Prysmian Group, Chickenhall Lane, Eastleigh, SO50 6YU Sales Telephone 01332 345431 Dr ak a64 91BS AFFIRE18 112013 www.drakauk.com