PRODUCTSFire Resistant Signal & Data Cables Fire Resistant RS485 Databus Cables APPLICATION The cables are designed for RS485 data connections where continued functionality is required during a fire situation. This cable combines low capacitance insulation with one of the highest levels of screening to provide high speed, interference free, data transmission where continued functionality is required during a fire situation. STANDARDS Basic design to EIA/TIA 485 FIRE PERFORMANCE Circuit Integrity | IEC 60331-23; BS 6387 CWZ; DIN VDE 0472-814(FE180); CEI 20-36/2-1; SS229-1; NBN C 30-004 (cat. F3); NF C32-070-2.3(CR1) | System circuit integrity | DIN 4102-12, E30 depending on lay system | Flame Retardance (Single Vertical Wire Test) | EN 60332-1-2; IEC 60332-1-2; BS EN 60332-1-2; VDE 0482-332-1 ; NBN C 30-004 (cat. F1); NF C32-070-2.1(C2); CEI 20-35/1-2; EN 50265-2-1*; DIN VDE 0482-265-2-1* | Reduced Fire Propagation (Vertically-mounted bundled wires & cable test) | EN 60332-3-24 (cat. C); IEC 60332-3-24; BS EN 60332-3-24; VDE 0482-332-3; NBN C 30-004 (cat. F2); NF C32-070-2.2(C1); CEI 20-22/3-4; EN 50266-2-4*; DIN VDE 0482-266-2-4 | Halogen Free | IEC 60754-1; EN 50267-2-1; DIN VDE 0482-267-2-1; CEI 20-37/2-1 ; BS 6425-1* | No Corrosive Gas Emission | IEC 60754-2; EN 50267-2-2; DIN VDE 0482-267-2-2; CEI 20-37/2-2 ; BS 6425-2* | Minimum Smoke Emission | IEC 61034-1&2; EN 61034 -1&2; DIN VDE 0482-1034-1&2; CEI 20-37/3-1&2; EN 50268-1&2*; BS 7622-1&2* | No Toxic gases | NES 02-713; NF C 20-454 |
Note: Asterisk * denotes superseded standard.. CABLE CONSTRUCTION Multipair RS 485 Overall Screened Databus Cable Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2. Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation. Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize crosstalk. Two pair cable had four cores laid in quad formation. Cabling: Pairs are cabled together in concentric layers. Overall screen: Aluminum/polyester tape with tinned copper drain wire. Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.) Multipair RS 485 Overall Double Screened Databus Cable Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2. Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation. Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize crosstalk. Two pair cable had four cores laid in quad formation. Cabling: Pairs are cabled together in concentric layers. Overall screen: Aluminium/polyester tape+copper wire braid. Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.) Multipair RS 485 Individual & Overall screened Databus Cable Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2. Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation. Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize crosstalk. Two pair cable had four cores laid in quad formation. Cabling: Pairs are cabled together in concentric layers. Individual Screen: Individual aluminium/polyester tape. Overall Screen: Copper wire braid. outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.) Multipair RS 485 Overall Screened Databus Cable Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2. Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation. Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize crosstalk. Two pair cable had four cores laid in quad formation. Cabling: Pairs are cabled together in concentric layers. Overall Screen: Copper wire braid. Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound type SW2-SW4 as per BS 7655-2.6 can be offered.) Physical AND THERMAL PROPERTIES Temperature range during operation (fixed state): -20°C - +90°C Temperature range during installation (mobile state): -5°C - +60°C Minimum bending radius: 8 x Overall Diameter Electrical Properties Dielectric test | 1000 V r.m.s. for 5’ (core-core) | | 1000 V r.m.s. for 5’ (core-screen) | Impedance | 120Ω | Capacitance | 45 nF/km conductor to conductor | | 90 nF/km conductor to shield |

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