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    Fire Resistant RS 485 Databus Cables

    i
    • Fire Resistant RS 485 Databus Cables
    • RS485 Cable

    APPLICATION

    The cables are designed for RS 485 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 adapted to EIA/TIA 485

    FIRE PERFORMANCE

    Circuit Integrity IEC 60331-23; BS 6387 CWZ (Optional)
    Flame Retardance (Single Vertical Wire or cable test) IEC 60332-1-2; EN 60332-1-2
    Reduced Fire Propagation (Vertically-mounted bundled wires & cables test) IEC 60332-3-24; EN 60332-3-24
    Halogen Free IEC 60754-1; EN 50267-2-1
    No Corrosive Gas Emission IEC 60754-2; EN 50267-2-2
    Minimum Smoke Emission IEC 61034-2; EN 61034-2

    CABLE CONSTRUCTION

    MULTIPAIR RS 485 OVERALL SCREENED DATABUS CABLE

    Conductor Tinned copper wire, stranded according to IEC 60228 class 2.
    Insulation Foam PE or foam skin PE+SR.
    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 Fire Barrier Mica glass tape.
    Overall Screen Aluminum/polyester tape with tinned copper drain wire.
    Outer Sheath Halogen-free flame retardant 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).
    Outer Sheath Option UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.

    MULTIPAIR RS 485 OVERALL DOUBLE SCREENED DATABUS CABLE

    Conductor Tinned copper wire, stranded according to IEC 60228 class 2.
    Insulation Foam PE or foam skin PE.
    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 Fire Barrier Mica glass tape.
    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).
    Outer Sheath Option UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.

    MULTIPAIR RS 485 INDIVIDUAL & OVERALL SCREENED DATABUS CABLE

    Conductor Tinned copper wire, stranded according to IEC 60228 class 2.
    Insulation Foam PE or foam skin PE.
    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 Fire Barrier Mica glass 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).
    Outer Sheath Option UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.

    MULTIPAIR RS 485 OVERALL SCREENED DATABUS CABLE

    Conductor Tinned copper wire, stranded according to IEC 60228 class 2.
    Insulation Foam PE or foam skin PE.
    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 Fire Barrier Mica glass 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).
    Outer Sheath Option UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.

    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

    CONSTRUCTION PARAMETERS

    Multipair RS 485 Overall Screened Databus Cable

    RE-m02Y(St)H-FR/ RE-m02YS(St)H-FR

    No.of Pair Nominal Cross Sectional Area No./Nominal Diameter of Strands Nominal Insulation Thickness Nominal Sheath Thickness Approx. Overall Diameter Approx.Weight
    No. mm² no/mm mm mm mm kg/km
    1 0.22 7/0.2 1.2 1.1 6.6 73
    2 0.22 7/0.2 1.2 1.1 10.9 136
    4 0.22 7/0.2 1.2 1.1 12.6 214
    1 0.50 16/0.2 1.2 1.1 7.2 88
    2 0.50 16/0.2 1.2 1.1 12.0 165
    4 0.50 16/0.2 1.2 1.1 14.0 266
    1 0.75 24/0.2 1.2 1.1 7.6 100
    2 0.75 24/0.2 1.2 1.1 12.8 189
    4 0.75 24/0.2 1.2 1.1 15.0 309
    1 1.00 30/0.2 1.2 1.1 7.8 106
    2 1.00 30/0.2 1.2 1.1 13.1 199
    4 1.00 30/0.2 1.2 1.1 15.3 328

    Multipair RS 485 Overall Double Screened Databus Cable

    RE-m02Y(St)CH-FR / RE-m02YS(St)CH-FR

    No.of Pair Nominal Cross Sectional Area No./Nominal Diameter of Strands Nominal Insulation Thickness Nominal Sheath Thickness Approx. Overall Diameter Approx.Weight
    No. mm² no/mm mm mm mm kg/km
    1 0.22 7/0.2 1.2 1.1 7.1 91
    2 0.22 7/0.2 1.2 1.1 11.4 168
    4 0.22 7/0.2 1.2 1.1 13.1 252
    1 0.50 16/0.2 1.2 1.1 7.7 108
    2 0.50 16/0.2 1.2 1.1 12.5 201
    4 0.50 16/0.2 1.2 1.1 14.5 308
    1 0.75 24/0.2 1.2 1.1 8.1 121
    2 0.75 24/0.2 1.2 1.1 13.3 228
    4 0.75 24/0.2 1.2 1.1 15.5 355
    1 1.00 30/0.2 1.2 1.1 8.8 128
    2 1.00 30/0.2 1.2 1.1 13.6 238
    4 1.00 30/0.2 1.2 1.1 15.8 375

    Multipair RS 485 Individual & Overall screened Databus Cable

    RE-m02Y(St)CH PiMF-FR / RE-m02YS(St)CH-FR PiMF-FR

    No.of Pair Nominal Cross Sectional Area No./Nominal Diameter of Strands Nominal Insulation Thickness Nominal Sheath Thickness Approx. Overall Diameter Approx.Weight
    No. mm² no/mm mm mm mm kg/km
    1 0.22 7/0.2 1.2 1.1 7.4 94
    2 0.22 7/0.2 1.2 1.1 12.1 176
    4 0.22 7/0.2 1.2 1.1 14.0 266
    1 0.50 16/0.2 1.2 1.1 8.0 111
    2 0.50 16/0.2 1.2 1.1 13.3 210
    4 0.50 16/0.2 1.2 1.1 15.5 325
    1 0.75 24/0.2 1.2 1.1 8.4 125
    2 0.75 24/0.2 1.2 1.1 14.2 237
    4 0.75 24/0.2 1.2 1.1 16.6 372
    1 1.00 30/0.2 1.2 1.1 8.6 131
    2 1.00 30/0.2 1.2 1.1 14.5 248
    4 1.00 30/0.2 1.2 1.1 17.0 393

    Multipair RS 485 Overall Screened Databus Cable

    RE-m02YCH-FR / RE-m02YSCH-FR

    No.of Pair Nominal Cross Sectional Area No./Nominal Diameter of Strands Nominal Insulation Thickness Nominal Sheath Thickness Approx. Overall Diameter Approx.Weight
    No. mm² no/mm mm mm mm kg/km
    1 0.22 7/0.2 1.2 1.1 6.9 86
    2 0.22 7/0.2 1.2 1.1 11.2 160
    4 0.22 7/0.2 1.2 1.1 13.0 243
    1 0.50 16/0.2 1.2 1.1 7.5 123
    2 0.50 16/0.2 1.2 1.1 12.3 193
    4 0.50 16/0.2 1.2 1.1 14.3 299
    1 0.75 24/0.2 1.2 1.1 7.9 116
    2 0.75 24/0.2 1.2 1.1 13.1 219
    4 0.75 24/0.2 1.2 1.1 15.3 344
    1 1.00 30/0.2 1.2 1.1 8.0 122
    2 1.00 30/0.2 1.2 1.1 13.4 229
    4 1.00 30/0.2 1.2 1.1 15.6 364
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