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Customized Products
FIREFLIX Fire Resistant RS485 Databus cable
Foam PE Insulated, Mica Glass Tape, Overall Aluminium/polyester Tape& Tinned Copper Wire Braiding Screened,
LSZH Inner Sheath, Galvanized Steel Wire Armored, LSZH Sheathed Multipair RS 485 Databus Cables ( Part No. :
RE-02Ym(St)CHSWAH)
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 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:
Conductors: Tinned copper wire, stranded according to IEC(EN ) 60228 class 2.
Insulation: Foam PE.
Fire Barrier: Mica Glass Tape
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 1: Overall aluminium/polyester tape.
Overall Screen 2: Tinned copper wire braiding. Inner Sheath: Thermoplastic LSZH compound.
Armoured: Galvanized steel wire.
Outer Sheath: Thermoplastic LSZH compound
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
Eelectrical Properties:
Dielectric test |
2000 V r.m.s. for 5’ (core-core) |
Impedance |
120±20Ω |
Capacitance |
45 nF/km conductor to conductor |
|
90 nF/km conductor to shield |
Construction Parameters:
Cable Code |
No. of Pair |
Nominal Cross Sectional Area |
No./ |
Nominal Insulation Thick- ness |
Steel Wire Armour Diameter |
Nominal Sheath Thick |
Nominal Overall Diameter |
Approx. |
|
No |
mm2 |
No/mm |
mm |
mm |
mm |
mm |
kg/km |
RE-02Ym(St)CHSWAH-2P22AWG |
2 |
0.33 |
7/0.254 |
0.6 |
0.9 |
1.6 |
21.5 |
780 |