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)

FIREFLIX Fire Resistant RS485 Databus cable

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)
1000 V r.m.s. for 5’ (core-screen)

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 Diameter of Strands

 

Nominal Insulation Thick- ness

 

Steel Wire Armour Diameter

 

Nominal Sheath Thick
-ness

 

Nominal Overall Diameter

 

Approx.
Weight

 

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