Customized Products

Fire Resistant RS485 Databus Cables to IEC60331-21

2x2x0.5mmsq Solid Cu/MICA/PE/Fire Barrier/OS+DW/LSZH

Fire Resistant RS485 Databus Cables to IEC60331-21

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 ire 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

Conductors: Bare/tinned copper wire, stranded according to IEC 60228 class 1or class2.

Insulation: Mica glass tape PE or 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 fame 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

Conductors: Bare/tinned copper wire, stranded according to IEC 60228 class 1or class2.

Insulation: Mica glass tape PE or 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: 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 CWB OVERALL SCREENED DATABUS CABLE

Conductors: Bare/tinned copper wire, stranded according to IEC 60228 class 1or class2.

Insulation: Mica glass tape PE or 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: 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 (ixed 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:

1200

Nom. mutual capacitance:

45+/-5 nF/km conductor to conductor

 

80+/-10 nF/km conductor to shield

Nom. conductor resistance@ 20°C

36.8 ohm/km

Nominal Velocity of Propagation:

66%

 

Nominal attenuation@1Mhz:

2 dB/100m

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

1/0.8

1.2

1.1

7.2

88

2

0.50

1/0.8

1.2

1.1

13.5

165

4

0.50

1/0.8

1.2

1.1

14.9

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