Fire Resistant Cable 

Fire Resistant Cable

Fire Resistant RS485 Databus 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

VOLTAGE RATING
60V

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Note: Asterisk * denotes superseded standard.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

CONSTRUCTION PARAMETERS

Multipair RS 485 Overall Screened Databus Cable
RE-m02Y(ST)H-FR / RE-m02YS(ST)H-FR
RE-S02Y(ST)H-FR / RE-S02YS(ST)H-FR

No.of
pair x

Nominal Cross Sectional Area

No./Nominal Diameter of Strands

Nominal Insulation thickness

Nominal Sheath thickness

Nominal Overall Diameter

Approx.
Weight

 

mm2

No/mm

mm

mm

mm

kg/km

1

0.22

7/0.2

0.55

0.40

4.6

29

2

0.22

7/0.2

0.55

0.40

8.1

60

4

0.22

7/0.2

0.55

0.40

9.6

100

1

0.50

16/0.2

0.55

0.40

5.2

44

2

0.50

16/0.2

0.55

0.40

9.3

91

4

0.50

16/0.2

0.55

0.40

11.1

158

1

0.75

24/0.2

0.55

0.40

5.6

56

2

0.75

24/0.2

0.55

0.40

10.3

117

4

0.75

24/0.2

0.55

0.40

12.2

207

1

1.00

30/0.2

0.55

0.40

5.8

61.4

2

1.00

30/0.2

0.55

0.40

10.6

128

4

1.00

30/0.2

0.55

0.40

12.5

228

Multipair RS 485 Overall Double Screened Databus Cable
RE-m02Y(ST)CH-FR / RE-m02YS(ST)CH-FR
RE-S02Y(ST)CH-FR / RE-S02YS(ST)CH-FR

No.of
pair x

Nominal Cross Sectional Area

No./Nominal Diameter of Strands

Nominal Insulation thickness

Nominal Sheath thickness

Nominal Overall Diameter

Approx.
Weight

 

mm2

No/mm

mm

mm

mm

kg/km

1

0.22

7/0.2

0.55

0.40

5.0

45

2

0.22

7/0.2

0.55

0.40

8.6

88

4

0.22

7/0.2

0.55

0.40

10.1

134

1

0.50

16/0.2

0.55

0.40

5.6

61

2

0.50

16/0.2

0.55

0.40

9.8

124

4

0.50

16/0.2

0.55

0.40

11.5

197

1

0.75

24/0.2

0.55

0.40

6.1

75

2

0.75

24/0.2

0.55

0.40

10.7

154

4

0.75

24/0.2

0.55

0.40

12.7

250

1

1.00

30/0.2

0.55

0.40

6.3

81

2

1.00

30/0.2

0.55

0.40

11.0

166

4

1.00

30/0.2

0.55

0.40

13.0

273

Multipair RS 485 Individual & Overall screened Databus Cable
RE-m02Y(ST)H pimf-FR / RE-m02YS(ST)H pimf-FR
RE-S02Y(ST)H pimf-FR / RE-S02YS(ST)H pimf-FR

No.of pair
x

Nominal
Cross Sectional Area

No./Nominal Diameter of Strands

Nominal Insulation thickness

Nominal Sheath thickness

Nominal Overall Diameter

Approx.
Weight

 

mm2

No/mm

mm

mm

mm

kg/km

1

0.22

7/0.2

0.55

0.40

4.9

46

2

0.22

7/0.2

0.55

0.40

8.6

91

4

0.22

7/0.2

0.55

0.40

10.1

144

1

0.50

16/0.2

0.55

0.40

5.5

62

2

0.50

16/0.2

0.55

0.40

9.8

127

4

0.50

16/0.2

0.55

0.40

11.6

209

1

0.75

24/0.2

0.55

0.40

6.0

76

2

0.75

24/0.2

0.55

0.40

10.7

157

4

0.75

24/0.2

0.55

0.40

12.7

263

1

1.00

30/0.2

0.55

0.40

6.2

83

2

1.00

30/0.2

0.55

0.40

11.0

170

4

1.00

30/0.2

0.55

0.40

13.0

286

Multipair RS 485 Overall Screened Databus Cable
RE-m02YCH-FR / RE-m02YSCH-FR
RE-S02YCH-FR / RE-S02YSCH-FR

No.of pair
x

Nominal
Cross Sectional Area

No./Nominal Diameter of Strands

Nominal Insulation thickness

Nominal Sheath thickness

Nominal Overall Diameter

Approx.
Weight

 

mm2

No/mm

mm

mm

mm

kg/km

1

0.22

7/0.2

0.55

0.40

4.8

41

2

0.22

7/0.2

0.55

0.40

8.4

82

4

0.22

7/0.2

0.55

0.40

9.9

127

1

0.50

16/0.2

0.55

0.40

5.4

57

2

0.50

16/0.2

0.55

0.40

9.6

117

4

0.50

16/0.2

0.55

0.40

11.4

189

1

0.75

24/0.2

0.55

0.40

5.9

71

2

0.75

24/0.2

0.55

0.40

10.5

146

4

0.75

24/0.2

0.55

0.40

12.4

241

1

1.00

30/0.2

0.55

0.40

6.0

77

2

1.00

30/0.2

0.55

0.40

10.8

158

4

1.00

30/0.2

0.55

0.40

12.8

264