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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Note: Asterisk * denotes superseded standard.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