LSZH Flame Retardant Armored RS 485 Databus Cables

RE-02Y(St)HGSWBH

APPLICATION

The cables are designed for RS485 data connections. It combines low capacitance insulation and screening to provide high speed, interference free and data transmission. The galvanized steel wire braid armor provides excellent protection. The LSZH sheath can reduce toxic smoke and fume emission.

STANDARDS

Basic design adapted to EIA/TIA 485

FIRE PERFORMANCE

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
CPR Compliance	B2ca,Cca

CABLE CONSTRUCTION

Conductors : Stranded Annealed Tinned Copper.

Insulation : Foam PE or foam skin PE.

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.

Braiding : Tinned copper wire braid.

Inner Sheath : LSZH compound. Black color.

Armor : Galvanized steel wire braid with 85% coverage.

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 (fixed state) : -20°C - +70°C

Temperature range during installation (mobile state) : -5°C - +60°C

Minimum bending radius : 15 × 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

 

No.of Pair	Conductor Size	No./Nominal Diameter of Strands	Nominal Insulation Thickness	Approx. Overall Diameter
No.		no./mm	mm	mm
1	18	7/0.4	0.56	11.5
2	18	7/0.4	0.56	14.5
4	18	7/0.4	0.56	17.5
1	20	7/0.32	0.56	11.0
2	20	7/0.32	0.56	13.5
4	20	7/0.32	0.56	15.0
1	22	7/0.254	0.56	10.5
2	22	7/0.254	0.56	12.5
4	22	7/0.254	0.56	14.5
1	24	7/0.2	0.56	10.0
2	24	7/0.2	0.56	12.0
4	24	7/0.2	0.56	14.0