Fire Resistant Instrumention Cables

Application
The 300/500V Mica+XLPE Insulated Individual And Overall Screened Instrumentation Cables are designed, manufactured, and tested as data transmission cables for emergency services. These are used for data and voice transmission when high-frequency signal has to be assured also in the event of a fire.

Construction
Conductor:
Plain annealed copper wire, stranded according to IEC(EN) 60228 class 2
Insulation:
Mica glass tape covered by extruded cross-linked XLPE compound or fire resistant silicone rubber compound
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 cables with 8 pairs or more, 4 pairs are assembled to form a bunch, the bunches are then cabled together.
Individual Screen:
Aluminum/polyester tape with 0.5mm2 screen (7/0.3mm) tinned copper drain wire.
Overall Screen:
Aluminum/polyester tape with 0.5mm2 screen (7/0.3mm) tinned copper drain wire.
Inner Sheath(optional):
Thermoplastic LSZH compound
Armouring(optional):
Galvanized steel wire armour
Outer Sheath:
Thermoplastic LSZH compound

Type:

300/500V Mica+XLPE/SR Insulated & Overall Screened Multicore Instrumentation Cables
300/500V Mica+XLPE/SR Insulated & Overall Screened Multipair Instrumentation Cables
300/500V Mica+XLPE Insulated Individual & Overall Screened Instrumentation Cables
300/500V Braid-Screened Flexible Equipment Cables (Multipair)

Standards
Basic design to BS 5308/BS 7629-1
 
Color Code
Insulation Colour: White with black numbering.
Sheath Colour: Orange (other colors on request).
 
Physical And Thermal Properties
Temperature range during operation (fixed state): -30°C – +70°C
Temperature range during installation (mobile state): -20°C – +50°C
 
Minimum bending radius:
6 x Overall Diameter (unarmoured cables with silicone rubber insulation)
8 x Overall Diameter (unarmoured cables with XLPE insulation)
10 x Overall Diameter (armored cables)
 
Electrical Properties

DIELECTRIC TEST:	2000 V r.m.s. x 5' (core/core)
INSULATION RESISTANCE	≥1000 MΩ x km (at 20°C);
SHORT CIRCUIT TEMPERATURE	XLPE: 250°C SR: 350°C

 
Parameters

NO. OF PAIRS X CROSS SECTION	NO./ NOMINAL DIAMETER OF STRANDS	NOMINAL INSULATION THICKNESS	UNARMOURED		ARMOURED
			NOMINAL OVERALL DIAMETER APPROX	X. WEIGHT DIAMETER	R UNDER ARMOUR ARMOR	R WIRE DIAMETER	NOMINAL OVERALL DIAMETER APPROX	X. WEIGHT
MM2	NO./MM	MM	MM	KG/KM	MM	MM	MM	KG/KM
2 Pairs
2X2x1.0	7/0.43	0.6	15.2	166	15.2	0.90	20.0	555
2X2x1.5	7/0.53	0.7	17.0	205	17.0	1.25	22.7	769
2X2x2.5	7/0.67	0.8	19.2	350	19.2	1.25	24.9	938
5 Pairs
5X2x1.0	7/0.43	0.6	17.5	335	17.5	1.25	23.2	1000
5X2x1.5	7/0.53	0.7	21.5	433	21.5	1.60	28.1	1352
5X2x2.5	7/0.67	0.8	24.0	592	24.0	1.60	30.8	1665
10 Pairs
10X2x1.0	7/0.43	0.6	22.5	626	22.5	1.60	29.3	1800
10X2x1.5	7/0.53	0.7	28.0	811	28.0	1.60	35.0	2165
10X2x2.5	7/0.67	0.8	31.5	1132	31.5	2.00	39.5	3007
20 Pairs
20X2x1.0	7/0.43	0.6	30.5	1143	30.5	2.00	38.5	3019
20X2x1.5	7/0.53	0.7	38.0	1509	38.0	2.00	46.2	3684
20X2x2.5	7/0.67	0.8	42.5	2112	42.5	2.50	51.9	5107

Note : Other conductor sizes & core configurations are available upon request.