Fire Survival Cables

Fire Survival cables are used in sensitive environments to maintain circuit integrity during and after any incidence of fire. They are designed to withstand high temperatures of a defined period without any electrical breakdown.

Technical Data

Approvals:
Voltage Grade: 600/1000V
Operature Temperature: – 40°C to + 90°C
Heat Barrier: Glass Mica Tape Wrapped Over Conductor+
Insulation: Crosslinked Polyethylene (XLPE) according to DS 7655-1.3
Inner Covering Option: The laidup cores may be covered by an optional extrued inner covering separating tape.
Inner Sheath: Extruded FRLS PVC
Armour: Galvanised Steel Round Wire Armoured. (also available with Galvanised Steel Flat Strip Armour, dimensions and weights changes accordingly)
Outer Sheath: Thermoplastic LSZH type LTS 4 according to BS 7655-6.1. Extruded FRLS PVC Outer Sheath, (other colour as per request).
Colour: Black.
Bending Radius: Min. 12 x Overall Diameter
Test Voltage: 3500V AC at (20+5)°C
Reference Standards: IEC 60331, IEC 60332, IEC 60754, BS 7846 ,BS 6387, EN 50290-2-27, EN 50288-7, BS7655, BS 7629-1, 1S7098,1S9968, IS 6380, IS 3675, IEC 60502.
Marking: ELECTRIC CABLE 600/1000V BS 7846-F1 XYZ (NO. OF CORE x SQ.MM)
Note: The Marking of items shall be by embossing or indenting on the oversheath.

Conductor

Annealed plain stranded copper conductor as per IEC 60228, Class-2.
Mica Glass flame barrier tape.
Inner Sheath.

Core Identification

2 core: brown, blue
3 core: brown, black, grey
4 core: blue, brown, black, grey
5 core: green-and-yellow, blue, brown, black, grey
Above 5 core can be supplied with number printing
(All cores: optional number printing)

Advantages

Longer service life	Efficient performance
Able to withstand extreme temperature during fire	High level of mechanical protection and shielding
High dielectric strengthFlame and UV resistant	Heat and moisture resistantChemical and radiation resistant(optional)

TWO CORE 600/1000 V CABLE WITH STRANDARD COPPER CONDUCTOR

Nominal Cross-Sectional area of Conductor	Thickness of Insulation	Thickness of Extruded Bedding	Nominal Steel Normal Wire Diameter	Thickness of oversheath	Approx. Overall Diameter
mm2	mm	mm	mm	mm	mm
1.5	0.6	0.8	0.9	13	13.1
25	0.7	0.8	0.9	1.4	14.2

THREE CORE 600/1000 V CABLE WITH STRANDARD COPPER CONDUCTOR

Nominal Cross-Sectional area of Conductor	Thickness of Insulation	Thickness of Extruded Bedding	Nominal Steel Normal Wire Diameter	Thickness of oversheath	Approx. Overall Diameter
mm2	mm	mm	mm	mm	mm
1.5	0.6	0.8	0.9	13	13.7
25	0.7	0.8	0.9	1.4	15.2

Note: Conductor shall be a circular or compacted circular stranded conductor(Class 2)

TEST REQUIREMENTS FOR FLAME RETARDANT CABLES

TEST	FUNCTION	SPECIFICATION	VALUE
Critical Oxygen Index	To determine the percentage of oxygen required for combustion of insulating material at room temperature	ASTM-D:2863 IS 10810 (Part 58):1998	Oxygen Index shall not be less than 29%
Temperature Index	To determine at what temperature normal content of 21% in air will support combustion of insulating material	ASTM-D:2863 IS 10810 (Part 64): 2003	Temperature Index should be minimum 250°C at 21% of Oxygen
Smoke Density	To determine the (Light Transmission) Visibility during fire of insulating material	ASTM-D:2843	Light Transmission >=60% of Avg
Acid Gas Generation	To ascertain the HCL acid gas released by insulating material during fire.	IEC 60754-1	<=20% of (by weight)
Circuit Intergrity / Fire Survival TestI	To determine the ability of cable to maintain the circuit in flame at 750°C for at least 3 hours (950°C for 3 hours as per BS:6387)	IEC 60331-21	Cable shall withstand 750°C flame temperature and maintains the circuit uninterruptedly.Also for 950°C as per CWZ can be offered