What do Fire Survival Cables do?
Fire Survival Cables are not the same as regular fire alarm cables in terms of construction. The Copper Conductor is wrapped in a specially designed heat barrier high temperature sustaining tape, which is covered with fire resistant insulation, preventing fire from reaching the conductor surface. At high temperatures such as 750°C and 950°C, the cable continues to function under a variety of conditions, operations, and applications.
Sri Padmavathi Cables' range of Fire Survival Cables are designed to withstand high temperatures for a specific amount of time in case of fire outbreak. These cables are designed to maintain their form even after being exposed to fire with High Temperature Sustaining Glass Mica Tape Wrapped Over Copper Conductor with an inner sheath of General Purpose PVC/ Flame Retardant (FR PVC) Flame Retardant Low Smoke.
What are the variants in Fire Survival Cables?
Category A) Cables are Subject to Fire at 650°C. for 180 Minutes.
Category B) Cables are Subject to Fire at 750°C. for 180 Minutes.
Category C) Cables are Subject to Fire at 950°C. for 180 Minutes.
Category S) Cables are Subject to Fire at 950°C. for 20 Minutes. (short Duration)
Category W) Cables Are Subject to Fire at 650°C. For 15 Minute, Then. at 650°C with Water Spray Further 15 Minutes.
BS 6387 (Category X) Cables are Subject to Fire at 650°C. With Mechanical Shock for 15 Minutes.
BS 6387 (Category Y) Cables are Subject to Fire at 750°C. With Mechanical Shock for 15 Minutes.
BS 6387 (Category Z) Cables are Subject to Fire at 950°C. With Mechanical Shock for 15 Minutes.
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The Construction of Fire Survival Cables are Different From the Ordinary Fire Alarm Cables. The Copper Conductor is Wrapped with a Specially Designed Heat Barrier High Temperature Sustaining Tape & Fire Resistant Insulation is Covered over Heat Barrier Tape, Which Resists The Fire to Reach the Conductor Surface. The Cable Continues to Remain into Operation at High Temperatures Like 750°C and 950°C of Various Conditions, Operation and Application.
Circuit Integrity Test & Procedure: As Per BS : 6387: 1994. & IEC 60331-21-31 The Test is Carried out on the Cable Operation on Load and Burning at a Temperature of 650°C 750°C for 2 Hrs or 950°C for 3 Hrs. The Cable is Put on Clamps above the Fire Burner of High Flames. The Power Supply is Connected to one end of the Cable at a Rated Voltage and Load is Connected to other End. Fire Applied for 3 Hrs and During This Period the Circuit Integrity must be Uninterrupted
As Per BS : 6387. Resistance to Fire Alone:
Category A) Cables are Subject to Fire at 650°C. for 180 Minutes.
Category B) Cables are Subject to Fire at 750°C. for 180 Minutes.
Category C) Cables are Subject to Fire at 950°C. for 180 Minutes.
Category S) Cables are Subject to Fire at 950°C. for 20 Minutes. (short Duration)
Resistance to Fire with Water:
Category W) Cables Are Subject to Fire at 650°C. For 15 Minute, Then. at 650°C with Water Spray Further 15 Minutes.
As Per IEC 60331-21: Cables are Subject to Fire at 750°C. For 90 Minutes Followed by 15 Minutes Cooling Period.
Resistance to Fire with Mechanical Shock:
BS 6387 ( Category X) Cables are Subject to Fire at 650°C. With Mechanical Shock for 15 Minutes
BS 6387 ( Category Y) Cables are Subject to Fire at 750°C. With Mechanical Shock for 15 Minutes
BS 6387 ( Category Z) Cables are Subject to Fire at 950°C. With Mechanical Shock for 15 Minutes
IEC 60331-31: Cables are Subject to Fire at 830°C. With Mechanical Shock for 120 Minutes
Standards: BS : 6387 & IEC 60331-21
Voltage Grade: 1100V
Construction: 2,4, 6 & 8 Core Etc.
Range: 0.5/0.75/1.0 / 1.5 / 2.5 , 4 .0 sq mm
Conductor: Annealed Plain/Tinned Electrolytic Grade, Solid/ Stranded/Flexible Copper Conductor
Class: 1, 2 or 5 IS 8130
Fire Barrier: High Temperature Sustaining Glass Mica Tape Wrapped Over Copper Conductor.
Insulation: PVC/HR PVC/ XLPE/PE/ IS : 5831, IS 7098 ( P-1)
Identification: Core-coloured Insulation or by Number Printing/Numbered Polyester Tape
Twisting: 2 Insulated Cores shall be twisted to form a Pair
Laying: 3 Cores are more Cores are Laid up Together with Suitable lay Length.
Fire Barrier Tape: High Temperature Sustaining Glass Mica Tape Wrapped Over laid up Cores.
Inner Sheath: General Purpose PVC/ Flame Retardant (FR PVC) Flame Retardant Low Smoke /FRLS/LSZH. IS 5831.
Armouring: Galvanized Steel Wire / Flat Strip or SS Wire Braiding IS : 3975
Outer Sheath: Flame Retardant Low Smoke (FLRS) / Low Smoke Zero Halogen (LSZH).
Application: Building Automation, High Rise Buildings, Hospitals, Shopping Malls, Air Ports, Cement, Power Plants, Pharma, Aviation, Shipping, Steel, Integrated Building Management Systems (IBMS)
