High Temperature Cables

High temperature cables are used in areas where both working temperatures and ambient temperatures are too high. They are made with a wide range of conductors, insulating materials and screening materials depending on the temperatures and conditions under which the cable has to perform.

Single core high temperature hook-up wires & Multi core / Multi pair, Screened & Unscreened and Armoured & Unarmoured cables:

Construction - Single Core or Multi Core / Pairs
Voltage Grade - 250VAC, 600VAC & 1000VAC (Rating as per MIL 16878, VDE, DIN, ANSI)
Conductors - Annealed bare and/or tinned copper conductor (up to 120° C)
Annealed silver plated copper conductor (up to 200° C)
Nickel plated conductors (up to 260° C)
Fire Barrier - Glass mica tape
Insulation - Silicone rubber or Cross linked
polyolefin elastomer
Screening - Individual and/or overall with following options -
- Aluminum Mylar/Copper Tape with Tinned Copper Drain Wire or
- Braided with Bare or Tinned or Nickel Plated or Silver Plated Copper
Innter Sheath - LSOH / ZHFR or equivalent
Armouring - Galvanised Steel wire helical armouring or wire braiding
Outer Sheath - LSOH / ZHFR or equivalent
Standards - BS:5308 or equivalent with fire resistance to BS:6387 category CWZ and
IEC:60331 tested for 950°C for 3 hrs.
Insulation Temperature Range Characteristics
Varnished Fibre
Glass Braid		 -72° C to 350° C High Temperature Resistance
FEP -200° C to 200° C Good Chemical Resistance
Thin wall insulation due to good electrical properties
PFA -200° C to 250° C Good Chemical Resistance, Thin wall insulation
due to good electrical properties, Good flexibility
PTFE -200° C to 260° C Excellent chemical resistance , High temperature stability
Kapton tape -250° C to 300° C Very thin wall insulation, High temperature resistance
PEEK -160° C to 250° C Mechanically very tough
High temperature and radiation resistance
ETFE -150° C to 150° C Mechanically tough
Silicone Rubber -40° C to 200° C Flexible & abrasion resistance

Screening: Individual and/or overall with following options -
- Aluminum Mylar/Copper Tape with Tinned Copper Drain Wire or
- Braided with Bare or Tinned or Nickel Plated or Silver Plated Copper

Armouring: Armouring of galvanized wire, stainless steel wire, high strength steelwire etc.

Standards: Conforming to IS 8130/ IEC 60228 / VDE 0295

Industry & Applications

Steel Cables for blast furnace, electric arc furnace, hot & cold rolling mills, steel refining facilities etc.    
Communication High frequency co-axial cables for VHF, UHF and XHF transmission
Marine Engine proximity wiring for good resistance to high temperatures, fuel oils, chemicals, saline air/water etc.
Petrochemical Instrumentation & control, temperature sensing, fire warning etc.
Power In proximity to the turbines, boilers, ash handling etc.