Silicon rubber insulated cables are used in electric utilities such as the generation and transmission of electricity. Long service life under normal environment in Nuclear and conventionally powered generating stations plus safety considerations are the significant factors of these electric appliances. When exposed to fire, Silicon offers circuit integrity, low smoke evolution, and freedom from halogen acids.(For e.g. High Furnaces Generator, Electrical Furnaces,Cokd Ovens, Driers, Bakeries & Blast Furnaces).
Applications:
Steel Mills
EOT Cranes
Airport Lighting
Ships
Nuclear & Thermal Power Stations
Wind Power Mills
Electrical Machines
Textile Machines
Construction Equipments
Turbines
GENERAL CONSTRUCTION (Conforming to IS 9968 Part 1) :
Conductor : Annealed tinned Copper wires Solid (Class 1), Stranded (Class 2), flexible (Class 5) complying with the requirement of IS 8130-1984 .
Separator Tape : Suitable material separator tape may be applied over the conductor .
Insulation : General service elastomeric compound Type IE1 of IS 6380-1984
Heat Resisting elastomeric compound Type IE2 of IS 6380-1984
Silicone Rubber Type IE 5 of IS 6380-1984 .
Core Identification :Coloured insulation, Nos.PE tape, Coloured proofed tape, Nos. printing .
Fillers : Natural or synthetic fibers or elastomeric suitable for the operating temperature and compatible with the insulating material .
Sheath : General service sheath Type SE1/SE2 of IS 6380-1984
Heavy Duty Sheath Type SE3/SE4 of IS 6380-1984
Working Temperature of Commonly used Elastomeric Insulating and Sheathing Materials :
|
Material
|
Max.Cond.Temp.
for Continuous opertinuous
operation Deg C.
|
Max. Cond. Temp.
For short circuit Deg C.
|
Min. Working Temp.
Deg C.
|
|
Natural Rubber(VIR & TRS)
|
60
|
200
|
-55
|
|
Ethylene Propylene Rubber (EPR)
|
90
|
250
|
-50
|
|
Polychloroprence (PCP)
|
70
|
200
|
-40
|
|
Chlorosupphonated Polyethylene (CSP)
|
90
|
200
|
-35
|
|
Silicone Rubber
|
150/180
|
350
|
-55
|
|
Hr Natural Rubber (HR VIR)
|
75
|
200
|
-55
|
|
Styrene Butadiene Rubber
|
60
|
200
|
-55
|
|
Butyl Rubber
|
85
|
220
|
-50
|