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INCOL Rubber Cables

Rubber insulation holds its place for certain application where high flexibility is required. Rubber insulation also permits simpler splices and termitions. Synthetic rubber such as Butyle rubber, Ethylene Propylene rubber, Polychloroprene rubber, Chlorosulphonated polyethylene rubber have better Heat Resistance, Ozone resistance, Oil resistance and resistance against alimiatic influences as compared to Natural rubber. Out of the all Synthetic rubber, silicone rubber has excellent dielectric characteristics. It is possible to operate silicone rubber insulated cable at conductor temperature of up to 180 Deg. C continuously and even up to 250 Deg. C temporarily.

High ambient temperature in a Steel, Chemical, Sugar Plants or in Aeronautics, Ships, Coalfields and refineries call for cable which can withstand the sever ageing conditions during operation and also to ensure current rating at constant ambient temperature. EPR/Butyle rubber insulation stands up to 85 Deg. C continuous conductor temperature at operating condition. The Polychloroprene rubber, Chlorosulphonated, Nitrile sheathing are formulated with high abrasion resistance, Oil Weather and Fire resistance Properties. EPR insulation with CSP sheathing can withstand high ambient condition having long durable ageing properties. For selection of right type of Elastomeric cable, the comparative characterstics have been in chart given below.

Material Natural Rubber (Nr) Styerene Butadine Rubber (Sbr) Ethylene Propylene Rubber (Epr) Polychlo Roprene Rubber (Pcp) Nitrile Butadiene Rubber (Nbr) Chloro Sulphonated (Csp) Silicon Rubber (Sr)

Mechanical Properties

Tensile Strength E G G G F G F
Tear Resistance E F P G G G G
Abrasion Resistance E E G G E G F
Impact Resistance E E F G G G G
Impermeability Gas G F G G G E F

Durability

Weather Resistance F F G E G E E
Ozone Resistance P P E G G E E
Acid Resistance G G G G E G E
Alkali Resistance G G G G E G E
Flame Resistance G G G G F E P
GasolineKerosene Resistance P P P G F E F
Degreaser Solvent Resistance P P P G F E F
Oxidation Resistance P F G G F E E

Electrical Properties

Insulation Resistance G G G P P F G
Voltage Breakdown G G G F F G G
A.C. Losses G G G P P F G
Cont. Limiting Temp. Deg.C 60 60 90 90 90 95 150
Max. Overload 150 150 180 150 150 160 250
Max. Short Circuit 150 150 250 160 160 200 350

P – Poor F – Fair G – Good E – Excellent