Tough Rubber Sheathed (TRS) cable It is used for flexible cables when greater mechanical toughness than PVC is required. The rubber provides an abrasion-resistant, corrosion-resistant, waterproof, protective covering for an insulated electric cable.
Silicone Rubber Cable are made from tinned coated and silver coated copper conductor & coated with special cable grade silicon rubber & cured in CV. Or vulcaniser, Silicone rubber.