Bharat Insulation Company [India] Ltd. Supplies Polyamide - Imide Enamelled Round Copper Wire. Bharat Insulation Company [India] Ltd. Is an ISO 9001:2000 certified company. Polyamide - Imide Enamelled Round Copper Wire is used for all class "H" [200oC] and above applications such as motors for Atomic power station and Space research satellite, Motors for Hermetic applications, Hand tools, Chemicals Industries, Furnaces and motors suitable for working in radioactive atmospheres.