Winding-type noise-suppressing high-tension resistive cord

摘要

There is disclosed a winding-type noise-suppressing high-tension resistive cord including a core having original characteristics and made of a base polymer which is less expensive EPR. The core (12) includes a polymer having ferrite powder mixed therein for extrusion-coating a reinforcing string (11), and a resistance wire (13) is coiled around the core (12) and then is sequentially coated with an insulating layer (14), a reinforcing braid (15) and a sheath (16). The polymer is a blend of ethylene-propylene-diene terpolymer (EPDM) as a base polymer and ethylene-vinyl acetate copolymer (EVA) compatible with EPDM and to be covulcanized during vulcanization as a reinforcing polymer, in amounts of 60 parts by weight of EPDM to 40 parts by weight of EVA. The ferrite powder is mixed in an amount of 500 parts by weight per 100 parts by weight of the blend polymer. <MATH>