(19)
(11) EP 0 655 750 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.12.1995 Bulletin 1995/50

(43) Date of publication A2:
31.05.1995 Bulletin 1995/22

(21) Application number: 94118130.7

(22) Date of filing: 17.11.1994
(51) International Patent Classification (IPC)6: H01B 7/00
(84) Designated Contracting States:
DE FR GB

(30) Priority: 25.11.1993 JP 295611/93

(71) Applicant: SUMITOMO WIRING SYSTEMS, LTD.
Yokkaichi City Mie 510 (JP)

(72) Inventors:
  • Fujimoto, Terutsugu, c/o Sumitomo Wiring Sys, Ltd
    Yokkaichi-city, Mie, 510 (JP)
  • Higashikozono, Makoto,
    Yokkaichi-city, Mie, 510 (JP)
  • Hiroshi, Inoue, c/o Sumitomo Wiring Sys, Ltd
    Yokkaichi-city, Mie, 510 (JP)

(74) Representative: Müller-Boré & Partner Patentanwälte 
Grafinger Strasse 2
81671 München
81671 München (DE)


(56) References cited: : 
   
       


    (54) Coil type high-voltage resistive cable for preventing noise


    (57) [Object]
       To improve the dielectric strength and prevent a reduction in the noise preventing performance in a thin coil type high-voltage resistive cable having an outer diameter of 5 mm.
    [Construction]
       A rubber layer (12) is formed around the outer circumferential surface of a core (11) made of reinforced fibers by applying a coating material obtained by mixing fluororubber and ferrite powder. A resistance wire (13) is wound around an outer circumferential surface of the rubber layer (12) in an direction normal to the longitudinal axis of the core (11), thereby obtaining a conductor (20) having an outer diameter of 0.6 mm or smaller. A partially conductive inner conductor layer (15) is formed around the outer circumferential surface of the conductor (20) and a resin layer (16), a net (17) and a sheath (18) are formed around the inner conductor layer (15) one over another, such that the obtained resistive cable has an outer diameter of 5 mm or smaller. The rubber layer (12) is formed of mixture obtained by mixing 400 parts by weight of ferrite powder to 100 parts by weight of fluororubber, and the inner conductor layer 15 is formed of partially conductive polyolefin resin by means of extrusion.






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