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An electrode for a crusher and a crusher capable of increasing energy utilized for crushing are obtained. The electrode 1 for a crusher comprises a central conductor (12, 17) extending along a central axis and having an outer peripheral surface, an insulating member (13, 18) arranged on the outer pe

An electrode for a crusher and a crusher capable of increasing energy utilized for crushing are obtained. The electrode 1 for a crusher comprises a central conductor (12, 17) extending along a central axis and having an outer peripheral surface, an insulating member (13, 18) arranged on the outer peripheral surface of the central conductor (12, 17) and a peripheral conductor (15) arranged to enclose the insulating member (13, 18). The peripheral conductor (15) includes a first conductor (14a) and a second conductor (14b) arranged at a space from the first conductor (14a) in the extensional direction of the central axis.

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1. An electrode for a crusher, comprising:a central conductor extending along a central axis and having an outer peripheral surface; an insulating member arranged on the outer peripheral surface of said central conductor; and a peripheral conductor arranged to enclose said insulating member, wherein

1. An electrode for a crusher, comprising:a central conductor extending along a central axis and having an outer peripheral surface; an insulating member arranged on the outer peripheral surface of said central conductor; and a peripheral conductor arranged to enclose said insulating member, wherein said peripheral conductor includes: a first conductor, and a second conductor arranged at a space from said first conductor in the extensional direction of said central axis; and wherein said central conductor, said first conductor and said second conductor are electrically isolated from one another. 2. The electrode for a crusher according to claim 1, whereinsaid central conductor includes a discharge end, said first conductor is arranged sufficiently close to said discharge end in the extensional direction of said central axis to cause a discharge therebetween, said first conductor includes first and second end portions having relatively small diameters and a portion having a relatively large diameter between said first and second end portions. 3. The electrode for a crusher according to claim 1, wherein a projection is formed on at least either one of said first and second conductors.4. The electrode for a crusher according to claim 3, wherein said projection projects in a direction substantially parallel to the extensional direction of said central axis.5. The electrode for a crusher according to claim 3, wherein said projection projects in the radial direction of said central axis.6. The electrode for a crusher according to claim 3, wherein said projection includes:a first projection formed on either one of said first and second conductors, and a second projection formed on a position different from the position of said first projection in the circumferential direction of said central axis on at least either one of said first and second conductors. 7. The electrode for a crusher according to claim 1, wherein the length of at least either one of said first and second conductors is at least 10 mm in the extensional direction of said central axis.8. The electrode for a crusher according to claim 1, whereinsaid peripheral conductor includes at least one additional conductor arranged at a space from said second conductor in the extensional direction of said central axis. 9. The electrode for a crusher according to claim 8, wherein a projection is formed on at least one conductor selectedfrom a group consisting of said first conductor, said second conductor and said additional conductor. 10. The electrode for a crusher according to claim 9, wherein said projection projects in a direction substantially parallel to the extensional direction of said central axis.11. The electrode for a crusher according to claim 9, wherein said projection projects in the radial direction of said central axis.12. The electrode for a crusher according to claim 9, wherein said projection includes:a first projection formed on one conductor selected from the group consisting of said first conductor, the second conductor and the additional conductor, and a second projection formed on a position different from the position of said first projection in the circumferential direction of said central axis in at least one conductor selected from the group consisting of said first conductor, the second conductor and the additional conductor. 13. The electrode for a crusher according to claim 8, whereinthe length of at least one conductor selected from a group consisting of said first conductor, the second conductor and the additional conductor is at least 10 mm in the extensional direction of said central axis. 14. The electrode for a crusher according to claim 1, wherein said central conductor includes a stranded conductor, and said insulating member contains a flexible material.15. A crusher comprising the electrode for a crusher according to claim 1.