SECTION OF CURRENT LEAD TO ELECTRODRILL Russian patent published in 2004 - IPC

FIELD: boring technology. SUBSTANCE: section has boring pipe equipped with nipple and circular cam box connector, and cable section having a portion of twin-core cable ending with conical socket fixed on supports in circular cam and with rod of detachable contact connection. Contact connection of cable section is made in form of coaxial connector formed by concentrically mounted in isolation bushings hollow cylindrical conductors, which on one side are connected to cable cores, and on the other side are terminated with contact nosepieces. On the input of connector near the base of conical connection of the socket with the rod, pliers clamping device is mounted. EFFECT: increased reliability of operation of cable sections. 3 cl, 4 dwg