CABLE ENTRY Russian patent published in 1999 - IPC

FIELD: electrical engineering; cable entries for use in liquid and gaseous media. SUBSTANCE: cable entry passing polymeric-sheath covered cable has cylindrical casing with flange and cylindrical packing held in compressed state. Casing is made of plastic material; its cylindrical section is thin- walled structure and packing is compressed due to plastic deformation of external surface of thin-walled section so that at least two annular grooves are formed on it, their longitudinal section being shaped as equal-side trapezium in which total length of small bases does not exceed half the length of thin- walled section of casing. One end of packing is supported by collar of inner hole in casing flange and its other end is loose; length of packing is greater than that of thin-walled section of casing by at least outer diameter of cable. EFFECT: improved reliability at high pressure of external media, simplified design, facilitated manufacture. 3 dwg