MEDIUM AND HIGH VOLTAGE SEALED CABLE PENETRATION AND ITS PROTECTION Russian patent published in 2014 - IPC H02G3/22 

FIELD: electricity.

SUBSTANCE: invention is related to the field of electric engineering and namely to a sealed cable penetration used in cable systems. Medium and high voltage sealed cable penetration for containment of nuclear reactors contains at least one electric wire, wherein gaps between separate electric wires and/or other conducting materials in the penetration are filled with hardening insulating mix of homogenous structure. Protection of the sealed cable penetration contains an inner element formed by a layer of lead and an inner element formed by a layer of the homogenous mix.

EFFECT: invention ensures reducing of partial insulation failure and protection from penetration of harmful ionising radiation.

6 cl, 4 dwg