ELECTRICAL COMMUNICATION HEADING Russian patent published in 2008 - IPC H02G3/22 

FIELD: electrical engineering.

SUBSTANCE: invention pertains to electrical engineering and is meant for electrical communication from a zone with ionisation radiation to a safe zone for service personnel of, for instance, an atomic power station. The heading has frame (1) with its own biological shield and plugs (2) fitted in it turned from each other, made from material of the biological shield, in each of which there is groove (3) for putting cable (4). Groove (3) is a narrow through passing V-shaped cut in the central part of the plug and is meant for inserting V-shaped insert liner (5) in it in the assembly process with formation of a gap between opposite inclined surfaces of the cut and the insert liner. Geometrical dimensions of the insert liner (5) are such that, the formed gap is comparable to the thickness of cable (4) put into the cut. Each subsequent plug is fitted with compact abutting to the butt end of the previous plug. The whole space of the heading is therefore filled with material of the biological shield, and the cable is reliably fixed inside the plugs, put in a curved channel due to interactive turning of the plugs.

EFFECT: increased protection from radiation, resistance to vibration, seismic resistance and effectiveness of the assembly.

6 cl, 4 dwg