Radiation protective device for the lead-through of cables
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United States of America Patent
Stats
-
Jun 30, 1987
Grant Date -
N/A
app pub date -
Mar 22, 1985
filing date -
Mar 23, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radiation protective device for a fire-protecting lead-through intended to accommodate electric, metal-encased cables passing through a metal wall, said lead-through comprising a frame having its opening filled with packing pieces, stay strips and an arrangement for compressing the block formed of the packing pieces, the protective device including metal shield plates inserted in their respective packing piece in a plane parallel with the packing piece block and covering, together with the through-passed cables, the entire cross-sectional area of each packing piece and forming upon compression of the block a continuous metal shield which is in electrically conducting contact with the frame, the stay strips and the cable casings.
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