Lead-through for the fireproof disposition of electric cables th

Details Lead-through for the fireproof disposition of electric cables th Lead-through for the fireproof disposition of electric cables th

1979-11-15

1981-09-22

Rubinson, Gene Z.

Electricity: conductors and insulators

Overhead

Towers, poles or posts

169 48, 248 56, H02G 322

Patent

active

042911958

ABSTRACT:
A fireproof lead-through with a frame, comprising at least one frame half for fitting on one side of a wall with a rectangularly shaped pack of packing blocks through which cables pass filling the opening in each frame half, and engaging with it peripheral portions in channel-like profiled portions in each frame half. Stay strips with a special configuration engage with their ends in the profiled portions for stiffening the pack of blocks. The transit is made pressure-tight by the use of conventional wedging means or pouring composition.

REFERENCES:
patent: 2732226 (1956-01-01), Brattberg
patent: 3282544 (1966-11-01), Brattberg
patent: 3489440 (1970-01-01), Brattberg
patent: 4093818 (1978-06-01), Thwaites et al.

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