FLEXIBLE ATTACHABLE FIRE-RESISTANT CABLE PENETRATION FOR THIN-WALLED BARRIERS Russian patent published in 2021 - IPC H02G3/22 E04B1/94 F16L5/04 

FIELD: fire protection.

SUBSTANCE: invention relates to passive fire protection devices and can be used to prevent the spread of fire from one room to another during the construction and installation of equipment in the presence of thin-walled fire barriers. The task is solved by a flexible overhead fire-resistant cable penetration for thin-walled barriers, including a fire-resistant flexible casing with fire-resistant electrical cables located in it, between which fire-resistant deformation elements are inserted. The casing has a conical shape, the upper narrowed part of which is designed for uniform tightening with fire-resistant metal clamps of the surface of the casing with cables located in it, and the lower expanded part of the casing has a free edge for fastening to the protected opening of a fire-resistant barrier along its outer perimeter using metal fire-resistant dished rods.

EFFECT: possibility of installing a fire-resistant cable penetration outside a thin-walled fire-resistant barrier with a thickness of 150 mm or less, through which the cable line passes.

1 cl, 2 dwg