FIRE SPREAD PREVENTING DEVICE IN CABLE PENETRATION PART OF CONSTRUCTION

摘要

PURPOSE:To achieve the speedy construction by arranging a box-shaped divided body for preventing the spread of fire which is made of the incombustible material in the penetration part for a cable in the divided constitution part of a structure and submergence-inserting a cable in the fireproof incombustible or hardly combustible fluid which fills the inside of the divided body. CONSTITUTION:A box-shaped divided body 1 for preventing the spread of fire is fitted into a through port drilled on the wall A of a body so as to project inside and outside the wall A, and installed on a floor B. The divided body 1 is charged with the fireproof incombustible or hardly combustible fluid 2. A cable C in a cable shaft D is introduced into the fluid 2 in the divided body 1 through a cable introducing port 4, and after submergence-inserted in the gap from the vertical separating wall 3b of a cover body 3 on the inner bottom surface of the divided body 1, the cable C is pulled out to the floor side through a cable pulling-out port 5 and pulled into the part between the floor B and a free access floor B'.