| 摘要 |
<p>PURPOSE:To obtain the penetrating sections of wire-cable having heat-dissipating properties and heat-insulating properties by filling the air gaps of the penetrating sections with the molded form of inorganic powder with borax as main constituent. CONSTITUTION:A cable penetrating section 10 is formed to a wall 2, and a cable 1 is penetrated through the penetrating section 10. Molded forms 3 composed of borax, acrylic group synthetic resin emulsion, etc. are cut and worked in conformity with the shape of the air gap of the penetrating section 10, and laminated, thus shaping a fireproof penetrating section. Flame-retardant putty 4 in which inorganic powder is mixed with an only binder is applied onto the periphery of the cable 1 and the inner surface of the wall 2 in order to fast stick the molded forms 3, the cable 1 and the wall 2. Flame-retardant putty 5 is filled for keeping airtightness between the cable 1 and a calcium silicate board 6.</p> |
