| 摘要 |
PROBLEM TO BE SOLVED: To stably provide higher fire resistant function with respect to an electric wiring cable.SOLUTION: A sheet metal casing 2 is provided which covers an electric wiring cable 1 in the longitudinal direction. The casing 2 is composed of a pair of divided casings 2A and 2B. Inside of the respective divided casings 2A and 2B, a heat insulation material layer 3 is provided which is formed from a mat-like material composed of a fiber material selected from among a ceramic fiber material, a glass fiber wool, a rock wool and a molten slag fiber, or an inorganic porous. The external surface of the casing 2 is coated with a fire resistant paint layer 5 containing a resin material, a foaming agent, a carbonized material and a reaction catalyst. |
