| 摘要 |
PROBLEM TO BE SOLVED: To prevent flame, smoke, toxic and the like from flowing into a rear side of a wall even though a wiring box made of synthetic resin is adopted.SOLUTION: A fire resistant wiring box 1 includes a wiring box 10 made of synthetic resin, and a metal fire resistant cover 30 having a housing space 33 for housing the wiring box 10.SELECTED DRAWING: Figure 1 |
