2020 Volume 26 Issue 63 Pages 585-590
According to the revision of the Building Standard Law in Japan in 2018, a new 10 minutes fire rated door was stipulated. Therefore, in order to grasp the flame interruption performance of the existing light steel door and to develop the specification of the 10 minutes fire rated door, flame interruption performance tests were conducted. As a result, it became clear that the followings are important as a specification required for the 10 minutes fire rated door. 1. The steel plate (0.5 mm or more) should not fall off by heating 2. Use tempered glass with fire protection performance of 5 mm or more in thickness etc.
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