Canada Wood Today | The Canada Wood Group

Successful Fire Test for Service Equipment Openings

Hidehiko Fumoto

By Hidehiko Fumoto

Deputy Director and Manager Technical Services, Canada Wood Japan

May 30, 2017

As part of ongoing work to advance fire resistive construction a 2-hour fire resistive test was conducted on May 25th for service equipment openings such as electric outlets.  After COFI and the Japan 2×4 Home Builders Association collaboratively obtained the 2-hour fire resistive approvals for wall and floor assemblies, government experts requested additional tests to verify the performance of those assemblies against the fire compartment penetrations.  An outlet box manufacture proposed a proprietary designed product that should be protected from the 2-hour flame exposure.  Those boxes were installed in the wall assemblies and burnt in a vertical furnace at one of the MLIT-designated performance evaluation bodies; the Japan Testing Centre for Construction Materials, located in Soka City, Saitama Prefecture.  In order to confirm 2-hour fire resistive performance, the testing protocol requires 2-hour burning followed by the observation period 3 times the burning time; 6 hours.  After removing the gypsum boards, we were pleased to know that the assembly passed the test.  The specimen appeared to be very healthy; no charring on the wooden member surfaces, which is the pass/fail performance criteria.