English version machine-translated from the Vietnamese original — under review.
On 15/09/2022, NSCA set a new record in insulated fire damper testing with a single-body damper measuring W2000 x H1000 x L600 at class EI120, with the motor and blade opening/closing mechanism located entirely inside the furnace. This is a symmetrical insulated fire damper, installed in an opening in a fire-separating wall between 2 fire compartments. The successful test of this large single-body damper minimises the cases in which dampers must be combined into assemblies, significantly reducing the cost of insulated fire dampers compared with before.
