Fire resistance test equipment BFET

automaticbatteryflame

The Battery Fire Exposure Test is designed to evaluate the fire resistance performance of the complete REESS against exposure to fire from outside. It simulates the fire caused by a fuel spill from a vehicle and evaluates the time that if the driver and passengers have enough time to evacuate. The exposure to fire test shall be conducted with the complete REESS or with its subsystem(s) which can represent the performance of the complete system in the end use. The test includes 4 procedures: A) Preheating; B) Direct exposure to flame; C) Indirect exposure to flame, and; D) End of test. Phase A Preheating The fuel in the pan is ignited for 60 seconds, and the tested REESS is placed on the carrier which is 3m out of the burning pan. Phase B Direct exposure to flame The carrier with the tested REESS moves horizontally to the burning pan, and the tested REESS is directly exposed to fire for 70 seconds. The exposure time can be with additional 60 seconds as requested. Phase C Indirect exposure to flame The refractory brick carrier with a layer of refractory bricks moves to between the burning pan and the tested REESS carrier, and the tested REESS is exposed to the reduced fire for 60 seconds. Phase D End of test The extinguishing screen is moved between the burning pan and the refractory brick layer, and the flame is extinguished. The tested REESS is continuously observed until the surface temperature of the REESS cools down to ambient temperature or a period of 3 hours.