Finally arc self-extinction criterion is proposed to compute arc durations under the different conditions, which are corresponded with test results.
最后提出了电弧自熄判据，并以此计算了燃弧时间，与实测时间基本吻合。
2
The product adopt outstanding black extinction cloth with soft nap on the inner side, to eliminate the environment light disturbance and the monitor light self-reflection effectively.
产品内侧采用性能优异的黑色消光绒面，有效的消除环境光线的干扰和显示器自身光线的反射。
3
Ultra-transparent, super-insulating: its almost glass-like transparency, but also self-destroy the nature of fire extinction, fire prevention materials for the best light.