Effects of Fire Compartmentation and Smoke Exhaust Measures on Smoke Spread Caused by Cable Fire in Utility Tunnel

Table 7

Comparison of smoke spread under working conditions 1 and 6.

Time		100 s (m)	200 s (m)	300 s (m)	400 s (m)	500 s (m)	700 s (m)
Horizontal spread distance	Working condition 1	66	165	200	200	200	200
	Working condition 6	60	110	200	200	200	200
Smoke layer thickness	Working condition 1	0.60	0.80	1.60	3.20	3.75	3.75
	Working condition 6	0.54	0.60	1.20	2.40	3.50	3.75