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

Table 6

Comparison of smoke layer temperatures under working conditions 1, 4, and 5.

Time	100 s (°C)	200 s (°C)	300 s (°C)	400 s (°C)	500 s (°C)	700 s (°C)
Working condition 1	110	140	270	300	343	382
Working condition 4	110	160	295	340	390	450
Working condition 5	110	150	290	330	380	390