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

Table 4

Comparison of smoke layer temperatures under working conditions 1, 2, and 3.

Working condition	Screenshot of smoke layer temperature	Description
Working condition 1	t = 500 s	Smoke layer temperature 343°C
	t = 700 s	Smoke layer temperature 382°C
Working condition 2	t = 500 s	Smoke layer temperature 359°C
	t = 700 s	Smoke layer temperature 400°C
Working condition 3	t = 500 s	Smoke layer temperature 380°C
	t = 700 s	Smoke layer temperature 415°C