A certain hangar is a Category II hangar. Among the following statements about the safe evacuation and power supply and distribution of the hangar, which one is incorrect ( ).

Answer: A

According to the "Fire Protection Code for Hangar Design" GB 50284-20086.0.3, there should be no less than 2 underground access trenches in the aircraft parking and maintenance area. There is an outdoor safety exit. Option A is incorrect; according to 8.1.1, the fire power supply load level of Class I and II hangars should be Level 1, and the fire power supply level of Class III hangars should not be lower than Level 2. Option B is correct. ; According to 8.2.1, the ground illumination of emergency lighting for evacuation in aircraft parking and maintenance areas should not be less than 1.0lx, option C is correct; according to 6.0.2, signs should be set up on the ground in aircraft parking and maintenance areas The evacuation direction and width of the evacuation passage should be permanently marked, and obvious signs should be set up at the safety exit. Option D is correct. The answer to this question is A.