地铁客运服务英语课件unit7.pptVIP

Unit 7 Fire Alarm System 防灾报警系统 Unit Aim You will be able to Remember some words about fire alarm system Introduce the composition and profile of fire alarm system Describe the function and working procedure of fire alarm system Advised Hours: 2 class hours Top 10 subways in the world 1. The role of fire extinguish device is promptly extinguished the fire in subway station. 2. The role of emergency alarm call is inform people with voice fire . 3. The role of temperature probe is reaches a certain temperature on alarm . 4. The role of control module is control the action of each hardware. 5. The role of CCTV is monitoring site conditions. 6. The role of broadcasting system is promptly inform passengers of the current situation. (David is from America. He is talking about the Beijing Subway with Mr. Zhang. ) David: Can you tell me the full name of FAS? Mr. Zhang: Sure. FAS mean fire alarm system. David: So what is the function of it? Mr. Zhang: Well, it has at least three functions, such as fire alarm, automatic spray extinguishing, and alarm linkage. David: Then what does FAS consist of? Mr. Zhang: Basically it contains a supervising and managing center, control panel, floor display, detector, control module and manual alarm. David: And can you tell me its working principle? Mr. Zhang: Once the detector measures smoke, it will automatically send an alarm signal. And it will activate automatic spray device to extinguish fire in time. David: Oh, it seems that FAS has a perfect function. Mr. Zhang: Right. Because subway is an underground transport, it will cause great loss if fire cannot be extinguished in time. 1. Please list all the mode names of FAS. ______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________ 2. What’s the function of FAS? ___________________________________________________________________