before entering如何理解?(关于火灾与气体探测)? The buildings such as the Control Building, Outstations, Analyzer shelters, and Switchgear and Administration Buildings will have their own stand-alone fire detection and alarm systems.A comprehensive system will be provided that conforms to local building codes for fire detection and alarm.It is expected that Smoke detectors, manual call stations and alarm bells or sirens will be provided as a minimum.External visual alarms will also be provided. The building fire detection panel will be located inside the building entrance (lobby) and allow the location of the fire to be identified before entering . An audible alarm and beacon shall be provided outside the building. (E--C:关于火灾与气体探测系统) [ ]查看更多9个回答 . 4人已关注