Sound and light alarm luminosity generally reach the number of alarm
Fire automatic alarm system design specifications 5.5.1 fire emergency broadcast without fire automatic alarm system, fire alarm device should be set. 5.5.2 At least one fire alarm shall be provided for each fire zone, and its location shall be located at each floor walkway near the exit of the stairs.
The alarm device should be manually or automatically controlled. 5.5.3 When the fire alarm device is installed at a location where the ambient noise is greater than 60 dB, the sound pressure level of the audible alarm shall be 15 dB higher than the background noise. 8.3.1 Each fire partition shall be provided with at least one manual fire alarm button.
The distance from any location within a fire zone to the nearest manual fire alarm should not be greater than 30m. Manual fire alarm button should be set at the entrance of public places.
