subject: Dry powder fire extinguishing system operation control and safety requirements outlined - dry powder fire extinguishing system, automatic fire, Wuhan [print this page] Dry powder fire extinguishing system operation control and safety requirements outlined - dry powder fire extinguishing system, automatic fire, Wuhan
Dry powder fire System Operation Control:
1, powder fire extinguishing system should be equipped with automatic control, manual control and mechanical emergency operation mode of three starts. When the local application Fire extinguishing system For the protection of sites was often set up control from time to time.
2, with Fire Automatic Alarm System, automatic fire extinguishing system should be in receipt of two independent fire detection signal to start. And spraying should be delayed release, the delay time should not be greater than the 30s, and not less than the pressurization time of dry storage containers.
3, total flooding fire extinguishing system should be set to manually start the device outside the protection zone near the exit or evacuation routes to facilitate operation of the place; local application fire-fighting system to manually start the device should be located in a secure location near the protected object. Manually start the installation height from the ground should make it the center of 1.5m. All manually start the device should be clearly indicated on the corresponding protection zone or the protection of the object's name.
4, manually start the device in close proximity to the site should be set to manual emergency stop device, the mounting height should be the same with the manual starter. Manual emergency stop device should ensure that fire fighting systems in the post and spout Extinguishing agent Delay before the suspension period. Using the manual emergency stop devices, it should ensure that you can manually start the installation starts again.
5, dry powder fire extinguishing system Power supply And control should be consistent with current national standards "automatic fire alarm system design" GB50116 the relevant requirements. When using pneumatic power source, ensure that system operation and control of the required gas pressure and gas consumption.
6, pre-fire suppression device can be started without mechanical emergency operation mode.
Dry powder fire extinguishing system security requirements:
1, protection should be located at the entrance area and the fire alarm sound, in the protection zone should be set at the entrance to spray dry powder extinguishing agent discharge instructions door light and dry powder fire extinguishing system of permanent signs.
2, aisle and exit protection area, must ensure that staff can be safely evacuated in the 30s.
3, protection areas should evacuate the direction of the door open, and can automatically shut down, in any case should be opened in protective areas.
4, in the protection zone should be installed at the entrance to automatic, manual transfer switch. Installation height should switch to the center from the ground 1.5m.
5, underground protection zones and no fixed casement window or set the ground in the protection zone should be set independent of the mechanical ventilation equipment, volleyball Tuyere Should lead to outdoor.
6, local application fire fighting system should be set to sound and light alarm fire.
7, when the system of pipes set in a time of explosion, pipeline network and other metal parts should be static ground defenses, anti-static grounding should be designed to meet the requirements of current national standards.
