【 Weak current College 】 extinguishing system operations control and security requirements outlined

Dry powder fire extinguishing system operations control:
1, dry powder fire extinguishing systems shall be equipped with automatic control, manual control and mechanical emergency operation three boot method. When the local application fire fighting systems for the protection of regular people may not place located automatic control.

2, equipped with automatic fire alarm systems, fire extinguishing system of automatic control should receive two separate fire detection signal to start. And should delay spray-and-drop, delay time should not be greater than 30s, and shall not be less than the dry storage container pressurization times.

3. all submerged fire extinguishing system for manual start unit should be set out in the protection zone adjacent to the outlet or evacuation channel easy to operate; local application fire fighting systems manually start unit should be located in the protection of the safety position near the object. Manually start the installation of the installation height should make it central location away from the ground 1.5m. All manual start unit should be clearly marked with the corresponding protection zone or the protection of the name of the object.

4, in close proximity to manually start the installation location should set manual emergency stop device, installed height should be the same as with manual start unit. Manual emergency stop device shall ensure that the extinguishing system can be started and spews fire extinguishing agent before the delay phase aborts. When using the manual emergency stop device, should ensure that you can manually start the installation again.

5. dry powder extinguishing systems and automatic control should be consistent with existing national standards of the automatic fire alarm system design code GB50116. When using pneumatic power source, you should ensure that the system operation and control of the gas pressure and consumption.

6, prefabricated fire extinguishing device can no mechanical emergency operation startup.

Dry powder fire extinguishing system security requirements:

1. protection zone and the entrance should be set to sound alarm fire protection district entrance should set powder extinguishing agent spews indicates the door light and dry powder fire extinguishing system for permanent signs.

2. protection zone in the aisle and export, you must ensure that staff in the safe evacuation in the 30s.

3. protection zone in the direction of the door should be opened, and an evacuation can automatically turn off, under any circumstances should be able to open the protection area.

4. protection zone entrance should be installed in automatic, manual transfer switch. Switch installation height should make the Centre distance ground 1.5m.

5, underground protection area and no form or supposes fixed sash of floor protection zones should be independent of mechanical ventilation devices, should lead to an outdoor outlet.

6. local application fire fighting systems, you should set the sound and light alarm fire.

7, when the system piping sets in potentially explosive atmospheres of places, such as the metal pieces should pipe network defense electrostatic grounding, anti-static grounding should be designed to comply with the national provisions of the existing standard.