Wiring principle of all kinds of fire fighting linkage control equipment
The basic principle is open circuit control. That is, different control signals are output according to different input signals.
Such as: smoke detector alarm signal input and output commands are as follows: start sound and light alarm, emergency radio, open the exhaust fan, landing elevator, power cutting off non fire power, open the quick exhaust valve preaction system etc..
When the fire is confirmed, the automatic control system should be able to close the air conditioner, the system module through the fresh air machine, blower, and close the layer control fire valve, automatic alarm system in engineering design in the fire, fire valve 70 ~ C temperature control is closed, can be directly linked to close the air-conditioning machine or the fresh air machine system, blower. In the high-rise building set mechanical exhaust basement and garage without direct access to the fire exits, when set the mechanical exhaust system should be set at the same time, ventilation system, power supply and the blower power supply should be according to the requirements of fire power.
