Fire safety design requirements for fire elevator electrical systems - Solutions - Huaqiang Electronic Network
Fire power and electrical systems are reliable guarantees for the normal operation of fire elevators. Therefore, the fire safety of electrical systems is also a crucial link.
Fire power supply
The fire elevator should have two power sources. In addition to the power supply provided by the daily line, the special emergency power supply to the fire-fighting elevator shall adopt a special power supply circuit, and shall be clearly marked so as not to be affected by the fire and power failure. The line laying shall comply with the distribution line of the fire-fighting equipment. Provisions.
2. Dedicated button
The fire elevator should have an operation button for the firefighters on the first floor. This device is a universal button unique to the fire elevator and is installed in the unlocking device beside the fire elevator door. When the firefighter presses this button, the fire elevator can be forced down to the bottom floor or any designated floor. At the same time, the work elevator is stopped and falls to the bottom floor, the fire power supply starts to work, and the exhaust fan is turned on.
3. Function conversion
In normal times, the fire elevator can be used as a work elevator, and when it is fired, it will be converted into a fire elevator. A conversion device should be provided in the control system so that the fire can quickly change the conditions of use and adapt to the special requirements of the fire elevator.
4. Emergency lighting
Emergency lighting shall be provided in the fire elevator and its front room to ensure that firefighters can work normally.
5. Dedicated phone and control buttons
Dedicated telephones and operating buttons should be provided in the fire elevator car so that firefighters can maintain contact with the outside world during firefighting and rescue, and can also directly contact the fire control center. The manipulation button is a device for the firefighters to operate the elevator themselves.
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