Fire safety design requirements for fire elevator ladders and cars - News - Global IC Trade Starts Here.

SMD aluminum electrolytic capacitor

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

Huaqiang Square Crystal Zhen full range of original stock

The fire elevator is the elevator car moving up and down in the elevator shaft through power. Therefore, this system should also have higher fire protection requirements.

1. The ladder well should be set independently

The ladder wells of fire-fighting elevators shall be separately provided separately from other vertical pipe wells. Cables for other purposes shall not be laid in the elevator shaft, and holes shall not be opened in the well wall. Between the adjacent elevator shaft and the engine room, partition walls with a fire resistance rating of not less than 2 hours shall be used; when opening the door, a Class A fire door shall be provided. It is strictly forbidden to lay flammable gas and liquid pipes of Class A, B and C in the well.

2. Fire resistance of elevator shaft

In order to ensure that the fire elevator can work in any fire situation, the wall of the elevator shaft must have sufficient fire resistance, and its fire resistance rating should generally not be less than 2.5 hours to 3 hours. The fire resistance grade of cast-in-place reinforced concrete structures is generally more than 3 hours.

3. Well and capacity

There should be no more than 2 elevators in the hoistway where the fire elevator is located. When designing, the top of the hoistway should take measures to remove the smoke heat. The load of the car should consider the weight of 8 to 10 firefighters, the minimum should not be less than 800 kg, and the net area should not be less than 1.4 square meters.

4. Car decoration

The interior decoration of the fire elevator car should be made of non-combustible materials, and the internal paging button should also have fire prevention measures to ensure that it will not lose its effect due to the influence of smoke and heat.