The elevator is dead. Is there a backup power supply?

Elevator is very common in our daily life, and many people often take it. At the same time, we all know that elevators are risky, so let's see if there is a backup power supply when the elevator fails. What if the elevator is out of power?

Is there a backup power supply for elevator power failure?

Residential elevators can have no backup power supply, and national laws do not explicitly require backup power supply. There are requirements for electrical design of national civil buildings. The 10-storey residential building is designed according to the second-class electricity load. They should have two power sources, a public power source and a standby power source. There is an emergency power supply in the elevator to supply power for emergency lighting and alarm bells. If there is a sudden power failure, the maintenance personnel must arrive half an hour after receiving the notice, and the biggest consequence is that there is no danger to the people. The power supply system should ensure that the power supply will not be interrupted in case of power failure or line failure, but there is no clear law in the country that elevators must be equipped with standby power supply. Of course, in case of sudden power failure or power supply line failure during elevator operation, the elevator will automatically stop running without any danger.

What if the elevator is out of power?

1. First, keep calm. Although the elevator is a closed space, it will not lack oxygen. However, some trapped passengers, often because of fear and anxiety, coupled with the uncertain waiting time for rescue, are prone to rapid heartbeat and difficulty breathing.

The key to rescue is to ask for help. You can press panic button, call 1 19, 1 10 for rescue, or call the property or family.

Don't try to pry open the elevator door, and don't try to climb out of the elevator (if the elevator resumes running halfway, the consequences will be unimaginable).

4. Non-professionals should not take measures at will. Behind every major elevator accident, some smart people paid the price of their lives.

5. If the elevator is descending, you can try to grasp the handrail or the elevator wall with both hands and bend your legs straight against the elevator wall to reduce the damage to joints and spine.

A family of four in Jilin was trapped in the elevator due to power failure.

On September 26th, a family of four in Yanbian, Jilin Province took the elevator down to the parking lot on the first floor. Unfortunately, the power went out suddenly, and the car stopped against the wall when the elevator stopped. Instead of yelling and slamming the elevator door, Ms. Liu fed her children as usual to distract them. She tried to dial the phone several times while ringing the alarm, and finally got out of trouble with the help of her neighbors after 45 minutes. "Why didn't anyone inform the power outage in advance? Why can't they give notice in advance like stopping water? " Ms. Liu said. In this regard, the residential property said: "The residential area has been cut off for three times now, and I don't know when it will be cut off. Really caught off guard. "

Will the elevator fall down when there is a power failure?

No, these gaps are the usual tricks used by film and television dramas to create a tense and exciting atmosphere, but they are only a means of expression. In daily life, even when the elevator is running, all the wire ropes on the elevator are cut off, and the elevator will not fall, so in daily life, you don't have to worry that the elevator will suddenly start to fall. The safety protection device of the elevator is very perfect. First, the bearing capacity is strong, and there are many steel cables hanging independently. Usually, the elevator has at least three steel cables to control the movement of the elevator. Each cable has about 10 steel strands, and each steel strand consists of 1 ~ 10 steel wires. Generally speaking, only one steel cable is needed to undertake the full-load operation of the elevator. Moreover, the state stipulates that elevators should be overhauled regularly, and the loss of wire ropes should be checked every time. As long as there is a problem with one, all of them should be replaced.