Four questions about elevator failure

1. Will the elevator fall down when it breaks down?

Firefighters said that normally used elevators generally do not fall, and there are usually safety fall prevention devices at the bottom of the elevator to prevent the elevator from falling. In case of power failure, the safety device will not fail, so the elevator will not slide out of the elevator slot. Forcibly picking the door, jumping in the elevator and overloading are the three main causes of elevator accidents. In fact, expert tests have verified that forcibly picking the door and jumping in the elevator will not directly cause the elevator to fall, but it will make the normally running elevator suddenly take emergency measures, and the emergency stop will lead to the elevator door being locked and unable to be opened; The direct cause of elevator falling is the overload of people and loads.

2. Will being trapped in the elevator suffocate?

In the narrow elevator, once trapped for a long time, many passengers worry that it will lead to suffocation. Firefighters said that the elevators currently in use must meet the ventilation requirements before they can be put on the market. Any elevator has vents, which are not sealed. In addition, even if the elevator is powered off, the ventilation equipment also has standby power supply. There are many moving parts in the elevator. There are gaps in some connecting positions, such as the connection between the elevator wall and the elevator roof, which is generally enough for everyone to breathe.

3. Can passengers force the door open when trapped in the elevator?

Firefighters also remind you that if the elevator does not fall, it does not mean there is no danger. If passengers forcibly open the elevator door, it will not only lead to unnatural power failure of the elevator, but also increase the abnormal wear of elevator cables and brakes, affecting the effect of emergency braking of brakes and other equipment. At this time, there is a potential falling hazard. In fact, the root cause of elevator falling is long-term friction loss or man-made damage, so the elevator needs to be maintained every 15 days on average. When taking the elevator, we should also care about whether the tools are tested on time and whether there are unsafe factors.

4. What's the safest thing to do for a trapped elevator?

"To get help as soon as possible, to keep calm and to ask for help." Firefighters said that there is an emergency telephone or intercom system in the elevator, which can contact the outside world in time, and press the alarm bell on the subscript plate to give an alarm. Most elevators are covered with mobile phone signals. Trapped people can call the "elevator maintenance phone" or "emergency repair phone" on the safety inspection qualified sign to ask professional elevator maintenance personnel for help; You can also call 119 or 110 for help from firefighters or police. In addition, you can also tap the door with your hand and send a distress signal.