In residential buildings, there are elderly people, children and physically disabled people who take elevators. Therefore, the state stipulates that residential elevators should be equipped with special elevator workers, and elevator workers belong to special equipment operators. They should undergo special training and be certified after passing the examination. Go to work. Residents take the elevator. If they encounter an elevator failure or a sudden power outage, they should never panic, and all listen to the arrangements and handling of the elevator workers after training and evaluation. Take the automatic elevator (that is, the elevator selection button function is placed on the automatic gear, and the elevator car is not equipped with a special elevator operator). If the elevator encounters a failure (the hall door cannot be started normally after the car door is closed, the internal selection level Floor failure, abnormal noise and vibration, contact with metal parts and numbness, etc.), passengers should immediately press the emergency stop, alarm button or use the car phone to inform the elevator maintenance personnel, do not open the hall door and Car doors, do not climb the safety window to avoid accidents. When the elevator is stopped due to a sudden power outage, passengers should try to keep calm and fail to notify the elevator maintenance staff as soon as possible. The command should be followed in order to safely exit the car. At present, the emergency power supply forms when the elevator is powered off are: (l) Emergency lighting device: When the elevator suddenly loses power while driving, the emergency lights in the elevator car should work immediately to keep the car normally illuminated. (2) Power failure operation (leveling device after power failure). The elevator will be supplied with power by the battery pack, so that the car will run to the nearest floor, and the door will be opened to make the passengers leave the car. The old-fashioned elevator does not have the above-mentioned device, and the maintenance staff can use the turning hand wheel of the machine room to make the elevator close to the level and make the passengers leave the car. In the event of a fire, how to deal with it in an emergency should be taken as soon as possible to the passengers who burned the floors: to the safety floor, and the doors of each hall should be closed to prevent the fire from spreading to other floors. Voltage Attenuator,Voltage Control Attenuator,Voltage Variable Attenuator,Voltage Controlled Attenuator Chengdu Zysen Technology Co., Ltd. , https://www.zysenmw.com