Hazards and protective measures in elevator inspection

Due to land restrictions, modern buildings are moving towards high-rise living direction, which makes the elevator greatly increased in importance, therefore, we must first deal with the elevator safety performance. When carrying out maintenance inspection, we must strictly abide by national standards and implement each inspection into practice. For elevator inspection work, in order to effectively improve the level of inspection, to avoid the resulting losses, it is very necessary to analyze the source of danger, and strengthen the corresponding preventive measures, in order to maintain the safety of workers.
 
 First, the elevator inspection exists in the main source of danger
 
　　1. Risk of falling injury
 
 In the elevator maintenance, the general fall injury has the following categories: First, the operator in the construction, because the layer door is not open and inadvertently fell into the wellway, causing injury to personnel; This will also cause the staff to move with the elevator and accidents, and in the elevator operation maintenance, the staff must carry out work on the top of the car, but this will raise the question, that is, once accidentally encountered which device, it is easy to crash.
 
　　2. Risk of mechanical injury
 
Elevator equipment itself is more bulky, so it has a lot of energy in operation, staff in the maintenance, it is easy to touch or even remove these components, which will cause some human-induced injuries. During maintenance, there are several types of common mechanical injuries: (1) The elevator room equipment is more concentrated, including the guide wheel, speed limiter, etc. , including rotating components, these components are generally in a state of telling operation, once exposed to their consequences can not be imagined. In particular, many components simply do not have protective devices, such as ventilators fan leaves, according to the actual investigation of the project, this is the most accidents occurred by maintenance personnel location. (2) In the process of the maintenance personnel to control the trolley, due to human operating reasons make the car move quickly, will drive the speed of the wheels of the trolley, so that the staff's hands and feet in danger. (3) When the car is in a working state, once the staff member's limbs are exposed to the guardrail, there is a good chance of contact with other facilities in the wellway, resulting in the corresponding mechanical damage. (4) When the construction workers are working at the bottom of the wellway, it is easy to have contact mechanical injuries if the car drops to the lowest point and the service personnel have not responded, or if the station is in the wrong position.
 
　　3. Risk of electrical injury
 
 Elevator in normal work when the current is very high, so the elevator inspection and maintenance, due to electrical reasons lead to the probability of accidents is relatively large, such as frequent leakage, arc burns, etc. , which is very harmful to the human body.
 
 After the elevator inspection and construction of the accident summary found that the source of injury mainly includes the following aspects: First, this is also the most occurring event, that is, due to improper operation of personnel in the operation, touched the exposed wire and the accident occurred. Analysis of it found that this is because the cable in the long-term use, the outer layer is destroyed so that the metal is exposed to the outside of the occurrence, second, in the staff inspection occurred static electricity phenomenon, and third, the operation touched the electrical protection switch, its start and stop will be accompanied by sparks, arcs, etc. , which will also pose a threat to the safety of staff.
 
 Second, elevator inspection work of the source of danger protection measures
 
　　1. Protection against fall damage
 
 If the actual need for the project to climb the ladder, we must do a good job of anti-slip measures, such as wearing anti-slip rubber shoes, protective helmets, etc. , in operation should also be careful to operate step-by-step ladder. If the length of the stairs is long, some protective measures need to be applied to the stairs. Referring to the relevant standards, if the elevation difference of the entire room is higher than half a meter, you need to set up a guardrail, but also to evacuate unrelated personnel.
 
　　2. Protection against mechanical injuries
 
 A qualified inspector in the operation, should pay attention to the specific situation of the engine room, understand the detailed location of various types of transmissions, and, every maintenance personnel must be clear, even if you are equipped with protective tools, the accident will still cause harm to themselves. For example, in operation due to the equipment told to run the gloves involved, because the time is too short so that the gloves are not completely separated from the human body, which will cause the corresponding accident. When working on a trolley, be sure to wear gloves to prevent the wheel accident caused by unstable wheels. In addition, when the speed of the trolley is too high, the staff engaged in the operation of the loose gate did not release their hands in time, will make the operator's hands hurt. If the construction site is on top of the car, you need to wear work shoes with protective materials to avoid injury to the foot caused by the opening and stopping of the car door. After moving the elevator control to the top floor, can not mistakenly press the button is it forward, the correct operation is to use the form of a click to control its slow upward, the purpose is to avoid high-speed movement in the case of head injury.
 
　　3. Protection against electrical injuries
 
 Inspectors in the elevator inspection, must do a good job of comprehensive inspection work, to use all the power tools to check, the problem of the settings must be handled in a timely manner, to prevent accidents due to tool reasons. If the target is an elevator that has been in use for many years, it is important to focus on whether its cable is damaged, try to avoid electric shock caused by leakage, and use the appropriate insulation measures. If the elevator working environment is wet, then staff need to focus on possible leakage locations to prevent electric shock damage due to wet environments.
 
 Elevator inspection work has a certain speciality, in order to prevent the safety of inspectors is threatened, we need to do a good job of safety inspection work, analysis of potential sources of danger, the above mentioned fall injury, mechanical injury, electrical injury to take targeted protection measures, strictly follow the corresponding rules and regulations, solidly promote the smooth progress of elevator inspection work.