RISK ASSESSMENT AT WORK ON METAL-WORKING MACHINE OF TURNING GROUP
DOI:
https://doi.org/10.31734/agroengineering2018.01.187Keywords:
safety, risk of injury, danger zone, lathe, safety measuresAbstract
The work is aimed at studying the issue of assessing the risk of injury to workers when working on metal-working machines of turning group. List of possible risks of the three groups of threats is substantiated. The risks are caused by possible injury to the worker by the work piece (processing part), tool and turnings (metal cuttings). For each group of threats the probability of occurrence of events and the expected severity of injury to the employee is determined. Taking into account that when one operates on metal-working machines of turning group with manual control, hazardous zones for different groups of threats are characterized by stationary, and the workers are in these zones, performing production operations and auxiliary movements the determined time of the shift, in the article the duration of the employee's stay in the hazardous zone during the shift was proposed to evaluate by the duration indicator. The level of risk of a dangerous situation is based on the method of expert assessments, as a product of indicators of probability of events occurrence, severity of injury and duration of stay in the risk zone.
The results of the research show that the level of risk of a dangerous situation of injury by a work piece, tool or turnings (metal cuttings) is average, that is, work cannot be started without additional protective measures. Such a level of risk clearly indicates the prohibition of work on a machine that is not equipped with protective devices (screens), including screens that are interlocked with the start of the machine. A general additional protective measure can be considered as the need for worker in special clothing and glasses. Also, additional security measures are grounded and in the list of these recommendations the need to use additional equipment that reduces the probability of injuries to workers was proposed as well. The use of the proposed precautionary measures will minimize the health risks for workers when operate on metal-working machines of the turning group.
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