The necessity of Lockout tagout

The necessity of Lockout tagout

Heinrich’s law: when an enterprise has 300 hidden dangers or violations, there must be 29 minor injuries or failures, and 1 serious injury or death. This is the principle proposed by Heinrich for the management of insurance companies through the analysis of the occurrence frequency of work-related accidents. The ratio is 1:29:300, which is the ratio of death, serious injury, minor injury and no injury accidents. For different production processes and different types of accidents, the proportion may not be exactly the same, but this statistical rule shows that numerous accidents in the same activity will inevitably lead to the occurrence of major casualty accidents. Although there are accidental injury accidents, but unsafe factors in the process of operation activities have been exposed, if take part in activities at all levels of personnel to perform in strict accordance with the specification, seize the moment and in a timely manner to deal with all operation ticket, execution, according to the provisions of the specifications of the various activities link changes timely and correctly judge the, eliminate unsafe factors, these accidents can be avoided. In fact, behind each accident is not an isolated event, although the injury may occur suddenly in a moment, but is the result of a series of events.

The Lockout tagout procedure is divided into nine steps: prepare, inform, stop equipment, isolate, Lockout tagout, confirm, test, confirm operation, check and restore. Each step needs to be carried out carefully by operators, especially in the fifth step Lockout tagout. Is not simply hang lock is a just a matter of, must be finished in the first four, on the basis of using suitable locks, lock on the energy isolating device operation, and fill in the suspension “dangerous no operation” tag, all Lockout tagout people sign on the list of energy isolation and activity to the next step, work over, cleaning up, Left tools, materials, safety facilities reset, inform the head of each workshop, maintenance is finished, the equipment is in the state of start-up. In contrast to Lockout tagout, the unlock and retrieve procedures should not be taken lightly. Only after carefully checking, confirming and re-checking six steps can unlock and retrieve the energy source. When the operation extends to the next shift, the Lockout Tagout transfer procedure should be performed. All staff involved in the Lockout tagout transfer procedure must be on site and go through the relevant procedures in the Lockout Tagout transfer procedure bar in the Lockout Tagout Work Permit.