Cases of accidents resulting from failure to implement LOTO
Last week I go to the workshop check, see the packaging machine is conveyor belt repair, then looked at stood in front of the equipment, just finished the equipment maintenance, maintenance man ready for commissioning, two bunkers to fastening and found the chain conveyor belt is a little loose, just ready to try the hand chain elastic belt suddenly started, two people immediately withdrawn his hand from, and press the stop button. No harm was done. It turned out to be a maintenance worker to see the equipment maintenance is finished, said to boot to try (the equipment is 10 meters away from the maintenance point), went to the control point directly started the packaging machine. And packaging machine maintenance personnel do not know, (Tagout personnel started the equipment, but the equipment did not press the emergency stop switch). Later, when asked why the maintenance personnel of the packaging machine started the switch directly, he said that he had told everyone that he was going to open the equipment before opening the equipment, but the on-site personnel did not hear. There are several problems in this matter. Although the tag was suspended and the Tagout staff started the switch, they did not confirm it before starting and did not press the emergency stop switch during maintenance. (In the case of pressing the emergency stop switch, the machine must first reset the emergency stop switch) coupled with the lack of communication caused the occurrence of false alarm events.
The production department issued a bill for maintenance of lifting equipment (driving). At that time, the safety management department explicitly stipulated that Lockout tagout must be performed before maintenance. However, two maintenance workers (electricians) had weak safety awareness and forgot to carry safety warning signs during maintenance, and one employee directly wrote a note forbidding closing. Post on the power switch of the equipment to be repaired and start maintenance. When the staff of this station want to use the car, they close the gate conveniently, but there are people inside. I’m sure you’re asking didn’t there be a no-switch note? Ah, summer workshop temperature is relatively high, station operation staff cooling is a strong floor fan. The warning note posted by the maintenance electrician was blown off by the fan, which caused the employee to close the switch and caused the accident!!
Belt conveyor misoperation accident. One day in April 2012, inspection workers found that the raw coal conveyor conveyor belt even outlet opened, immediately inform the operator of the belt into maintenance downtime, but due to time is compact, power was not on the belt conveyor, maintenance of the belt directly, in the process of maintenance, control of the operator from listening to the wrong equipment number, driving the belt, but caused no casualties.
Post time: Apr-09-2022