On the morning of April 13, 2022, the wechat work group of the steel rolling workshop of the third line of the bar plant of a certain steel company reported that there were occasional steel jams in the 12-meter linking material device. After the maintenance personnel completed the procedures such as operation plate registration, Lockout and tagout, they welded a steel plate onto the material receiving device. After the welding was completed, the maintenance personnel left the site and resumed production at 14:20 after completing the plate return and power supply procedures. Subsequently, during the inspection operation, the inspector failed to follow the requirements of the "Management System for Operation and Maintenance Plates of the Bar Plant of a certain steel Company" to handle the procedures for hanging the operation plate and shutting down or cutting off the power. Instead, he risked standing between the running blanking roller conveyor and the flush baffle to measure and was hit by the flush baffle by the round steel that automatically returned to the flush position on the blanking roller conveyor, resulting in his death.

To assist production and operation units in self-assessing whether their implementation of LOTO (Lockout/Tagout) complies with relevant standards, EHSWEEKLY has designed a detailed self-assessment form. This self-assessment form is compiled based on "Mechanical Safety Hazardous Energy Control Methods Lockout tagout" (GB/T 33579-2017) and the US OSHA 29 CFR 1910.147 standard, aiming to provide a comprehensive framework for inspecting and improving the implementation effect of the LOTO procedure. This self-assessment form covers eight main elements, each of which has specific evaluation items, including policies and procedures, equipment and tools, personnel training and awareness, implementation and record-keeping, review and improvement, accident prevention and response, machine protection and design, as well as continuous improvement and feedback. These areas together form a comprehensive evaluation system for assessing the integrity, effectiveness and continuous improvement capabilities of the LOTO program.